1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # 2 #
3 # Generic algorithms support 3 # Generic algorithms support
4 # 4 #
5 config XOR_BLOCKS 5 config XOR_BLOCKS
6 tristate 6 tristate
7 7
8 # 8 #
9 # async_tx api: hardware offloaded memory tran 9 # async_tx api: hardware offloaded memory transfer/transform support
10 # 10 #
11 source "crypto/async_tx/Kconfig" 11 source "crypto/async_tx/Kconfig"
12 12
13 # 13 #
14 # Cryptographic API Configuration 14 # Cryptographic API Configuration
15 # 15 #
16 menuconfig CRYPTO 16 menuconfig CRYPTO
17 tristate "Cryptographic API" 17 tristate "Cryptographic API"
18 select CRYPTO_LIB_UTILS 18 select CRYPTO_LIB_UTILS
19 help 19 help
20 This option provides the core Crypto 20 This option provides the core Cryptographic API.
21 21
22 if CRYPTO 22 if CRYPTO
23 23
24 menu "Crypto core or helper" 24 menu "Crypto core or helper"
25 25
26 config CRYPTO_FIPS 26 config CRYPTO_FIPS
27 bool "FIPS 200 compliance" 27 bool "FIPS 200 compliance"
28 depends on (CRYPTO_ANSI_CPRNG || CRYPT 28 depends on (CRYPTO_ANSI_CPRNG || CRYPTO_DRBG) && !CRYPTO_MANAGER_DISABLE_TESTS
29 depends on (MODULE_SIG || !MODULES) 29 depends on (MODULE_SIG || !MODULES)
30 help 30 help
31 This option enables the fips boot op 31 This option enables the fips boot option which is
32 required if you want the system to o 32 required if you want the system to operate in a FIPS 200
33 certification. You should say no un 33 certification. You should say no unless you know what
34 this is. 34 this is.
35 35
36 config CRYPTO_FIPS_NAME 36 config CRYPTO_FIPS_NAME
37 string "FIPS Module Name" 37 string "FIPS Module Name"
38 default "Linux Kernel Cryptographic AP 38 default "Linux Kernel Cryptographic API"
39 depends on CRYPTO_FIPS 39 depends on CRYPTO_FIPS
40 help 40 help
41 This option sets the FIPS Module nam 41 This option sets the FIPS Module name reported by the Crypto API via
42 the /proc/sys/crypto/fips_name file. 42 the /proc/sys/crypto/fips_name file.
43 43
44 config CRYPTO_FIPS_CUSTOM_VERSION 44 config CRYPTO_FIPS_CUSTOM_VERSION
45 bool "Use Custom FIPS Module Version" 45 bool "Use Custom FIPS Module Version"
46 depends on CRYPTO_FIPS 46 depends on CRYPTO_FIPS
47 default n 47 default n
48 48
49 config CRYPTO_FIPS_VERSION 49 config CRYPTO_FIPS_VERSION
50 string "FIPS Module Version" 50 string "FIPS Module Version"
51 default "(none)" 51 default "(none)"
52 depends on CRYPTO_FIPS_CUSTOM_VERSION 52 depends on CRYPTO_FIPS_CUSTOM_VERSION
53 help 53 help
54 This option provides the ability to 54 This option provides the ability to override the FIPS Module Version.
55 By default the KERNELRELEASE value i 55 By default the KERNELRELEASE value is used.
56 56
57 config CRYPTO_ALGAPI 57 config CRYPTO_ALGAPI
58 tristate 58 tristate
59 select CRYPTO_ALGAPI2 59 select CRYPTO_ALGAPI2
60 help 60 help
61 This option provides the API for cry 61 This option provides the API for cryptographic algorithms.
62 62
63 config CRYPTO_ALGAPI2 63 config CRYPTO_ALGAPI2
64 tristate 64 tristate
65 65
66 config CRYPTO_AEAD 66 config CRYPTO_AEAD
67 tristate 67 tristate
68 select CRYPTO_AEAD2 68 select CRYPTO_AEAD2
69 select CRYPTO_ALGAPI 69 select CRYPTO_ALGAPI
70 70
71 config CRYPTO_AEAD2 71 config CRYPTO_AEAD2
72 tristate 72 tristate
73 select CRYPTO_ALGAPI2 73 select CRYPTO_ALGAPI2
74 !! 74 select CRYPTO_NULL2
75 config CRYPTO_SIG !! 75 select CRYPTO_RNG2
76 tristate <<
77 select CRYPTO_SIG2 <<
78 select CRYPTO_ALGAPI <<
79 <<
80 config CRYPTO_SIG2 <<
81 tristate <<
82 select CRYPTO_ALGAPI2 <<
83 76
84 config CRYPTO_SKCIPHER 77 config CRYPTO_SKCIPHER
85 tristate 78 tristate
86 select CRYPTO_SKCIPHER2 79 select CRYPTO_SKCIPHER2
87 select CRYPTO_ALGAPI 80 select CRYPTO_ALGAPI
88 select CRYPTO_ECB <<
89 81
90 config CRYPTO_SKCIPHER2 82 config CRYPTO_SKCIPHER2
91 tristate 83 tristate
92 select CRYPTO_ALGAPI2 84 select CRYPTO_ALGAPI2
>> 85 select CRYPTO_RNG2
93 86
94 config CRYPTO_HASH 87 config CRYPTO_HASH
95 tristate 88 tristate
96 select CRYPTO_HASH2 89 select CRYPTO_HASH2
97 select CRYPTO_ALGAPI 90 select CRYPTO_ALGAPI
98 91
99 config CRYPTO_HASH2 92 config CRYPTO_HASH2
100 tristate 93 tristate
101 select CRYPTO_ALGAPI2 94 select CRYPTO_ALGAPI2
102 95
103 config CRYPTO_RNG 96 config CRYPTO_RNG
104 tristate 97 tristate
105 select CRYPTO_RNG2 98 select CRYPTO_RNG2
106 select CRYPTO_ALGAPI 99 select CRYPTO_ALGAPI
107 100
108 config CRYPTO_RNG2 101 config CRYPTO_RNG2
109 tristate 102 tristate
110 select CRYPTO_ALGAPI2 103 select CRYPTO_ALGAPI2
111 104
112 config CRYPTO_RNG_DEFAULT 105 config CRYPTO_RNG_DEFAULT
113 tristate 106 tristate
114 select CRYPTO_DRBG_MENU 107 select CRYPTO_DRBG_MENU
115 108
116 config CRYPTO_AKCIPHER2 109 config CRYPTO_AKCIPHER2
117 tristate 110 tristate
118 select CRYPTO_ALGAPI2 111 select CRYPTO_ALGAPI2
119 112
120 config CRYPTO_AKCIPHER 113 config CRYPTO_AKCIPHER
121 tristate 114 tristate
122 select CRYPTO_AKCIPHER2 115 select CRYPTO_AKCIPHER2
123 select CRYPTO_ALGAPI 116 select CRYPTO_ALGAPI
124 117
125 config CRYPTO_KPP2 118 config CRYPTO_KPP2
126 tristate 119 tristate
127 select CRYPTO_ALGAPI2 120 select CRYPTO_ALGAPI2
128 121
129 config CRYPTO_KPP 122 config CRYPTO_KPP
130 tristate 123 tristate
131 select CRYPTO_ALGAPI 124 select CRYPTO_ALGAPI
132 select CRYPTO_KPP2 125 select CRYPTO_KPP2
133 126
134 config CRYPTO_ACOMP2 127 config CRYPTO_ACOMP2
135 tristate 128 tristate
136 select CRYPTO_ALGAPI2 129 select CRYPTO_ALGAPI2
137 select SGL_ALLOC 130 select SGL_ALLOC
138 131
139 config CRYPTO_ACOMP 132 config CRYPTO_ACOMP
140 tristate 133 tristate
141 select CRYPTO_ALGAPI 134 select CRYPTO_ALGAPI
142 select CRYPTO_ACOMP2 135 select CRYPTO_ACOMP2
143 136
144 config CRYPTO_MANAGER 137 config CRYPTO_MANAGER
145 tristate "Cryptographic algorithm mana 138 tristate "Cryptographic algorithm manager"
146 select CRYPTO_MANAGER2 139 select CRYPTO_MANAGER2
147 help 140 help
148 Create default cryptographic templat 141 Create default cryptographic template instantiations such as
149 cbc(aes). 142 cbc(aes).
150 143
151 config CRYPTO_MANAGER2 144 config CRYPTO_MANAGER2
152 def_tristate CRYPTO_MANAGER || (CRYPTO 145 def_tristate CRYPTO_MANAGER || (CRYPTO_MANAGER!=n && CRYPTO_ALGAPI=y)
153 select CRYPTO_ACOMP2 <<
154 select CRYPTO_AEAD2 146 select CRYPTO_AEAD2
155 select CRYPTO_AKCIPHER2 <<
156 select CRYPTO_SIG2 <<
157 select CRYPTO_HASH2 147 select CRYPTO_HASH2
158 select CRYPTO_KPP2 <<
159 select CRYPTO_RNG2 <<
160 select CRYPTO_SKCIPHER2 148 select CRYPTO_SKCIPHER2
>> 149 select CRYPTO_AKCIPHER2
>> 150 select CRYPTO_KPP2
>> 151 select CRYPTO_ACOMP2
161 152
162 config CRYPTO_USER 153 config CRYPTO_USER
163 tristate "Userspace cryptographic algo 154 tristate "Userspace cryptographic algorithm configuration"
164 depends on NET 155 depends on NET
165 select CRYPTO_MANAGER 156 select CRYPTO_MANAGER
166 help 157 help
167 Userspace configuration for cryptogr 158 Userspace configuration for cryptographic instantiations such as
168 cbc(aes). 159 cbc(aes).
169 160
170 config CRYPTO_MANAGER_DISABLE_TESTS 161 config CRYPTO_MANAGER_DISABLE_TESTS
171 bool "Disable run-time self tests" 162 bool "Disable run-time self tests"
172 default y 163 default y
173 help 164 help
174 Disable run-time self tests that nor 165 Disable run-time self tests that normally take place at
175 algorithm registration. 166 algorithm registration.
176 167
177 config CRYPTO_MANAGER_EXTRA_TESTS 168 config CRYPTO_MANAGER_EXTRA_TESTS
178 bool "Enable extra run-time crypto sel 169 bool "Enable extra run-time crypto self tests"
179 depends on DEBUG_KERNEL && !CRYPTO_MAN 170 depends on DEBUG_KERNEL && !CRYPTO_MANAGER_DISABLE_TESTS && CRYPTO_MANAGER
180 help 171 help
181 Enable extra run-time self tests of 172 Enable extra run-time self tests of registered crypto algorithms,
182 including randomized fuzz tests. 173 including randomized fuzz tests.
183 174
184 This is intended for developer use o 175 This is intended for developer use only, as these tests take much
185 longer to run than the normal self t 176 longer to run than the normal self tests.
186 177
>> 178 config CRYPTO_GF128MUL
>> 179 tristate
>> 180
187 config CRYPTO_NULL 181 config CRYPTO_NULL
188 tristate "Null algorithms" 182 tristate "Null algorithms"
189 select CRYPTO_NULL2 183 select CRYPTO_NULL2
190 help 184 help
191 These are 'Null' algorithms, used by 185 These are 'Null' algorithms, used by IPsec, which do nothing.
192 186
193 config CRYPTO_NULL2 187 config CRYPTO_NULL2
194 tristate 188 tristate
195 select CRYPTO_ALGAPI2 189 select CRYPTO_ALGAPI2
196 select CRYPTO_SKCIPHER2 190 select CRYPTO_SKCIPHER2
197 select CRYPTO_HASH2 191 select CRYPTO_HASH2
198 192
199 config CRYPTO_PCRYPT 193 config CRYPTO_PCRYPT
200 tristate "Parallel crypto engine" 194 tristate "Parallel crypto engine"
201 depends on SMP 195 depends on SMP
202 select PADATA 196 select PADATA
203 select CRYPTO_MANAGER 197 select CRYPTO_MANAGER
204 select CRYPTO_AEAD 198 select CRYPTO_AEAD
205 help 199 help
206 This converts an arbitrary crypto al 200 This converts an arbitrary crypto algorithm into a parallel
207 algorithm that executes in kernel th 201 algorithm that executes in kernel threads.
208 202
209 config CRYPTO_CRYPTD 203 config CRYPTO_CRYPTD
210 tristate "Software async crypto daemon 204 tristate "Software async crypto daemon"
211 select CRYPTO_SKCIPHER 205 select CRYPTO_SKCIPHER
212 select CRYPTO_HASH 206 select CRYPTO_HASH
213 select CRYPTO_MANAGER 207 select CRYPTO_MANAGER
214 help 208 help
215 This is a generic software asynchron 209 This is a generic software asynchronous crypto daemon that
216 converts an arbitrary synchronous so 210 converts an arbitrary synchronous software crypto algorithm
217 into an asynchronous algorithm that 211 into an asynchronous algorithm that executes in a kernel thread.
218 212
219 config CRYPTO_AUTHENC 213 config CRYPTO_AUTHENC
220 tristate "Authenc support" 214 tristate "Authenc support"
221 select CRYPTO_AEAD 215 select CRYPTO_AEAD
222 select CRYPTO_SKCIPHER 216 select CRYPTO_SKCIPHER
223 select CRYPTO_MANAGER 217 select CRYPTO_MANAGER
224 select CRYPTO_HASH 218 select CRYPTO_HASH
225 select CRYPTO_NULL 219 select CRYPTO_NULL
226 help 220 help
227 Authenc: Combined mode wrapper for I 221 Authenc: Combined mode wrapper for IPsec.
228 222
229 This is required for IPSec ESP (XFRM 223 This is required for IPSec ESP (XFRM_ESP).
230 224
231 config CRYPTO_TEST 225 config CRYPTO_TEST
232 tristate "Testing module" 226 tristate "Testing module"
233 depends on m || EXPERT 227 depends on m || EXPERT
234 select CRYPTO_MANAGER 228 select CRYPTO_MANAGER
235 help 229 help
236 Quick & dirty crypto test module. 230 Quick & dirty crypto test module.
237 231
238 config CRYPTO_SIMD 232 config CRYPTO_SIMD
239 tristate 233 tristate
240 select CRYPTO_CRYPTD 234 select CRYPTO_CRYPTD
241 235
242 config CRYPTO_ENGINE 236 config CRYPTO_ENGINE
243 tristate 237 tristate
244 238
245 endmenu 239 endmenu
246 240
247 menu "Public-key cryptography" 241 menu "Public-key cryptography"
248 242
249 config CRYPTO_RSA 243 config CRYPTO_RSA
250 tristate "RSA (Rivest-Shamir-Adleman)" 244 tristate "RSA (Rivest-Shamir-Adleman)"
251 select CRYPTO_AKCIPHER 245 select CRYPTO_AKCIPHER
252 select CRYPTO_MANAGER 246 select CRYPTO_MANAGER
253 select MPILIB 247 select MPILIB
254 select ASN1 248 select ASN1
255 help 249 help
256 RSA (Rivest-Shamir-Adleman) public k 250 RSA (Rivest-Shamir-Adleman) public key algorithm (RFC8017)
257 251
258 config CRYPTO_DH 252 config CRYPTO_DH
259 tristate "DH (Diffie-Hellman)" 253 tristate "DH (Diffie-Hellman)"
260 select CRYPTO_KPP 254 select CRYPTO_KPP
261 select MPILIB 255 select MPILIB
262 help 256 help
263 DH (Diffie-Hellman) key exchange alg 257 DH (Diffie-Hellman) key exchange algorithm
264 258
265 config CRYPTO_DH_RFC7919_GROUPS 259 config CRYPTO_DH_RFC7919_GROUPS
266 bool "RFC 7919 FFDHE groups" 260 bool "RFC 7919 FFDHE groups"
267 depends on CRYPTO_DH 261 depends on CRYPTO_DH
268 select CRYPTO_RNG_DEFAULT 262 select CRYPTO_RNG_DEFAULT
269 help 263 help
270 FFDHE (Finite-Field-based Diffie-Hel 264 FFDHE (Finite-Field-based Diffie-Hellman Ephemeral) groups
271 defined in RFC7919. 265 defined in RFC7919.
272 266
273 Support these finite-field groups in 267 Support these finite-field groups in DH key exchanges:
274 - ffdhe2048, ffdhe3072, ffdhe4096, f 268 - ffdhe2048, ffdhe3072, ffdhe4096, ffdhe6144, ffdhe8192
275 269
276 If unsure, say N. 270 If unsure, say N.
277 271
278 config CRYPTO_ECC 272 config CRYPTO_ECC
279 tristate 273 tristate
280 select CRYPTO_RNG_DEFAULT 274 select CRYPTO_RNG_DEFAULT
281 275
282 config CRYPTO_ECDH 276 config CRYPTO_ECDH
283 tristate "ECDH (Elliptic Curve Diffie- 277 tristate "ECDH (Elliptic Curve Diffie-Hellman)"
284 select CRYPTO_ECC 278 select CRYPTO_ECC
285 select CRYPTO_KPP 279 select CRYPTO_KPP
286 help 280 help
287 ECDH (Elliptic Curve Diffie-Hellman) 281 ECDH (Elliptic Curve Diffie-Hellman) key exchange algorithm
288 using curves P-192, P-256, and P-384 282 using curves P-192, P-256, and P-384 (FIPS 186)
289 283
290 config CRYPTO_ECDSA 284 config CRYPTO_ECDSA
291 tristate "ECDSA (Elliptic Curve Digita 285 tristate "ECDSA (Elliptic Curve Digital Signature Algorithm)"
292 select CRYPTO_ECC 286 select CRYPTO_ECC
293 select CRYPTO_AKCIPHER 287 select CRYPTO_AKCIPHER
294 select ASN1 288 select ASN1
295 help 289 help
296 ECDSA (Elliptic Curve Digital Signat 290 ECDSA (Elliptic Curve Digital Signature Algorithm) (FIPS 186,
297 ISO/IEC 14888-3) 291 ISO/IEC 14888-3)
298 using curves P-192, P-256, and P-384 292 using curves P-192, P-256, and P-384
299 293
300 Only signature verification is imple 294 Only signature verification is implemented.
301 295
302 config CRYPTO_ECRDSA 296 config CRYPTO_ECRDSA
303 tristate "EC-RDSA (Elliptic Curve Russ 297 tristate "EC-RDSA (Elliptic Curve Russian Digital Signature Algorithm)"
304 select CRYPTO_ECC 298 select CRYPTO_ECC
305 select CRYPTO_AKCIPHER 299 select CRYPTO_AKCIPHER
306 select CRYPTO_STREEBOG 300 select CRYPTO_STREEBOG
307 select OID_REGISTRY 301 select OID_REGISTRY
308 select ASN1 302 select ASN1
309 help 303 help
310 Elliptic Curve Russian Digital Signa 304 Elliptic Curve Russian Digital Signature Algorithm (GOST R 34.10-2012,
311 RFC 7091, ISO/IEC 14888-3) 305 RFC 7091, ISO/IEC 14888-3)
312 306
313 One of the Russian cryptographic sta 307 One of the Russian cryptographic standard algorithms (called GOST
314 algorithms). Only signature verifica 308 algorithms). Only signature verification is implemented.
315 309
>> 310 config CRYPTO_SM2
>> 311 tristate "SM2 (ShangMi 2)"
>> 312 select CRYPTO_SM3
>> 313 select CRYPTO_AKCIPHER
>> 314 select CRYPTO_MANAGER
>> 315 select MPILIB
>> 316 select ASN1
>> 317 help
>> 318 SM2 (ShangMi 2) public key algorithm
>> 319
>> 320 Published by State Encryption Management Bureau, China,
>> 321 as specified by OSCCA GM/T 0003.1-2012 -- 0003.5-2012.
>> 322
>> 323 References:
>> 324 https://datatracker.ietf.org/doc/draft-shen-sm2-ecdsa/
>> 325 http://www.oscca.gov.cn/sca/xxgk/2010-12/17/content_1002386.shtml
>> 326 http://www.gmbz.org.cn/main/bzlb.html
>> 327
316 config CRYPTO_CURVE25519 328 config CRYPTO_CURVE25519
317 tristate "Curve25519" 329 tristate "Curve25519"
318 select CRYPTO_KPP 330 select CRYPTO_KPP
319 select CRYPTO_LIB_CURVE25519_GENERIC 331 select CRYPTO_LIB_CURVE25519_GENERIC
320 help 332 help
321 Curve25519 elliptic curve (RFC7748) 333 Curve25519 elliptic curve (RFC7748)
322 334
323 endmenu 335 endmenu
324 336
325 menu "Block ciphers" 337 menu "Block ciphers"
326 338
327 config CRYPTO_AES 339 config CRYPTO_AES
328 tristate "AES (Advanced Encryption Sta 340 tristate "AES (Advanced Encryption Standard)"
329 select CRYPTO_ALGAPI 341 select CRYPTO_ALGAPI
330 select CRYPTO_LIB_AES 342 select CRYPTO_LIB_AES
331 help 343 help
332 AES cipher algorithms (Rijndael)(FIP 344 AES cipher algorithms (Rijndael)(FIPS-197, ISO/IEC 18033-3)
333 345
334 Rijndael appears to be consistently 346 Rijndael appears to be consistently a very good performer in
335 both hardware and software across a 347 both hardware and software across a wide range of computing
336 environments regardless of its use i 348 environments regardless of its use in feedback or non-feedback
337 modes. Its key setup time is excelle 349 modes. Its key setup time is excellent, and its key agility is
338 good. Rijndael's very low memory req 350 good. Rijndael's very low memory requirements make it very well
339 suited for restricted-space environm 351 suited for restricted-space environments, in which it also
340 demonstrates excellent performance. 352 demonstrates excellent performance. Rijndael's operations are
341 among the easiest to defend against 353 among the easiest to defend against power and timing attacks.
342 354
343 The AES specifies three key sizes: 1 355 The AES specifies three key sizes: 128, 192 and 256 bits
344 356
345 config CRYPTO_AES_TI 357 config CRYPTO_AES_TI
346 tristate "AES (Advanced Encryption Sta 358 tristate "AES (Advanced Encryption Standard) (fixed time)"
347 select CRYPTO_ALGAPI 359 select CRYPTO_ALGAPI
348 select CRYPTO_LIB_AES 360 select CRYPTO_LIB_AES
349 help 361 help
350 AES cipher algorithms (Rijndael)(FIP 362 AES cipher algorithms (Rijndael)(FIPS-197, ISO/IEC 18033-3)
351 363
352 This is a generic implementation of 364 This is a generic implementation of AES that attempts to eliminate
353 data dependent latencies as much as 365 data dependent latencies as much as possible without affecting
354 performance too much. It is intended 366 performance too much. It is intended for use by the generic CCM
355 and GCM drivers, and other CTR or CM 367 and GCM drivers, and other CTR or CMAC/XCBC based modes that rely
356 solely on encryption (although decry 368 solely on encryption (although decryption is supported as well, but
357 with a more dramatic performance hit 369 with a more dramatic performance hit)
358 370
359 Instead of using 16 lookup tables of 371 Instead of using 16 lookup tables of 1 KB each, (8 for encryption and
360 8 for decryption), this implementati 372 8 for decryption), this implementation only uses just two S-boxes of
361 256 bytes each, and attempts to elim 373 256 bytes each, and attempts to eliminate data dependent latencies by
362 prefetching the entire table into th 374 prefetching the entire table into the cache at the start of each
363 block. Interrupts are also disabled 375 block. Interrupts are also disabled to avoid races where cachelines
364 are evicted when the CPU is interrup 376 are evicted when the CPU is interrupted to do something else.
365 377
366 config CRYPTO_ANUBIS 378 config CRYPTO_ANUBIS
367 tristate "Anubis" 379 tristate "Anubis"
368 depends on CRYPTO_USER_API_ENABLE_OBSO 380 depends on CRYPTO_USER_API_ENABLE_OBSOLETE
369 select CRYPTO_ALGAPI 381 select CRYPTO_ALGAPI
370 help 382 help
371 Anubis cipher algorithm 383 Anubis cipher algorithm
372 384
373 Anubis is a variable key length ciph 385 Anubis is a variable key length cipher which can use keys from
374 128 bits to 320 bits in length. It 386 128 bits to 320 bits in length. It was evaluated as a entrant
375 in the NESSIE competition. 387 in the NESSIE competition.
376 388
377 See https://web.archive.org/web/2016 389 See https://web.archive.org/web/20160606112246/http://www.larc.usp.br/~pbarreto/AnubisPage.html
378 for further information. 390 for further information.
379 391
380 config CRYPTO_ARIA 392 config CRYPTO_ARIA
381 tristate "ARIA" 393 tristate "ARIA"
382 select CRYPTO_ALGAPI 394 select CRYPTO_ALGAPI
383 help 395 help
384 ARIA cipher algorithm (RFC5794) 396 ARIA cipher algorithm (RFC5794)
385 397
386 ARIA is a standard encryption algori 398 ARIA is a standard encryption algorithm of the Republic of Korea.
387 The ARIA specifies three key sizes a 399 The ARIA specifies three key sizes and rounds.
388 128-bit: 12 rounds. 400 128-bit: 12 rounds.
389 192-bit: 14 rounds. 401 192-bit: 14 rounds.
390 256-bit: 16 rounds. 402 256-bit: 16 rounds.
391 403
392 See: 404 See:
393 https://seed.kisa.or.kr/kisa/algorit 405 https://seed.kisa.or.kr/kisa/algorithm/EgovAriaInfo.do
394 406
395 config CRYPTO_BLOWFISH 407 config CRYPTO_BLOWFISH
396 tristate "Blowfish" 408 tristate "Blowfish"
397 select CRYPTO_ALGAPI 409 select CRYPTO_ALGAPI
398 select CRYPTO_BLOWFISH_COMMON 410 select CRYPTO_BLOWFISH_COMMON
399 help 411 help
400 Blowfish cipher algorithm, by Bruce 412 Blowfish cipher algorithm, by Bruce Schneier
401 413
402 This is a variable key length cipher 414 This is a variable key length cipher which can use keys from 32
403 bits to 448 bits in length. It's fa 415 bits to 448 bits in length. It's fast, simple and specifically
404 designed for use on "large microproc 416 designed for use on "large microprocessors".
405 417
406 See https://www.schneier.com/blowfis 418 See https://www.schneier.com/blowfish.html for further information.
407 419
408 config CRYPTO_BLOWFISH_COMMON 420 config CRYPTO_BLOWFISH_COMMON
409 tristate 421 tristate
410 help 422 help
411 Common parts of the Blowfish cipher 423 Common parts of the Blowfish cipher algorithm shared by the
412 generic c and the assembler implemen 424 generic c and the assembler implementations.
413 425
414 config CRYPTO_CAMELLIA 426 config CRYPTO_CAMELLIA
415 tristate "Camellia" 427 tristate "Camellia"
416 select CRYPTO_ALGAPI 428 select CRYPTO_ALGAPI
417 help 429 help
418 Camellia cipher algorithms (ISO/IEC 430 Camellia cipher algorithms (ISO/IEC 18033-3)
419 431
420 Camellia is a symmetric key block ci 432 Camellia is a symmetric key block cipher developed jointly
421 at NTT and Mitsubishi Electric Corpo 433 at NTT and Mitsubishi Electric Corporation.
422 434
423 The Camellia specifies three key siz 435 The Camellia specifies three key sizes: 128, 192 and 256 bits.
424 436
425 See https://info.isl.ntt.co.jp/crypt 437 See https://info.isl.ntt.co.jp/crypt/eng/camellia/ for further information.
426 438
427 config CRYPTO_CAST_COMMON 439 config CRYPTO_CAST_COMMON
428 tristate 440 tristate
429 help 441 help
430 Common parts of the CAST cipher algo 442 Common parts of the CAST cipher algorithms shared by the
431 generic c and the assembler implemen 443 generic c and the assembler implementations.
432 444
433 config CRYPTO_CAST5 445 config CRYPTO_CAST5
434 tristate "CAST5 (CAST-128)" 446 tristate "CAST5 (CAST-128)"
435 select CRYPTO_ALGAPI 447 select CRYPTO_ALGAPI
436 select CRYPTO_CAST_COMMON 448 select CRYPTO_CAST_COMMON
437 help 449 help
438 CAST5 (CAST-128) cipher algorithm (R 450 CAST5 (CAST-128) cipher algorithm (RFC2144, ISO/IEC 18033-3)
439 451
440 config CRYPTO_CAST6 452 config CRYPTO_CAST6
441 tristate "CAST6 (CAST-256)" 453 tristate "CAST6 (CAST-256)"
442 select CRYPTO_ALGAPI 454 select CRYPTO_ALGAPI
443 select CRYPTO_CAST_COMMON 455 select CRYPTO_CAST_COMMON
444 help 456 help
445 CAST6 (CAST-256) encryption algorith 457 CAST6 (CAST-256) encryption algorithm (RFC2612)
446 458
447 config CRYPTO_DES 459 config CRYPTO_DES
448 tristate "DES and Triple DES EDE" 460 tristate "DES and Triple DES EDE"
449 select CRYPTO_ALGAPI 461 select CRYPTO_ALGAPI
450 select CRYPTO_LIB_DES 462 select CRYPTO_LIB_DES
451 help 463 help
452 DES (Data Encryption Standard)(FIPS 464 DES (Data Encryption Standard)(FIPS 46-2, ISO/IEC 18033-3) and
453 Triple DES EDE (Encrypt/Decrypt/Encr 465 Triple DES EDE (Encrypt/Decrypt/Encrypt) (FIPS 46-3, ISO/IEC 18033-3)
454 cipher algorithms 466 cipher algorithms
455 467
456 config CRYPTO_FCRYPT 468 config CRYPTO_FCRYPT
457 tristate "FCrypt" 469 tristate "FCrypt"
458 select CRYPTO_ALGAPI 470 select CRYPTO_ALGAPI
459 select CRYPTO_SKCIPHER 471 select CRYPTO_SKCIPHER
460 help 472 help
461 FCrypt algorithm used by RxRPC 473 FCrypt algorithm used by RxRPC
462 474
463 See https://ota.polyonymo.us/fcrypt- 475 See https://ota.polyonymo.us/fcrypt-paper.txt
464 476
465 config CRYPTO_KHAZAD 477 config CRYPTO_KHAZAD
466 tristate "Khazad" 478 tristate "Khazad"
467 depends on CRYPTO_USER_API_ENABLE_OBSO 479 depends on CRYPTO_USER_API_ENABLE_OBSOLETE
468 select CRYPTO_ALGAPI 480 select CRYPTO_ALGAPI
469 help 481 help
470 Khazad cipher algorithm 482 Khazad cipher algorithm
471 483
472 Khazad was a finalist in the initial 484 Khazad was a finalist in the initial NESSIE competition. It is
473 an algorithm optimized for 64-bit pr 485 an algorithm optimized for 64-bit processors with good performance
474 on 32-bit processors. Khazad uses a 486 on 32-bit processors. Khazad uses an 128 bit key size.
475 487
476 See https://web.archive.org/web/2017 488 See https://web.archive.org/web/20171011071731/http://www.larc.usp.br/~pbarreto/KhazadPage.html
477 for further information. 489 for further information.
478 490
479 config CRYPTO_SEED 491 config CRYPTO_SEED
480 tristate "SEED" 492 tristate "SEED"
481 depends on CRYPTO_USER_API_ENABLE_OBSO 493 depends on CRYPTO_USER_API_ENABLE_OBSOLETE
482 select CRYPTO_ALGAPI 494 select CRYPTO_ALGAPI
483 help 495 help
484 SEED cipher algorithm (RFC4269, ISO/ 496 SEED cipher algorithm (RFC4269, ISO/IEC 18033-3)
485 497
486 SEED is a 128-bit symmetric key bloc 498 SEED is a 128-bit symmetric key block cipher that has been
487 developed by KISA (Korea Information 499 developed by KISA (Korea Information Security Agency) as a
488 national standard encryption algorit 500 national standard encryption algorithm of the Republic of Korea.
489 It is a 16 round block cipher with t 501 It is a 16 round block cipher with the key size of 128 bit.
490 502
491 See https://seed.kisa.or.kr/kisa/alg 503 See https://seed.kisa.or.kr/kisa/algorithm/EgovSeedInfo.do
492 for further information. 504 for further information.
493 505
494 config CRYPTO_SERPENT 506 config CRYPTO_SERPENT
495 tristate "Serpent" 507 tristate "Serpent"
496 select CRYPTO_ALGAPI 508 select CRYPTO_ALGAPI
497 help 509 help
498 Serpent cipher algorithm, by Anderso 510 Serpent cipher algorithm, by Anderson, Biham & Knudsen
499 511
500 Keys are allowed to be from 0 to 256 512 Keys are allowed to be from 0 to 256 bits in length, in steps
501 of 8 bits. 513 of 8 bits.
502 514
503 See https://www.cl.cam.ac.uk/~rja14/ 515 See https://www.cl.cam.ac.uk/~rja14/serpent.html for further information.
504 516
505 config CRYPTO_SM4 517 config CRYPTO_SM4
506 tristate 518 tristate
507 519
508 config CRYPTO_SM4_GENERIC 520 config CRYPTO_SM4_GENERIC
509 tristate "SM4 (ShangMi 4)" 521 tristate "SM4 (ShangMi 4)"
510 select CRYPTO_ALGAPI 522 select CRYPTO_ALGAPI
511 select CRYPTO_SM4 523 select CRYPTO_SM4
512 help 524 help
513 SM4 cipher algorithms (OSCCA GB/T 32 525 SM4 cipher algorithms (OSCCA GB/T 32907-2016,
514 ISO/IEC 18033-3:2010/Amd 1:2021) 526 ISO/IEC 18033-3:2010/Amd 1:2021)
515 527
516 SM4 (GBT.32907-2016) is a cryptograp 528 SM4 (GBT.32907-2016) is a cryptographic standard issued by the
517 Organization of State Commercial Adm 529 Organization of State Commercial Administration of China (OSCCA)
518 as an authorized cryptographic algor 530 as an authorized cryptographic algorithms for the use within China.
519 531
520 SMS4 was originally created for use 532 SMS4 was originally created for use in protecting wireless
521 networks, and is mandated in the Chi 533 networks, and is mandated in the Chinese National Standard for
522 Wireless LAN WAPI (Wired Authenticat 534 Wireless LAN WAPI (Wired Authentication and Privacy Infrastructure)
523 (GB.15629.11-2003). 535 (GB.15629.11-2003).
524 536
525 The latest SM4 standard (GBT.32907-2 537 The latest SM4 standard (GBT.32907-2016) was proposed by OSCCA and
526 standardized through TC 260 of the S 538 standardized through TC 260 of the Standardization Administration
527 of the People's Republic of China (S 539 of the People's Republic of China (SAC).
528 540
529 The input, output, and key of SMS4 a 541 The input, output, and key of SMS4 are each 128 bits.
530 542
531 See https://eprint.iacr.org/2008/329 543 See https://eprint.iacr.org/2008/329.pdf for further information.
532 544
533 If unsure, say N. 545 If unsure, say N.
534 546
535 config CRYPTO_TEA 547 config CRYPTO_TEA
536 tristate "TEA, XTEA and XETA" 548 tristate "TEA, XTEA and XETA"
537 depends on CRYPTO_USER_API_ENABLE_OBSO 549 depends on CRYPTO_USER_API_ENABLE_OBSOLETE
538 select CRYPTO_ALGAPI 550 select CRYPTO_ALGAPI
539 help 551 help
540 TEA (Tiny Encryption Algorithm) ciph 552 TEA (Tiny Encryption Algorithm) cipher algorithms
541 553
542 Tiny Encryption Algorithm is a simpl 554 Tiny Encryption Algorithm is a simple cipher that uses
543 many rounds for security. It is ver 555 many rounds for security. It is very fast and uses
544 little memory. 556 little memory.
545 557
546 Xtendend Tiny Encryption Algorithm i 558 Xtendend Tiny Encryption Algorithm is a modification to
547 the TEA algorithm to address a poten 559 the TEA algorithm to address a potential key weakness
548 in the TEA algorithm. 560 in the TEA algorithm.
549 561
550 Xtendend Encryption Tiny Algorithm i 562 Xtendend Encryption Tiny Algorithm is a mis-implementation
551 of the XTEA algorithm for compatibil 563 of the XTEA algorithm for compatibility purposes.
552 564
553 config CRYPTO_TWOFISH 565 config CRYPTO_TWOFISH
554 tristate "Twofish" 566 tristate "Twofish"
555 select CRYPTO_ALGAPI 567 select CRYPTO_ALGAPI
556 select CRYPTO_TWOFISH_COMMON 568 select CRYPTO_TWOFISH_COMMON
557 help 569 help
558 Twofish cipher algorithm 570 Twofish cipher algorithm
559 571
560 Twofish was submitted as an AES (Adv 572 Twofish was submitted as an AES (Advanced Encryption Standard)
561 candidate cipher by researchers at C 573 candidate cipher by researchers at CounterPane Systems. It is a
562 16 round block cipher supporting key 574 16 round block cipher supporting key sizes of 128, 192, and 256
563 bits. 575 bits.
564 576
565 See https://www.schneier.com/twofish 577 See https://www.schneier.com/twofish.html for further information.
566 578
567 config CRYPTO_TWOFISH_COMMON 579 config CRYPTO_TWOFISH_COMMON
568 tristate 580 tristate
569 help 581 help
570 Common parts of the Twofish cipher a 582 Common parts of the Twofish cipher algorithm shared by the
571 generic c and the assembler implemen 583 generic c and the assembler implementations.
572 584
573 endmenu 585 endmenu
574 586
575 menu "Length-preserving ciphers and modes" 587 menu "Length-preserving ciphers and modes"
576 588
577 config CRYPTO_ADIANTUM 589 config CRYPTO_ADIANTUM
578 tristate "Adiantum" 590 tristate "Adiantum"
579 select CRYPTO_CHACHA20 591 select CRYPTO_CHACHA20
580 select CRYPTO_LIB_POLY1305_GENERIC 592 select CRYPTO_LIB_POLY1305_GENERIC
581 select CRYPTO_NHPOLY1305 593 select CRYPTO_NHPOLY1305
582 select CRYPTO_MANAGER 594 select CRYPTO_MANAGER
583 help 595 help
584 Adiantum tweakable, length-preservin 596 Adiantum tweakable, length-preserving encryption mode
585 597
586 Designed for fast and secure disk en 598 Designed for fast and secure disk encryption, especially on
587 CPUs without dedicated crypto instru 599 CPUs without dedicated crypto instructions. It encrypts
588 each sector using the XChaCha12 stre 600 each sector using the XChaCha12 stream cipher, two passes of
589 an ε-almost-∆-universal hash func 601 an ε-almost-∆-universal hash function, and an invocation of
590 the AES-256 block cipher on a single 602 the AES-256 block cipher on a single 16-byte block. On CPUs
591 without AES instructions, Adiantum i 603 without AES instructions, Adiantum is much faster than
592 AES-XTS. 604 AES-XTS.
593 605
594 Adiantum's security is provably redu 606 Adiantum's security is provably reducible to that of its
595 underlying stream and block ciphers, 607 underlying stream and block ciphers, subject to a security
596 bound. Unlike XTS, Adiantum is a tr 608 bound. Unlike XTS, Adiantum is a true wide-block encryption
597 mode, so it actually provides an eve 609 mode, so it actually provides an even stronger notion of
598 security than XTS, subject to the se 610 security than XTS, subject to the security bound.
599 611
600 If unsure, say N. 612 If unsure, say N.
601 613
602 config CRYPTO_ARC4 614 config CRYPTO_ARC4
603 tristate "ARC4 (Alleged Rivest Cipher 615 tristate "ARC4 (Alleged Rivest Cipher 4)"
604 depends on CRYPTO_USER_API_ENABLE_OBSO 616 depends on CRYPTO_USER_API_ENABLE_OBSOLETE
605 select CRYPTO_SKCIPHER 617 select CRYPTO_SKCIPHER
606 select CRYPTO_LIB_ARC4 618 select CRYPTO_LIB_ARC4
607 help 619 help
608 ARC4 cipher algorithm 620 ARC4 cipher algorithm
609 621
610 ARC4 is a stream cipher using keys r 622 ARC4 is a stream cipher using keys ranging from 8 bits to 2048
611 bits in length. This algorithm is r 623 bits in length. This algorithm is required for driver-based
612 WEP, but it should not be for other 624 WEP, but it should not be for other purposes because of the
613 weakness of the algorithm. 625 weakness of the algorithm.
614 626
615 config CRYPTO_CHACHA20 627 config CRYPTO_CHACHA20
616 tristate "ChaCha" 628 tristate "ChaCha"
617 select CRYPTO_LIB_CHACHA_GENERIC 629 select CRYPTO_LIB_CHACHA_GENERIC
618 select CRYPTO_SKCIPHER 630 select CRYPTO_SKCIPHER
619 help 631 help
620 The ChaCha20, XChaCha20, and XChaCha 632 The ChaCha20, XChaCha20, and XChaCha12 stream cipher algorithms
621 633
622 ChaCha20 is a 256-bit high-speed str 634 ChaCha20 is a 256-bit high-speed stream cipher designed by Daniel J.
623 Bernstein and further specified in R 635 Bernstein and further specified in RFC7539 for use in IETF protocols.
624 This is the portable C implementatio 636 This is the portable C implementation of ChaCha20. See
625 https://cr.yp.to/chacha/chacha-20080 637 https://cr.yp.to/chacha/chacha-20080128.pdf for further information.
626 638
627 XChaCha20 is the application of the 639 XChaCha20 is the application of the XSalsa20 construction to ChaCha20
628 rather than to Salsa20. XChaCha20 e 640 rather than to Salsa20. XChaCha20 extends ChaCha20's nonce length
629 from 64 bits (or 96 bits using the R 641 from 64 bits (or 96 bits using the RFC7539 convention) to 192 bits,
630 while provably retaining ChaCha20's 642 while provably retaining ChaCha20's security. See
631 https://cr.yp.to/snuffle/xsalsa-2008 643 https://cr.yp.to/snuffle/xsalsa-20081128.pdf for further information.
632 644
633 XChaCha12 is XChaCha20 reduced to 12 645 XChaCha12 is XChaCha20 reduced to 12 rounds, with correspondingly
634 reduced security margin but increase 646 reduced security margin but increased performance. It can be needed
635 in some performance-sensitive scenar 647 in some performance-sensitive scenarios.
636 648
637 config CRYPTO_CBC 649 config CRYPTO_CBC
638 tristate "CBC (Cipher Block Chaining)" 650 tristate "CBC (Cipher Block Chaining)"
639 select CRYPTO_SKCIPHER 651 select CRYPTO_SKCIPHER
640 select CRYPTO_MANAGER 652 select CRYPTO_MANAGER
641 help 653 help
642 CBC (Cipher Block Chaining) mode (NI 654 CBC (Cipher Block Chaining) mode (NIST SP800-38A)
643 655
644 This block cipher mode is required f 656 This block cipher mode is required for IPSec ESP (XFRM_ESP).
645 657
>> 658 config CRYPTO_CFB
>> 659 tristate "CFB (Cipher Feedback)"
>> 660 select CRYPTO_SKCIPHER
>> 661 select CRYPTO_MANAGER
>> 662 help
>> 663 CFB (Cipher Feedback) mode (NIST SP800-38A)
>> 664
>> 665 This block cipher mode is required for TPM2 Cryptography.
>> 666
646 config CRYPTO_CTR 667 config CRYPTO_CTR
647 tristate "CTR (Counter)" 668 tristate "CTR (Counter)"
648 select CRYPTO_SKCIPHER 669 select CRYPTO_SKCIPHER
649 select CRYPTO_MANAGER 670 select CRYPTO_MANAGER
650 help 671 help
651 CTR (Counter) mode (NIST SP800-38A) 672 CTR (Counter) mode (NIST SP800-38A)
652 673
653 config CRYPTO_CTS 674 config CRYPTO_CTS
654 tristate "CTS (Cipher Text Stealing)" 675 tristate "CTS (Cipher Text Stealing)"
655 select CRYPTO_SKCIPHER 676 select CRYPTO_SKCIPHER
656 select CRYPTO_MANAGER 677 select CRYPTO_MANAGER
657 help 678 help
658 CBC-CS3 variant of CTS (Cipher Text 679 CBC-CS3 variant of CTS (Cipher Text Stealing) (NIST
659 Addendum to SP800-38A (October 2010) 680 Addendum to SP800-38A (October 2010))
660 681
661 This mode is required for Kerberos g 682 This mode is required for Kerberos gss mechanism support
662 for AES encryption. 683 for AES encryption.
663 684
664 config CRYPTO_ECB 685 config CRYPTO_ECB
665 tristate "ECB (Electronic Codebook)" 686 tristate "ECB (Electronic Codebook)"
666 select CRYPTO_SKCIPHER2 !! 687 select CRYPTO_SKCIPHER
667 select CRYPTO_MANAGER 688 select CRYPTO_MANAGER
668 help 689 help
669 ECB (Electronic Codebook) mode (NIST 690 ECB (Electronic Codebook) mode (NIST SP800-38A)
670 691
671 config CRYPTO_HCTR2 692 config CRYPTO_HCTR2
672 tristate "HCTR2" 693 tristate "HCTR2"
673 select CRYPTO_XCTR 694 select CRYPTO_XCTR
674 select CRYPTO_POLYVAL 695 select CRYPTO_POLYVAL
675 select CRYPTO_MANAGER 696 select CRYPTO_MANAGER
676 help 697 help
677 HCTR2 length-preserving encryption m 698 HCTR2 length-preserving encryption mode
678 699
679 A mode for storage encryption that i 700 A mode for storage encryption that is efficient on processors with
680 instructions to accelerate AES and c 701 instructions to accelerate AES and carryless multiplication, e.g.
681 x86 processors with AES-NI and CLMUL 702 x86 processors with AES-NI and CLMUL, and ARM processors with the
682 ARMv8 crypto extensions. 703 ARMv8 crypto extensions.
683 704
684 See https://eprint.iacr.org/2021/144 705 See https://eprint.iacr.org/2021/1441
685 706
686 config CRYPTO_KEYWRAP 707 config CRYPTO_KEYWRAP
687 tristate "KW (AES Key Wrap)" 708 tristate "KW (AES Key Wrap)"
688 select CRYPTO_SKCIPHER 709 select CRYPTO_SKCIPHER
689 select CRYPTO_MANAGER 710 select CRYPTO_MANAGER
690 help 711 help
691 KW (AES Key Wrap) authenticated encr 712 KW (AES Key Wrap) authenticated encryption mode (NIST SP800-38F
692 and RFC3394) without padding. 713 and RFC3394) without padding.
693 714
694 config CRYPTO_LRW 715 config CRYPTO_LRW
695 tristate "LRW (Liskov Rivest Wagner)" 716 tristate "LRW (Liskov Rivest Wagner)"
696 select CRYPTO_LIB_GF128MUL <<
697 select CRYPTO_SKCIPHER 717 select CRYPTO_SKCIPHER
698 select CRYPTO_MANAGER 718 select CRYPTO_MANAGER
>> 719 select CRYPTO_GF128MUL
699 select CRYPTO_ECB 720 select CRYPTO_ECB
700 help 721 help
701 LRW (Liskov Rivest Wagner) mode 722 LRW (Liskov Rivest Wagner) mode
702 723
703 A tweakable, non malleable, non mova 724 A tweakable, non malleable, non movable
704 narrow block cipher mode for dm-cryp 725 narrow block cipher mode for dm-crypt. Use it with cipher
705 specification string aes-lrw-benbi, 726 specification string aes-lrw-benbi, the key must be 256, 320 or 384.
706 The first 128, 192 or 256 bits in th 727 The first 128, 192 or 256 bits in the key are used for AES and the
707 rest is used to tie each cipher bloc 728 rest is used to tie each cipher block to its logical position.
708 729
709 See https://people.csail.mit.edu/riv 730 See https://people.csail.mit.edu/rivest/pubs/LRW02.pdf
710 731
>> 732 config CRYPTO_OFB
>> 733 tristate "OFB (Output Feedback)"
>> 734 select CRYPTO_SKCIPHER
>> 735 select CRYPTO_MANAGER
>> 736 help
>> 737 OFB (Output Feedback) mode (NIST SP800-38A)
>> 738
>> 739 This mode makes a block cipher into a synchronous
>> 740 stream cipher. It generates keystream blocks, which are then XORed
>> 741 with the plaintext blocks to get the ciphertext. Flipping a bit in the
>> 742 ciphertext produces a flipped bit in the plaintext at the same
>> 743 location. This property allows many error correcting codes to function
>> 744 normally even when applied before encryption.
>> 745
711 config CRYPTO_PCBC 746 config CRYPTO_PCBC
712 tristate "PCBC (Propagating Cipher Blo 747 tristate "PCBC (Propagating Cipher Block Chaining)"
713 select CRYPTO_SKCIPHER 748 select CRYPTO_SKCIPHER
714 select CRYPTO_MANAGER 749 select CRYPTO_MANAGER
715 help 750 help
716 PCBC (Propagating Cipher Block Chain 751 PCBC (Propagating Cipher Block Chaining) mode
717 752
718 This block cipher mode is required f 753 This block cipher mode is required for RxRPC.
719 754
720 config CRYPTO_XCTR 755 config CRYPTO_XCTR
721 tristate 756 tristate
722 select CRYPTO_SKCIPHER 757 select CRYPTO_SKCIPHER
723 select CRYPTO_MANAGER 758 select CRYPTO_MANAGER
724 help 759 help
725 XCTR (XOR Counter) mode for HCTR2 760 XCTR (XOR Counter) mode for HCTR2
726 761
727 This blockcipher mode is a variant o 762 This blockcipher mode is a variant of CTR mode using XORs and little-endian
728 addition rather than big-endian arit 763 addition rather than big-endian arithmetic.
729 764
730 XCTR mode is used to implement HCTR2 765 XCTR mode is used to implement HCTR2.
731 766
732 config CRYPTO_XTS 767 config CRYPTO_XTS
733 tristate "XTS (XOR Encrypt XOR with ci 768 tristate "XTS (XOR Encrypt XOR with ciphertext stealing)"
734 select CRYPTO_SKCIPHER 769 select CRYPTO_SKCIPHER
735 select CRYPTO_MANAGER 770 select CRYPTO_MANAGER
736 select CRYPTO_ECB 771 select CRYPTO_ECB
737 help 772 help
738 XTS (XOR Encrypt XOR with ciphertext 773 XTS (XOR Encrypt XOR with ciphertext stealing) mode (NIST SP800-38E
739 and IEEE 1619) 774 and IEEE 1619)
740 775
741 Use with aes-xts-plain, key size 256 776 Use with aes-xts-plain, key size 256, 384 or 512 bits. This
742 implementation currently can't handl 777 implementation currently can't handle a sectorsize which is not a
743 multiple of 16 bytes. 778 multiple of 16 bytes.
744 779
745 config CRYPTO_NHPOLY1305 780 config CRYPTO_NHPOLY1305
746 tristate 781 tristate
747 select CRYPTO_HASH 782 select CRYPTO_HASH
748 select CRYPTO_LIB_POLY1305_GENERIC 783 select CRYPTO_LIB_POLY1305_GENERIC
749 784
750 endmenu 785 endmenu
751 786
752 menu "AEAD (authenticated encryption with asso 787 menu "AEAD (authenticated encryption with associated data) ciphers"
753 788
754 config CRYPTO_AEGIS128 789 config CRYPTO_AEGIS128
755 tristate "AEGIS-128" 790 tristate "AEGIS-128"
756 select CRYPTO_AEAD 791 select CRYPTO_AEAD
757 select CRYPTO_AES # for AES S-box tab 792 select CRYPTO_AES # for AES S-box tables
758 help 793 help
759 AEGIS-128 AEAD algorithm 794 AEGIS-128 AEAD algorithm
760 795
761 config CRYPTO_AEGIS128_SIMD 796 config CRYPTO_AEGIS128_SIMD
762 bool "AEGIS-128 (arm NEON, arm64 NEON) 797 bool "AEGIS-128 (arm NEON, arm64 NEON)"
763 depends on CRYPTO_AEGIS128 && ((ARM || 798 depends on CRYPTO_AEGIS128 && ((ARM || ARM64) && KERNEL_MODE_NEON)
764 default y 799 default y
765 help 800 help
766 AEGIS-128 AEAD algorithm 801 AEGIS-128 AEAD algorithm
767 802
768 Architecture: arm or arm64 using: 803 Architecture: arm or arm64 using:
769 - NEON (Advanced SIMD) extension 804 - NEON (Advanced SIMD) extension
770 805
771 config CRYPTO_CHACHA20POLY1305 806 config CRYPTO_CHACHA20POLY1305
772 tristate "ChaCha20-Poly1305" 807 tristate "ChaCha20-Poly1305"
773 select CRYPTO_CHACHA20 808 select CRYPTO_CHACHA20
774 select CRYPTO_POLY1305 809 select CRYPTO_POLY1305
775 select CRYPTO_AEAD 810 select CRYPTO_AEAD
776 select CRYPTO_MANAGER 811 select CRYPTO_MANAGER
777 help 812 help
778 ChaCha20 stream cipher and Poly1305 813 ChaCha20 stream cipher and Poly1305 authenticator combined
779 mode (RFC8439) 814 mode (RFC8439)
780 815
781 config CRYPTO_CCM 816 config CRYPTO_CCM
782 tristate "CCM (Counter with Cipher Blo 817 tristate "CCM (Counter with Cipher Block Chaining-MAC)"
783 select CRYPTO_CTR 818 select CRYPTO_CTR
784 select CRYPTO_HASH 819 select CRYPTO_HASH
785 select CRYPTO_AEAD 820 select CRYPTO_AEAD
786 select CRYPTO_MANAGER 821 select CRYPTO_MANAGER
787 help 822 help
788 CCM (Counter with Cipher Block Chain 823 CCM (Counter with Cipher Block Chaining-Message Authentication Code)
789 authenticated encryption mode (NIST 824 authenticated encryption mode (NIST SP800-38C)
790 825
791 config CRYPTO_GCM 826 config CRYPTO_GCM
792 tristate "GCM (Galois/Counter Mode) an 827 tristate "GCM (Galois/Counter Mode) and GMAC (GCM MAC)"
793 select CRYPTO_CTR 828 select CRYPTO_CTR
794 select CRYPTO_AEAD 829 select CRYPTO_AEAD
795 select CRYPTO_GHASH 830 select CRYPTO_GHASH
796 select CRYPTO_NULL 831 select CRYPTO_NULL
797 select CRYPTO_MANAGER 832 select CRYPTO_MANAGER
798 help 833 help
799 GCM (Galois/Counter Mode) authentica 834 GCM (Galois/Counter Mode) authenticated encryption mode and GMAC
800 (GCM Message Authentication Code) (N 835 (GCM Message Authentication Code) (NIST SP800-38D)
801 836
802 This is required for IPSec ESP (XFRM 837 This is required for IPSec ESP (XFRM_ESP).
803 838
804 config CRYPTO_GENIV !! 839 config CRYPTO_SEQIV
805 tristate !! 840 tristate "Sequence Number IV Generator"
806 select CRYPTO_AEAD 841 select CRYPTO_AEAD
>> 842 select CRYPTO_SKCIPHER
807 select CRYPTO_NULL 843 select CRYPTO_NULL
808 select CRYPTO_MANAGER <<
809 select CRYPTO_RNG_DEFAULT 844 select CRYPTO_RNG_DEFAULT
810 !! 845 select CRYPTO_MANAGER
811 config CRYPTO_SEQIV <<
812 tristate "Sequence Number IV Generator <<
813 select CRYPTO_GENIV <<
814 help 846 help
815 Sequence Number IV generator 847 Sequence Number IV generator
816 848
817 This IV generator generates an IV ba 849 This IV generator generates an IV based on a sequence number by
818 xoring it with a salt. This algorit 850 xoring it with a salt. This algorithm is mainly useful for CTR.
819 851
820 This is required for IPsec ESP (XFRM 852 This is required for IPsec ESP (XFRM_ESP).
821 853
822 config CRYPTO_ECHAINIV 854 config CRYPTO_ECHAINIV
823 tristate "Encrypted Chain IV Generator 855 tristate "Encrypted Chain IV Generator"
824 select CRYPTO_GENIV !! 856 select CRYPTO_AEAD
>> 857 select CRYPTO_NULL
>> 858 select CRYPTO_RNG_DEFAULT
>> 859 select CRYPTO_MANAGER
825 help 860 help
826 Encrypted Chain IV generator 861 Encrypted Chain IV generator
827 862
828 This IV generator generates an IV ba 863 This IV generator generates an IV based on the encryption of
829 a sequence number xored with a salt. 864 a sequence number xored with a salt. This is the default
830 algorithm for CBC. 865 algorithm for CBC.
831 866
832 config CRYPTO_ESSIV 867 config CRYPTO_ESSIV
833 tristate "Encrypted Salt-Sector IV Gen 868 tristate "Encrypted Salt-Sector IV Generator"
834 select CRYPTO_AUTHENC 869 select CRYPTO_AUTHENC
835 help 870 help
836 Encrypted Salt-Sector IV generator 871 Encrypted Salt-Sector IV generator
837 872
838 This IV generator is used in some ca 873 This IV generator is used in some cases by fscrypt and/or
839 dm-crypt. It uses the hash of the bl 874 dm-crypt. It uses the hash of the block encryption key as the
840 symmetric key for a block encryption 875 symmetric key for a block encryption pass applied to the input
841 IV, making low entropy IV sources mo 876 IV, making low entropy IV sources more suitable for block
842 encryption. 877 encryption.
843 878
844 This driver implements a crypto API 879 This driver implements a crypto API template that can be
845 instantiated either as an skcipher o 880 instantiated either as an skcipher or as an AEAD (depending on the
846 type of the first template argument) 881 type of the first template argument), and which defers encryption
847 and decryption requests to the encap 882 and decryption requests to the encapsulated cipher after applying
848 ESSIV to the input IV. Note that in 883 ESSIV to the input IV. Note that in the AEAD case, it is assumed
849 that the keys are presented in the s 884 that the keys are presented in the same format used by the authenc
850 template, and that the IV appears at 885 template, and that the IV appears at the end of the authenticated
851 associated data (AAD) region (which 886 associated data (AAD) region (which is how dm-crypt uses it.)
852 887
853 Note that the use of ESSIV is not re 888 Note that the use of ESSIV is not recommended for new deployments,
854 and so this only needs to be enabled 889 and so this only needs to be enabled when interoperability with
855 existing encrypted volumes of filesy 890 existing encrypted volumes of filesystems is required, or when
856 building for a particular system tha 891 building for a particular system that requires it (e.g., when
857 the SoC in question has accelerated 892 the SoC in question has accelerated CBC but not XTS, making CBC
858 combined with ESSIV the only feasibl 893 combined with ESSIV the only feasible mode for h/w accelerated
859 block encryption) 894 block encryption)
860 895
861 endmenu 896 endmenu
862 897
863 menu "Hashes, digests, and MACs" 898 menu "Hashes, digests, and MACs"
864 899
865 config CRYPTO_BLAKE2B 900 config CRYPTO_BLAKE2B
866 tristate "BLAKE2b" 901 tristate "BLAKE2b"
867 select CRYPTO_HASH 902 select CRYPTO_HASH
868 help 903 help
869 BLAKE2b cryptographic hash function 904 BLAKE2b cryptographic hash function (RFC 7693)
870 905
871 BLAKE2b is optimized for 64-bit plat 906 BLAKE2b is optimized for 64-bit platforms and can produce digests
872 of any size between 1 and 64 bytes. 907 of any size between 1 and 64 bytes. The keyed hash is also implemented.
873 908
874 This module provides the following a 909 This module provides the following algorithms:
875 - blake2b-160 910 - blake2b-160
876 - blake2b-256 911 - blake2b-256
877 - blake2b-384 912 - blake2b-384
878 - blake2b-512 913 - blake2b-512
879 914
880 Used by the btrfs filesystem. 915 Used by the btrfs filesystem.
881 916
882 See https://blake2.net for further i 917 See https://blake2.net for further information.
883 918
884 config CRYPTO_CMAC 919 config CRYPTO_CMAC
885 tristate "CMAC (Cipher-based MAC)" 920 tristate "CMAC (Cipher-based MAC)"
886 select CRYPTO_HASH 921 select CRYPTO_HASH
887 select CRYPTO_MANAGER 922 select CRYPTO_MANAGER
888 help 923 help
889 CMAC (Cipher-based Message Authentic 924 CMAC (Cipher-based Message Authentication Code) authentication
890 mode (NIST SP800-38B and IETF RFC449 925 mode (NIST SP800-38B and IETF RFC4493)
891 926
892 config CRYPTO_GHASH 927 config CRYPTO_GHASH
893 tristate "GHASH" 928 tristate "GHASH"
>> 929 select CRYPTO_GF128MUL
894 select CRYPTO_HASH 930 select CRYPTO_HASH
895 select CRYPTO_LIB_GF128MUL <<
896 help 931 help
897 GCM GHASH function (NIST SP800-38D) 932 GCM GHASH function (NIST SP800-38D)
898 933
899 config CRYPTO_HMAC 934 config CRYPTO_HMAC
900 tristate "HMAC (Keyed-Hash MAC)" 935 tristate "HMAC (Keyed-Hash MAC)"
901 select CRYPTO_HASH 936 select CRYPTO_HASH
902 select CRYPTO_MANAGER 937 select CRYPTO_MANAGER
903 help 938 help
904 HMAC (Keyed-Hash Message Authenticat 939 HMAC (Keyed-Hash Message Authentication Code) (FIPS 198 and
905 RFC2104) 940 RFC2104)
906 941
907 This is required for IPsec AH (XFRM_ 942 This is required for IPsec AH (XFRM_AH) and IPsec ESP (XFRM_ESP).
908 943
909 config CRYPTO_MD4 944 config CRYPTO_MD4
910 tristate "MD4" 945 tristate "MD4"
911 select CRYPTO_HASH 946 select CRYPTO_HASH
912 help 947 help
913 MD4 message digest algorithm (RFC132 948 MD4 message digest algorithm (RFC1320)
914 949
915 config CRYPTO_MD5 950 config CRYPTO_MD5
916 tristate "MD5" 951 tristate "MD5"
917 select CRYPTO_HASH 952 select CRYPTO_HASH
918 help 953 help
919 MD5 message digest algorithm (RFC132 954 MD5 message digest algorithm (RFC1321)
920 955
921 config CRYPTO_MICHAEL_MIC 956 config CRYPTO_MICHAEL_MIC
922 tristate "Michael MIC" 957 tristate "Michael MIC"
923 select CRYPTO_HASH 958 select CRYPTO_HASH
924 help 959 help
925 Michael MIC (Message Integrity Code) 960 Michael MIC (Message Integrity Code) (IEEE 802.11i)
926 961
927 Defined by the IEEE 802.11i TKIP (Te 962 Defined by the IEEE 802.11i TKIP (Temporal Key Integrity Protocol),
928 known as WPA (Wif-Fi Protected Acces 963 known as WPA (Wif-Fi Protected Access).
929 964
930 This algorithm is required for TKIP, 965 This algorithm is required for TKIP, but it should not be used for
931 other purposes because of the weakne 966 other purposes because of the weakness of the algorithm.
932 967
933 config CRYPTO_POLYVAL 968 config CRYPTO_POLYVAL
934 tristate 969 tristate
>> 970 select CRYPTO_GF128MUL
935 select CRYPTO_HASH 971 select CRYPTO_HASH
936 select CRYPTO_LIB_GF128MUL <<
937 help 972 help
938 POLYVAL hash function for HCTR2 973 POLYVAL hash function for HCTR2
939 974
940 This is used in HCTR2. It is not a 975 This is used in HCTR2. It is not a general-purpose
941 cryptographic hash function. 976 cryptographic hash function.
942 977
943 config CRYPTO_POLY1305 978 config CRYPTO_POLY1305
944 tristate "Poly1305" 979 tristate "Poly1305"
945 select CRYPTO_HASH 980 select CRYPTO_HASH
946 select CRYPTO_LIB_POLY1305_GENERIC 981 select CRYPTO_LIB_POLY1305_GENERIC
947 help 982 help
948 Poly1305 authenticator algorithm (RF 983 Poly1305 authenticator algorithm (RFC7539)
949 984
950 Poly1305 is an authenticator algorit 985 Poly1305 is an authenticator algorithm designed by Daniel J. Bernstein.
951 It is used for the ChaCha20-Poly1305 986 It is used for the ChaCha20-Poly1305 AEAD, specified in RFC7539 for use
952 in IETF protocols. This is the porta 987 in IETF protocols. This is the portable C implementation of Poly1305.
953 988
954 config CRYPTO_RMD160 989 config CRYPTO_RMD160
955 tristate "RIPEMD-160" 990 tristate "RIPEMD-160"
956 select CRYPTO_HASH 991 select CRYPTO_HASH
957 help 992 help
958 RIPEMD-160 hash function (ISO/IEC 10 993 RIPEMD-160 hash function (ISO/IEC 10118-3)
959 994
960 RIPEMD-160 is a 160-bit cryptographi 995 RIPEMD-160 is a 160-bit cryptographic hash function. It is intended
961 to be used as a secure replacement f 996 to be used as a secure replacement for the 128-bit hash functions
962 MD4, MD5 and its predecessor RIPEMD 997 MD4, MD5 and its predecessor RIPEMD
963 (not to be confused with RIPEMD-128) 998 (not to be confused with RIPEMD-128).
964 999
965 Its speed is comparable to SHA-1 and 1000 Its speed is comparable to SHA-1 and there are no known attacks
966 against RIPEMD-160. 1001 against RIPEMD-160.
967 1002
968 Developed by Hans Dobbertin, Antoon 1003 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
969 See https://homes.esat.kuleuven.be/~ 1004 See https://homes.esat.kuleuven.be/~bosselae/ripemd160.html
970 for further information. 1005 for further information.
971 1006
972 config CRYPTO_SHA1 1007 config CRYPTO_SHA1
973 tristate "SHA-1" 1008 tristate "SHA-1"
974 select CRYPTO_HASH 1009 select CRYPTO_HASH
975 select CRYPTO_LIB_SHA1 1010 select CRYPTO_LIB_SHA1
976 help 1011 help
977 SHA-1 secure hash algorithm (FIPS 18 1012 SHA-1 secure hash algorithm (FIPS 180, ISO/IEC 10118-3)
978 1013
979 config CRYPTO_SHA256 1014 config CRYPTO_SHA256
980 tristate "SHA-224 and SHA-256" 1015 tristate "SHA-224 and SHA-256"
981 select CRYPTO_HASH 1016 select CRYPTO_HASH
982 select CRYPTO_LIB_SHA256 1017 select CRYPTO_LIB_SHA256
983 help 1018 help
984 SHA-224 and SHA-256 secure hash algo 1019 SHA-224 and SHA-256 secure hash algorithms (FIPS 180, ISO/IEC 10118-3)
985 1020
986 This is required for IPsec AH (XFRM_ 1021 This is required for IPsec AH (XFRM_AH) and IPsec ESP (XFRM_ESP).
987 Used by the btrfs filesystem, Ceph, 1022 Used by the btrfs filesystem, Ceph, NFS, and SMB.
988 1023
989 config CRYPTO_SHA512 1024 config CRYPTO_SHA512
990 tristate "SHA-384 and SHA-512" 1025 tristate "SHA-384 and SHA-512"
991 select CRYPTO_HASH 1026 select CRYPTO_HASH
992 help 1027 help
993 SHA-384 and SHA-512 secure hash algo 1028 SHA-384 and SHA-512 secure hash algorithms (FIPS 180, ISO/IEC 10118-3)
994 1029
995 config CRYPTO_SHA3 1030 config CRYPTO_SHA3
996 tristate "SHA-3" 1031 tristate "SHA-3"
997 select CRYPTO_HASH 1032 select CRYPTO_HASH
998 help 1033 help
999 SHA-3 secure hash algorithms (FIPS 2 1034 SHA-3 secure hash algorithms (FIPS 202, ISO/IEC 10118-3)
1000 1035
1001 config CRYPTO_SM3 1036 config CRYPTO_SM3
1002 tristate 1037 tristate
1003 1038
1004 config CRYPTO_SM3_GENERIC 1039 config CRYPTO_SM3_GENERIC
1005 tristate "SM3 (ShangMi 3)" 1040 tristate "SM3 (ShangMi 3)"
1006 select CRYPTO_HASH 1041 select CRYPTO_HASH
1007 select CRYPTO_SM3 1042 select CRYPTO_SM3
1008 help 1043 help
1009 SM3 (ShangMi 3) secure hash functio 1044 SM3 (ShangMi 3) secure hash function (OSCCA GM/T 0004-2012, ISO/IEC 10118-3)
1010 1045
1011 This is part of the Chinese Commerc 1046 This is part of the Chinese Commercial Cryptography suite.
1012 1047
1013 References: 1048 References:
1014 http://www.oscca.gov.cn/UpFile/2010 1049 http://www.oscca.gov.cn/UpFile/20101222141857786.pdf
1015 https://datatracker.ietf.org/doc/ht 1050 https://datatracker.ietf.org/doc/html/draft-shen-sm3-hash
1016 1051
1017 config CRYPTO_STREEBOG 1052 config CRYPTO_STREEBOG
1018 tristate "Streebog" 1053 tristate "Streebog"
1019 select CRYPTO_HASH 1054 select CRYPTO_HASH
1020 help 1055 help
1021 Streebog Hash Function (GOST R 34.1 1056 Streebog Hash Function (GOST R 34.11-2012, RFC 6986, ISO/IEC 10118-3)
1022 1057
1023 This is one of the Russian cryptogr 1058 This is one of the Russian cryptographic standard algorithms (called
1024 GOST algorithms). This setting enab 1059 GOST algorithms). This setting enables two hash algorithms with
1025 256 and 512 bits output. 1060 256 and 512 bits output.
1026 1061
1027 References: 1062 References:
1028 https://tc26.ru/upload/iblock/fed/f 1063 https://tc26.ru/upload/iblock/fed/feddbb4d26b685903faa2ba11aea43f6.pdf
1029 https://tools.ietf.org/html/rfc6986 1064 https://tools.ietf.org/html/rfc6986
1030 1065
1031 config CRYPTO_VMAC 1066 config CRYPTO_VMAC
1032 tristate "VMAC" 1067 tristate "VMAC"
1033 select CRYPTO_HASH 1068 select CRYPTO_HASH
1034 select CRYPTO_MANAGER 1069 select CRYPTO_MANAGER
1035 help 1070 help
1036 VMAC is a message authentication al 1071 VMAC is a message authentication algorithm designed for
1037 very high speed on 64-bit architect 1072 very high speed on 64-bit architectures.
1038 1073
1039 See https://fastcrypto.org/vmac for 1074 See https://fastcrypto.org/vmac for further information.
1040 1075
1041 config CRYPTO_WP512 1076 config CRYPTO_WP512
1042 tristate "Whirlpool" 1077 tristate "Whirlpool"
1043 select CRYPTO_HASH 1078 select CRYPTO_HASH
1044 help 1079 help
1045 Whirlpool hash function (ISO/IEC 10 1080 Whirlpool hash function (ISO/IEC 10118-3)
1046 1081
1047 512, 384 and 256-bit hashes. 1082 512, 384 and 256-bit hashes.
1048 1083
1049 Whirlpool-512 is part of the NESSIE 1084 Whirlpool-512 is part of the NESSIE cryptographic primitives.
1050 1085
1051 See https://web.archive.org/web/201 1086 See https://web.archive.org/web/20171129084214/http://www.larc.usp.br/~pbarreto/WhirlpoolPage.html
1052 for further information. 1087 for further information.
1053 1088
1054 config CRYPTO_XCBC 1089 config CRYPTO_XCBC
1055 tristate "XCBC-MAC (Extended Cipher B 1090 tristate "XCBC-MAC (Extended Cipher Block Chaining MAC)"
1056 select CRYPTO_HASH 1091 select CRYPTO_HASH
1057 select CRYPTO_MANAGER 1092 select CRYPTO_MANAGER
1058 help 1093 help
1059 XCBC-MAC (Extended Cipher Block Cha 1094 XCBC-MAC (Extended Cipher Block Chaining Message Authentication
1060 Code) (RFC3566) 1095 Code) (RFC3566)
1061 1096
1062 config CRYPTO_XXHASH 1097 config CRYPTO_XXHASH
1063 tristate "xxHash" 1098 tristate "xxHash"
1064 select CRYPTO_HASH 1099 select CRYPTO_HASH
1065 select XXHASH 1100 select XXHASH
1066 help 1101 help
1067 xxHash non-cryptographic hash algor 1102 xxHash non-cryptographic hash algorithm
1068 1103
1069 Extremely fast, working at speeds c 1104 Extremely fast, working at speeds close to RAM limits.
1070 1105
1071 Used by the btrfs filesystem. 1106 Used by the btrfs filesystem.
1072 1107
1073 endmenu 1108 endmenu
1074 1109
1075 menu "CRCs (cyclic redundancy checks)" 1110 menu "CRCs (cyclic redundancy checks)"
1076 1111
1077 config CRYPTO_CRC32C 1112 config CRYPTO_CRC32C
1078 tristate "CRC32c" 1113 tristate "CRC32c"
1079 select CRYPTO_HASH 1114 select CRYPTO_HASH
1080 select CRC32 1115 select CRC32
1081 help 1116 help
1082 CRC32c CRC algorithm with the iSCSI 1117 CRC32c CRC algorithm with the iSCSI polynomial (RFC 3385 and RFC 3720)
1083 1118
1084 A 32-bit CRC (cyclic redundancy che 1119 A 32-bit CRC (cyclic redundancy check) with a polynomial defined
1085 by G. Castagnoli, S. Braeuer and M. 1120 by G. Castagnoli, S. Braeuer and M. Herrman in "Optimization of Cyclic
1086 Redundancy-Check Codes with 24 and 1121 Redundancy-Check Codes with 24 and 32 Parity Bits", IEEE Transactions
1087 on Communications, Vol. 41, No. 6, 1122 on Communications, Vol. 41, No. 6, June 1993, selected for use with
1088 iSCSI. 1123 iSCSI.
1089 1124
1090 Used by btrfs, ext4, jbd2, NVMeoF/T 1125 Used by btrfs, ext4, jbd2, NVMeoF/TCP, and iSCSI.
1091 1126
1092 config CRYPTO_CRC32 1127 config CRYPTO_CRC32
1093 tristate "CRC32" 1128 tristate "CRC32"
1094 select CRYPTO_HASH 1129 select CRYPTO_HASH
1095 select CRC32 1130 select CRC32
1096 help 1131 help
1097 CRC32 CRC algorithm (IEEE 802.3) 1132 CRC32 CRC algorithm (IEEE 802.3)
1098 1133
1099 Used by RoCEv2 and f2fs. 1134 Used by RoCEv2 and f2fs.
1100 1135
1101 config CRYPTO_CRCT10DIF 1136 config CRYPTO_CRCT10DIF
1102 tristate "CRCT10DIF" 1137 tristate "CRCT10DIF"
1103 select CRYPTO_HASH 1138 select CRYPTO_HASH
1104 help 1139 help
1105 CRC16 CRC algorithm used for the T1 1140 CRC16 CRC algorithm used for the T10 (SCSI) Data Integrity Field (DIF)
1106 1141
1107 CRC algorithm used by the SCSI Bloc 1142 CRC algorithm used by the SCSI Block Commands standard.
1108 1143
1109 config CRYPTO_CRC64_ROCKSOFT 1144 config CRYPTO_CRC64_ROCKSOFT
1110 tristate "CRC64 based on Rocksoft Mod 1145 tristate "CRC64 based on Rocksoft Model algorithm"
1111 depends on CRC64 1146 depends on CRC64
1112 select CRYPTO_HASH 1147 select CRYPTO_HASH
1113 help 1148 help
1114 CRC64 CRC algorithm based on the Ro 1149 CRC64 CRC algorithm based on the Rocksoft Model CRC Algorithm
1115 1150
1116 Used by the NVMe implementation of 1151 Used by the NVMe implementation of T10 DIF (BLK_DEV_INTEGRITY)
1117 1152
1118 See https://zlib.net/crc_v3.txt 1153 See https://zlib.net/crc_v3.txt
1119 1154
1120 endmenu 1155 endmenu
1121 1156
1122 menu "Compression" 1157 menu "Compression"
1123 1158
1124 config CRYPTO_DEFLATE 1159 config CRYPTO_DEFLATE
1125 tristate "Deflate" 1160 tristate "Deflate"
1126 select CRYPTO_ALGAPI 1161 select CRYPTO_ALGAPI
1127 select CRYPTO_ACOMP2 1162 select CRYPTO_ACOMP2
1128 select ZLIB_INFLATE 1163 select ZLIB_INFLATE
1129 select ZLIB_DEFLATE 1164 select ZLIB_DEFLATE
1130 help 1165 help
1131 Deflate compression algorithm (RFC1 1166 Deflate compression algorithm (RFC1951)
1132 1167
1133 Used by IPSec with the IPCOMP proto 1168 Used by IPSec with the IPCOMP protocol (RFC3173, RFC2394)
1134 1169
1135 config CRYPTO_LZO 1170 config CRYPTO_LZO
1136 tristate "LZO" 1171 tristate "LZO"
1137 select CRYPTO_ALGAPI 1172 select CRYPTO_ALGAPI
1138 select CRYPTO_ACOMP2 1173 select CRYPTO_ACOMP2
1139 select LZO_COMPRESS 1174 select LZO_COMPRESS
1140 select LZO_DECOMPRESS 1175 select LZO_DECOMPRESS
1141 help 1176 help
1142 LZO compression algorithm 1177 LZO compression algorithm
1143 1178
1144 See https://www.oberhumer.com/opens 1179 See https://www.oberhumer.com/opensource/lzo/ for further information.
1145 1180
1146 config CRYPTO_842 1181 config CRYPTO_842
1147 tristate "842" 1182 tristate "842"
1148 select CRYPTO_ALGAPI 1183 select CRYPTO_ALGAPI
1149 select CRYPTO_ACOMP2 1184 select CRYPTO_ACOMP2
1150 select 842_COMPRESS 1185 select 842_COMPRESS
1151 select 842_DECOMPRESS 1186 select 842_DECOMPRESS
1152 help 1187 help
1153 842 compression algorithm by IBM 1188 842 compression algorithm by IBM
1154 1189
1155 See https://github.com/plauth/lib84 1190 See https://github.com/plauth/lib842 for further information.
1156 1191
1157 config CRYPTO_LZ4 1192 config CRYPTO_LZ4
1158 tristate "LZ4" 1193 tristate "LZ4"
1159 select CRYPTO_ALGAPI 1194 select CRYPTO_ALGAPI
1160 select CRYPTO_ACOMP2 1195 select CRYPTO_ACOMP2
1161 select LZ4_COMPRESS 1196 select LZ4_COMPRESS
1162 select LZ4_DECOMPRESS 1197 select LZ4_DECOMPRESS
1163 help 1198 help
1164 LZ4 compression algorithm 1199 LZ4 compression algorithm
1165 1200
1166 See https://github.com/lz4/lz4 for 1201 See https://github.com/lz4/lz4 for further information.
1167 1202
1168 config CRYPTO_LZ4HC 1203 config CRYPTO_LZ4HC
1169 tristate "LZ4HC" 1204 tristate "LZ4HC"
1170 select CRYPTO_ALGAPI 1205 select CRYPTO_ALGAPI
1171 select CRYPTO_ACOMP2 1206 select CRYPTO_ACOMP2
1172 select LZ4HC_COMPRESS 1207 select LZ4HC_COMPRESS
1173 select LZ4_DECOMPRESS 1208 select LZ4_DECOMPRESS
1174 help 1209 help
1175 LZ4 high compression mode algorithm 1210 LZ4 high compression mode algorithm
1176 1211
1177 See https://github.com/lz4/lz4 for 1212 See https://github.com/lz4/lz4 for further information.
1178 1213
1179 config CRYPTO_ZSTD 1214 config CRYPTO_ZSTD
1180 tristate "Zstd" 1215 tristate "Zstd"
1181 select CRYPTO_ALGAPI 1216 select CRYPTO_ALGAPI
1182 select CRYPTO_ACOMP2 1217 select CRYPTO_ACOMP2
1183 select ZSTD_COMPRESS 1218 select ZSTD_COMPRESS
1184 select ZSTD_DECOMPRESS 1219 select ZSTD_DECOMPRESS
1185 help 1220 help
1186 zstd compression algorithm 1221 zstd compression algorithm
1187 1222
1188 See https://github.com/facebook/zst 1223 See https://github.com/facebook/zstd for further information.
1189 1224
1190 endmenu 1225 endmenu
1191 1226
1192 menu "Random number generation" 1227 menu "Random number generation"
1193 1228
1194 config CRYPTO_ANSI_CPRNG 1229 config CRYPTO_ANSI_CPRNG
1195 tristate "ANSI PRNG (Pseudo Random Nu 1230 tristate "ANSI PRNG (Pseudo Random Number Generator)"
1196 select CRYPTO_AES 1231 select CRYPTO_AES
1197 select CRYPTO_RNG 1232 select CRYPTO_RNG
1198 help 1233 help
1199 Pseudo RNG (random number generator 1234 Pseudo RNG (random number generator) (ANSI X9.31 Appendix A.2.4)
1200 1235
1201 This uses the AES cipher algorithm. 1236 This uses the AES cipher algorithm.
1202 1237
1203 Note that this option must be enabl 1238 Note that this option must be enabled if CRYPTO_FIPS is selected
1204 1239
1205 menuconfig CRYPTO_DRBG_MENU 1240 menuconfig CRYPTO_DRBG_MENU
1206 tristate "NIST SP800-90A DRBG (Determ 1241 tristate "NIST SP800-90A DRBG (Deterministic Random Bit Generator)"
1207 help 1242 help
1208 DRBG (Deterministic Random Bit Gene 1243 DRBG (Deterministic Random Bit Generator) (NIST SP800-90A)
1209 1244
1210 In the following submenu, one or mo 1245 In the following submenu, one or more of the DRBG types must be selected.
1211 1246
1212 if CRYPTO_DRBG_MENU 1247 if CRYPTO_DRBG_MENU
1213 1248
1214 config CRYPTO_DRBG_HMAC 1249 config CRYPTO_DRBG_HMAC
1215 bool 1250 bool
1216 default y 1251 default y
1217 select CRYPTO_HMAC 1252 select CRYPTO_HMAC
1218 select CRYPTO_SHA512 1253 select CRYPTO_SHA512
1219 1254
1220 config CRYPTO_DRBG_HASH 1255 config CRYPTO_DRBG_HASH
1221 bool "Hash_DRBG" 1256 bool "Hash_DRBG"
1222 select CRYPTO_SHA256 1257 select CRYPTO_SHA256
1223 help 1258 help
1224 Hash_DRBG variant as defined in NIS 1259 Hash_DRBG variant as defined in NIST SP800-90A.
1225 1260
1226 This uses the SHA-1, SHA-256, SHA-3 1261 This uses the SHA-1, SHA-256, SHA-384, or SHA-512 hash algorithms.
1227 1262
1228 config CRYPTO_DRBG_CTR 1263 config CRYPTO_DRBG_CTR
1229 bool "CTR_DRBG" 1264 bool "CTR_DRBG"
1230 select CRYPTO_AES 1265 select CRYPTO_AES
1231 select CRYPTO_CTR 1266 select CRYPTO_CTR
1232 help 1267 help
1233 CTR_DRBG variant as defined in NIST 1268 CTR_DRBG variant as defined in NIST SP800-90A.
1234 1269
1235 This uses the AES cipher algorithm 1270 This uses the AES cipher algorithm with the counter block mode.
1236 1271
1237 config CRYPTO_DRBG 1272 config CRYPTO_DRBG
1238 tristate 1273 tristate
1239 default CRYPTO_DRBG_MENU 1274 default CRYPTO_DRBG_MENU
1240 select CRYPTO_RNG 1275 select CRYPTO_RNG
1241 select CRYPTO_JITTERENTROPY 1276 select CRYPTO_JITTERENTROPY
1242 1277
1243 endif # if CRYPTO_DRBG_MENU 1278 endif # if CRYPTO_DRBG_MENU
1244 1279
1245 config CRYPTO_JITTERENTROPY 1280 config CRYPTO_JITTERENTROPY
1246 tristate "CPU Jitter Non-Deterministi 1281 tristate "CPU Jitter Non-Deterministic RNG (Random Number Generator)"
1247 select CRYPTO_RNG 1282 select CRYPTO_RNG
1248 select CRYPTO_SHA3 <<
1249 help 1283 help
1250 CPU Jitter RNG (Random Number Gener 1284 CPU Jitter RNG (Random Number Generator) from the Jitterentropy library
1251 1285
1252 A non-physical non-deterministic (" 1286 A non-physical non-deterministic ("true") RNG (e.g., an entropy source
1253 compliant with NIST SP800-90B) inte 1287 compliant with NIST SP800-90B) intended to provide a seed to a
1254 deterministic RNG (e.g., per NIST S 1288 deterministic RNG (e.g., per NIST SP800-90C).
1255 This RNG does not perform any crypt 1289 This RNG does not perform any cryptographic whitening of the generated
1256 random numbers. 1290 random numbers.
1257 1291
1258 See https://www.chronox.de/jent/ 1292 See https://www.chronox.de/jent/
1259 1293
1260 if CRYPTO_JITTERENTROPY <<
1261 if CRYPTO_FIPS && EXPERT <<
1262 <<
1263 choice <<
1264 prompt "CPU Jitter RNG Memory Size" <<
1265 default CRYPTO_JITTERENTROPY_MEMSIZE_ <<
1266 help <<
1267 The Jitter RNG measures the executi <<
1268 Multiple consecutive memory accesse <<
1269 size fits into a cache (e.g. L1), o <<
1270 to that cache is measured. The clos <<
1271 the less variations are measured an <<
1272 obtained. Thus, if the memory size <<
1273 obtained entropy is less than if th <<
1274 L1 + L2, which in turn is less if t <<
1275 L1 + L2 + L3. Thus, by selecting a <<
1276 the entropy rate produced by the Ji <<
1277 <<
1278 config CRYPTO_JITTERENTROPY_MEMSIZE_2 <<
1279 bool "2048 Bytes (default)" <<
1280 <<
1281 config CRYPTO_JITTERENTROPY_MEMSIZE_1 <<
1282 bool "128 kBytes" <<
1283 <<
1284 config CRYPTO_JITTERENTROPY_MEMSIZE_1 <<
1285 bool "1024 kBytes" <<
1286 <<
1287 config CRYPTO_JITTERENTROPY_MEMSIZE_8 <<
1288 bool "8192 kBytes" <<
1289 endchoice <<
1290 <<
1291 config CRYPTO_JITTERENTROPY_MEMORY_BLOCKS <<
1292 int <<
1293 default 64 if CRYPTO_JITTERENTROPY_ME <<
1294 default 512 if CRYPTO_JITTERENTROPY_M <<
1295 default 1024 if CRYPTO_JITTERENTROPY_ <<
1296 default 4096 if CRYPTO_JITTERENTROPY_ <<
1297 <<
1298 config CRYPTO_JITTERENTROPY_MEMORY_BLOCKSIZE <<
1299 int <<
1300 default 32 if CRYPTO_JITTERENTROPY_ME <<
1301 default 256 if CRYPTO_JITTERENTROPY_M <<
1302 default 1024 if CRYPTO_JITTERENTROPY_ <<
1303 default 2048 if CRYPTO_JITTERENTROPY_ <<
1304 <<
1305 config CRYPTO_JITTERENTROPY_OSR <<
1306 int "CPU Jitter RNG Oversampling Rate <<
1307 range 1 15 <<
1308 default 3 <<
1309 help <<
1310 The Jitter RNG allows the specifica <<
1311 The Jitter RNG operation requires a <<
1312 measurements to produce one output <<
1313 OSR value is multiplied with the am <<
1314 generate one output block. Thus, th <<
1315 by the OSR factor. The oversampling <<
1316 on hardware whose timers deliver li <<
1317 the timer is coarse) by setting the <<
1318 trade-off, however, is that the Jit <<
1319 to generate random numbers. <<
1320 <<
1321 config CRYPTO_JITTERENTROPY_TESTINTERFACE <<
1322 bool "CPU Jitter RNG Test Interface" <<
1323 help <<
1324 The test interface allows a privile <<
1325 the raw unconditioned high resoluti <<
1326 is collected by the Jitter RNG for <<
1327 this data is used at the same time <<
1328 the Jitter RNG operates in an insec <<
1329 recording is enabled. This interfac <<
1330 intended for testing purposes and i <<
1331 production systems. <<
1332 <<
1333 The raw noise data can be obtained <<
1334 debugfs file. Using the option <<
1335 jitterentropy_testing.boot_raw_hire <<
1336 the first 1000 entropy events since <<
1337 <<
1338 If unsure, select N. <<
1339 <<
1340 endif # if CRYPTO_FIPS && EXPERT <<
1341 <<
1342 if !(CRYPTO_FIPS && EXPERT) <<
1343 <<
1344 config CRYPTO_JITTERENTROPY_MEMORY_BLOCKS <<
1345 int <<
1346 default 64 <<
1347 <<
1348 config CRYPTO_JITTERENTROPY_MEMORY_BLOCKSIZE <<
1349 int <<
1350 default 32 <<
1351 <<
1352 config CRYPTO_JITTERENTROPY_OSR <<
1353 int <<
1354 default 1 <<
1355 <<
1356 config CRYPTO_JITTERENTROPY_TESTINTERFACE <<
1357 bool <<
1358 <<
1359 endif # if !(CRYPTO_FIPS && EXPERT) <<
1360 endif # if CRYPTO_JITTERENTROPY <<
1361 <<
1362 config CRYPTO_KDF800108_CTR 1294 config CRYPTO_KDF800108_CTR
1363 tristate 1295 tristate
1364 select CRYPTO_HMAC 1296 select CRYPTO_HMAC
1365 select CRYPTO_SHA256 1297 select CRYPTO_SHA256
1366 1298
1367 endmenu 1299 endmenu
1368 menu "Userspace interface" 1300 menu "Userspace interface"
1369 1301
1370 config CRYPTO_USER_API 1302 config CRYPTO_USER_API
1371 tristate 1303 tristate
1372 1304
1373 config CRYPTO_USER_API_HASH 1305 config CRYPTO_USER_API_HASH
1374 tristate "Hash algorithms" 1306 tristate "Hash algorithms"
1375 depends on NET 1307 depends on NET
1376 select CRYPTO_HASH 1308 select CRYPTO_HASH
1377 select CRYPTO_USER_API 1309 select CRYPTO_USER_API
1378 help 1310 help
1379 Enable the userspace interface for 1311 Enable the userspace interface for hash algorithms.
1380 1312
1381 See Documentation/crypto/userspace- 1313 See Documentation/crypto/userspace-if.rst and
1382 https://www.chronox.de/libkcapi/htm 1314 https://www.chronox.de/libkcapi/html/index.html
1383 1315
1384 config CRYPTO_USER_API_SKCIPHER 1316 config CRYPTO_USER_API_SKCIPHER
1385 tristate "Symmetric key cipher algori 1317 tristate "Symmetric key cipher algorithms"
1386 depends on NET 1318 depends on NET
1387 select CRYPTO_SKCIPHER 1319 select CRYPTO_SKCIPHER
1388 select CRYPTO_USER_API 1320 select CRYPTO_USER_API
1389 help 1321 help
1390 Enable the userspace interface for 1322 Enable the userspace interface for symmetric key cipher algorithms.
1391 1323
1392 See Documentation/crypto/userspace- 1324 See Documentation/crypto/userspace-if.rst and
1393 https://www.chronox.de/libkcapi/htm 1325 https://www.chronox.de/libkcapi/html/index.html
1394 1326
1395 config CRYPTO_USER_API_RNG 1327 config CRYPTO_USER_API_RNG
1396 tristate "RNG (random number generato 1328 tristate "RNG (random number generator) algorithms"
1397 depends on NET 1329 depends on NET
1398 select CRYPTO_RNG 1330 select CRYPTO_RNG
1399 select CRYPTO_USER_API 1331 select CRYPTO_USER_API
1400 help 1332 help
1401 Enable the userspace interface for 1333 Enable the userspace interface for RNG (random number generator)
1402 algorithms. 1334 algorithms.
1403 1335
1404 See Documentation/crypto/userspace- 1336 See Documentation/crypto/userspace-if.rst and
1405 https://www.chronox.de/libkcapi/htm 1337 https://www.chronox.de/libkcapi/html/index.html
1406 1338
1407 config CRYPTO_USER_API_RNG_CAVP 1339 config CRYPTO_USER_API_RNG_CAVP
1408 bool "Enable CAVP testing of DRBG" 1340 bool "Enable CAVP testing of DRBG"
1409 depends on CRYPTO_USER_API_RNG && CRY 1341 depends on CRYPTO_USER_API_RNG && CRYPTO_DRBG
1410 help 1342 help
1411 Enable extra APIs in the userspace 1343 Enable extra APIs in the userspace interface for NIST CAVP
1412 (Cryptographic Algorithm Validation 1344 (Cryptographic Algorithm Validation Program) testing:
1413 - resetting DRBG entropy 1345 - resetting DRBG entropy
1414 - providing Additional Data 1346 - providing Additional Data
1415 1347
1416 This should only be enabled for CAV 1348 This should only be enabled for CAVP testing. You should say
1417 no unless you know what this is. 1349 no unless you know what this is.
1418 1350
1419 config CRYPTO_USER_API_AEAD 1351 config CRYPTO_USER_API_AEAD
1420 tristate "AEAD cipher algorithms" 1352 tristate "AEAD cipher algorithms"
1421 depends on NET 1353 depends on NET
1422 select CRYPTO_AEAD 1354 select CRYPTO_AEAD
1423 select CRYPTO_SKCIPHER 1355 select CRYPTO_SKCIPHER
1424 select CRYPTO_NULL 1356 select CRYPTO_NULL
1425 select CRYPTO_USER_API 1357 select CRYPTO_USER_API
1426 help 1358 help
1427 Enable the userspace interface for 1359 Enable the userspace interface for AEAD cipher algorithms.
1428 1360
1429 See Documentation/crypto/userspace- 1361 See Documentation/crypto/userspace-if.rst and
1430 https://www.chronox.de/libkcapi/htm 1362 https://www.chronox.de/libkcapi/html/index.html
1431 1363
1432 config CRYPTO_USER_API_ENABLE_OBSOLETE 1364 config CRYPTO_USER_API_ENABLE_OBSOLETE
1433 bool "Obsolete cryptographic algorith 1365 bool "Obsolete cryptographic algorithms"
1434 depends on CRYPTO_USER_API 1366 depends on CRYPTO_USER_API
1435 default y 1367 default y
1436 help 1368 help
1437 Allow obsolete cryptographic algori 1369 Allow obsolete cryptographic algorithms to be selected that have
1438 already been phased out from intern 1370 already been phased out from internal use by the kernel, and are
1439 only useful for userspace clients t 1371 only useful for userspace clients that still rely on them.
1440 1372
>> 1373 config CRYPTO_STATS
>> 1374 bool "Crypto usage statistics"
>> 1375 depends on CRYPTO_USER
>> 1376 help
>> 1377 Enable the gathering of crypto stats.
>> 1378
>> 1379 This collects data sizes, numbers of requests, and numbers
>> 1380 of errors processed by:
>> 1381 - AEAD ciphers (encrypt, decrypt)
>> 1382 - asymmetric key ciphers (encrypt, decrypt, verify, sign)
>> 1383 - symmetric key ciphers (encrypt, decrypt)
>> 1384 - compression algorithms (compress, decompress)
>> 1385 - hash algorithms (hash)
>> 1386 - key-agreement protocol primitives (setsecret, generate
>> 1387 public key, compute shared secret)
>> 1388 - RNG (generate, seed)
>> 1389
1441 endmenu 1390 endmenu
1442 1391
1443 config CRYPTO_HASH_INFO 1392 config CRYPTO_HASH_INFO
1444 bool 1393 bool
1445 1394
1446 if !KMSAN # avoid false positives from assemb 1395 if !KMSAN # avoid false positives from assembly
1447 if ARM 1396 if ARM
1448 source "arch/arm/crypto/Kconfig" 1397 source "arch/arm/crypto/Kconfig"
1449 endif 1398 endif
1450 if ARM64 1399 if ARM64
1451 source "arch/arm64/crypto/Kconfig" 1400 source "arch/arm64/crypto/Kconfig"
1452 endif 1401 endif
1453 if LOONGARCH <<
1454 source "arch/loongarch/crypto/Kconfig" <<
1455 endif <<
1456 if MIPS 1402 if MIPS
1457 source "arch/mips/crypto/Kconfig" 1403 source "arch/mips/crypto/Kconfig"
1458 endif 1404 endif
1459 if PPC 1405 if PPC
1460 source "arch/powerpc/crypto/Kconfig" 1406 source "arch/powerpc/crypto/Kconfig"
1461 endif <<
1462 if RISCV <<
1463 source "arch/riscv/crypto/Kconfig" <<
1464 endif 1407 endif
1465 if S390 1408 if S390
1466 source "arch/s390/crypto/Kconfig" 1409 source "arch/s390/crypto/Kconfig"
1467 endif 1410 endif
1468 if SPARC 1411 if SPARC
1469 source "arch/sparc/crypto/Kconfig" 1412 source "arch/sparc/crypto/Kconfig"
1470 endif 1413 endif
1471 if X86 1414 if X86
1472 source "arch/x86/crypto/Kconfig" 1415 source "arch/x86/crypto/Kconfig"
1473 endif 1416 endif
1474 endif 1417 endif
1475 1418
1476 source "drivers/crypto/Kconfig" 1419 source "drivers/crypto/Kconfig"
1477 source "crypto/asymmetric_keys/Kconfig" 1420 source "crypto/asymmetric_keys/Kconfig"
1478 source "certs/Kconfig" 1421 source "certs/Kconfig"
1479 1422
1480 endif # if CRYPTO 1423 endif # if CRYPTO
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