1 /* SPDX-License-Identifier: Apache-2.0 OR BSD-
2 //
3 // This file is dual-licensed, meaning that yo
4 // choice of either of the following two licen
5 //
6 // Copyright 2023 The OpenSSL Project Authors.
7 //
8 // Licensed under the Apache License 2.0 (the
9 // a copy in the file LICENSE in the source di
10 // https://www.openssl.org/source/license.html
11 //
12 // or
13 //
14 // Copyright (c) 2023, Christoph Müllner <chri
15 // Copyright (c) 2023, Phoebe Chen <phoebe.chen
16 // Copyright 2024 Google LLC
17 // All rights reserved.
18 //
19 // Redistribution and use in source and binary
20 // modification, are permitted provided that t
21 // are met:
22 // 1. Redistributions of source code must reta
23 // notice, this list of conditions and the
24 // 2. Redistributions in binary form must repr
25 // notice, this list of conditions and the
26 // documentation and/or other materials pro
27 //
28 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
29 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTI
30 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCH
31 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
32 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIR
33 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGE
34 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 // THEORY OF LIABILITY, WHETHER IN CONTRACT, S
37 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
38 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE PO
39
40 // The generated code of this file depends on
41 // - RV64I
42 // - RISC-V Vector ('V') with VLEN >= 128
43 // - RISC-V Vector SHA-2 Secure Hash extension
44 // - RISC-V Vector Cryptography Bit-manipulati
45
46 #include <linux/cfi_types.h>
47
48 .text
49 .option arch, +zvknhb, +zvkb
50
51 #define STATEP a0
52 #define DATA a1
53 #define NUM_BLOCKS a2
54
55 #define STATEP_C a3
56 #define K a4
57
58 #define MASK v0
59 #define INDICES v1
60 #define W0 v10 // LMUL=2
61 #define W1 v12 // LMUL=2
62 #define W2 v14 // LMUL=2
63 #define W3 v16 // LMUL=2
64 #define VTMP v20 // LMUL=2
65 #define FEBA v22 // LMUL=2
66 #define HGDC v24 // LMUL=2
67 #define PREV_FEBA v26 // LMUL=2
68 #define PREV_HGDC v28 // LMUL=2
69
70 // Do 4 rounds of SHA-512. w0 contains the cu
71 //
72 // If not all the message schedule words have
73 // computes 4 more message schedule words. w1
74 // message schedule words; this macro computes
75 // to w0. This means that the next (w0, w1, w
76 // w0), so the caller must cycle through the r
77 .macro sha512_4rounds last, w0, w1, w2, w3
78 vle64.v VTMP, (K)
79 addi K, K, 32
80 vadd.vv VTMP, VTMP, \w0
81 vsha2cl.vv HGDC, FEBA, VTMP
82 vsha2ch.vv FEBA, HGDC, VTMP
83 .if !\last
84 vmerge.vvm VTMP, \w2, \w1, MASK
85 vsha2ms.vv \w0, VTMP, \w3
86 .endif
87 .endm
88
89 .macro sha512_16rounds last
90 sha512_4rounds \last, W0, W1, W2, W3
91 sha512_4rounds \last, W1, W2, W3, W0
92 sha512_4rounds \last, W2, W3, W0, W1
93 sha512_4rounds \last, W3, W0, W1, W2
94 .endm
95
96 // void sha512_transform_zvknhb_zvkb(u64 state
97 // int num_b
98 SYM_TYPED_FUNC_START(sha512_transform_zvknhb_z
99
100 // Setup mask for the vmerge to replac
101 // message scheduling. There are 4 wo
102 vsetivli zero, 1, e8, m1, ta, m
103 vmv.v.i MASK, 0x01
104
105 // Load the state. The state is store
106 // need {f,e,b,a},{h,g,d,c}. The dst
107 // is e8mf4. We use index-load with t
108 // loaded using the 32-bit little endi
109 li t0, 0x00082028
110 vsetivli zero, 1, e32, m1, ta,
111 vmv.v.x INDICES, t0
112 addi STATEP_C, STATEP, 16
113 vsetivli zero, 4, e64, m2, ta,
114 vluxei8.v FEBA, (STATEP), INDICE
115 vluxei8.v HGDC, (STATEP_C), INDI
116
117 .Lnext_block:
118 la K, K512
119 addi NUM_BLOCKS, NUM_BLOCKS
120
121 // Save the previous state, as it's ne
122 vmv.v.v PREV_FEBA, FEBA
123 vmv.v.v PREV_HGDC, HGDC
124
125 // Load the next 1024-bit message bloc
126 vle64.v W0, (DATA)
127 vrev8.v W0, W0
128 addi DATA, DATA, 32
129 vle64.v W1, (DATA)
130 vrev8.v W1, W1
131 addi DATA, DATA, 32
132 vle64.v W2, (DATA)
133 vrev8.v W2, W2
134 addi DATA, DATA, 32
135 vle64.v W3, (DATA)
136 vrev8.v W3, W3
137 addi DATA, DATA, 32
138
139 // Do the 80 rounds of SHA-512.
140 sha512_16rounds 0
141 sha512_16rounds 0
142 sha512_16rounds 0
143 sha512_16rounds 0
144 sha512_16rounds 1
145
146 // Add the previous state.
147 vadd.vv FEBA, FEBA, PREV_FEBA
148 vadd.vv HGDC, HGDC, PREV_HGDC
149
150 // Repeat if more blocks remain.
151 bnez NUM_BLOCKS, .Lnext_blo
152
153 // Store the new state and return.
154 vsuxei8.v FEBA, (STATEP), INDICE
155 vsuxei8.v HGDC, (STATEP_C), INDI
156 ret
157 SYM_FUNC_END(sha512_transform_zvknhb_zvkb)
158
159 .section ".rodata"
160 .p2align 3
161 .type K512, @object
162 K512:
163 .dword 0x428a2f98d728ae22, 0x
164 .dword 0xb5c0fbcfec4d3b2f, 0x
165 .dword 0x3956c25bf348b538, 0x
166 .dword 0x923f82a4af194f9b, 0x
167 .dword 0xd807aa98a3030242, 0x
168 .dword 0x243185be4ee4b28c, 0x
169 .dword 0x72be5d74f27b896f, 0x
170 .dword 0x9bdc06a725c71235, 0x
171 .dword 0xe49b69c19ef14ad2, 0x
172 .dword 0x0fc19dc68b8cd5b5, 0x
173 .dword 0x2de92c6f592b0275, 0x
174 .dword 0x5cb0a9dcbd41fbd4, 0x
175 .dword 0x983e5152ee66dfab, 0x
176 .dword 0xb00327c898fb213f, 0x
177 .dword 0xc6e00bf33da88fc2, 0x
178 .dword 0x06ca6351e003826f, 0x
179 .dword 0x27b70a8546d22ffc, 0x
180 .dword 0x4d2c6dfc5ac42aed, 0x
181 .dword 0x650a73548baf63de, 0x
182 .dword 0x81c2c92e47edaee6, 0x
183 .dword 0xa2bfe8a14cf10364, 0x
184 .dword 0xc24b8b70d0f89791, 0x
185 .dword 0xd192e819d6ef5218, 0x
186 .dword 0xf40e35855771202a, 0x
187 .dword 0x19a4c116b8d2d0c8, 0x
188 .dword 0x2748774cdf8eeb99, 0x
189 .dword 0x391c0cb3c5c95a63, 0x
190 .dword 0x5b9cca4f7763e373, 0x
191 .dword 0x748f82ee5defb2fc, 0x
192 .dword 0x84c87814a1f0ab72, 0x
193 .dword 0x90befffa23631e28, 0x
194 .dword 0xbef9a3f7b2c67915, 0x
195 .dword 0xca273eceea26619c, 0x
196 .dword 0xeada7dd6cde0eb1e, 0x
197 .dword 0x06f067aa72176fba, 0x
198 .dword 0x113f9804bef90dae, 0x
199 .dword 0x28db77f523047d84, 0x
200 .dword 0x3c9ebe0a15c9bebc, 0x
201 .dword 0x4cc5d4becb3e42b6, 0x
202 .dword 0x5fcb6fab3ad6faec, 0x
203 .size K512, . - K512
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