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Linux/certs/Kconfig

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Diff markup

Differences between /certs/Kconfig (Version linux-6.11.5) and /certs/Kconfig (Version linux-2.4.37.11)


  1 # SPDX-License-Identifier: GPL-2.0                
  2 menu "Certificates for signature checking"        
  3                                                   
  4 config MODULE_SIG_KEY                             
  5         string "File name or PKCS#11 URI of mo    
  6         default "certs/signing_key.pem"           
  7         depends on MODULE_SIG || (IMA_APPRAISE    
  8         help                                      
  9          Provide the file name of a private ke    
 10          or a PKCS#11 URI according to RFC7512    
 11          the URI should identify, both the cer    
 12          private key.                             
 13                                                   
 14          If this option is unchanged from its     
 15          then the kernel will automatically ge    
 16          certificate as described in Documenta    
 17                                                   
 18 choice                                            
 19         prompt "Type of module signing key to     
 20         depends on MODULE_SIG || (IMA_APPRAISE    
 21         help                                      
 22          The type of module signing key type t    
 23          does not apply if a #PKCS11 URI is us    
 24                                                   
 25 config MODULE_SIG_KEY_TYPE_RSA                    
 26         bool "RSA"                                
 27         help                                      
 28          Use an RSA key for module signing.       
 29                                                   
 30 config MODULE_SIG_KEY_TYPE_ECDSA                  
 31         bool "ECDSA"                              
 32         select CRYPTO_ECDSA                       
 33         depends on !(MODULE_SIG_SHA256 || MODU    
 34         help                                      
 35          Use an elliptic curve key (NIST P384)    
 36          a strong hash of same or higher bit l    
 37          sha512 for hashing modules.              
 38                                                   
 39          Note: Remove all ECDSA signing keys,     
 40          when falling back to building Linux 5    
 41                                                   
 42 endchoice                                         
 43                                                   
 44 config SYSTEM_TRUSTED_KEYRING                     
 45         bool "Provide system-wide ring of trus    
 46         depends on KEYS                           
 47         depends on ASYMMETRIC_KEY_TYPE            
 48         depends on X509_CERTIFICATE_PARSER = y    
 49         help                                      
 50           Provide a system keyring to which tr    
 51           the keyring are considered to be tru    
 52           by the kernel from compiled-in data     
 53           userspace may only add extra keys if    
 54           keys already in the keyring.            
 55                                                   
 56           Keys in this keyring are used by mod    
 57                                                   
 58 config SYSTEM_TRUSTED_KEYS                        
 59         string "Additional X.509 keys for defa    
 60         depends on SYSTEM_TRUSTED_KEYRING         
 61         help                                      
 62           If set, this option should be the fi    
 63           containing trusted X.509 certificate    
 64           system keyring. Any certificate used    
 65           also trusted.                           
 66                                                   
 67           NOTE: If you previously provided key    
 68           form of DER-encoded *.x509 files in     
 69           those are no longer used. You will n    
 70                                                   
 71 config SYSTEM_EXTRA_CERTIFICATE                   
 72         bool "Reserve area for inserting a cer    
 73         depends on SYSTEM_TRUSTED_KEYRING         
 74         help                                      
 75           If set, space for an extra certifica    
 76           image. This allows introducing a tru    
 77           system keyring without recompiling t    
 78                                                   
 79 config SYSTEM_EXTRA_CERTIFICATE_SIZE              
 80         int "Number of bytes to reserve for th    
 81         depends on SYSTEM_EXTRA_CERTIFICATE       
 82         default 4096                              
 83         help                                      
 84           This is the number of bytes reserved    
 85           certificate to be inserted.             
 86                                                   
 87 config SECONDARY_TRUSTED_KEYRING                  
 88         bool "Provide a keyring to which extra    
 89         depends on SYSTEM_TRUSTED_KEYRING         
 90         help                                      
 91           If set, provide a keyring to which e    
 92           those keys are not blacklisted and a    
 93           into the kernel, machine keyring (if    
 94           secondary trusted keyring.              
 95                                                   
 96 config SECONDARY_TRUSTED_KEYRING_SIGNED_BY_BUI    
 97         bool "Only allow additional certs sign    
 98         depends on SECONDARY_TRUSTED_KEYRING      
 99         help                                      
100           If set, only certificates signed by     
101           keyring may be loaded onto the secon    
102                                                   
103           Note: The machine keyring, if config    
104           secondary keyring.  When enabling th    
105           to also configure INTEGRITY_CA_MACHI    
106           linking code signing keys with imput    
107           trusted keyring.                        
108                                                   
109 config SYSTEM_BLACKLIST_KEYRING                   
110         bool "Provide system-wide ring of blac    
111         depends on KEYS                           
112         help                                      
113           Provide a system keyring to which bl    
114           Keys in the keyring are considered e    
115           keyring are used by the module signa    
116           of modules signed with a blacklisted    
117                                                   
118 config SYSTEM_BLACKLIST_HASH_LIST                 
119         string "Hashes to be preloaded into th    
120         depends on SYSTEM_BLACKLIST_KEYRING       
121         help                                      
122           If set, this option should be the fi    
123           form "<hash>", "<hash>", ... .  This    
124           wrapper to incorporate the list into    
125           string starting with a prefix ("tbs"    
126           finally an even number of hexadecima    
127           Certificate hashes can be generated     
128           tools/certs/print-cert-tbs-hash.sh .    
129                                                   
130 config SYSTEM_REVOCATION_LIST                     
131         bool "Provide system-wide ring of revo    
132         depends on SYSTEM_BLACKLIST_KEYRING       
133         depends on PKCS7_MESSAGE_PARSER=y         
134         help                                      
135           If set, this allows revocation certi    
136           blacklist keyring and implements a h    
137           be checked to see if it matches such    
138                                                   
139 config SYSTEM_REVOCATION_KEYS                     
140         string "X.509 certificates to be prelo    
141         depends on SYSTEM_REVOCATION_LIST         
142         help                                      
143           If set, this option should be the fi    
144           containing X.509 certificates to be     
145           keyring.                                
146                                                   
147 config SYSTEM_BLACKLIST_AUTH_UPDATE               
148         bool "Allow root to add signed blackli    
149         depends on SYSTEM_BLACKLIST_KEYRING       
150         depends on SYSTEM_DATA_VERIFICATION       
151         help                                      
152           If set, provide the ability to load     
153           they are signed and vouched by a cer    
154           keyring.  The PKCS#7 signature of th    
155           payload.  Blacklist keys cannot be r    
156                                                   
157 endmenu                                           
                                                      

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