diff options
Diffstat (limited to 'openssl/engines/ccgost/gost89.h')
| -rw-r--r-- | openssl/engines/ccgost/gost89.h | 104 |
1 files changed, 55 insertions, 49 deletions
diff --git a/openssl/engines/ccgost/gost89.h b/openssl/engines/ccgost/gost89.h index 8da2407b0..e5b877f44 100644 --- a/openssl/engines/ccgost/gost89.h +++ b/openssl/engines/ccgost/gost89.h @@ -6,78 +6,84 @@ * Declarations for GOST 28147-89 encryption algorithm * * No OpenSSL libraries required to compile and use * * this code * - **********************************************************************/ + **********************************************************************/ #ifndef GOST89_H -#define GOST89_H +# define GOST89_H /* Typedef for unsigned 32-bit integer */ -#if __LONG_MAX__ > 2147483647L -typedef unsigned int u4; -#else -typedef unsigned long u4; -#endif +# if __LONG_MAX__ > 2147483647L +typedef unsigned int u4; +# else +typedef unsigned long u4; +# endif /* Typedef for unsigned 8-bit integer */ -typedef unsigned char byte; +typedef unsigned char byte; /* Internal representation of GOST substitution blocks */ typedef struct { - byte k8[16]; - byte k7[16]; - byte k6[16]; - byte k5[16]; - byte k4[16]; - byte k3[16]; - byte k2[16]; - byte k1[16]; -} gost_subst_block; - + byte k8[16]; + byte k7[16]; + byte k6[16]; + byte k5[16]; + byte k4[16]; + byte k3[16]; + byte k2[16]; + byte k1[16]; +} gost_subst_block; /* Cipher context includes key and preprocessed substitution block */ -typedef struct { - u4 k[8]; - /* Constant s-boxes -- set up in gost_init(). */ - u4 k87[256],k65[256],k43[256],k21[256]; -} gost_ctx; -/* Note: encrypt and decrypt expect full blocks--padding blocks is - caller's responsibility. All bulk encryption is done in - ECB mode by these calls. Other modes may be added easily - enough. */ +typedef struct { + u4 k[8]; + /* Constant s-boxes -- set up in gost_init(). */ + u4 k87[256], k65[256], k43[256], k21[256]; +} gost_ctx; +/* + * Note: encrypt and decrypt expect full blocks--padding blocks is caller's + * responsibility. All bulk encryption is done in ECB mode by these calls. + * Other modes may be added easily enough. + */ /* Encrypt several full blocks in ECB mode */ -void gost_enc(gost_ctx *ctx, const byte *clear,byte *cipher, int blocks); +void gost_enc(gost_ctx * ctx, const byte * clear, byte * cipher, int blocks); /* Decrypt several full blocks in ECB mode */ -void gost_dec(gost_ctx *ctx, const byte *cipher,byte *clear, int blocks); +void gost_dec(gost_ctx * ctx, const byte * cipher, byte * clear, int blocks); /* Encrypts several full blocks in CFB mode using 8byte IV */ -void gost_enc_cfb(gost_ctx *ctx,const byte *iv,const byte *clear,byte *cipher,int blocks); +void gost_enc_cfb(gost_ctx * ctx, const byte * iv, const byte * clear, + byte * cipher, int blocks); /* Decrypts several full blocks in CFB mode using 8byte IV */ -void gost_dec_cfb(gost_ctx *ctx,const byte *iv,const byte *cipher,byte *clear,int blocks); +void gost_dec_cfb(gost_ctx * ctx, const byte * iv, const byte * cipher, + byte * clear, int blocks); /* Encrypt one block */ -void gostcrypt(gost_ctx *c, const byte *in, byte *out); +void gostcrypt(gost_ctx * c, const byte * in, byte * out); /* Decrypt one block */ -void gostdecrypt(gost_ctx *c, const byte *in,byte *out); +void gostdecrypt(gost_ctx * c, const byte * in, byte * out); /* Set key into context */ -void gost_key(gost_ctx *ctx, const byte *key); +void gost_key(gost_ctx * ctx, const byte * key); /* Get key from context */ -void gost_get_key(gost_ctx *ctx, byte *key); +void gost_get_key(gost_ctx * ctx, byte * key); /* Set S-blocks into context */ -void gost_init(gost_ctx *ctx, const gost_subst_block *subst_block); +void gost_init(gost_ctx * ctx, const gost_subst_block * subst_block); /* Clean up context */ -void gost_destroy(gost_ctx *ctx); +void gost_destroy(gost_ctx * ctx); /* Intermediate function used for calculate hash */ -void gost_enc_with_key(gost_ctx *,byte *key,byte *inblock,byte *outblock); +void gost_enc_with_key(gost_ctx *, byte * key, byte * inblock, + byte * outblock); /* Compute MAC of given length in bits from data */ -int gost_mac(gost_ctx *ctx,int hmac_len,const unsigned char *data, - unsigned int data_len,unsigned char *hmac) ; -/* Compute MAC of given length in bits from data, using non-zero 8-byte - * IV (non-standard, for use in CryptoPro key transport only */ -int gost_mac_iv(gost_ctx *ctx,int hmac_len,const unsigned char *iv,const unsigned char *data, - unsigned int data_len,unsigned char *hmac) ; +int gost_mac(gost_ctx * ctx, int hmac_len, const unsigned char *data, + unsigned int data_len, unsigned char *hmac); +/* + * Compute MAC of given length in bits from data, using non-zero 8-byte IV + * (non-standard, for use in CryptoPro key transport only + */ +int gost_mac_iv(gost_ctx * ctx, int hmac_len, const unsigned char *iv, + const unsigned char *data, unsigned int data_len, + unsigned char *hmac); /* Perform one step of MAC calculation like gostcrypt */ -void mac_block(gost_ctx *c,byte *buffer,const byte *block); +void mac_block(gost_ctx * c, byte * buffer, const byte * block); /* Extracts MAC value from mac state buffer */ -void get_mac(byte *buffer,int nbits,byte *out); +void get_mac(byte * buffer, int nbits, byte * out); /* Implements cryptopro key meshing algorithm. Expect IV to be 8-byte size*/ -void cryptopro_key_meshing(gost_ctx *ctx, unsigned char *iv); +void cryptopro_key_meshing(gost_ctx * ctx, unsigned char *iv); /* Parameter sets specified in RFC 4357 */ extern gost_subst_block GostR3411_94_TestParamSet; extern gost_subst_block GostR3411_94_CryptoProParamSet; @@ -86,7 +92,7 @@ extern gost_subst_block Gost28147_CryptoProParamSetA; extern gost_subst_block Gost28147_CryptoProParamSetB; extern gost_subst_block Gost28147_CryptoProParamSetC; extern gost_subst_block Gost28147_CryptoProParamSetD; -extern const byte CryptoProKeyMeshingKey[]; -typedef unsigned int word32; +extern const byte CryptoProKeyMeshingKey[]; +typedef unsigned int word32; #endif |