X-Git-Url: http://www.wagner.pp.ru/gitweb/?a=blobdiff_plain;f=gost_grasshopper_cipher.h;h=a3a6470897de1a5c7fc93dfa4a4d4e9acac6f6f5;hb=HEAD;hp=7f775a24b8ff2f7576c4d1317f79e70566d581e0;hpb=a72a02c4dd5778eea83db6e9e17d89f0d2b278dd;p=openssl-gost%2Fengine.git diff --git a/gost_grasshopper_cipher.h b/gost_grasshopper_cipher.h index 7f775a2..a3a6470 100644 --- a/gost_grasshopper_cipher.h +++ b/gost_grasshopper_cipher.h @@ -6,18 +6,22 @@ #ifndef GOST_GRASSHOPPER_CIPHER_H #define GOST_GRASSHOPPER_CIPHER_H +#define SN_kuznyechik_mgm "kuznyechik-mgm" + #if defined(__cplusplus) extern "C" { #endif #include "gost_grasshopper_defines.h" +#include "gost_lcl.h" #include // not thread safe // because of buffers typedef struct { uint8_t type; + grasshopper_key_t master_key; grasshopper_key_t key; grasshopper_round_keys_t encrypt_round_keys; grasshopper_round_keys_t decrypt_round_keys; @@ -26,80 +30,85 @@ typedef struct { typedef struct { gost_grasshopper_cipher_ctx c; - grasshopper_w128_t buffer1; - uint32_t g; - uint32_t go; -} gost_grasshopper_cipher_ctx_ofb; - -typedef struct { - gost_grasshopper_cipher_ctx c; - grasshopper_w128_t iv_buffer; grasshopper_w128_t partial_buffer; - uint64_t counter; + unsigned int section_size; /* After how much bytes mesh the key, + if 0 never mesh and work like plain ctr. */ + unsigned char kdf_seed[8]; + unsigned char tag[16]; + EVP_MD_CTX *omac_ctx; } gost_grasshopper_cipher_ctx_ctr; -typedef int (* grasshopper_init_cipher_func)(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, - int enc); +static void gost_grasshopper_cipher_key(gost_grasshopper_cipher_ctx* c, const uint8_t* k); + +static void gost_grasshopper_cipher_destroy(gost_grasshopper_cipher_ctx* c); + +static int gost_grasshopper_cipher_init_ecb(EVP_CIPHER_CTX* ctx, + const unsigned char* key, const unsigned char* iv, int enc); -typedef int (* grasshopper_do_cipher_func)(EVP_CIPHER_CTX* ctx, unsigned char* out, const unsigned char* in, - size_t inl); +static int gost_grasshopper_cipher_init_cbc(EVP_CIPHER_CTX* ctx, + const unsigned char* key, const unsigned char* iv, int enc); -typedef void (* grasshopper_destroy_cipher_func)(gost_grasshopper_cipher_ctx* c); +static int gost_grasshopper_cipher_init_ofb(EVP_CIPHER_CTX* ctx, + const unsigned char* key, const unsigned char* iv, int enc); -void gost_grasshopper_cipher_key(gost_grasshopper_cipher_ctx* c, const uint8_t* k); +static int gost_grasshopper_cipher_init_cfb(EVP_CIPHER_CTX* ctx, + const unsigned char* key, const unsigned char* iv, int enc); -void gost_grasshopper_cipher_destroy(gost_grasshopper_cipher_ctx* c); +static int gost_grasshopper_cipher_init_ctr(EVP_CIPHER_CTX* ctx, + const unsigned char* key, const unsigned char* iv, int enc); -int gost_grasshopper_cipher_init_ecb(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, int enc); +static int gost_grasshopper_cipher_init_ctracpkm(EVP_CIPHER_CTX* ctx, + const unsigned char* key, const unsigned char* iv, int enc); -int gost_grasshopper_cipher_init_cbc(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, int enc); +static int gost_grasshopper_cipher_init_ctracpkm_omac(EVP_CIPHER_CTX* ctx, + const unsigned char* key, const unsigned char* iv, int enc); -int gost_grasshopper_cipher_init_ofb(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, int enc); +static int gost_grasshopper_cipher_init_mgm(EVP_CIPHER_CTX* ctx, + const unsigned char* key, const unsigned char* iv, int enc); -int gost_grasshopper_cipher_init_cfb(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, int enc); +static int gost_grasshopper_cipher_init(EVP_CIPHER_CTX* ctx, const unsigned char* key, + const unsigned char* iv, int enc); -int gost_grasshopper_cipher_init_ctr(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, int enc); +static int gost_grasshopper_cipher_do(EVP_CIPHER_CTX* ctx, unsigned char* out, + const unsigned char* in, size_t inl); -int gost_grasshopper_cipher_init(EVP_CIPHER_CTX* ctx, const unsigned char* key, - const unsigned char* iv, int enc); +static int gost_grasshopper_cipher_do_ecb(EVP_CIPHER_CTX* ctx, unsigned char* out, + const unsigned char* in, size_t inl); -int gost_grasshopper_cipher_do(EVP_CIPHER_CTX* ctx, unsigned char* out, - const unsigned char* in, size_t inl); +static int gost_grasshopper_cipher_do_cbc(EVP_CIPHER_CTX* ctx, unsigned char* out, + const unsigned char* in, size_t inl); -int gost_grasshopper_cipher_do_ecb(EVP_CIPHER_CTX* ctx, unsigned char* out, - const unsigned char* in, size_t inl); +static int gost_grasshopper_cipher_do_ofb(EVP_CIPHER_CTX* ctx, unsigned char* out, + const unsigned char* in, size_t inl); -int gost_grasshopper_cipher_do_cbc(EVP_CIPHER_CTX* ctx, unsigned char* out, - const unsigned char* in, size_t inl); +static int gost_grasshopper_cipher_do_cfb(EVP_CIPHER_CTX* ctx, unsigned char* out, + const unsigned char* in, size_t inl); -int gost_grasshopper_cipher_do_ofb(EVP_CIPHER_CTX* ctx, unsigned char* out, - const unsigned char* in, size_t inl); +static int gost_grasshopper_cipher_do_ctr(EVP_CIPHER_CTX* ctx, unsigned char* out, + const unsigned char* in, size_t inl); -int gost_grasshopper_cipher_do_cfb(EVP_CIPHER_CTX* ctx, unsigned char* out, - const unsigned char* in, size_t inl); +static int gost_grasshopper_cipher_do_ctracpkm(EVP_CIPHER_CTX* ctx, unsigned char* out, + const unsigned char* in, size_t inl); -int gost_grasshopper_cipher_do_ctr(EVP_CIPHER_CTX* ctx, unsigned char* out, - const unsigned char* in, size_t inl); +static int gost_grasshopper_cipher_do_ctracpkm_omac(EVP_CIPHER_CTX* ctx, unsigned char* out, + const unsigned char* in, size_t inl); -int gost_grasshopper_cipher_cleanup(EVP_CIPHER_CTX* ctx); +static int gost_grasshopper_cipher_do_mgm(EVP_CIPHER_CTX* ctx, unsigned char* out, + const unsigned char* in, size_t inl); -int gost_grasshopper_set_asn1_parameters(EVP_CIPHER_CTX* ctx, ASN1_TYPE* params); +static int gost_grasshopper_cipher_cleanup(EVP_CIPHER_CTX* ctx); -int gost_grasshopper_get_asn1_parameters(EVP_CIPHER_CTX* ctx, ASN1_TYPE* params); +static int gost_grasshopper_mgm_cleanup(EVP_CIPHER_CTX *c); -int gost_grasshopper_cipher_ctl(EVP_CIPHER_CTX* ctx, int type, int arg, void* ptr); +static int gost_grasshopper_set_asn1_parameters(EVP_CIPHER_CTX* ctx, ASN1_TYPE* params); -EVP_CIPHER* cipher_gost_grasshopper_create(int cipher_type, int block_size); +static int gost_grasshopper_get_asn1_parameters(EVP_CIPHER_CTX* ctx, ASN1_TYPE* params); -const int cipher_gost_grasshopper_setup(EVP_CIPHER* cipher, uint8_t mode, int iv_size, bool padding); +static int gost_grasshopper_cipher_ctl(EVP_CIPHER_CTX* ctx, int type, int arg, void* ptr); -const EVP_CIPHER* cipher_gost_grasshopper(uint8_t mode, uint8_t num); +static int gost_grasshopper_mgm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr); -extern const EVP_CIPHER* cipher_gost_grasshopper_ecb(); -extern const EVP_CIPHER* cipher_gost_grasshopper_cbc(); -extern const EVP_CIPHER* cipher_gost_grasshopper_ofb(); -extern const EVP_CIPHER* cipher_gost_grasshopper_cfb(); -extern const EVP_CIPHER* cipher_gost_grasshopper_ctr(); +const EVP_CIPHER* cipher_gost_grasshopper_ctracpkm(); #if defined(__cplusplus) }