// 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;
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;
+ 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);
-
-typedef int (* grasshopper_do_cipher_func)(EVP_CIPHER_CTX* ctx, unsigned char* out, const unsigned char* in,
- size_t inl);
-
-typedef void (* grasshopper_destroy_cipher_func)(gost_grasshopper_cipher_ctx* c);
+static void gost_grasshopper_cipher_key(gost_grasshopper_cipher_ctx* c, const uint8_t* k);
-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);
-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);
-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_cbc(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_ofb(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_cfb(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_ctr(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_init_ctracpkm(EVP_CIPHER_CTX* ctx,
+ const unsigned char* key, const unsigned char* iv, int enc);
-int gost_grasshopper_cipher_init(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_do(EVP_CIPHER_CTX* ctx, unsigned char* out,
- const unsigned char* in, size_t inl);
+static int gost_grasshopper_cipher_init(EVP_CIPHER_CTX* ctx, const unsigned char* key,
+ const unsigned char* iv, int enc);
-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(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_ecb(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_cbc(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_ofb(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_cfb(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_ctr(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_do_ctracpkm(EVP_CIPHER_CTX* ctx, unsigned char* out,
+ const unsigned char* in, size_t inl);
-int gost_grasshopper_get_asn1_parameters(EVP_CIPHER_CTX* ctx, ASN1_TYPE* params);
+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_ctl(EVP_CIPHER_CTX* ctx, int type, int arg, void* ptr);
+static int gost_grasshopper_cipher_cleanup(EVP_CIPHER_CTX* ctx);
-EVP_CIPHER* cipher_gost_grasshopper_create(int cipher_type, int block_size);
+static int gost_grasshopper_set_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_get_asn1_parameters(EVP_CIPHER_CTX* ctx, ASN1_TYPE* params);
-const EVP_CIPHER* cipher_gost_grasshopper(uint8_t mode, uint8_t num);
+static int gost_grasshopper_cipher_ctl(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)
}