diff options
| -rw-r--r-- | cipher/gost28147.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/cipher/gost28147.c b/cipher/gost28147.c index 1720f45f..ae9e705a 100644 --- a/cipher/gost28147.c +++ b/cipher/gost28147.c @@ -175,6 +175,44 @@ gost_decrypt_block (void *c, byte *outbuf, const byte *inbuf) 4*sizeof(void*) /* gost_val call */; } +static gpg_err_code_t +gost_set_sbox (GOST28147_context *ctx, const char *oid) +{ + int i; + + for (i = 0; gost_oid_map[i].oid; i++) + { + if (!strcmp(gost_oid_map[i].oid, oid)) + { + ctx->sbox = gost_oid_map[i].sbox; + return 0; + } + } + return GPG_ERR_VALUE_NOT_FOUND; +} + +static gpg_err_code_t +gost_set_extra_info (void *c, int what, const void *buffer, size_t buflen) +{ + GOST28147_context *ctx = c; + gpg_err_code_t ec = 0; + + (void)buffer; + (void)buflen; + + switch (what) + { + case GCRYCTL_SET_SBOX: + ec = gost_set_sbox (ctx, buffer); + break; + + default: + ec = GPG_ERR_INV_OP; + break; + } + return ec; +} + static gcry_cipher_oid_spec_t oids_gost28147[] = { /* { "1.2.643.2.2.31.0", GCRY_CIPHER_MODE_CNTGOST }, */ @@ -193,4 +231,5 @@ gcry_cipher_spec_t _gcry_cipher_spec_gost28147 = gost_setkey, gost_encrypt_block, gost_decrypt_block, + NULL, NULL, NULL, gost_set_extra_info, }; |