Allow key creation using TC26 (2012) parameters

[openssl-gost/engine.git] / gost_pmeth.c

diff --git a/gost_pmeth.c b/gost_pmeth.c
index 5c7352b338dd51d396f2ddf84ac01917db271913..41bda944cd6176db841973e263565959461de882 100644 (file)
--- a/gost_pmeth.c
+++ b/gost_pmeth.c
@@ -151,6 +151,10 @@ static int pkey_gost_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
             return 0;
         }
         memcpy(pctx->shared_ukm, p2, (int)p1);
+        pctx->shared_ukm_size = p1;
+        return 1;
+    case EVP_PKEY_CTRL_CIPHER:
+        pctx->cipher_nid = p1;
         return 1;
     case EVP_PKEY_CTRL_PEER_KEY:
         if (p1 == 0 || p1 == 1) /* call from EVP_PKEY_derive_set_peer */
@@ -204,6 +208,25 @@ static int pkey_gost_ec_ctrl_str_256(EVP_PKEY_CTX *ctx,
             default:
                 return 0;
             }
+       } else if ((strlen(value) == 3)
+           && (toupper((unsigned char)value[0]) == 'T')
+           && (toupper((unsigned char)value[1]) == 'C')) {
+            switch (toupper((unsigned char)value[2])) {
+            case 'A':
+                param_nid = NID_id_tc26_gost_3410_2012_256_paramSetA;
+                break;
+            case 'B':
+                param_nid = NID_id_tc26_gost_3410_2012_256_paramSetB;
+                break;
+            case 'C':
+                param_nid = NID_id_tc26_gost_3410_2012_256_paramSetC;
+                break;
+            case 'D':
+                param_nid = NID_id_tc26_gost_3410_2012_256_paramSetD;
+                break;
+            default:
+                return 0;
+            }
         } else {
             R3410_ec_params *p = R3410_2001_paramset;
             param_nid = OBJ_txt2nid(value);
@@ -248,6 +271,10 @@ static int pkey_gost_ec_ctrl_str_512(EVP_PKEY_CTX *ctx,
             param_nid = NID_id_tc26_gost_3410_2012_512_paramSetB;
             break;
 
+        case 'C':
+            param_nid = NID_id_tc26_gost_3410_2012_512_paramSetC;
+            break;
+
         default:
             return 0;
         }
@@ -316,6 +343,7 @@ static int pkey_gost2012_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
     switch (data->sign_param_nid) {
     case NID_id_tc26_gost_3410_2012_512_paramSetA:
     case NID_id_tc26_gost_3410_2012_512_paramSetB:
+    case NID_id_tc26_gost_3410_2012_512_paramSetC:
         result =
             (EVP_PKEY_assign(pkey, NID_id_GostR3410_2012_512, ec)) ? 1 : 0;
         break;
@@ -326,6 +354,10 @@ static int pkey_gost2012_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
     case NID_id_GostR3410_2001_CryptoPro_XchA_ParamSet:
     case NID_id_GostR3410_2001_CryptoPro_XchB_ParamSet:
     case NID_id_GostR3410_2001_TestParamSet:
+    case NID_id_tc26_gost_3410_2012_256_paramSetA:
+    case NID_id_tc26_gost_3410_2012_256_paramSetB:
+    case NID_id_tc26_gost_3410_2012_256_paramSetC:
+    case NID_id_tc26_gost_3410_2012_256_paramSetD:
         result =
             (EVP_PKEY_assign(pkey, NID_id_GostR3410_2012_256, ec)) ? 1 : 0;
         break;
@@ -365,17 +397,17 @@ static int pkey_gost2012cp_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
 /* ----------- sign callbacks --------------------------------------*/
 /*
  * Packs signature according to Cryptopro rules
- * and frees up DSA_SIG structure
+ * and frees up ECDSA_SIG structure
  */
-int pack_sign_cp(DSA_SIG *s, int order, unsigned char *sig, size_t *siglen)
+int pack_sign_cp(ECDSA_SIG *s, int order, unsigned char *sig, size_t *siglen)
 {
     const BIGNUM *sig_r = NULL, *sig_s = NULL;
-    DSA_SIG_get0(s, &sig_r, &sig_s);
+    ECDSA_SIG_get0(s, &sig_r, &sig_s);
     *siglen = 2 * order;
     memset(sig, 0, *siglen);
     store_bignum(sig_s, sig, order);
     store_bignum(sig_r, sig + order, order);
-    DSA_SIG_free(s);
+    ECDSA_SIG_free(s);
     return 1;
 }
 
@@ -383,7 +415,7 @@ static int pkey_gost_ec_cp_sign(EVP_PKEY_CTX *ctx, unsigned char *sig,
                                 size_t *siglen, const unsigned char *tbs,
                                 size_t tbs_len)
 {
-    DSA_SIG *unpacked_sig = NULL;
+    ECDSA_SIG *unpacked_sig = NULL;
     EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
     int order = 0;
 
@@ -417,19 +449,19 @@ static int pkey_gost_ec_cp_sign(EVP_PKEY_CTX *ctx, unsigned char *sig,
 
 /* ------------------- verify callbacks ---------------------------*/
 /* Unpack signature according to cryptopro rules  */
-DSA_SIG *unpack_cp_signature(const unsigned char *sigbuf, size_t siglen)
+ECDSA_SIG *unpack_cp_signature(const unsigned char *sigbuf, size_t siglen)
 {
-    DSA_SIG *sig;
+    ECDSA_SIG *sig;
     BIGNUM *r = NULL, *s = NULL;
 
-    sig = DSA_SIG_new();
+    sig = ECDSA_SIG_new();
     if (sig == NULL) {
         GOSTerr(GOST_F_UNPACK_CP_SIGNATURE, ERR_R_MALLOC_FAILURE);
         return NULL;
     }
     s = BN_bin2bn(sigbuf, siglen / 2, NULL);
     r = BN_bin2bn(sigbuf + siglen / 2, siglen / 2, NULL);
-               DSA_SIG_set0(sig, r, s);
+               ECDSA_SIG_set0(sig, r, s);
     return sig;
 }
 
@@ -439,19 +471,19 @@ static int pkey_gost_ec_cp_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig,
 {
     int ok = 0;
     EVP_PKEY *pub_key = EVP_PKEY_CTX_get0_pkey(ctx);
-    DSA_SIG *s = (sig) ? unpack_cp_signature(sig, siglen) : NULL;
+    ECDSA_SIG *s = (sig) ? unpack_cp_signature(sig, siglen) : NULL;
     if (!s)
         return 0;
 #ifdef DEBUG_SIGN
     fprintf(stderr, "R=");
-    BN_print_fp(stderr, s->r);
+    BN_print_fp(stderr, ECDSA_SIG_get0_r(s));
     fprintf(stderr, "\nS=");
-    BN_print_fp(stderr, s->s);
+    BN_print_fp(stderr, ECDSA_SIG_get0_s(s));
     fprintf(stderr, "\n");
 #endif
     if (pub_key)
         ok = gost_ec_verify(tbs, tbs_len, s, EVP_PKEY_get0(pub_key));
-    DSA_SIG_free(s);
+    ECDSA_SIG_free(s);
     return ok;
 }
 
@@ -517,12 +549,12 @@ static int pkey_gost_omac_init(EVP_PKEY_CTX *ctx, size_t mac_size)
 
 static int pkey_gost_magma_mac_init(EVP_PKEY_CTX *ctx)
 {
-       return pkey_gost_omac_init(ctx, 4);
+       return pkey_gost_omac_init(ctx, 8);
 }
 
 static int pkey_gost_grasshopper_mac_init(EVP_PKEY_CTX *ctx)
 {
-       return pkey_gost_omac_init(ctx, 8);
+       return pkey_gost_omac_init(ctx, 16);
 }
 
 static void pkey_gost_mac_cleanup(EVP_PKEY_CTX *ctx)
@@ -614,7 +646,6 @@ static int pkey_gost_mac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
         }
     case EVP_PKEY_CTRL_MAC_LEN:
         {
-                               /*TODO*/
             if (p1 < 1 || p1 > 8) {
 
                 GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL, GOST_R_INVALID_MAC_SIZE);
@@ -694,7 +725,9 @@ static int pkey_gost_omac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2, si
     case EVP_PKEY_CTRL_MD:
         {
             int nid = EVP_MD_type((const EVP_MD *)p2);
-            if (nid != NID_magma_mac && nid != NID_grasshopper_mac) {
+            if (nid != NID_magma_mac && nid != NID_grasshopper_mac
+                && nid != NID_id_tc26_cipher_gostr3412_2015_kuznyechik_ctracpkm_omac /* FIXME beldmit */
+                && nid != NID_id_tc26_cipher_gostr3412_2015_magma_ctracpkm_omac) {
                 GOSTerr(GOST_F_PKEY_GOST_OMAC_CTRL,
                         GOST_R_INVALID_DIGEST_TYPE);
                 return 0;
@@ -746,8 +779,7 @@ static int pkey_gost_omac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2, si
         }
     case EVP_PKEY_CTRL_MAC_LEN:
         {
-                               /*TODO*/
-            if (p1 < 1 || p1 > 8) {
+            if (p1 < 1 || p1 > max_size) {
 
                 GOSTerr(GOST_F_PKEY_GOST_OMAC_CTRL, GOST_R_INVALID_MAC_SIZE);
                 return 0;
@@ -952,8 +984,8 @@ int register_pmeth_gost(int id, EVP_PKEY_METHOD **pmeth, int flags)
 
         EVP_PKEY_meth_set_encrypt(*pmeth,
                                   pkey_gost_encrypt_init,
-                                  pkey_GOST_ECcp_encrypt);
-        EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST_ECcp_decrypt);
+                                  pkey_gost_encrypt);
+        EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_gost_decrypt);
         EVP_PKEY_meth_set_derive(*pmeth,
                                  pkey_gost_derive_init, pkey_gost_ec_derive);
         EVP_PKEY_meth_set_paramgen(*pmeth, pkey_gost_paramgen_init,
@@ -969,8 +1001,8 @@ int register_pmeth_gost(int id, EVP_PKEY_METHOD **pmeth, int flags)
 
         EVP_PKEY_meth_set_encrypt(*pmeth,
                                   pkey_gost_encrypt_init,
-                                  pkey_GOST_ECcp_encrypt);
-        EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST_ECcp_decrypt);
+                                  pkey_gost_encrypt);
+        EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_gost_decrypt);
         EVP_PKEY_meth_set_derive(*pmeth,
                                  pkey_gost_derive_init, pkey_gost_ec_derive);
         EVP_PKEY_meth_set_paramgen(*pmeth,
@@ -987,8 +1019,8 @@ int register_pmeth_gost(int id, EVP_PKEY_METHOD **pmeth, int flags)
 
         EVP_PKEY_meth_set_encrypt(*pmeth,
                                   pkey_gost_encrypt_init,
-                                  pkey_GOST_ECcp_encrypt);
-        EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_GOST_ECcp_decrypt);
+                                  pkey_gost_encrypt);
+        EVP_PKEY_meth_set_decrypt(*pmeth, NULL, pkey_gost_decrypt);
         EVP_PKEY_meth_set_derive(*pmeth,
                                  pkey_gost_derive_init, pkey_gost_ec_derive);
         EVP_PKEY_meth_set_paramgen(*pmeth,
@@ -1026,6 +1058,7 @@ int register_pmeth_gost(int id, EVP_PKEY_METHOD **pmeth, int flags)
         EVP_PKEY_meth_set_copy(*pmeth, pkey_gost_mac_copy);
         return 1;
     case NID_grasshopper_mac:
+    case NID_id_tc26_cipher_gostr3412_2015_kuznyechik_ctracpkm_omac: /* FIXME beldmit */
         EVP_PKEY_meth_set_ctrl(*pmeth, pkey_gost_grasshopper_mac_ctrl,
                                pkey_gost_grasshopper_mac_ctrl_str);
         EVP_PKEY_meth_set_signctx(*pmeth, pkey_gost_grasshopper_mac_signctx_init,