refactor(crypto,legacy): extend parameters of init_rfc6979 by curve

crypto/ecdsa.c

@@ -687,7 +687,7 @@ int ecdsa_sign_digest(const ecdsa_curve *curve, const uint8_t *priv_key,
 
 #if USE_RFC6979
   rfc6979_state rng = {0};
-  init_rfc6979(priv_key, digest, &rng);
+  init_rfc6979(priv_key, digest, curve, &rng);
 #endif
 
   bn_read_be(digest, &z);

crypto/rfc6979.c

@@ -27,7 +27,7 @@
 #include "memzero.h"
 
 void init_rfc6979(const uint8_t *priv_key, const uint8_t *hash,
-                  rfc6979_state *state) {
+                  const ecdsa_curve *curve, rfc6979_state *state) {
   hmac_drbg_init(state, priv_key, 32, hash, 32);
 }
 

crypto/rfc6979.h

@@ -33,7 +33,7 @@
 typedef HMAC_DRBG_CTX rfc6979_state;
 
 void init_rfc6979(const uint8_t *priv_key, const uint8_t *hash,
-                  rfc6979_state *rng);
+                  const ecdsa_curve *curve, rfc6979_state *rng);
 void generate_rfc6979(uint8_t rnd[32], rfc6979_state *rng);
 void generate_k_rfc6979(bignum256 *k, rfc6979_state *rng);
 

crypto/tests/test_check.c

@@ -3757,7 +3757,7 @@ END_TEST
 #define test_deterministic(KEY, MSG, K)           \
   do {                                            \
     sha256_Raw((uint8_t *)MSG, strlen(MSG), buf); \
-    init_rfc6979(fromhex(KEY), buf, &rng);        \
+    init_rfc6979(fromhex(KEY), buf, NULL, &rng);  \
     generate_k_rfc6979(&k, &rng);                 \
     bn_write_be(&k, buf);                         \
     ck_assert_mem_eq(buf, fromhex(K), 32);        \
@@ -6790,7 +6790,7 @@ START_TEST(test_ed25519_cosi) {
           "26c76712d89d906e6672dafa614c42e5cb1caac8c6568e4d2493087db51f0d36"),
       fromhex(
           "26659c1cf7321c178c07437150639ff0c5b7679c7ea195253ed9abda2e081a37"),
-      &rng);
+      NULL, &rng);
 
   for (int N = 1; N < 11; N++) {
     ed25519_public_key pk;

legacy/firmware/fsm_msg_crypto.h

@@ -259,7 +259,7 @@ void fsm_msgCosiCommit(const CosiCommit *msg) {
   uint8_t nonce[32];
   sha256_Raw(msg->data.bytes, msg->data.size, nonce);
   rfc6979_state rng;
-  init_rfc6979(node->private_key, nonce, &rng);
+  init_rfc6979(node->private_key, nonce, NULL, &rng);
   generate_rfc6979(nonce, &rng);
 
   resp->has_commitment = true;
@@ -302,7 +302,7 @@ void fsm_msgCosiSign(const CosiSign *msg) {
   uint8_t nonce[32];
   sha256_Raw(msg->data.bytes, msg->data.size, nonce);
   rfc6979_state rng;
-  init_rfc6979(node->private_key, nonce, &rng);
+  init_rfc6979(node->private_key, nonce, NULL, &rng);
   generate_rfc6979(nonce, &rng);
 
   resp->signature.size = 32;