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Fix unchecked ge448_scalarmult_base return value.

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jordan
2024-02-21 08:40:38 -06:00
parent fd2b80ec22
commit 5aa06c26ff
1 changed files with 5 additions and 3 deletions
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8
wolfcrypt/src/ed448.c
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@ -368,13 +368,15 @@ int wc_ed448_sign_msg_ex(const byte* in, word32 inLen, byte* out,
/* step 2: computing R = rB where rB is the scalar multiplication of
r and B */
ge448_scalarmult_base(&R,nonce);
ge448_to_bytes(out,&R);
ret = ge448_scalarmult_base(&R,nonce);
/* step 3: hash R + public key + message getting H(R,A,M) then
creating S = (r + H(R,A,M)a) mod l */
if (ret == 0) {
ge448_to_bytes(out,&R);
ret = ed448_hash_update(key, sha, ed448Ctx, ED448CTX_SIZE);
ret = ed448_hash_update(key, sha, ed448Ctx, ED448CTX_SIZE);
}
if (ret == 0) {
ret = ed448_hash_update(key, sha, &type, sizeof(type));
}