X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fecies.cpp;h=39fe2d7d1b57071a329e0c741d2f994fa4dae8ba;hb=5f3f7465db4444e49dd4a896f88c090b40d0a303;hp=f2a86ddd5f5e2bf4d8ecc07391bb8233c8aeea84;hpb=6db849791e675fa14d1222f86011ec6c08c84183;p=novacoin.git diff --git a/src/ecies.cpp b/src/ecies.cpp index f2a86dd..39fe2d7 100644 --- a/src/ecies.cpp +++ b/src/ecies.cpp @@ -272,16 +272,16 @@ static int store_mac_tag(const ies_ctx_t *ctx, const unsigned char *envelope_key cryptogram_t * ecies_encrypt(const ies_ctx_t *ctx, const unsigned char *data, size_t length, char *error) { - const size_t block_length = EVP_CIPHER_block_size(ctx->cipher); - const size_t mac_length = EVP_MD_size(ctx->md); - cryptogram_t *cryptogram = NULL; - unsigned char *envelope_key = NULL; - if (!ctx || !data || !length) { SET_ERROR("Invalid arguments"); return NULL; } + const size_t block_length = EVP_CIPHER_block_size(ctx->cipher); + const size_t mac_length = EVP_MD_size(ctx->md); + cryptogram_t *cryptogram = NULL; + unsigned char *envelope_key = NULL; + if (block_length == 0 || block_length > EVP_MAX_BLOCK_LENGTH) { SET_ERROR("Derived block size is incorrect"); return NULL;