EVP_CIPHER_iv_length
ivec->length = EVP_CIPHER_iv_length(crypto->c);
assert(EVP_CIPHER_iv_length(crypto->c) == (int)ivec->length);
if (ivec && EVP_CIPHER_iv_length(crypto->c) < (int)ivec->length)
iv.length = EVP_CIPHER_iv_length(c);
if (ssize < 0 || ssize < PKCS5_SALT_LEN || ssize < EVP_CIPHER_iv_length(cipher)) {
|| !TEST_int_gt((iv_size = EVP_CIPHER_iv_length(cipher)), 0)
iv_len = EVP_CIPHER_iv_length(cipher);
iv_len = EVP_CIPHER_iv_length(cipher);
iv_len = EVP_CIPHER_iv_length(cipher);