/* ECB method: encrypt (not decrypt!) the IV, then XOR with plaintext */
if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen, iv, ivlen)
<= 0)
goto cipher_decrypt_err;
/* ECB method: encrypt (not decrypt!) the IV, then XOR with plaintext */
if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen, iv, ivlen)
<= 0)
goto cipher_decrypt_err;