EVP_DecryptInit
int EVP_DecryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
LCRYPTO_ALIAS(EVP_DecryptInit);
LCRYPTO_USED(EVP_DecryptInit);
if (!EVP_DecryptInit(ctx, cipher, NULL, NULL)) {
if (!EVP_DecryptInit(ctx, NULL, at->key, at->iv)) {
if (!EVP_DecryptInit(ctx, cipher, NULL, NULL)) {
if (!EVP_DecryptInit(ctx, NULL, bt->key, bt->iv)) {
if (!EVP_DecryptInit(ctx, cipher, NULL, NULL)) {
if (!EVP_DecryptInit(ctx, NULL, rt->key, rt->iv)) {
if (!EVP_DecryptInit(ctx, cipher, rt->key, NULL)) {