-static const EVP_CIPHER cryptodev_aes_192_cbc = {
- NID_aes_192_cbc,
- 16, 24, 16,
- EVP_CIPH_CBC_MODE,
- cryptodev_init_key,
- cryptodev_cipher,
- cryptodev_cleanup,
- sizeof(struct dev_crypto_state),
- EVP_CIPHER_set_asn1_iv,
- EVP_CIPHER_get_asn1_iv,
- NULL
-};
+static EVP_CIPHER *aes_192_cbc_cipher = NULL;
+static const EVP_CIPHER *cryptodev_aes_192_cbc(void)
+{
+ if (aes_192_cbc_cipher == NULL) {
+ EVP_CIPHER *cipher;
+
+ if ((cipher = EVP_CIPHER_meth_new(NID_aes_192_cbc, 16, 24)) == NULL
+ || !EVP_CIPHER_meth_set_iv_length(cipher, 16)
+ || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE)
+ || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
+ || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
+ || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
+ || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
+ || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
+ || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
+ EVP_CIPHER_meth_free(cipher);
+ cipher = NULL;
+ }
+ aes_192_cbc_cipher = cipher;
+ }
+ return aes_192_cbc_cipher;
+}