+ int nid;
+ ASN1_OBJECT *otmp;
+ nid = EVP_CIPHER_nid(ctx);
+
+ switch (nid) {
+
+ case NID_rc2_cbc:
+ case NID_rc2_64_cbc:
+ case NID_rc2_40_cbc:
+
+ return NID_rc2_cbc;
+
+ case NID_rc4:
+ case NID_rc4_40:
+
+ return NID_rc4;
+
+ case NID_aes_128_cfb128:
+ case NID_aes_128_cfb8:
+ case NID_aes_128_cfb1:
+
+ return NID_aes_128_cfb128;
+
+ case NID_aes_192_cfb128:
+ case NID_aes_192_cfb8:
+ case NID_aes_192_cfb1:
+
+ return NID_aes_192_cfb128;
+
+ case NID_aes_256_cfb128:
+ case NID_aes_256_cfb8:
+ case NID_aes_256_cfb1:
+
+ return NID_aes_256_cfb128;
+
+ case NID_des_cfb64:
+ case NID_des_cfb8:
+ case NID_des_cfb1:
+
+ return NID_des_cfb64;
+
+ case NID_des_ede3_cfb64:
+ case NID_des_ede3_cfb8:
+ case NID_des_ede3_cfb1:
+
+ return NID_des_cfb64;
+
+ default:
+ /* Check it has an OID and it is valid */
+ otmp = OBJ_nid2obj(nid);
+ if (!otmp || !otmp->data)
+ nid = NID_undef;
+ ASN1_OBJECT_free(otmp);
+ return nid;
+ }
+}
+
+int EVP_CIPHER_block_size(const EVP_CIPHER *e)
+{
+ return e->block_size;
+}
+
+int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher->block_size;
+}
+
+int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, unsigned int inl)
+{
+ return ctx->cipher->do_cipher(ctx, out, in, inl);
+}
+
+const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher;
+}
+
+unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher)
+{
+ return cipher->flags;
+}
+
+unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher->flags;
+}
+
+void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->app_data;
+}
+
+void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data)
+{
+ ctx->app_data = data;
+}
+
+int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher)
+{
+ return cipher->iv_len;
+}
+
+int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher->iv_len;
+}
+
+int EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
+{
+ return cipher->key_len;
+}
+
+int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->key_len;
+}
+
+int EVP_CIPHER_nid(const EVP_CIPHER *cipher)
+{
+ return cipher->nid;
+}
+
+int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher->nid;
+}
+
+int EVP_MD_block_size(const EVP_MD *md)
+{
+ return md->block_size;
+}