check in v3.8.0 source

crypto/evp/cipher_method_lib.c

@@ -0,0 +1,178 @@
+/*	$OpenBSD: cipher_method_lib.c,v 1.8 2023/03/01 11:27:37 tb Exp $ */
+/*
+ * Written by Richard Levitte (levitte@openssl.org) for the OpenSSL project
+ * 2015.
+ */
+/* ====================================================================
+ * Copyright (c) 2015 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <stdlib.h>
+
+#include <openssl/evp.h>
+
+#include "evp_local.h"
+
+EVP_CIPHER *
+EVP_CIPHER_meth_new(int cipher_type, int block_size, int key_len)
+{
+	EVP_CIPHER *cipher;
+
+	if ((cipher = calloc(1, sizeof(*cipher))) == NULL)
+		return NULL;
+
+	cipher->nid = cipher_type;
+	cipher->block_size = block_size;
+	cipher->key_len = key_len;
+
+	return cipher;
+}
+
+EVP_CIPHER *
+EVP_CIPHER_meth_dup(const EVP_CIPHER *cipher)
+{
+	EVP_CIPHER *copy;
+
+	if ((copy = calloc(1, sizeof(*copy))) == NULL)
+		return NULL;
+
+	*copy = *cipher;
+
+	return copy;
+}
+
+void
+EVP_CIPHER_meth_free(EVP_CIPHER *cipher)
+{
+	free(cipher);
+}
+
+int
+EVP_CIPHER_meth_set_iv_length(EVP_CIPHER *cipher, int iv_len)
+{
+	cipher->iv_len = iv_len;
+
+	return 1;
+}
+
+int
+EVP_CIPHER_meth_set_flags(EVP_CIPHER *cipher, unsigned long flags)
+{
+	cipher->flags = flags;
+
+	return 1;
+}
+
+int
+EVP_CIPHER_meth_set_impl_ctx_size(EVP_CIPHER *cipher, int ctx_size)
+{
+	cipher->ctx_size = ctx_size;
+
+	return 1;
+}
+
+int
+EVP_CIPHER_meth_set_init(EVP_CIPHER *cipher,
+    int (*init)(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+    const unsigned char *iv, int enc))
+{
+	cipher->init = init;
+
+	return 1;
+}
+
+int
+EVP_CIPHER_meth_set_do_cipher(EVP_CIPHER *cipher,
+    int (*do_cipher)(EVP_CIPHER_CTX *ctx, unsigned char *out,
+    const unsigned char *in, size_t inl))
+{
+	cipher->do_cipher = do_cipher;
+
+	return 1;
+}
+
+int
+EVP_CIPHER_meth_set_cleanup(EVP_CIPHER *cipher,
+    int (*cleanup)(EVP_CIPHER_CTX *))
+{
+	cipher->cleanup = cleanup;
+
+	return 1;
+}
+
+int
+EVP_CIPHER_meth_set_set_asn1_params(EVP_CIPHER *cipher,
+    int (*set_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *))
+{
+	cipher->set_asn1_parameters = set_asn1_parameters;
+
+	return 1;
+}
+
+int
+EVP_CIPHER_meth_set_get_asn1_params(EVP_CIPHER *cipher,
+    int (*get_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *))
+{
+	cipher->get_asn1_parameters = get_asn1_parameters;
+
+	return 1;
+}
+
+int
+EVP_CIPHER_meth_set_ctrl(EVP_CIPHER *cipher,
+    int (*ctrl)(EVP_CIPHER_CTX *, int type, int arg, void *ptr))
+{
+	cipher->ctrl = ctrl;
+
+	return 1;
+}