/*
- * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
- */
-/* ====================================================================
- * 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/)"
+ * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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.
- * ====================================================================
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
/*
const int **, int);
static int ossltest_cipher_nids[] = {
- NID_aes_128_cbc, 0
+ NID_aes_128_cbc, NID_aes_128_gcm, 0
};
/* AES128 */
const unsigned char *iv, int enc);
int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
+int ossltest_aes128_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc);
+int ossltest_aes128_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl);
+static int ossltest_aes128_gcm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
+ void *ptr);
static EVP_CIPHER *_hidden_aes_128_cbc = NULL;
static const EVP_CIPHER *ossltest_aes_128_cbc(void)
}
return _hidden_aes_128_cbc;
}
+static EVP_CIPHER *_hidden_aes_128_gcm = NULL;
+
+#define AES_GCM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
+ | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
+ | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
+ | EVP_CIPH_CUSTOM_COPY |EVP_CIPH_FLAG_AEAD_CIPHER \
+ | EVP_CIPH_GCM_MODE)
+
+static const EVP_CIPHER *ossltest_aes_128_gcm(void)
+{
+ if (_hidden_aes_128_gcm == NULL
+ && ((_hidden_aes_128_gcm = EVP_CIPHER_meth_new(NID_aes_128_gcm,
+ 1 /* block size */,
+ 16 /* key len */)) == NULL
+ || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_gcm,12)
+ || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_gcm, AES_GCM_FLAGS)
+ || !EVP_CIPHER_meth_set_init(_hidden_aes_128_gcm,
+ ossltest_aes128_gcm_init_key)
+ || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_gcm,
+ ossltest_aes128_gcm_cipher)
+ || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_gcm,
+ ossltest_aes128_gcm_ctrl)
+ || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_gcm,
+ EVP_CIPHER_impl_ctx_size(EVP_aes_128_gcm())))) {
+ EVP_CIPHER_meth_free(_hidden_aes_128_gcm);
+ _hidden_aes_128_gcm = NULL;
+ }
+ return _hidden_aes_128_gcm;
+}
+
static void destroy_ciphers(void)
{
EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
+ EVP_CIPHER_meth_free(_hidden_aes_128_gcm);
_hidden_aes_128_cbc = NULL;
}
case NID_aes_128_cbc:
*cipher = ossltest_aes_128_cbc();
break;
+ case NID_aes_128_gcm:
+ *cipher = ossltest_aes_128_gcm();
+ break;
default:
ok = 0;
*cipher = NULL;
return ret;
}
+
+int ossltest_aes128_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ return EVP_CIPHER_meth_get_init(EVP_aes_128_gcm()) (ctx, key, iv, enc);
+}
+
+
+int ossltest_aes128_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl)
+{
+ const size_t datalen = inl - EVP_GCM_TLS_EXPLICIT_IV_LEN
+ - EVP_GCM_TLS_TAG_LEN;
+ unsigned char *tmpbuf = OPENSSL_malloc(datalen);
+
+ if (tmpbuf == NULL)
+ return -1;
+
+ /* Remember what we were asked to encrypt */
+ memcpy(tmpbuf, in + EVP_GCM_TLS_EXPLICIT_IV_LEN, datalen);
+
+ /* Go through the motions of encrypting it */
+ EVP_CIPHER_meth_get_do_cipher(EVP_aes_128_gcm())(ctx, out, in, inl);
+
+ /*
+ * Throw it all away and just use the plaintext as the output with empty
+ * IV and tag
+ */
+ memset(out, 0, inl);
+ memcpy(out + EVP_GCM_TLS_EXPLICIT_IV_LEN, tmpbuf, datalen);
+ OPENSSL_free(tmpbuf);
+
+ return 1;
+}
+
+static int ossltest_aes128_gcm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
+ void *ptr)
+{
+ /* Pass the ctrl down */
+ return EVP_CIPHER_meth_get_ctrl(EVP_aes_128_gcm())(ctx, type, arg, ptr);
+}
projects / openssl.git / blobdiff