-/* crypto/evp/evp_lib.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * 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 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 acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS 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 AUTHOR OR 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.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * 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
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/evp.h>
#include <openssl/objects.h>
+#include "internal/evp_int.h"
+#include "evp_locl.h"
int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
{
case EVP_CIPH_CCM_MODE:
case EVP_CIPH_XTS_MODE:
case EVP_CIPH_OCB_MODE:
- ret = -1;
+ ret = -2;
break;
default:
}
} else
ret = -1;
- return (ret);
+ if (ret <= 0)
+ EVPerr(EVP_F_EVP_CIPHER_PARAM_TO_ASN1, ret == -2 ?
+ ASN1_R_UNSUPPORTED_CIPHER :
+ EVP_R_CIPHER_PARAMETER_ERROR);
+ if (ret < -1)
+ ret = -1;
+ return ret;
}
int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
case EVP_CIPH_CCM_MODE:
case EVP_CIPH_XTS_MODE:
case EVP_CIPH_OCB_MODE:
- ret = -1;
+ ret = -2;
break;
default:
}
} else
ret = -1;
- return (ret);
+ if (ret <= 0)
+ EVPerr(EVP_F_EVP_CIPHER_ASN1_TO_PARAM, ret == -2 ?
+ EVP_R_UNSUPPORTED_CIPHER :
+ EVP_R_CIPHER_PARAMETER_ERROR);
+ if (ret < -1)
+ ret = -1;
+ return ret;
}
int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
OPENSSL_assert(l <= sizeof(c->iv));
i = ASN1_TYPE_get_octetstring(type, c->oiv, l);
if (i != (int)l)
- return (-1);
+ return -1;
else if (i > 0)
memcpy(c->iv, c->oiv, l);
}
- return (i);
+ return i;
}
int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
OPENSSL_assert(j <= sizeof(c->iv));
i = ASN1_TYPE_set_octetstring(type, c->oiv, j);
}
- return (i);
+ return i;
}
/* Convert the various cipher NIDs and dummies to a proper OID NID */
return ctx->cipher->block_size;
}
+int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *e)
+{
+ return e->ctx_size;
+}
+
int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, unsigned int inl)
{
return ctx->cipher;
}
-unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher)
+int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx)
{
- return cipher->flags;
+ return ctx->encrypt;
}
-unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx)
+unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher)
{
- return ctx->cipher->flags;
+ return cipher->flags;
}
void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx)
ctx->app_data = data;
}
+void *EVP_CIPHER_CTX_get_cipher_data(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher_data;
+}
+
+void *EVP_CIPHER_CTX_set_cipher_data(EVP_CIPHER_CTX *ctx, void *cipher_data)
+{
+ void *old_cipher_data;
+
+ old_cipher_data = ctx->cipher_data;
+ ctx->cipher_data = cipher_data;
+
+ return old_cipher_data;
+}
+
int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher)
{
return cipher->iv_len;
return ctx->cipher->iv_len;
}
+const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->oiv;
+}
+
+const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->iv;
+}
+
+unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx)
+{
+ return ctx->iv;
+}
+
+unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx)
+{
+ return ctx->buf;
+}
+
+int EVP_CIPHER_CTX_num(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->num;
+}
+
+void EVP_CIPHER_CTX_set_num(EVP_CIPHER_CTX *ctx, int num)
+{
+ ctx->num = num;
+}
+
int EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
{
return cipher->key_len;
return md->flags;
}
+EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type)
+{
+ EVP_MD *md = OPENSSL_zalloc(sizeof(*md));
+
+ if (md != NULL) {
+ md->type = md_type;
+ md->pkey_type = pkey_type;
+ }
+ return md;
+}
+EVP_MD *EVP_MD_meth_dup(const EVP_MD *md)
+{
+ EVP_MD *to = EVP_MD_meth_new(md->type, md->pkey_type);
+
+ if (to != NULL)
+ memcpy(to, md, sizeof(*to));
+ return to;
+}
+void EVP_MD_meth_free(EVP_MD *md)
+{
+ OPENSSL_free(md);
+}
+int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize)
+{
+ md->block_size = blocksize;
+ return 1;
+}
+int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize)
+{
+ md->md_size = resultsize;
+ return 1;
+}
+int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize)
+{
+ md->ctx_size = datasize;
+ return 1;
+}
+int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags)
+{
+ md->flags = flags;
+ return 1;
+}
+int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx))
+{
+ md->init = init;
+ return 1;
+}
+int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx,
+ const void *data,
+ size_t count))
+{
+ md->update = update;
+ return 1;
+}
+int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx,
+ unsigned char *md))
+{
+ md->final = final;
+ return 1;
+}
+int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to,
+ const EVP_MD_CTX *from))
+{
+ md->copy = copy;
+ return 1;
+}
+int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx))
+{
+ md->cleanup = cleanup;
+ return 1;
+}
+int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd,
+ int p1, void *p2))
+{
+ md->md_ctrl = ctrl;
+ return 1;
+}
+
+int EVP_MD_meth_get_input_blocksize(const EVP_MD *md)
+{
+ return md->block_size;
+}
+int EVP_MD_meth_get_result_size(const EVP_MD *md)
+{
+ return md->md_size;
+}
+int EVP_MD_meth_get_app_datasize(const EVP_MD *md)
+{
+ return md->ctx_size;
+}
+unsigned long EVP_MD_meth_get_flags(const EVP_MD *md)
+{
+ return md->flags;
+}
+int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx)
+{
+ return md->init;
+}
+int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx,
+ const void *data,
+ size_t count)
+{
+ return md->update;
+}
+int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx,
+ unsigned char *md)
+{
+ return md->final;
+}
+int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to,
+ const EVP_MD_CTX *from)
+{
+ return md->copy;
+}
+int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx)
+{
+ return md->cleanup;
+}
+int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd,
+ int p1, void *p2)
+{
+ return md->md_ctrl;
+}
+
const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
{
if (!ctx)
return ctx->digest;
}
+EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx)
+{
+ return ctx->pctx;
+}
+
+void EVP_MD_CTX_set_pkey_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pctx)
+{
+ /*
+ * it's reasonable to set NULL pctx (a.k.a clear the ctx->pctx), so
+ * we have to deal with the cleanup job here.
+ */
+ if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX))
+ EVP_PKEY_CTX_free(ctx->pctx);
+
+ ctx->pctx = pctx;
+
+ if (pctx != NULL) {
+ /* make sure pctx is not freed when destroying EVP_MD_CTX */
+ EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
+ } else {
+ EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
+ }
+}
+
+void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx)
+{
+ return ctx->md_data;
+}
+
+int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx,
+ const void *data, size_t count)
+{
+ return ctx->update;
+}
+
+void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx,
+ int (*update) (EVP_MD_CTX *ctx,
+ const void *data, size_t count))
+{
+ ctx->update = update;
+}
+
void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags)
{
ctx->flags |= flags;
{
return (ctx->flags & flags);
}
+
+int EVP_str2ctrl(int (*cb)(void *ctx, int cmd, void *buf, size_t buflen),
+ void *ctx, int cmd, const char *value)
+{
+ size_t len;
+
+ len = strlen(value);
+ if (len > INT_MAX)
+ return -1;
+ return cb(ctx, cmd, (void *)value, len);
+}
+
+int EVP_hex2ctrl(int (*cb)(void *ctx, int cmd, void *buf, size_t buflen),
+ void *ctx, int cmd, const char *hex)
+{
+ unsigned char *bin;
+ long binlen;
+ int rv = -1;
+
+ bin = OPENSSL_hexstr2buf(hex, &binlen);
+ if (bin == NULL)
+ return 0;
+ if (binlen <= INT_MAX)
+ rv = cb(ctx, cmd, bin, binlen);
+ OPENSSL_free(bin);
+ return rv;
+}
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