-/* crypto/evp/e_des.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
*/
-#ifndef NO_DES
#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/evp.h>
-#include <openssl/objects.h>
-#include "evp_locl.h"
+#include "internal/cryptlib.h"
+#ifndef OPENSSL_NO_DES
+# include <openssl/evp.h>
+# include <openssl/objects.h>
+# include "internal/evp_int.h"
+# include <openssl/des.h>
+# include <openssl/rand.h>
+
+typedef struct {
+ union {
+ double align;
+ DES_key_schedule ks;
+ } ks;
+ union {
+ void (*cbc) (const void *, void *, size_t,
+ const DES_key_schedule *, unsigned char *);
+ } stream;
+} EVP_DES_KEY;
+
+# if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
+/* ----------^^^ this is not a typo, just a way to detect that
+ * assembler support was in general requested... */
+# include "sparc_arch.h"
+
+extern unsigned int OPENSSL_sparcv9cap_P[];
+
+# define SPARC_DES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_DES)
+
+void des_t4_key_expand(const void *key, DES_key_schedule *ks);
+void des_t4_cbc_encrypt(const void *inp, void *out, size_t len,
+ const DES_key_schedule *ks, unsigned char iv[8]);
+void des_t4_cbc_decrypt(const void *inp, void *out, size_t len,
+ const DES_key_schedule *ks, unsigned char iv[8]);
+# endif
static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv, int enc);
+ const unsigned char *iv, int enc);
+static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);
-/* Because of various casts and different names can't use IMPLEMENT_BLOCK_CIPHER */
+/*
+ * Because of various casts and different names can't use
+ * IMPLEMENT_BLOCK_CIPHER
+ */
static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, unsigned int inl)
+ const unsigned char *in, size_t inl)
{
- BLOCK_CIPHER_ecb_loop()
- des_ecb_encrypt((des_cblock *)(in + i), (des_cblock *)(out + i), ctx->c.des_ks, ctx->encrypt);
- return 1;
+ BLOCK_CIPHER_ecb_loop()
+ DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i),
+ EVP_CIPHER_CTX_get_cipher_data(ctx),
+ EVP_CIPHER_CTX_encrypting(ctx));
+ return 1;
}
static int des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, unsigned int inl)
+ const unsigned char *in, size_t inl)
{
- des_ofb64_encrypt(in, out, (long)inl, ctx->c.des_ks, (des_cblock *)ctx->iv, &ctx->num);
- return 1;
+ while (inl >= EVP_MAXCHUNK) {
+ int num = EVP_CIPHER_CTX_num(ctx);
+ DES_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK,
+ EVP_CIPHER_CTX_get_cipher_data(ctx),
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), &num);
+ EVP_CIPHER_CTX_set_num(ctx, num);
+ inl -= EVP_MAXCHUNK;
+ in += EVP_MAXCHUNK;
+ out += EVP_MAXCHUNK;
+ }
+ if (inl) {
+ int num = EVP_CIPHER_CTX_num(ctx);
+ DES_ofb64_encrypt(in, out, (long)inl,
+ EVP_CIPHER_CTX_get_cipher_data(ctx),
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), &num);
+ EVP_CIPHER_CTX_set_num(ctx, num);
+ }
+ return 1;
}
static int des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, unsigned int inl)
+ const unsigned char *in, size_t inl)
+{
+ EVP_DES_KEY *dat = (EVP_DES_KEY *) EVP_CIPHER_CTX_get_cipher_data(ctx);
+
+ if (dat->stream.cbc != NULL) {
+ (*dat->stream.cbc) (in, out, inl, &dat->ks.ks,
+ EVP_CIPHER_CTX_iv_noconst(ctx));
+ return 1;
+ }
+ while (inl >= EVP_MAXCHUNK) {
+ DES_ncbc_encrypt(in, out, (long)EVP_MAXCHUNK,
+ EVP_CIPHER_CTX_get_cipher_data(ctx),
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
+ EVP_CIPHER_CTX_encrypting(ctx));
+ inl -= EVP_MAXCHUNK;
+ in += EVP_MAXCHUNK;
+ out += EVP_MAXCHUNK;
+ }
+ if (inl)
+ DES_ncbc_encrypt(in, out, (long)inl,
+ EVP_CIPHER_CTX_get_cipher_data(ctx),
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
+ EVP_CIPHER_CTX_encrypting(ctx));
+ return 1;
+}
+
+static int des_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl)
+{
+ while (inl >= EVP_MAXCHUNK) {
+ int num = EVP_CIPHER_CTX_num(ctx);
+ DES_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK,
+ EVP_CIPHER_CTX_get_cipher_data(ctx),
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), &num,
+ EVP_CIPHER_CTX_encrypting(ctx));
+ EVP_CIPHER_CTX_set_num(ctx, num);
+ inl -= EVP_MAXCHUNK;
+ in += EVP_MAXCHUNK;
+ out += EVP_MAXCHUNK;
+ }
+ if (inl) {
+ int num = EVP_CIPHER_CTX_num(ctx);
+ DES_cfb64_encrypt(in, out, (long)inl,
+ EVP_CIPHER_CTX_get_cipher_data(ctx),
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), &num,
+ EVP_CIPHER_CTX_encrypting(ctx));
+ EVP_CIPHER_CTX_set_num(ctx, num);
+ }
+ return 1;
+}
+
+/*
+ * Although we have a CFB-r implementation for DES, it doesn't pack the right
+ * way, so wrap it here
+ */
+static int des_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl)
{
- des_ncbc_encrypt(in, out, (long)inl, ctx->c.des_ks,
- (des_cblock *)ctx->iv, ctx->encrypt);
- return 1;
+ size_t n, chunk = EVP_MAXCHUNK / 8;
+ unsigned char c[1], d[1];
+
+ if (inl < chunk)
+ chunk = inl;
+
+ while (inl && inl >= chunk) {
+ for (n = 0; n < chunk * 8; ++n) {
+ c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0;
+ DES_cfb_encrypt(c, d, 1, 1, EVP_CIPHER_CTX_get_cipher_data(ctx),
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
+ EVP_CIPHER_CTX_encrypting(ctx));
+ out[n / 8] =
+ (out[n / 8] & ~(0x80 >> (unsigned int)(n % 8))) |
+ ((d[0] & 0x80) >> (unsigned int)(n % 8));
+ }
+ inl -= chunk;
+ in += chunk;
+ out += chunk;
+ if (inl < chunk)
+ chunk = inl;
+ }
+
+ return 1;
}
-static int des_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, unsigned int inl)
+static int des_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl)
{
- des_cfb64_encrypt(in, out, (long)inl, ctx->c.des_ks,
- (des_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
- return 1;
+ while (inl >= EVP_MAXCHUNK) {
+ DES_cfb_encrypt(in, out, 8, (long)EVP_MAXCHUNK,
+ EVP_CIPHER_CTX_get_cipher_data(ctx),
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
+ EVP_CIPHER_CTX_encrypting(ctx));
+ inl -= EVP_MAXCHUNK;
+ in += EVP_MAXCHUNK;
+ out += EVP_MAXCHUNK;
+ }
+ if (inl)
+ DES_cfb_encrypt(in, out, 8, (long)inl,
+ EVP_CIPHER_CTX_get_cipher_data(ctx),
+ (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
+ EVP_CIPHER_CTX_encrypting(ctx));
+ return 1;
}
-BLOCK_CIPHER_defs(des, des_ks, NID_des, 8, 8, 8,
- 0, des_init_key, NULL,
- EVP_CIPHER_set_asn1_iv,
- EVP_CIPHER_get_asn1_iv,
- NULL)
+BLOCK_CIPHER_defs(des, EVP_DES_KEY, NID_des, 8, 8, 8, 64,
+ EVP_CIPH_RAND_KEY, des_init_key, NULL,
+ EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, des_ctrl)
+ BLOCK_CIPHER_def_cfb(des, EVP_DES_KEY, NID_des, 8, 8, 1,
+ EVP_CIPH_RAND_KEY, des_init_key, NULL,
+ EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, des_ctrl)
+
+ BLOCK_CIPHER_def_cfb(des, EVP_DES_KEY, NID_des, 8, 8, 8,
+ EVP_CIPH_RAND_KEY, des_init_key, NULL,
+ EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, des_ctrl)
static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv, int enc)
- {
- des_cblock *deskey = (des_cblock *)key;
+ const unsigned char *iv, int enc)
+{
+ DES_cblock *deskey = (DES_cblock *)key;
+ EVP_DES_KEY *dat = (EVP_DES_KEY *) EVP_CIPHER_CTX_get_cipher_data(ctx);
+
+ dat->stream.cbc = NULL;
+# if defined(SPARC_DES_CAPABLE)
+ if (SPARC_DES_CAPABLE) {
+ int mode = EVP_CIPHER_CTX_mode(ctx);
- des_set_key_unchecked(deskey,ctx->c.des_ks);
- return 1;
- }
+ if (mode == EVP_CIPH_CBC_MODE) {
+ des_t4_key_expand(key, &dat->ks.ks);
+ dat->stream.cbc = enc ? des_t4_cbc_encrypt : des_t4_cbc_decrypt;
+ return 1;
+ }
+ }
+# endif
+ DES_set_key_unchecked(deskey, EVP_CIPHER_CTX_get_cipher_data(ctx));
+ return 1;
+}
+
+static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
+{
+
+ switch (type) {
+ case EVP_CTRL_RAND_KEY:
+ if (RAND_priv_bytes(ptr, 8) <= 0)
+ return 0;
+ DES_set_odd_parity((DES_cblock *)ptr);
+ return 1;
+
+ default:
+ return -1;
+ }
+}
#endif
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