summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/evp/e_cbc_r2.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/evp/e_cbc_r2.c')
-rw-r--r--src/lib/libcrypto/evp/e_cbc_r2.c216
1 files changed, 0 insertions, 216 deletions
diff --git a/src/lib/libcrypto/evp/e_cbc_r2.c b/src/lib/libcrypto/evp/e_cbc_r2.c
index 9dfada4ea6..e69de29bb2 100644
--- a/src/lib/libcrypto/evp/e_cbc_r2.c
+++ b/src/lib/libcrypto/evp/e_cbc_r2.c
@@ -1,216 +0,0 @@
1/* crypto/evp/e_cbc_r2.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#ifndef NO_RC2
60
61#include <stdio.h>
62#include "cryptlib.h"
63#include <openssl/evp.h>
64#include <openssl/objects.h>
65
66static void rc2_cbc_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
67 unsigned char *iv,int enc);
68static void rc2_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
69 unsigned char *in, unsigned int inl);
70static int rc2_meth_to_magic(const EVP_CIPHER *e);
71static EVP_CIPHER *rc2_magic_to_meth(int i);
72static int rc2_set_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
73static int rc2_get_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
74
75#define RC2_40_MAGIC 0xa0
76#define RC2_64_MAGIC 0x78
77#define RC2_128_MAGIC 0x3a
78
79static EVP_CIPHER r2_cbc_cipher=
80 {
81 NID_rc2_cbc,
82 8,EVP_RC2_KEY_SIZE,8,
83 rc2_cbc_init_key,
84 rc2_cbc_cipher,
85 NULL,
86 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
87 sizeof((((EVP_CIPHER_CTX *)NULL)->c.rc2_ks)),
88 rc2_set_asn1_type_and_iv,
89 rc2_get_asn1_type_and_iv,
90 };
91
92static EVP_CIPHER r2_64_cbc_cipher=
93 {
94 NID_rc2_64_cbc,
95 8,8 /* 64 bit */,8,
96 rc2_cbc_init_key,
97 rc2_cbc_cipher,
98 NULL,
99 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
100 sizeof((((EVP_CIPHER_CTX *)NULL)->c.rc2_ks)),
101 rc2_set_asn1_type_and_iv,
102 rc2_get_asn1_type_and_iv,
103 };
104
105static EVP_CIPHER r2_40_cbc_cipher=
106 {
107 NID_rc2_40_cbc,
108 8,5 /* 40 bit */,8,
109 rc2_cbc_init_key,
110 rc2_cbc_cipher,
111 NULL,
112 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
113 sizeof((((EVP_CIPHER_CTX *)NULL)->c.rc2_ks)),
114 rc2_set_asn1_type_and_iv,
115 rc2_get_asn1_type_and_iv,
116 };
117
118EVP_CIPHER *EVP_rc2_cbc(void)
119 {
120 return(&r2_cbc_cipher);
121 }
122
123EVP_CIPHER *EVP_rc2_64_cbc(void)
124 {
125 return(&r2_64_cbc_cipher);
126 }
127
128EVP_CIPHER *EVP_rc2_40_cbc(void)
129 {
130 return(&r2_40_cbc_cipher);
131 }
132
133static void rc2_cbc_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
134 unsigned char *iv, int enc)
135 {
136 if (iv != NULL)
137 memcpy(&(ctx->oiv[0]),iv,8);
138 memcpy(&(ctx->iv[0]),&(ctx->oiv[0]),8);
139 if (key != NULL)
140 RC2_set_key(&(ctx->c.rc2_ks),EVP_CIPHER_CTX_key_length(ctx),
141 key,EVP_CIPHER_CTX_key_length(ctx)*8);
142 }
143
144static void rc2_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
145 unsigned char *in, unsigned int inl)
146 {
147 RC2_cbc_encrypt(
148 in,out,(long)inl,
149 &(ctx->c.rc2_ks),&(ctx->iv[0]),
150 ctx->encrypt);
151 }
152
153static int rc2_meth_to_magic(const EVP_CIPHER *e)
154 {
155 int i;
156
157 i=EVP_CIPHER_key_length(e);
158 if (i == 16) return(RC2_128_MAGIC);
159 else if (i == 8) return(RC2_64_MAGIC);
160 else if (i == 5) return(RC2_40_MAGIC);
161 else return(0);
162 }
163
164static EVP_CIPHER *rc2_magic_to_meth(int i)
165 {
166 if (i == RC2_128_MAGIC) return(EVP_rc2_cbc());
167 else if (i == RC2_64_MAGIC) return(EVP_rc2_64_cbc());
168 else if (i == RC2_40_MAGIC) return(EVP_rc2_40_cbc());
169 else
170 {
171 EVPerr(EVP_F_RC2_MAGIC_TO_METH,EVP_R_UNSUPPORTED_KEY_SIZE);
172 return(NULL);
173 }
174 }
175
176static int rc2_get_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
177 {
178 long num=0;
179 int i=0,l;
180 EVP_CIPHER *e;
181
182 if (type != NULL)
183 {
184 l=EVP_CIPHER_CTX_iv_length(c);
185 i=ASN1_TYPE_get_int_octetstring(type,&num,c->oiv,l);
186 if (i != l)
187 return(-1);
188 else if (i > 0)
189 memcpy(c->iv,c->oiv,l);
190 e=rc2_magic_to_meth((int)num);
191 if (e == NULL)
192 return(-1);
193 if (e != EVP_CIPHER_CTX_cipher(c))
194 {
195 EVP_CIPHER_CTX_cipher(c)=e;
196 rc2_cbc_init_key(c,NULL,NULL,1);
197 }
198 }
199 return(i);
200 }
201
202static int rc2_set_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
203 {
204 long num;
205 int i=0,j;
206
207 if (type != NULL)
208 {
209 num=rc2_meth_to_magic(EVP_CIPHER_CTX_cipher(c));
210 j=EVP_CIPHER_CTX_iv_length(c);
211 i=ASN1_TYPE_set_int_octetstring(type,num,c->oiv,j);
212 }
213 return(i);
214 }
215
216#endif
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-11-09 10:15:35 +0000