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e_rc2.c

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1/* $OpenBSD: e_rc2.c,v 1.12 2017/01/29 17:49:23 beck Exp $ */-
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#include <stdio.h>-
60-
61#include <openssl/opensslconf.h>-
62-
63#ifndef OPENSSL_NO_RC2-
64-
65#include <openssl/err.h>-
66#include <openssl/evp.h>-
67#include <openssl/objects.h>-
68#include <openssl/rc2.h>-
69-
70#include "evp_locl.h"-
71-
72static int rc2_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,-
73 const unsigned char *iv, int enc);-
74static int rc2_meth_to_magic(EVP_CIPHER_CTX *ctx);-
75static int rc2_magic_to_meth(int i);-
76static int rc2_set_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);-
77static int rc2_get_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);-
78static int rc2_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);-
79-
80typedef struct {-
81 int key_bits; /* effective key bits */-
82 RC2_KEY ks; /* key schedule */-
83} EVP_RC2_KEY;-
84-
85#define data(ctx) ((EVP_RC2_KEY *)(ctx)->cipher_data)-
86-
87IMPLEMENT_BLOCK_CIPHER(rc2, ks, RC2, EVP_RC2_KEY, NID_rc2,
never executed: end of block
executed 18 times by 1 test: RC2_cbc_encrypt(in, out, (long)inl, &((EVP_RC2_KEY *)ctx->cipher_data)->ks, ctx->iv, ctx->encrypt);
Executed by:
  • libcrypto.so.44.0.1
executed 18 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
never executed: chunk>>=3;
executed 4 times by 1 test: chunk=inl;
Executed by:
  • libcrypto.so.44.0.1
executed 4 times by 1 test: chunk=inl;
Executed by:
  • libcrypto.so.44.0.1
executed 4 times by 1 test: end of block
Executed by:
  • libcrypto.so.44.0.1
executed 4 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
never executed: return 1;
executed 448 times by 1 test: RC2_ecb_encrypt(in + i, out + i, &((EVP_RC2_KEY *)ctx->cipher_data)->ks, ctx->encrypt);
Executed by:
  • libcrypto.so.44.0.1
executed 6 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
never executed: end of block
executed 4 times by 1 test: RC2_ofb64_encrypt(in, out, (long)inl, &((EVP_RC2_KEY *)ctx->cipher_data)->ks, ctx->iv, &ctx->num);
Executed by:
  • libcrypto.so.44.0.1
executed 4 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
executed 625 times by 33 tests: return &rc2_cbc;
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
executed 292 times by 33 tests: return &rc2_cfb64;
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
executed 292 times by 33 tests: return &rc2_ofb;
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
executed 292 times by 33 tests: return &rc2_ecb;
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
inlDescription
TRUEevaluated 18 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
64==1Description
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
inl<chunkDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
inl<chunkDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
inl < blDescription
TRUEnever evaluated
FALSEevaluated 6 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
inlDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
inl>=((size_t)...of(long)*8-2))Description
TRUEnever evaluated
FALSEevaluated 18 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
inl>=((size_t)...of(long)*8-2))Description
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
i <= inlDescription
TRUEevaluated 448 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEevaluated 6 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
inlDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
inl>=chunkDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-625
88 8,-
89 RC2_KEY_LENGTH, 8, 64,-
90 EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,-
91 rc2_init_key, NULL,-
92 rc2_set_asn1_type_and_iv, rc2_get_asn1_type_and_iv,-
93 rc2_ctrl)-
94-
95#define RC2_40_MAGIC 0xa0-
96#define RC2_64_MAGIC 0x78-
97#define RC2_128_MAGIC 0x3a-
98-
99static const EVP_CIPHER r2_64_cbc_cipher = {-
100 NID_rc2_64_cbc,-
101 8, 8 /* 64 bit */, 8,-
102 EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,-
103 rc2_init_key,-
104 rc2_cbc_cipher,-
105 NULL,-
106 sizeof(EVP_RC2_KEY),-
107 rc2_set_asn1_type_and_iv,-
108 rc2_get_asn1_type_and_iv,-
109 rc2_ctrl,-
110 NULL-
111};-
112-
113static const EVP_CIPHER r2_40_cbc_cipher = {-
114 NID_rc2_40_cbc,-
115 8, 5 /* 40 bit */, 8,-
116 EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,-
117 rc2_init_key,-
118 rc2_cbc_cipher,-
119 NULL,-
120 sizeof(EVP_RC2_KEY),-
121 rc2_set_asn1_type_and_iv,-
122 rc2_get_asn1_type_and_iv,-
123 rc2_ctrl,-
124 NULL-
125};-
126-
127const EVP_CIPHER *-
128EVP_rc2_64_cbc(void)-
129{-
130 return (&r2_64_cbc_cipher);
executed 292 times by 33 tests: return (&r2_64_cbc_cipher);
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
292
131}-
132-
133const EVP_CIPHER *-
134EVP_rc2_40_cbc(void)-
135{-
136 return (&r2_40_cbc_cipher);
executed 625 times by 33 tests: return (&r2_40_cbc_cipher);
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
625
137}-
138-
139static int-
140rc2_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,-
141 const unsigned char *iv, int enc)-
142{-
143 RC2_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx),-
144 key, data(ctx)->key_bits);-
145 return 1;
executed 24 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
24
146}-
147-
148static int-
149rc2_meth_to_magic(EVP_CIPHER_CTX *e)-
150{-
151 int i;-
152-
153 EVP_CIPHER_CTX_ctrl(e, EVP_CTRL_GET_RC2_KEY_BITS, 0, &i);-
154 if (i == 128)
i == 128Description
TRUEnever evaluated
FALSEnever evaluated
0
155 return (RC2_128_MAGIC);
never executed: return (0x3a);
0
156 else if (i == 64)
i == 64Description
TRUEnever evaluated
FALSEnever evaluated
0
157 return (RC2_64_MAGIC);
never executed: return (0x78);
0
158 else if (i == 40)
i == 40Description
TRUEnever evaluated
FALSEnever evaluated
0
159 return (RC2_40_MAGIC);
never executed: return (0xa0);
0
160 else-
161 return (0);
never executed: return (0);
0
162}-
163-
164static int-
165rc2_magic_to_meth(int i)-
166{-
167 if (i == RC2_128_MAGIC)
i == 0x3aDescription
TRUEnever evaluated
FALSEnever evaluated
0
168 return 128;
never executed: return 128;
0
169 else if (i == RC2_64_MAGIC)
i == 0x78Description
TRUEnever evaluated
FALSEnever evaluated
0
170 return 64;
never executed: return 64;
0
171 else if (i == RC2_40_MAGIC)
i == 0xa0Description
TRUEnever evaluated
FALSEnever evaluated
0
172 return 40;
never executed: return 40;
0
173 else {-
174 EVPerror(EVP_R_UNSUPPORTED_KEY_SIZE);-
175 return (0);
never executed: return (0);
0
176 }-
177}-
178-
179static int-
180rc2_get_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)-
181{-
182 long num = 0;-
183 int i = 0;-
184 int key_bits;-
185 unsigned int l;-
186 unsigned char iv[EVP_MAX_IV_LENGTH];-
187-
188 if (type != NULL) {
type != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
189 l = EVP_CIPHER_CTX_iv_length(c);-
190 if (l > sizeof(iv)) {
l > sizeof(iv)Description
TRUEnever evaluated
FALSEnever evaluated
0
191 EVPerror(EVP_R_IV_TOO_LARGE);-
192 return -1;
never executed: return -1;
0
193 }-
194 i = ASN1_TYPE_get_int_octetstring(type, &num, iv, l);-
195 if (i != (int)l)
i != (int)lDescription
TRUEnever evaluated
FALSEnever evaluated
0
196 return (-1);
never executed: return (-1);
0
197 key_bits = rc2_magic_to_meth((int)num);-
198 if (!key_bits)
!key_bitsDescription
TRUEnever evaluated
FALSEnever evaluated
0
199 return (-1);
never executed: return (-1);
0
200 if (i > 0 && !EVP_CipherInit_ex(c, NULL, NULL, NULL, iv, -1))
i > 0Description
TRUEnever evaluated
FALSEnever evaluated
!EVP_CipherIni...*)0) , iv, -1)Description
TRUEnever evaluated
FALSEnever evaluated
0
201 return -1;
never executed: return -1;
0
202 EVP_CIPHER_CTX_ctrl(c, EVP_CTRL_SET_RC2_KEY_BITS,-
203 key_bits, NULL);-
204 EVP_CIPHER_CTX_set_key_length(c, key_bits / 8);-
205 }
never executed: end of block
0
206 return (i);
never executed: return (i);
0
207}-
208-
209static int-
210rc2_set_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)-
211{-
212 long num;-
213 int i = 0, j;-
214-
215 if (type != NULL) {
type != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
216 num = rc2_meth_to_magic(c);-
217 j = EVP_CIPHER_CTX_iv_length(c);-
218 i = ASN1_TYPE_set_int_octetstring(type, num, c->oiv, j);-
219 }
never executed: end of block
0
220 return (i);
never executed: return (i);
0
221}-
222-
223static int-
224rc2_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)-
225{-
226 switch (type) {-
227 case EVP_CTRL_INIT:
executed 24 times by 1 test: case 0x0:
Executed by:
  • libcrypto.so.44.0.1
24
228 data(c)->key_bits = EVP_CIPHER_CTX_key_length(c) * 8;-
229 return 1;
executed 24 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
24
230-
231 case EVP_CTRL_GET_RC2_KEY_BITS:
never executed: case 0x2:
0
232 *(int *)ptr = data(c)->key_bits;-
233 return 1;
never executed: return 1;
0
234-
235 case EVP_CTRL_SET_RC2_KEY_BITS:
never executed: case 0x3:
0
236 if (arg > 0) {
arg > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
237 data(c)->key_bits = arg;-
238 return 1;
never executed: return 1;
0
239 }-
240 return 0;
never executed: return 0;
0
241-
242#ifdef PBE_PRF_TEST-
243 case EVP_CTRL_PBE_PRF_NID:-
244 *(int *)ptr = NID_hmacWithMD5;-
245 return 1;-
246#endif-
247-
248 default:
never executed: default:
0
249 return -1;
never executed: return -1;
0
250 }-
251}-
252-
253#endif-
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