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author | miod <> | 2014-04-13 15:16:38 +0000 |
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committer | miod <> | 2014-04-13 15:16:38 +0000 |
commit | fea4fc3d16f04ff054803f9276895492961ab5e2 (patch) | |
tree | 5120067244554214f4a55a9b6f4ab44bca0a0438 /src/lib/libcrypto/rc5/rc5_enc.c | |
parent | 293732ea9d538daf81033ab02d62cbe188088510 (diff) | |
download | openbsd-fea4fc3d16f04ff054803f9276895492961ab5e2.tar.gz openbsd-fea4fc3d16f04ff054803f9276895492961ab5e2.tar.bz2 openbsd-fea4fc3d16f04ff054803f9276895492961ab5e2.zip |
Import OpenSSL 1.0.1g
Diffstat (limited to 'src/lib/libcrypto/rc5/rc5_enc.c')
-rw-r--r-- | src/lib/libcrypto/rc5/rc5_enc.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/lib/libcrypto/rc5/rc5_enc.c b/src/lib/libcrypto/rc5/rc5_enc.c new file mode 100644 index 0000000000..f327d32a76 --- /dev/null +++ b/src/lib/libcrypto/rc5/rc5_enc.c | |||
@@ -0,0 +1,215 @@ | |||
1 | /* crypto/rc5/rc5_enc.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 | #include <stdio.h> | ||
60 | #include <openssl/rc5.h> | ||
61 | #include "rc5_locl.h" | ||
62 | |||
63 | void RC5_32_cbc_encrypt(const unsigned char *in, unsigned char *out, | ||
64 | long length, RC5_32_KEY *ks, unsigned char *iv, | ||
65 | int encrypt) | ||
66 | { | ||
67 | register unsigned long tin0,tin1; | ||
68 | register unsigned long tout0,tout1,xor0,xor1; | ||
69 | register long l=length; | ||
70 | unsigned long tin[2]; | ||
71 | |||
72 | if (encrypt) | ||
73 | { | ||
74 | c2l(iv,tout0); | ||
75 | c2l(iv,tout1); | ||
76 | iv-=8; | ||
77 | for (l-=8; l>=0; l-=8) | ||
78 | { | ||
79 | c2l(in,tin0); | ||
80 | c2l(in,tin1); | ||
81 | tin0^=tout0; | ||
82 | tin1^=tout1; | ||
83 | tin[0]=tin0; | ||
84 | tin[1]=tin1; | ||
85 | RC5_32_encrypt(tin,ks); | ||
86 | tout0=tin[0]; l2c(tout0,out); | ||
87 | tout1=tin[1]; l2c(tout1,out); | ||
88 | } | ||
89 | if (l != -8) | ||
90 | { | ||
91 | c2ln(in,tin0,tin1,l+8); | ||
92 | tin0^=tout0; | ||
93 | tin1^=tout1; | ||
94 | tin[0]=tin0; | ||
95 | tin[1]=tin1; | ||
96 | RC5_32_encrypt(tin,ks); | ||
97 | tout0=tin[0]; l2c(tout0,out); | ||
98 | tout1=tin[1]; l2c(tout1,out); | ||
99 | } | ||
100 | l2c(tout0,iv); | ||
101 | l2c(tout1,iv); | ||
102 | } | ||
103 | else | ||
104 | { | ||
105 | c2l(iv,xor0); | ||
106 | c2l(iv,xor1); | ||
107 | iv-=8; | ||
108 | for (l-=8; l>=0; l-=8) | ||
109 | { | ||
110 | c2l(in,tin0); tin[0]=tin0; | ||
111 | c2l(in,tin1); tin[1]=tin1; | ||
112 | RC5_32_decrypt(tin,ks); | ||
113 | tout0=tin[0]^xor0; | ||
114 | tout1=tin[1]^xor1; | ||
115 | l2c(tout0,out); | ||
116 | l2c(tout1,out); | ||
117 | xor0=tin0; | ||
118 | xor1=tin1; | ||
119 | } | ||
120 | if (l != -8) | ||
121 | { | ||
122 | c2l(in,tin0); tin[0]=tin0; | ||
123 | c2l(in,tin1); tin[1]=tin1; | ||
124 | RC5_32_decrypt(tin,ks); | ||
125 | tout0=tin[0]^xor0; | ||
126 | tout1=tin[1]^xor1; | ||
127 | l2cn(tout0,tout1,out,l+8); | ||
128 | xor0=tin0; | ||
129 | xor1=tin1; | ||
130 | } | ||
131 | l2c(xor0,iv); | ||
132 | l2c(xor1,iv); | ||
133 | } | ||
134 | tin0=tin1=tout0=tout1=xor0=xor1=0; | ||
135 | tin[0]=tin[1]=0; | ||
136 | } | ||
137 | |||
138 | void RC5_32_encrypt(unsigned long *d, RC5_32_KEY *key) | ||
139 | { | ||
140 | RC5_32_INT a,b,*s; | ||
141 | |||
142 | s=key->data; | ||
143 | |||
144 | a=d[0]+s[0]; | ||
145 | b=d[1]+s[1]; | ||
146 | E_RC5_32(a,b,s, 2); | ||
147 | E_RC5_32(a,b,s, 4); | ||
148 | E_RC5_32(a,b,s, 6); | ||
149 | E_RC5_32(a,b,s, 8); | ||
150 | E_RC5_32(a,b,s,10); | ||
151 | E_RC5_32(a,b,s,12); | ||
152 | E_RC5_32(a,b,s,14); | ||
153 | E_RC5_32(a,b,s,16); | ||
154 | if (key->rounds == 12) | ||
155 | { | ||
156 | E_RC5_32(a,b,s,18); | ||
157 | E_RC5_32(a,b,s,20); | ||
158 | E_RC5_32(a,b,s,22); | ||
159 | E_RC5_32(a,b,s,24); | ||
160 | } | ||
161 | else if (key->rounds == 16) | ||
162 | { | ||
163 | /* Do a full expansion to avoid a jump */ | ||
164 | E_RC5_32(a,b,s,18); | ||
165 | E_RC5_32(a,b,s,20); | ||
166 | E_RC5_32(a,b,s,22); | ||
167 | E_RC5_32(a,b,s,24); | ||
168 | E_RC5_32(a,b,s,26); | ||
169 | E_RC5_32(a,b,s,28); | ||
170 | E_RC5_32(a,b,s,30); | ||
171 | E_RC5_32(a,b,s,32); | ||
172 | } | ||
173 | d[0]=a; | ||
174 | d[1]=b; | ||
175 | } | ||
176 | |||
177 | void RC5_32_decrypt(unsigned long *d, RC5_32_KEY *key) | ||
178 | { | ||
179 | RC5_32_INT a,b,*s; | ||
180 | |||
181 | s=key->data; | ||
182 | |||
183 | a=d[0]; | ||
184 | b=d[1]; | ||
185 | if (key->rounds == 16) | ||
186 | { | ||
187 | D_RC5_32(a,b,s,32); | ||
188 | D_RC5_32(a,b,s,30); | ||
189 | D_RC5_32(a,b,s,28); | ||
190 | D_RC5_32(a,b,s,26); | ||
191 | /* Do a full expansion to avoid a jump */ | ||
192 | D_RC5_32(a,b,s,24); | ||
193 | D_RC5_32(a,b,s,22); | ||
194 | D_RC5_32(a,b,s,20); | ||
195 | D_RC5_32(a,b,s,18); | ||
196 | } | ||
197 | else if (key->rounds == 12) | ||
198 | { | ||
199 | D_RC5_32(a,b,s,24); | ||
200 | D_RC5_32(a,b,s,22); | ||
201 | D_RC5_32(a,b,s,20); | ||
202 | D_RC5_32(a,b,s,18); | ||
203 | } | ||
204 | D_RC5_32(a,b,s,16); | ||
205 | D_RC5_32(a,b,s,14); | ||
206 | D_RC5_32(a,b,s,12); | ||
207 | D_RC5_32(a,b,s,10); | ||
208 | D_RC5_32(a,b,s, 8); | ||
209 | D_RC5_32(a,b,s, 6); | ||
210 | D_RC5_32(a,b,s, 4); | ||
211 | D_RC5_32(a,b,s, 2); | ||
212 | d[0]=a-s[0]; | ||
213 | d[1]=b-s[1]; | ||
214 | } | ||
215 | |||