Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/rc2/rc2ofb64.c |
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1 | /* $OpenBSD: rc2ofb64.c,v 1.5 2014/10/28 07:35:59 jsg 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 <openssl/rc2.h> | - | ||||||
60 | #include "rc2_locl.h" | - | ||||||
61 | - | |||||||
62 | /* The input and output encrypted as though 64bit ofb mode is being | - | ||||||
63 | * used. The extra state information to record how much of the | - | ||||||
64 | * 64bit block we have used is contained in *num; | - | ||||||
65 | */ | - | ||||||
66 | void RC2_ofb64_encrypt(const unsigned char *in, unsigned char *out, | - | ||||||
67 | long length, RC2_KEY *schedule, unsigned char *ivec, | - | ||||||
68 | int *num) | - | ||||||
69 | { | - | ||||||
70 | unsigned long v0,v1,t; | - | ||||||
71 | int n= *num; | - | ||||||
72 | long l=length; | - | ||||||
73 | unsigned char d[8]; | - | ||||||
74 | char *dp; | - | ||||||
75 | unsigned long ti[2]; | - | ||||||
76 | unsigned char *iv; | - | ||||||
77 | int save=0; | - | ||||||
78 | - | |||||||
79 | iv=(unsigned char *)ivec; | - | ||||||
80 | c2l(iv,v0); | - | ||||||
81 | c2l(iv,v1); | - | ||||||
82 | ti[0]=v0; | - | ||||||
83 | ti[1]=v1; | - | ||||||
84 | dp=(char *)d; | - | ||||||
85 | l2c(v0,dp); | - | ||||||
86 | l2c(v1,dp); | - | ||||||
87 | while (l--)
| 4-3552 | ||||||
88 | { | - | ||||||
89 | if (n == 0)
| 444-3108 | ||||||
90 | { | - | ||||||
91 | RC2_encrypt((unsigned long *)ti,schedule); | - | ||||||
92 | dp=(char *)d; | - | ||||||
93 | t=ti[0]; l2c(t,dp); | - | ||||||
94 | t=ti[1]; l2c(t,dp); | - | ||||||
95 | save++; | - | ||||||
96 | } executed 444 times by 1 test: end of block Executed by:
| 444 | ||||||
97 | *(out++)= *(in++)^d[n]; | - | ||||||
98 | n=(n+1)&0x07; | - | ||||||
99 | } executed 3552 times by 1 test: end of block Executed by:
| 3552 | ||||||
100 | if (save)
| 0-4 | ||||||
101 | { | - | ||||||
102 | v0=ti[0]; | - | ||||||
103 | v1=ti[1]; | - | ||||||
104 | iv=(unsigned char *)ivec; | - | ||||||
105 | l2c(v0,iv); | - | ||||||
106 | l2c(v1,iv); | - | ||||||
107 | } executed 4 times by 1 test: end of block Executed by:
| 4 | ||||||
108 | t=v0=v1=ti[0]=ti[1]=0; | - | ||||||
109 | *num=n; | - | ||||||
110 | } executed 4 times by 1 test: end of block Executed by:
| 4 | ||||||
111 | - | |||||||
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