diff options
Diffstat (limited to 'cipher-bf1.c')
-rw-r--r-- | cipher-bf1.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/cipher-bf1.c b/cipher-bf1.c deleted file mode 100644 index c205b077c..000000000 --- a/cipher-bf1.c +++ /dev/null | |||
@@ -1,106 +0,0 @@ | |||
1 | /* $OpenBSD: cipher-bf1.c,v 1.7 2015/01/14 10:24:42 markus Exp $ */ | ||
2 | /* | ||
3 | * Copyright (c) 2003 Markus Friedl. All rights reserved. | ||
4 | * | ||
5 | * Permission to use, copy, modify, and distribute this software for any | ||
6 | * purpose with or without fee is hereby granted, provided that the above | ||
7 | * copyright notice and this permission notice appear in all copies. | ||
8 | * | ||
9 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | ||
10 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | ||
11 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | ||
12 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
13 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
14 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
15 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
16 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
17 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||
18 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
19 | */ | ||
20 | |||
21 | #include "includes.h" | ||
22 | |||
23 | #ifdef WITH_SSH1 | ||
24 | #if defined(WITH_OPENSSL) && !defined(OPENSSL_NO_BF) | ||
25 | |||
26 | #include <sys/types.h> | ||
27 | |||
28 | #include <stdarg.h> | ||
29 | #include <string.h> | ||
30 | |||
31 | #include <openssl/evp.h> | ||
32 | |||
33 | #include "openbsd-compat/openssl-compat.h" | ||
34 | |||
35 | /* | ||
36 | * SSH1 uses a variation on Blowfish, all bytes must be swapped before | ||
37 | * and after encryption/decryption. Thus the swap_bytes stuff (yuk). | ||
38 | */ | ||
39 | |||
40 | const EVP_CIPHER * evp_ssh1_bf(void); | ||
41 | |||
42 | static void | ||
43 | swap_bytes(const u_char *src, u_char *dst, int n) | ||
44 | { | ||
45 | u_char c[4]; | ||
46 | |||
47 | /* Process 4 bytes every lap. */ | ||
48 | for (n = n / 4; n > 0; n--) { | ||
49 | c[3] = *src++; | ||
50 | c[2] = *src++; | ||
51 | c[1] = *src++; | ||
52 | c[0] = *src++; | ||
53 | |||
54 | *dst++ = c[0]; | ||
55 | *dst++ = c[1]; | ||
56 | *dst++ = c[2]; | ||
57 | *dst++ = c[3]; | ||
58 | } | ||
59 | } | ||
60 | |||
61 | #ifdef SSH_OLD_EVP | ||
62 | static void bf_ssh1_init (EVP_CIPHER_CTX * ctx, const unsigned char *key, | ||
63 | const unsigned char *iv, int enc) | ||
64 | { | ||
65 | if (iv != NULL) | ||
66 | memcpy (&(ctx->oiv[0]), iv, 8); | ||
67 | memcpy (&(ctx->iv[0]), &(ctx->oiv[0]), 8); | ||
68 | if (key != NULL) | ||
69 | BF_set_key (&(ctx->c.bf_ks), EVP_CIPHER_CTX_key_length (ctx), | ||
70 | key); | ||
71 | } | ||
72 | #endif | ||
73 | |||
74 | static int (*orig_bf)(EVP_CIPHER_CTX *, u_char *, | ||
75 | const u_char *, LIBCRYPTO_EVP_INL_TYPE) = NULL; | ||
76 | |||
77 | static int | ||
78 | bf_ssh1_cipher(EVP_CIPHER_CTX *ctx, u_char *out, const u_char *in, | ||
79 | LIBCRYPTO_EVP_INL_TYPE len) | ||
80 | { | ||
81 | int ret; | ||
82 | |||
83 | swap_bytes(in, out, len); | ||
84 | ret = (*orig_bf)(ctx, out, out, len); | ||
85 | swap_bytes(out, out, len); | ||
86 | return (ret); | ||
87 | } | ||
88 | |||
89 | const EVP_CIPHER * | ||
90 | evp_ssh1_bf(void) | ||
91 | { | ||
92 | static EVP_CIPHER ssh1_bf; | ||
93 | |||
94 | memcpy(&ssh1_bf, EVP_bf_cbc(), sizeof(EVP_CIPHER)); | ||
95 | orig_bf = ssh1_bf.do_cipher; | ||
96 | ssh1_bf.nid = NID_undef; | ||
97 | #ifdef SSH_OLD_EVP | ||
98 | ssh1_bf.init = bf_ssh1_init; | ||
99 | #endif | ||
100 | ssh1_bf.do_cipher = bf_ssh1_cipher; | ||
101 | ssh1_bf.key_len = 32; | ||
102 | return (&ssh1_bf); | ||
103 | } | ||
104 | #endif /* defined(WITH_OPENSSL) && !defined(OPENSSL_NO_BF) */ | ||
105 | |||
106 | #endif /* WITH_SSH1 */ | ||