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-rw-r--r--kexdh.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/kexdh.c b/kexdh.c
index 56e22f5bc..e7cdadc90 100644
--- a/kexdh.c
+++ b/kexdh.c
@@ -1,4 +1,4 @@
1/* $OpenBSD: kexdh.c,v 1.23 2006/08/03 03:34:42 deraadt Exp $ */ 1/* $OpenBSD: kexdh.c,v 1.24 2014/01/09 23:20:00 djm Exp $ */
2/* 2/*
3 * Copyright (c) 2001 Markus Friedl. All rights reserved. 3 * Copyright (c) 2001 Markus Friedl. All rights reserved.
4 * 4 *
@@ -36,6 +36,8 @@
36#include "key.h" 36#include "key.h"
37#include "cipher.h" 37#include "cipher.h"
38#include "kex.h" 38#include "kex.h"
39#include "digest.h"
40#include "log.h"
39 41
40void 42void
41kex_dh_hash( 43kex_dh_hash(
@@ -50,9 +52,7 @@ kex_dh_hash(
50 u_char **hash, u_int *hashlen) 52 u_char **hash, u_int *hashlen)
51{ 53{
52 Buffer b; 54 Buffer b;
53 static u_char digest[EVP_MAX_MD_SIZE]; 55 static u_char digest[SSH_DIGEST_MAX_LENGTH];
54 const EVP_MD *evp_md = EVP_sha1();
55 EVP_MD_CTX md;
56 56
57 buffer_init(&b); 57 buffer_init(&b);
58 buffer_put_cstring(&b, client_version_string); 58 buffer_put_cstring(&b, client_version_string);
@@ -74,15 +74,14 @@ kex_dh_hash(
74#ifdef DEBUG_KEX 74#ifdef DEBUG_KEX
75 buffer_dump(&b); 75 buffer_dump(&b);
76#endif 76#endif
77 EVP_DigestInit(&md, evp_md); 77 if (ssh_digest_buffer(SSH_DIGEST_SHA1, &b, digest, sizeof(digest)) != 0)
78 EVP_DigestUpdate(&md, buffer_ptr(&b), buffer_len(&b)); 78 fatal("%s: ssh_digest_buffer failed", __func__);
79 EVP_DigestFinal(&md, digest, NULL);
80 79
81 buffer_free(&b); 80 buffer_free(&b);
82 81
83#ifdef DEBUG_KEX 82#ifdef DEBUG_KEX
84 dump_digest("hash", digest, EVP_MD_size(evp_md)); 83 dump_digest("hash", digest, ssh_digest_bytes(SSH_DIGEST_SHA1));
85#endif 84#endif
86 *hash = digest; 85 *hash = digest;
87 *hashlen = EVP_MD_size(evp_md); 86 *hashlen = ssh_digest_bytes(SSH_DIGEST_SHA1);
88} 87}