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Diffstat (limited to 'ssh-dss.c')
-rw-r--r--ssh-dss.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/ssh-dss.c b/ssh-dss.c
index 7b897475c..6b4abcb7d 100644
--- a/ssh-dss.c
+++ b/ssh-dss.c
@@ -1,4 +1,4 @@
1/* $OpenBSD: ssh-dss.c,v 1.30 2014/01/09 23:20:00 djm Exp $ */ 1/* $OpenBSD: ssh-dss.c,v 1.31 2014/02/02 03:44:31 djm Exp $ */
2/* 2/*
3 * Copyright (c) 2000 Markus Friedl. All rights reserved. 3 * Copyright (c) 2000 Markus Friedl. All rights reserved.
4 * 4 *
@@ -65,7 +65,7 @@ ssh_dss_sign(const Key *key, u_char **sigp, u_int *lenp,
65 } 65 }
66 66
67 sig = DSA_do_sign(digest, dlen, key->dsa); 67 sig = DSA_do_sign(digest, dlen, key->dsa);
68 memset(digest, 'd', sizeof(digest)); 68 explicit_bzero(digest, sizeof(digest));
69 69
70 if (sig == NULL) { 70 if (sig == NULL) {
71 error("ssh_dss_sign: sign failed"); 71 error("ssh_dss_sign: sign failed");
@@ -79,7 +79,7 @@ ssh_dss_sign(const Key *key, u_char **sigp, u_int *lenp,
79 DSA_SIG_free(sig); 79 DSA_SIG_free(sig);
80 return -1; 80 return -1;
81 } 81 }
82 memset(sigblob, 0, SIGBLOB_LEN); 82 explicit_bzero(sigblob, SIGBLOB_LEN);
83 BN_bn2bin(sig->r, sigblob+ SIGBLOB_LEN - INTBLOB_LEN - rlen); 83 BN_bn2bin(sig->r, sigblob+ SIGBLOB_LEN - INTBLOB_LEN - rlen);
84 BN_bn2bin(sig->s, sigblob+ SIGBLOB_LEN - slen); 84 BN_bn2bin(sig->s, sigblob+ SIGBLOB_LEN - slen);
85 DSA_SIG_free(sig); 85 DSA_SIG_free(sig);
@@ -168,7 +168,7 @@ ssh_dss_verify(const Key *key, const u_char *signature, u_int signaturelen,
168 fatal("%s: BN_bin2bn failed", __func__); 168 fatal("%s: BN_bin2bn failed", __func__);
169 169
170 /* clean up */ 170 /* clean up */
171 memset(sigblob, 0, len); 171 explicit_bzero(sigblob, len);
172 free(sigblob); 172 free(sigblob);
173 173
174 /* sha1 the data */ 174 /* sha1 the data */
@@ -179,7 +179,7 @@ ssh_dss_verify(const Key *key, const u_char *signature, u_int signaturelen,
179 } 179 }
180 180
181 ret = DSA_do_verify(digest, dlen, sig, key->dsa); 181 ret = DSA_do_verify(digest, dlen, sig, key->dsa);
182 memset(digest, 'd', sizeof(digest)); 182 explicit_bzero(digest, sizeof(digest));
183 183
184 DSA_SIG_free(sig); 184 DSA_SIG_free(sig);
185 185