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authordjm@openbsd.org <djm@openbsd.org>2019-01-21 10:00:23 +0000
committerDamien Miller <djm@mindrot.org>2019-01-21 21:47:28 +1100
commite93bd98eab79b9a78f64ee8dd4dffc4d3979c7ae (patch)
treeb02f3b1ca965cfa9fbbf3fbf4b8a3b56d93088cd /kexdhs.c
parent5ae3f6d314465026d028af82609c1d49ad197655 (diff)
upstream: factor out DH keygen; it's identical between the client
and the server from markus@ ok djm@ OpenBSD-Commit-ID: 2be57f6a0d44f1ab2c8de2b1b5d6f530c387fae9
Diffstat (limited to 'kexdhs.c')
-rw-r--r--kexdhs.c35
1 files changed, 5 insertions, 30 deletions
diff --git a/kexdhs.c b/kexdhs.c
index b7b64a82..cd2e52e0 100644
--- a/kexdhs.c
+++ b/kexdhs.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: kexdhs.c,v 1.32 2019/01/21 09:55:52 djm Exp $ */
+/* $OpenBSD: kexdhs.c,v 1.33 2019/01/21 10:00:23 djm Exp $ */
/*
* Copyright (c) 2001 Markus Friedl. All rights reserved.
*
@@ -40,10 +40,10 @@
#include "sshkey.h"
#include "cipher.h"
#include "digest.h"
+#include "dh.h"
#include "kex.h"
#include "log.h"
#include "packet.h"
-#include "dh.h"
#include "ssh2.h"
#include "dispatch.h"
@@ -60,36 +60,11 @@ kexdh_server(struct ssh *ssh)
int r;
/* generate server DH public key */
- switch (kex->kex_type) {
- case KEX_DH_GRP1_SHA1:
- kex->dh = dh_new_group1();
- break;
- case KEX_DH_GRP14_SHA1:
- case KEX_DH_GRP14_SHA256:
- kex->dh = dh_new_group14();
- break;
- case KEX_DH_GRP16_SHA512:
- kex->dh = dh_new_group16();
- break;
- case KEX_DH_GRP18_SHA512:
- kex->dh = dh_new_group18();
- break;
- default:
- r = SSH_ERR_INVALID_ARGUMENT;
- goto out;
- }
- if (kex->dh == NULL) {
- r = SSH_ERR_ALLOC_FAIL;
- goto out;
- }
- if ((r = dh_gen_key(kex->dh, kex->we_need * 8)) != 0)
- goto out;
-
+ if ((r = kex_dh_keygen(kex)) != 0)
+ return r;
debug("expecting SSH2_MSG_KEXDH_INIT");
ssh_dispatch_set(ssh, SSH2_MSG_KEXDH_INIT, &input_kex_dh_init);
- r = 0;
- out:
- return r;
+ return 0;
}
int