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34 lines
1.0 KiB
34 lines
1.0 KiB
9 months ago
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From 7250879c72d28275a53f2f220e49646c3e42ef18 Mon Sep 17 00:00:00 2001
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From: "djm@openbsd.org" <djm@openbsd.org>
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Date: Fri, 12 Jul 2019 04:08:39 +0000
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Subject: [PATCH] upstream: include SHA2-variant RSA key algorithms in KEX
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proposal;
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allows ssh-keyscan to harvest keys from servers that disable olde SHA1
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ssh-rsa. bz#3029 from Jakub Jelen
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OpenBSD-Commit-ID: 9f95ebf76a150c2f727ca4780fb2599d50bbab7a
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---
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ssh-keyscan.c | 9 +++++++--
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1 file changed, 7 insertions(+), 2 deletions(-)
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diff --git a/ssh-keyscan.c b/ssh-keyscan.c
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index d95ba1b37..d383b57b9 100644
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--- a/ssh-keyscan.c
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+++ b/ssh-keyscan.c
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@@ -233,7 +233,12 @@ keygrab_ssh2(con *c)
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break;
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case KT_RSA:
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myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS] = get_cert ?
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- "ssh-rsa-cert-v01@openssh.com" : "ssh-rsa";
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+ "rsa-sha2-512-cert-v01@openssh.com,"
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+ "rsa-sha2-256-cert-v01@openssh.com,"
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+ "ssh-rsa-cert-v01@openssh.com" :
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+ "rsa-sha2-512,"
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+ "rsa-sha2-256,"
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+ "ssh-rsa";
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break;
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case KT_ED25519:
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myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS] = get_cert ?
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