From cb010744cc98f651b1029bb09efa986eb54e4ccf Mon Sep 17 00:00:00 2001 From: "djm@openbsd.org" Date: Sun, 8 May 2022 22:58:35 +0000 Subject: [PATCH] upstream: improve error message when 'ssh-keygen -Y sign' is unable to load a private key; bz3429, reported by Adam Szkoda ok dtucker@ OpenBSD-Commit-ID: bb57b285e67bea536ef81b1055467be2fc380e74 --- ssh-keygen.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/ssh-keygen.c b/ssh-keygen.c index d62fab3e8..dd61be8a0 100644 --- a/ssh-keygen.c +++ b/ssh-keygen.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-keygen.c,v 1.450 2022/03/18 02:32:22 djm Exp $ */ +/* $OpenBSD: ssh-keygen.c,v 1.451 2022/05/08 22:58:35 djm Exp $ */ /* * Author: Tatu Ylonen * Copyright (c) 1994 Tatu Ylonen , Espoo, Finland @@ -2462,7 +2462,8 @@ load_sign_key(const char *keypath, const struct sshkey *pubkey) char *privpath = xstrdup(keypath); static const char * const suffixes[] = { "-cert.pub", ".pub", NULL }; struct sshkey *ret = NULL, *privkey = NULL; - int r; + int r, waspub = 0; + struct stat st; /* * If passed a public key filename, then try to locate the corresponding @@ -2477,11 +2478,17 @@ load_sign_key(const char *keypath, const struct sshkey *pubkey) privpath[plen - slen] = '\0'; debug_f("%s looks like a public key, using private key " "path %s instead", keypath, privpath); + waspub = 1; } - if ((privkey = load_identity(privpath, NULL)) == NULL) { - error("Couldn't load identity %s", keypath); - goto done; - } + if (waspub && stat(privpath, &st) != 0 && errno == ENOENT) + fatal("No private key found for public key \"%s\"", keypath); + if ((r = sshkey_load_private(privpath, "", &privkey, NULL)) != 0 && + (r != SSH_ERR_KEY_WRONG_PASSPHRASE)) { + debug_fr(r, "load private key \"%s\"", privpath); + fatal("No private key found for \"%s\"", privpath); + } else if (privkey == NULL) + privkey = load_identity(privpath, NULL); + if (!sshkey_equal_public(pubkey, privkey)) { error("Public key %s doesn't match private %s", keypath, privpath);