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upstream: use ECDSA_SIG_set0() instead of poking signature values into 

structure directly; the latter works on LibreSSL but not on OpenSSL. From
portable.

OpenBSD-Commit-ID: 5b22a1919d9cee907d3f8a029167f70a481891c6
This commit is contained in:
djm@openbsd.org 2019-01-21 00:47:34 +00:00 committed by Damien Miller
parent 5de6ac2bad
commit 632976418d
1 changed files with 14 additions and 3 deletions
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17
ssh-pkcs11.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: ssh-pkcs11.c,v 1.36 2019/01/20 23:12:35 djm Exp $ */
/* $OpenBSD: ssh-pkcs11.c,v 1.37 2019/01/21 00:47:34 djm Exp $ */
/*
* Copyright (c) 2010 Markus Friedl. All rights reserved.
* Copyright (c) 2014 Pedro Martelletto. All rights reserved.
@ -420,6 +420,7 @@ ecdsa_do_sign(const unsigned char *dgst, int dgst_len, const BIGNUM *inv,
CK_RV rv;
ECDSA_SIG *ret = NULL;
u_char *sig;
BIGNUM *r = NULL, *s = NULL;
if ((k11 = EC_KEY_get_ex_data(ec, 0)) == NULL) {
ossl_error("EC_KEY_get_key_method_data failed for ec");
@ -452,14 +453,24 @@ ecdsa_do_sign(const unsigned char *dgst, int dgst_len, const BIGNUM *inv,
error("ECDSA_SIG_new failed");
goto done;
}
if (BN_bin2bn(sig, bnlen, ret->r) == NULL ||
BN_bin2bn(sig+bnlen, bnlen, ret->s) == NULL) {
if ((r = BN_bin2bn(sig, bnlen, NULL)) == NULL ||
(s = BN_bin2bn(sig+bnlen, bnlen, NULL)) == NULL) {
ossl_error("d2i_ECDSA_SIG failed");
ECDSA_SIG_free(ret);
ret = NULL;
goto done;
}
if (!ECDSA_SIG_set0(ret, r, s)) {
error("%s: ECDSA_SIG_set0 failed", __func__);
ECDSA_SIG_free(ret);
ret = NULL;
goto done;
}
r = s = NULL; /* now owned by ret */
/* success */
done:
BN_free(r);
BN_free(s);
free(sig);
return (ret);