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827db695b2
This fix differs from the proposal in #368 because the signature
of pki_crl::sign() changed after the 2.4.0 release.
However, I was able to increase the bug impact!
Now it crashed instead of only throwing an error! :-)
The signature of the pki_crl::sign() method changed with
commit 61fa66b129, but C++
"outsmarted" me and automatically transformed the EVP_MD == nullptr
into the digest::constructor(EVP_MD) which crashed on the nullptr.
75 lines
1.3 KiB
C++
75 lines
1.3 KiB
C++
/* vi: set sw=4 ts=4:
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*
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* Copyright (C) 2021 Christian Hohnstaedt.
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*
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* All rights reserved.
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*/
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#include "func.h"
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#include "digest.h"
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#include "lib/base.h"
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#include <QList>
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#include <QDebug>
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const QList<int> digest::all_digests(
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{ NID_md5, NID_ripemd160, NID_sha1,
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NID_sha224, NID_sha256, NID_sha384, NID_sha512
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});
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int digest::default_md(NID_sha256);
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digest::digest(int nid) : md_nid(nid)
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{
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}
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digest::digest(const EVP_MD *md) : md_nid(default_md)
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{
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if (!md)
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return;
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if (!OBJ_find_sigid_algs(EVP_MD_type(md), &md_nid, NULL))
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md_nid = EVP_MD_type(md);
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}
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digest::digest(const QString &name) : md_nid(default_md)
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{
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QString s(name);
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// Workaround for Ed25519
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if (s.isEmpty()) {
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md_nid = NID_undef;
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return;
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}
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md_nid = OBJ_txt2nid(CCHAR(s.remove(QChar(' '))));
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ign_openssl_error();
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}
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bool digest::isInsecure() const
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{
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switch (md_nid) {
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case NID_md5:
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case NID_ripemd160:
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case NID_sha1:
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return true;
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}
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return false;
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}
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const EVP_MD *digest::MD() const
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{
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return md_nid == NID_undef ? NULL : EVP_get_digestbynid(md_nid);
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}
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QString digest::name() const
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{
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return QString(md_nid == NID_undef ? "" : OBJ_nid2sn(md_nid));
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}
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const digest digest::getDefault()
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{
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return digest(default_md);
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}
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void digest::setDefault(const QString &def)
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{
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default_md = digest(def).md_nid;
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}
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