gecko/security/pkix/lib/pkixkey.cpp
David Keeler 676eaf13b4 bug 985201 - rename insanity::pkix to mozilla::pkix r=cviecco r=briansmith
--HG--
rename : security/insanity/include/insanity/ScopedPtr.h => security/pkix/include/pkix/ScopedPtr.h
rename : security/insanity/include/insanity/bind.h => security/pkix/include/pkix/bind.h
rename : security/insanity/include/insanity/nullptr.h => security/pkix/include/pkix/nullptr.h
rename : security/insanity/include/insanity/pkix.h => security/pkix/include/pkix/pkix.h
rename : security/insanity/include/insanity/pkixtypes.h => security/pkix/include/pkix/pkixtypes.h
rename : security/insanity/lib/pkixbind.cpp => security/pkix/lib/pkixbind.cpp
rename : security/insanity/lib/pkixbuild.cpp => security/pkix/lib/pkixbuild.cpp
rename : security/insanity/lib/pkixcheck.cpp => security/pkix/lib/pkixcheck.cpp
rename : security/insanity/lib/pkixcheck.h => security/pkix/lib/pkixcheck.h
rename : security/insanity/lib/pkixder.cpp => security/pkix/lib/pkixder.cpp
rename : security/insanity/lib/pkixder.h => security/pkix/lib/pkixder.h
rename : security/insanity/lib/pkixkey.cpp => security/pkix/lib/pkixkey.cpp
rename : security/insanity/lib/pkixocsp.cpp => security/pkix/lib/pkixocsp.cpp
rename : security/insanity/lib/pkixutil.h => security/pkix/lib/pkixutil.h
rename : security/insanity/moz.build => security/pkix/moz.build
rename : security/insanity/test/lib/moz.build => security/pkix/test/lib/moz.build
rename : security/insanity/test/lib/pkixtestutil.cpp => security/pkix/test/lib/pkixtestutil.cpp
rename : security/insanity/test/lib/pkixtestutil.h => security/pkix/test/lib/pkixtestutil.h
2014-03-20 14:29:21 -07:00

90 lines
3.1 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* Copyright 2013 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "pkix/pkix.h"
#include <limits>
#include <stdint.h>
#include "cert.h"
#include "cryptohi.h"
#include "prerror.h"
#include "secerr.h"
namespace mozilla { namespace pkix {
SECStatus
VerifySignedData(const CERTSignedData* sd, const CERTCertificate* cert,
void* pkcs11PinArg)
{
if (!sd || !sd->data.data || !sd->signatureAlgorithm.algorithm.data ||
!sd->signature.data || !cert) {
PR_NOT_REACHED("invalid args to VerifySignedData");
PR_SetError(SEC_ERROR_INVALID_ARGS, 0);
return SECFailure;
}
// See bug 921585.
if (sd->data.len > static_cast<unsigned int>(std::numeric_limits<int>::max())) {
PR_SetError(SEC_ERROR_INVALID_ARGS, 0);
return SECFailure;
}
// convert sig->len from bit counts to byte count.
SECItem sig = sd->signature;
DER_ConvertBitString(&sig);
// Use SECKEY_ExtractPublicKey instead of CERT_ExtractPublicKey because
// CERT_ExtractPublicKey would try to do (EC)DSA parameter inheritance, using
// the classic (wrong) NSS path building logic. We intentionally do not
// support parameter inheritance.
ScopedSECKEYPublicKey
pubKey(SECKEY_ExtractPublicKey(&cert->subjectPublicKeyInfo));
if (!pubKey) {
return SECFailure;
}
SECOidTag hashAlg;
if (VFY_VerifyDataWithAlgorithmID(sd->data.data, static_cast<int>(sd->data.len),
pubKey.get(), &sig, &sd->signatureAlgorithm,
&hashAlg, pkcs11PinArg) != SECSuccess) {
return SECFailure;
}
// TODO: Ideally, we would do this check before we call
// VFY_VerifyDataWithAlgorithmID. But, VFY_VerifyDataWithAlgorithmID gives us
// the hash algorithm so it is more convenient to do things in this order.
uint32_t policy;
if (NSS_GetAlgorithmPolicy(hashAlg, &policy) != SECSuccess) {
return SECFailure;
}
// XXX: I'm not sure why there isn't NSS_USE_ALG_IN_SSL_SIGNATURE, but there
// isn't. Since we don't know the context in which we're being called, be as
// strict as we can be given the NSS API that is available.
static const uint32_t requiredPolicy = NSS_USE_ALG_IN_CERT_SIGNATURE |
NSS_USE_ALG_IN_CMS_SIGNATURE;
if ((policy & requiredPolicy) != requiredPolicy) {
PR_SetError(SEC_ERROR_CERT_SIGNATURE_ALGORITHM_DISABLED, 0);
return SECFailure;
}
return SECSuccess;
}
} } // namespace mozilla::pkix