mirror of
https://github.com/ManchildProductions/UXP-Fixed.git
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Moonchild
89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include "pkix/pkixutil.h"
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namespace mozilla { namespace pkix {
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Result
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DigestSignedData(TrustDomain& trustDomain,
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const der::SignedDataWithSignature& signedData,
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/*out*/ uint8_t(&digestBuf)[MAX_DIGEST_SIZE_IN_BYTES],
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/*out*/ der::PublicKeyAlgorithm& publicKeyAlg,
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/*out*/ SignedDigest& signedDigest)
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{
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Reader signatureAlg(signedData.algorithm);
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Result rv = der::SignatureAlgorithmIdentifierValue(
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signatureAlg, publicKeyAlg, signedDigest.digestAlgorithm);
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if (rv != Success) {
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return rv;
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}
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if (!signatureAlg.AtEnd()) {
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return Result::ERROR_BAD_DER;
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}
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size_t digestLen;
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switch (signedDigest.digestAlgorithm) {
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case DigestAlgorithm::sha512: digestLen = 512 / 8; break;
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case DigestAlgorithm::sha384: digestLen = 384 / 8; break;
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case DigestAlgorithm::sha256: digestLen = 256 / 8; break;
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case DigestAlgorithm::sha1: digestLen = 160 / 8; break;
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MOZILLA_PKIX_UNREACHABLE_DEFAULT_ENUM
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}
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assert(digestLen <= sizeof(digestBuf));
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rv = trustDomain.DigestBuf(signedData.data, signedDigest.digestAlgorithm,
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digestBuf, digestLen);
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if (rv != Success) {
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return rv;
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}
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rv = signedDigest.digest.Init(digestBuf, digestLen);
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if (rv != Success) {
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return rv;
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}
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return signedDigest.signature.Init(signedData.signature);
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}
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Result
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VerifySignedDigest(TrustDomain& trustDomain,
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der::PublicKeyAlgorithm publicKeyAlg,
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const SignedDigest& signedDigest,
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Input signerSubjectPublicKeyInfo)
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{
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switch (publicKeyAlg) {
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case der::PublicKeyAlgorithm::ECDSA:
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return trustDomain.VerifyECDSASignedDigest(signedDigest,
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signerSubjectPublicKeyInfo);
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case der::PublicKeyAlgorithm::RSA_PKCS1:
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return trustDomain.VerifyRSAPKCS1SignedDigest(signedDigest,
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signerSubjectPublicKeyInfo);
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case der::PublicKeyAlgorithm::Uninitialized:
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assert(false);
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return Result::FATAL_ERROR_LIBRARY_FAILURE;
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MOZILLA_PKIX_UNREACHABLE_DEFAULT_ENUM
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}
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}
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Result
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VerifySignedData(TrustDomain& trustDomain,
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const der::SignedDataWithSignature& signedData,
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Input signerSubjectPublicKeyInfo)
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{
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uint8_t digestBuf[MAX_DIGEST_SIZE_IN_BYTES];
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der::PublicKeyAlgorithm publicKeyAlg;
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SignedDigest signedDigest;
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Result rv = DigestSignedData(trustDomain, signedData, digestBuf,
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publicKeyAlg, signedDigest);
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if (rv != Success) {
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return rv;
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}
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return VerifySignedDigest(trustDomain, publicKeyAlg, signedDigest,
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signerSubjectPublicKeyInfo);
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}
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} } // namespace mozilla::pkix
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