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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdint.h>
#include <memory>
#include "components/webcrypto/algorithms/rsa.h"
#include "components/webcrypto/algorithms/rsa_sign.h"
#include "components/webcrypto/status.h"
#include "third_party/blink/public/platform/web_crypto_algorithm_params.h"
namespace webcrypto {
namespace {
class RsaPssImplementation : public RsaHashedAlgorithm {
public:
RsaPssImplementation()
: RsaHashedAlgorithm(blink::kWebCryptoKeyUsageVerify,
blink::kWebCryptoKeyUsageSign) {}
const char* GetJwkAlgorithm(
const blink::WebCryptoAlgorithmId hash) const override {
switch (hash) {
case blink::kWebCryptoAlgorithmIdSha1:
return "PS1";
case blink::kWebCryptoAlgorithmIdSha256:
return "PS256";
case blink::kWebCryptoAlgorithmIdSha384:
return "PS384";
case blink::kWebCryptoAlgorithmIdSha512:
return "PS512";
default:
return nullptr;
}
}
Status Sign(const blink::WebCryptoAlgorithm& algorithm,
const blink::WebCryptoKey& key,
base::span<const uint8_t> data,
std::vector<uint8_t>* buffer) const override {
return RsaSign(key, algorithm.RsaPssParams()->SaltLengthBytes(), data,
buffer);
}
Status Verify(const blink::WebCryptoAlgorithm& algorithm,
const blink::WebCryptoKey& key,
base::span<const uint8_t> signature,
base::span<const uint8_t> data,
bool* signature_match) const override {
return RsaVerify(key, algorithm.RsaPssParams()->SaltLengthBytes(),
signature, data, signature_match);
}
};
} // namespace
std::unique_ptr<AlgorithmImplementation> CreateRsaPssImplementation() {
return std::make_unique<RsaPssImplementation>();
}
} // namespace webcrypto
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