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42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef THIRD_PARTY_NEARBY_INTERNAL_CRYPTO_HKDF_H_
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#define THIRD_PARTY_NEARBY_INTERNAL_CRYPTO_HKDF_H_
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#include <stddef.h>
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#include <string>
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#include <vector>
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#include "absl/strings/string_view.h"
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#include "absl/types/span.h"
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#include "internal/crypto/crypto_export.h"
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namespace crypto {
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CRYPTO_EXPORT
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std::string HkdfSha256(absl::string_view secret, absl::string_view salt,
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absl::string_view info, size_t derived_key_size);
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CRYPTO_EXPORT
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std::vector<uint8_t> HkdfSha256(absl::Span<const uint8_t> secret,
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absl::Span<const uint8_t> salt,
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absl::Span<const uint8_t> info,
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size_t derived_key_size);
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} // namespace crypto
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#endif // THIRD_PARTY_NEARBY_INTERNAL_CRYPTO_HKDF_H_
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