crypto/hkdf.h

   1 // Copyright 2013 The Chromium Authors
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CRYPTO_HKDF_H_
   6 #define CRYPTO_HKDF_H_
   7
   8 #include <stddef.h>
   9
  10 #include <string>
  11 #include <string_view>
  12
  13 #include "base/containers/span.h"
  14 #include "crypto/crypto_export.h"
  15
  16 namespace crypto {
  17
  18 CRYPTO_EXPORT
  19 std::string HkdfSha256(std::string_view secret,
  20                        std::string_view salt,
  21                        std::string_view info,
  22                        size_t derived_key_size);
  23
  24 CRYPTO_EXPORT
  25 std::vector<uint8_t> HkdfSha256(base::span<const uint8_t> secret,
  26                                 base::span<const uint8_t> salt,
  27                                 base::span<const uint8_t> info,
  28                                 size_t derived_key_size);
  29
  30 }  // namespace crypto
  31
  32 #endif  // CRYPTO_HKDF_H_