| // Copyright 2020 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SERVICES_NETWORK_TRUST_TOKENS_SIGNED_REDEMPTION_RECORD_SERIALIZATION_H_ |
| #define SERVICES_NETWORK_TRUST_TOKENS_SIGNED_REDEMPTION_RECORD_SERIALIZATION_H_ |
| |
| #include <string> |
| |
| #include "base/containers/span.h" |
| #include "base/optional.h" |
| #include "base/strings/string_piece_forward.h" |
| #include "base/time/time.h" |
| |
| namespace network { |
| |
| // The Trust Tokens design doc [1] defines a signed redemption record (SRR) as a |
| // Structured Headers Draft 15 dictionary with two "byte sequence"-typed fields, |
| // a body and a signature. This method constructs such a dictionary, given the |
| // body and signature's contents as bytestrings. |
| // |
| // Returns nullopt on internal serialization error in the Structured Headers |
| // library. |
| // |
| // [1] |
| // https://docs.google.com/document/d/1TNnya6B8pyomDK2F1R9CL3dY10OAmqWlnCxsWyOBDVQ/edit#heading=h.7mkzvhpqb8l5 |
| base::Optional<std::string> ConstructSignedRedemptionRecord( |
| base::span<const uint8_t> body, |
| base::span<const uint8_t> signature); |
| |
| // Parses a Trust Tokens Signed Redemption Record (SRR), a Structured Headers |
| // Draft 15 dictionary, into its constituent "body" and "signature" elements, |
| // placing them in the output parameters. |
| // |
| // Each output argument may be nullptr, denoting a lack of interest in the |
| // corresponding field. (The entire record might still be parsed.) |
| // |
| // Returns true on parse success and false on parse error. |
| bool ParseTrustTokenSignedRedemptionRecord( |
| base::StringPiece record, |
| std::string* body_out = nullptr, |
| std::string* signature_out = nullptr); |
| |
| } // namespace network |
| |
| #endif // SERVICES_NETWORK_TRUST_TOKENS_SIGNED_REDEMPTION_RECORD_SERIALIZATION_H_ |
