48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
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#pragma once
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#include "keys.hpp"
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#include "signed_data.hpp"
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#include <vanetza/common/byte_buffer.hpp>
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#include <vanetza/security/hash_algorithm.hpp>
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#include <cstdint>
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namespace vanetza
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{
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namespace pki
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{
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class Certificate;
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class SecurityModule;
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using security::HashAlgorithm;
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// TS 103 097 protocol version that we emit on every constructed EtsiTs103097Data.
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inline constexpr std::uint8_t ieee1609dot2_protocol_version = 3;
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/**
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* Build an EtsiTs103097Data-Signed envelope carrying `payload` as inline
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* `unsecuredData`, signed with `signing_key`. PSID is fixed to SCR.
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*
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* \param signer_cert selects the SignerIdentifier variant per IEEE 1609.2 §5.3.1:
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* nullptr → signer = self (hash of signer is hash of empty string)
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* non-null → signer = digest with HashedId8(cert); hash of signer is hash
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* of the OER-encoded signer certificate.
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*/
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SignedData create_signed(const ByteBuffer& payload, SecurityModule& security,
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const PublicKey& signing_key, HashAlgorithm hash_algo, const Certificate* signer_cert);
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/**
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* Build an EtsiTs103097Data-SignedExternalPayload (TS 102 941 §6.2.3.3.1) used
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* for the EC-signed proof inside an AT request: SignedData with
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* `extDataHash = hash_algo(external_payload)` and no inline data.
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*
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* The same `hash_algo` covers both the external-payload hash placed in
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* extDataHash and the signature hash chain. Other parameters mirror
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* create_signed(); PSID is fixed to SCR.
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*/
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SignedData create_external_signed(const ByteBuffer& external_payload, SecurityModule& security,
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const PublicKey& signing_key, HashAlgorithm hash_algo, const Certificate* signer_cert);
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} // namespace pki
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} // namespace vanetza
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