ec_public_key.h

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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the Apache 2.0 License.
#pragma once
 
#include "ccf/crypto/curve.h"
#include "ccf/crypto/hash_bytes.h"
#include "ccf/crypto/jwk.h"
#include "ccf/crypto/pem.h"
#include "ccf/crypto/san.h"
 
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
 
namespace ccf::crypto
{
  class ECPublicKey
  {
  public:
    virtual ~ECPublicKey() = default;
 
    virtual bool verify(
      const uint8_t* contents,
      size_t contents_size,
      const uint8_t* sig,
      size_t sig_size,
      MDType md_type,
      HashBytes& bytes) = 0;
 
    bool verify(
      const uint8_t* contents,
      size_t contents_size,
      const uint8_t* sig,
      size_t sig_size,
      MDType md_type = MDType::NONE)
    {
      HashBytes hash;
      return verify(contents, contents_size, sig, sig_size, md_type, hash);
    }
 
    virtual bool verify(
      const std::vector<uint8_t>& contents,
      const std::vector<uint8_t>& signature)
    {
      return verify(
        contents.data(), contents.size(), signature.data(), signature.size());
    }
 
    virtual bool verify_hash(
      const std::vector<uint8_t>& hash,
      const std::vector<uint8_t>& signature,
      MDType md_type)
    {
      return verify_hash(
        hash.data(), hash.size(), signature.data(), signature.size(), md_type);
    }
 
    virtual bool verify_hash(
      const uint8_t* hash,
      size_t hash_size,
      const uint8_t* sig,
      size_t sig_size,
      MDType md_type) = 0;
 
    [[nodiscard]] virtual Pem public_key_pem() const = 0;
 
    [[nodiscard]] virtual std::vector<uint8_t> public_key_der() const = 0;
 
    [[nodiscard]] virtual std::vector<uint8_t> public_key_raw() const = 0;
 
    [[nodiscard]] virtual CurveID get_curve_id() const = 0;
 
    struct Coordinates
    {
      std::vector<uint8_t> x;
      std::vector<uint8_t> y;
    };
 
    [[nodiscard]] virtual Coordinates coordinates() const = 0;
 
    [[nodiscard]] virtual JsonWebKeyECPublic public_key_jwk(
      const std::optional<std::string>& kid = std::nullopt) const = 0;
  };
 
  using ECPublicKeyPtr = std::shared_ptr<ECPublicKey>;
 
  ECPublicKeyPtr make_ec_public_key(const Pem& pem);
 
  ECPublicKeyPtr make_ec_public_key(const std::vector<uint8_t>& der);
 
  ECPublicKeyPtr make_ec_public_key(const JsonWebKeyECPublic& jwk);
}