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104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
// SPDX-License-Identifier: BSD-3-Clause
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// SPDX-FileCopyrightText: 2020-2023 The Monero Project
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#pragma once
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#include <string>
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#include <vector>
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#include <gcrypt.h>
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#include <span.h>
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#include "s_expression.h"
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namespace openpgp
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{
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enum algorithm : uint8_t
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{
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rsa = 1,
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};
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class public_key_rsa
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{
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public:
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public_key_rsa(s_expression expression, size_t bits);
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size_t bits() const;
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const gcry_sexp_t &get() const;
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private:
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s_expression m_expression;
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size_t m_bits;
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};
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class public_key_block : public std::vector<public_key_rsa>
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{
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public:
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public_key_block(const std::string &armored);
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public_key_block(const epee::span<const uint8_t> buffer);
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std::string user_id() const;
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private:
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std::string m_user_id;
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};
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class signature_rsa
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{
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public:
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enum type : uint8_t
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{
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binary_document = 0,
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canonical_text_document = 1,
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};
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signature_rsa(
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uint8_t algorithm,
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std::pair<uint8_t, uint8_t> hash_leftmost_bytes,
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uint8_t hash_algorithm,
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const std::vector<uint8_t> &hashed_data,
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type type,
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s_expression signature,
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uint8_t version);
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static signature_rsa from_armored(const std::string &armored_signed_message);
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static signature_rsa from_base64(const std::string &base64);
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static signature_rsa from_buffer(const epee::span<const uint8_t> input);
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bool verify(const epee::span<const uint8_t> message, const public_key_rsa &public_key) const;
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private:
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s_expression hash_message(const epee::span<const uint8_t> message, size_t public_key_bits) const;
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std::vector<uint8_t> hash_asn_object_id() const;
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s_expression hash_bytes(const epee::span<const uint8_t> message, size_t public_key_bits) const;
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static std::vector<uint8_t> format_hashed_appendix(
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uint8_t algorithm,
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uint8_t hash_algorithm,
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const std::vector<uint8_t> &hashed_data,
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uint8_t type,
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uint8_t version);
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private:
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uint8_t m_hash_algorithm;
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std::pair<uint8_t, uint8_t> m_hash_leftmost_bytes;
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std::vector<uint8_t> m_hashed_appendix;
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s_expression m_signature;
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type m_type;
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};
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class message_armored
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{
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public:
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message_armored(const std::string &message_armored);
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operator epee::span<const uint8_t>() const;
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private:
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std::string m_message;
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};
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} // namespace openpgp
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