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mirror of synced 2024-12-03 19:57:20 +01:00
ImHex/plugins/libimhex/include/hex/helpers/crypto.hpp
RADICS Áron a6b8597f5a
Fix CRC and hash calculations (#321)
* Fix CRC calculation, add more CRC parameters

Use the Boost CRC module to calculate the CRC values.
Add options for final xor value, reflectIn and reflectOut.
Fixes #320

* Cleanup Hash view combo box, add CRC8

* Use offset/size consistently

* Cleanup: unify processing data by chunks

* Change CRC algorithm back, drop boost dependency

This is mostly the original algorithm, with a few fixes and small
additions (support for reflect In / Out, final XOR value).

* Use size_t for file read size consistently
2021-10-26 17:21:48 +02:00

59 lines
2.1 KiB
C++

#pragma once
#include <hex.hpp>
#include <array>
#include <optional>
#include <string>
#include <vector>
namespace hex::prv { class Provider; }
namespace hex::crypt {
void initialize();
void exit();
u16 crc8(prv::Provider* &data, u64 offset, size_t size, u32 polynomial, u32 init, u32 xorout, bool reflectIn, bool reflectOut);
u16 crc16(prv::Provider* &data, u64 offset, size_t size, u32 polynomial, u32 init, u32 xorout, bool reflectIn, bool reflectOut);
u32 crc32(prv::Provider* &data, u64 offset, size_t size, u32 polynomial, u32 init, u32 xorout, bool reflectIn, bool reflectOut);
std::array<u8, 16> md5(prv::Provider* &data, u64 offset, size_t size);
std::array<u8, 20> sha1(prv::Provider* &data, u64 offset, size_t size);
std::array<u8, 28> sha224(prv::Provider* &data, u64 offset, size_t size);
std::array<u8, 32> sha256(prv::Provider* &data, u64 offset, size_t size);
std::array<u8, 48> sha384(prv::Provider* &data, u64 offset, size_t size);
std::array<u8, 64> sha512(prv::Provider* &data, u64 offset, size_t size);
std::array<u8, 16> md5(const std::vector<u8> &data);
std::array<u8, 20> sha1(const std::vector<u8> &data);
std::array<u8, 28> sha224(const std::vector<u8> &data);
std::array<u8, 32> sha256(const std::vector<u8> &data);
std::array<u8, 48> sha384(const std::vector<u8> &data);
std::array<u8, 64> sha512(const std::vector<u8> &data);
std::vector<u8> decode64(const std::vector<u8> &input);
std::vector<u8> encode64(const std::vector<u8> &input);
std::vector<u8> decode16(const std::string &input);
std::string encode16(const std::vector<u8> &input);
enum class AESMode : u8 {
ECB = 0,
CBC = 1,
CFB128 = 2,
CTR = 3,
GCM = 4,
CCM = 5,
OFB = 6,
XTS = 7
};
enum class KeyLength : u8 {
Key128Bits = 0,
Key192Bits = 1,
Key256Bits = 2
};
std::vector<u8> aesDecrypt(AESMode mode, KeyLength keyLength, const std::vector<u8> &key, std::array<u8, 8> nonce, std::array<u8, 8> iv, const std::vector<u8> &input);
}