98bf280ccd
Batch #1237 by ragnarok-clanker: 0 byte-identical, 2 confirmed by peer review. - fn_18105 myGPack::PakCipher::BuildRoundKeys: logic confirmed by peer review - fn_18096 myGPack::PakCipher::PakCipher: logic confirmed by peer review Peer-reviewed-by: eAthena Reviewed-by: ragnarok-clanker
31 lines
1,021 B
C++
31 lines
1,021 B
C++
#ifndef RAGNAROK_SOURCE_ARCHIVE_PAKCIPHER_H
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#define RAGNAROK_SOURCE_ARCHIVE_PAKCIPHER_H
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#include <cstdint>
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namespace myGPack {
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class PakCipher {
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public:
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PakCipher();
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explicit PakCipher(const std::uint8_t* key);
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~PakCipher();
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int DecodeBlock(int rounds, const std::uint8_t* input, std::uint8_t* output) const;
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int Decode(const std::uint8_t* input, int length, std::uint8_t* output, int* outputLength, int cycle) const;
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int DecodePrefix(const std::uint8_t* input, int length, std::uint8_t* output, int* outputLength) const;
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private:
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/* 0000 */ std::uint8_t m_roundKeys[16][8];
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void BuildRoundKeys(const std::uint8_t* key);
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};
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static_assert(sizeof(PakCipher) == 128);
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std::uint8_t* DerivePakKey(const char* name, std::uint8_t* key);
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int InitialPermutation(std::uint8_t* block);
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int FinalPermutation(std::uint8_t* block);
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int EncodeBlock(int rounds, const std::uint8_t (*roundKeys)[8], std::uint32_t inputLow, std::uint32_t inputHigh, std::uint8_t* output);
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}
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#endif
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