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Diffstat (limited to 'src/libs/7zip/win/DOC/Methods.txt')
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diff --git a/src/libs/7zip/win/DOC/Methods.txt b/src/libs/7zip/win/DOC/Methods.txt new file mode 100644 index 000000000..f52e7c315 --- /dev/null +++ b/src/libs/7zip/win/DOC/Methods.txt @@ -0,0 +1,152 @@ +7-Zip method IDs (9.18) +----------------------- + +Each compression or crypto method in 7z has unique binary value (ID). +The length of ID in bytes is arbitrary but it can not exceed 63 bits (8 bytes). + +If you want to add some new ID, you have two ways: +1) Write request for allocating IDs to 7-zip developers. +2) Generate 8-bytes ID: + + 3F ZZ ZZ ZZ ZZ ZZ MM MM + + 3F - Prefix for random IDs (1 byte) + ZZ ZZ ZZ ZZ ZZ - Developer ID (5 bytes). Use real random bytes. + + MM MM - Method ID (2 bytes) + + You can notify 7-Zip developers about your Developer ID / Method ID. + + Note: Use new ID only if old codec can not decode data encoded with new version. + + +List of defined IDs +------------------- + +00 - Copy + +03 - Delta +04 - x86 (BCJ) +05 - PPC (Big Endian) +06 - IA64 +07 - ARM (little endian) +08 - ARM Thumb (little endian) +09 - SPARC +21 - LZMA2 + +02.. - Common + 03 Swap + - 2 Swap2 + - 4 Swap4 + +03.. - 7z + 01 - LZMA + 01 - Version + + 03 - Branch + 01 - x86 + 03 - BCJ + 1B - BCJ2 + 02 - PPC + 05 - PPC (Big Endian) + 03 - Alpha + 01 - Alpha + 04 - IA64 + 01 - IA64 + 05 - ARM + 01 - ARM + 06 - M68 + 05 - M68 (Big Endian) + 07 - ARM Thumb + 01 - ARMT + 08 - SPARC + 05 - SPARC + + 04 - PPMD + 01 - Version + + 7F - + 01 - experimental methods. + + +04.. - Misc + 00 - Reserved + 01 - Zip + 00 - Copy (not used). Use {00} instead + 01 - Shrink + 06 - Implode + 08 - Deflate + 09 - Deflate64 + 10 - Imploding + 12 - BZip2 (not used). Use {04 02 02} instead + 14 - LZMA + 60 - Jpeg + 61 - WavPack + 62 - PPMd + 63 - wzAES + 02 - BZip + 02 - BZip2 + 03 - Rar + 01 - Rar15 + 02 - Rar20 + 03 - Rar29 + 04 - Arj + 01 - Arj (1,2,3) + 02 - Arj 4 + 05 - Z + 06 - Lzh + 07 - Reserved for 7z + 08 - Cab + 09 - NSIS + 01 - DeflateNSIS + 02 - BZip2NSIS + + +06.. - Crypto + 00 - + 01 - AES + 0x - AES-128 + 4x - AES-192 + 8x - AES-256 + Cx - AES + + x0 - ECB + x1 - CBC + x2 - CFB + x3 - OFB + + 07 - Reserved + 0F - Reserved + + F0 - Misc Ciphers (Real Ciphers without hashing algo) + + F1 - Misc Ciphers (Combine) + 01 - Zip + 01 - Main Zip crypto algo + 03 - RAR + 02 - + 03 - Rar29 AES-128 + (modified SHA-1) + 07 - 7z + 01 - AES-256 + SHA-256 + +07.. - Hash (subject to change) + 00 - + 01 - CRC + 02 - SHA-1 + 03 - SHA-256 + 04 - SHA-384 + 05 - SHA-512 + + F0 - Misc Hash + + F1 - Misc + 03 - RAR + 03 - Rar29 Password Hashing (modified SHA1) + 07 - 7z + 01 - SHA-256 Password Hashing + + + + +--- +End of document |