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Diffstat (limited to 'DOC/Methods.txt')
| -rw-r--r-- | DOC/Methods.txt | 127 |
1 files changed, 76 insertions, 51 deletions
diff --git a/DOC/Methods.txt b/DOC/Methods.txt index ede83041..7eb6c6bf 100644 --- a/DOC/Methods.txt +++ b/DOC/Methods.txt @@ -1,12 +1,17 @@ -7-Zip method IDs (9.24) ------------------------ +7-Zip method IDs for 7z and xz archives +--------------------------------------- -Each compression or crypto method in 7z has unique binary value (ID). +Version: 15.00 +Date: 2015-04-01 + +Each compression or crypto method in 7z is associated with unique binary value (ID). The length of ID in bytes is arbitrary but it can not exceed 63 bits (8 bytes). +xz and 7z formats use same ID map. + 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: + 1) Write request for allocating IDs to 7-Zip developers. + 2) Generate 8-bytes ID: 3F ZZ ZZ ZZ ZZ ZZ MM MM @@ -26,87 +31,104 @@ List of defined IDs 00 - Copy 03 - Delta -04 - x86 (BCJ) -05 - PPC (Big Endian) +04 - BCJ (x86) +05 - PPC (big-endian) 06 - IA64 -07 - ARM (little endian) -08 - ARM Thumb (little endian) +07 - ARM (little-endian) +08 - ARMT (little-endian) 09 - SPARC + 21 - LZMA2 02.. - Common - 03 Swap + 03 [Swap] - 2 Swap2 - 4 Swap4 03.. - 7z - 01 - LZMA - 01 - Version + 01 - + 01 - LZMA - 03 - Branch - 01 - x86 + 03 - [Branch Codecs] + 01 - [x86 Codecs] 03 - BCJ - 1B - BCJ2 - 02 - PPC - 05 - PPC (Big Endian) - 03 - Alpha + 1B - BCJ2 (4 packed streams) + 02 - + 05 - PPC (big-endian) + 03 - 01 - Alpha - 04 - IA64 + 04 - 01 - IA64 - 05 - ARM - 01 - ARM - 06 - M68 - 05 - M68 (Big Endian) - 07 - ARM Thumb - 01 - ARMT - 08 - SPARC + 05 - + 01 - ARM (little-endian) + 06 - + 05 - M68 (big-endian) + 07 - + 01 - ARMT (little-endian) + 08 - 05 - SPARC - 04 - PPMD - 01 - Version + 04 - + 01 - PPMD 7F - - 01 - experimental methods. + 01 - experimental method. -04.. - Misc +04.. - Misc codecs + 00 - Reserved - 01 - Zip - 00 - Copy (not used). Use {00} instead + + 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 + 12 - BZip2 (not used. Use {040202} instead) + 14 - LZMA (LZMA-zip) + 5F - xz 60 - Jpeg 61 - WavPack - 62 - PPMd + 62 - PPMd (PPMd-zip) 63 - wzAES - 02 - BZip + + 02 - 02 - BZip2 - 03 - Rar + + 03 - [Rar] 01 - Rar15 02 - Rar20 03 - Rar29 - 04 - Arj - 01 - Arj (1,2,3) - 02 - Arj 4 - 05 - Z - 06 - Lzh + + 04 - [Arj] + 01 - Arj(1,2,3) + 02 - Arj4 + + 05 - [Z] + + 06 - [Lzh] + 07 - Reserved for 7z - 08 - Cab - 09 - NSIS + + 08 - [Cab] + + 09 - [NSIS] 01 - DeflateNSIS 02 - BZip2NSIS + F7 - External codecs (that are not included to 7-Zip) + + 0x xx - reserved + 10 xx - reserved + 06.. - Crypto F0 - Ciphers without hashing algo - 01 - AES + 01 - [AES] 0x - AES-128 4x - AES-192 8x - AES-256 @@ -119,13 +141,16 @@ List of defined IDs x4 - CTR F1 - Combine Ciphers - 01 - Zip - 01 - Main Zip crypto algo - 03 - RAR + + 01 - [Zip] + 01 - ZipCrypto (Main Zip crypto algo) + + 03 - [RAR] 02 - - 03 - Rar29 AES-128 + (modified SHA-1) - 07 - 7z - 01 - AES-256 + SHA-256 + 03 - Rar29AES (AES-128 + modified SHA-1) + + 07 - [7z] + 01 - 7zAES (AES-256 + SHA-256) --- |