repo sync | baa3858 | 2013-07-26 17:53:31 -0700 | [diff] [blame] | 1 | 7-Zip method IDs (9.18)
|
| 2 | -----------------------
|
| 3 |
|
| 4 | Each compression or crypto method in 7z has unique binary value (ID).
|
| 5 | The length of ID in bytes is arbitrary but it can not exceed 63 bits (8 bytes).
|
| 6 |
|
| 7 | If you want to add some new ID, you have two ways:
|
| 8 | 1) Write request for allocating IDs to 7-zip developers.
|
| 9 | 2) Generate 8-bytes ID:
|
| 10 |
|
| 11 | 3F ZZ ZZ ZZ ZZ ZZ MM MM
|
| 12 |
|
| 13 | 3F - Prefix for random IDs (1 byte)
|
| 14 | ZZ ZZ ZZ ZZ ZZ - Developer ID (5 bytes). Use real random bytes.
|
| 15 |
|
| 16 | MM MM - Method ID (2 bytes)
|
| 17 |
|
| 18 | You can notify 7-Zip developers about your Developer ID / Method ID.
|
| 19 |
|
| 20 | Note: Use new ID only if old codec can not decode data encoded with new version.
|
| 21 |
|
| 22 |
|
| 23 | List of defined IDs
|
| 24 | -------------------
|
| 25 |
|
| 26 | 00 - Copy
|
| 27 |
|
| 28 | 03 - Delta
|
| 29 | 04 - x86 (BCJ)
|
| 30 | 05 - PPC (Big Endian)
|
| 31 | 06 - IA64
|
| 32 | 07 - ARM (little endian)
|
| 33 | 08 - ARM Thumb (little endian)
|
| 34 | 09 - SPARC
|
| 35 | 21 - LZMA2
|
| 36 |
|
| 37 | 02.. - Common
|
| 38 | 03 Swap
|
| 39 | - 2 Swap2
|
| 40 | - 4 Swap4
|
| 41 |
|
| 42 | 03.. - 7z
|
| 43 | 01 - LZMA
|
| 44 | 01 - Version
|
| 45 |
|
| 46 | 03 - Branch
|
| 47 | 01 - x86
|
| 48 | 03 - BCJ
|
| 49 | 1B - BCJ2
|
| 50 | 02 - PPC
|
| 51 | 05 - PPC (Big Endian)
|
| 52 | 03 - Alpha
|
| 53 | 01 - Alpha
|
| 54 | 04 - IA64
|
| 55 | 01 - IA64
|
| 56 | 05 - ARM
|
| 57 | 01 - ARM
|
| 58 | 06 - M68
|
| 59 | 05 - M68 (Big Endian)
|
| 60 | 07 - ARM Thumb
|
| 61 | 01 - ARMT
|
| 62 | 08 - SPARC
|
| 63 | 05 - SPARC
|
| 64 |
|
| 65 | 04 - PPMD
|
| 66 | 01 - Version
|
| 67 |
|
| 68 | 7F -
|
| 69 | 01 - experimental methods.
|
| 70 |
|
| 71 |
|
| 72 | 04.. - Misc
|
| 73 | 00 - Reserved
|
| 74 | 01 - Zip
|
| 75 | 00 - Copy (not used). Use {00} instead
|
| 76 | 01 - Shrink
|
| 77 | 06 - Implode
|
| 78 | 08 - Deflate
|
| 79 | 09 - Deflate64
|
| 80 | 10 - Imploding
|
| 81 | 12 - BZip2 (not used). Use {04 02 02} instead
|
| 82 | 14 - LZMA
|
| 83 | 60 - Jpeg
|
| 84 | 61 - WavPack
|
| 85 | 62 - PPMd
|
| 86 | 63 - wzAES
|
| 87 | 02 - BZip
|
| 88 | 02 - BZip2
|
| 89 | 03 - Rar
|
| 90 | 01 - Rar15
|
| 91 | 02 - Rar20
|
| 92 | 03 - Rar29
|
| 93 | 04 - Arj
|
| 94 | 01 - Arj (1,2,3)
|
| 95 | 02 - Arj 4
|
| 96 | 05 - Z
|
| 97 | 06 - Lzh
|
| 98 | 07 - Reserved for 7z
|
| 99 | 08 - Cab
|
| 100 | 09 - NSIS
|
| 101 | 01 - DeflateNSIS
|
| 102 | 02 - BZip2NSIS
|
| 103 |
|
| 104 |
|
| 105 | 06.. - Crypto
|
| 106 | 00 -
|
| 107 | 01 - AES
|
| 108 | 0x - AES-128
|
| 109 | 4x - AES-192
|
| 110 | 8x - AES-256
|
| 111 | Cx - AES
|
| 112 |
|
| 113 | x0 - ECB
|
| 114 | x1 - CBC
|
| 115 | x2 - CFB
|
| 116 | x3 - OFB
|
| 117 |
|
| 118 | 07 - Reserved
|
| 119 | 0F - Reserved
|
| 120 |
|
| 121 | F0 - Misc Ciphers (Real Ciphers without hashing algo)
|
| 122 |
|
| 123 | F1 - Misc Ciphers (Combine)
|
| 124 | 01 - Zip
|
| 125 | 01 - Main Zip crypto algo
|
| 126 | 03 - RAR
|
| 127 | 02 -
|
| 128 | 03 - Rar29 AES-128 + (modified SHA-1)
|
| 129 | 07 - 7z
|
| 130 | 01 - AES-256 + SHA-256
|
| 131 |
|
| 132 | 07.. - Hash (subject to change)
|
| 133 | 00 -
|
| 134 | 01 - CRC
|
| 135 | 02 - SHA-1
|
| 136 | 03 - SHA-256
|
| 137 | 04 - SHA-384
|
| 138 | 05 - SHA-512
|
| 139 |
|
| 140 | F0 - Misc Hash
|
| 141 |
|
| 142 | F1 - Misc
|
| 143 | 03 - RAR
|
| 144 | 03 - Rar29 Password Hashing (modified SHA1)
|
| 145 | 07 - 7z
|
| 146 | 01 - SHA-256 Password Hashing
|
| 147 |
|
| 148 |
|
| 149 |
|
| 150 |
|
| 151 | ---
|
| 152 | End of document
|