зеркало из https://github.com/mozilla/pjs.git
147 строки
2.8 KiB
Plaintext
147 строки
2.8 KiB
Plaintext
7-Zip method IDs (9.04)
|
|
-----------------------
|
|
|
|
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
|
|
12 - BZip2 (not used). Use {04 02 02} instead
|
|
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
|