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Diffstat (limited to 'README')
| -rw-r--r-- | README | 37 |
1 files changed, 6 insertions, 31 deletions
@@ -7,7 +7,7 @@ lzip works. Lzd is written in C++. The source code of lzd is used in the lzip manual as a reference decompressor in the description of the lzip file format. Reading the lzip manual will help you understand the source code. Lzd is compliant with the -lzip specification; it verifies the 3 integrity factors. +lzip specification; it checks the 3 integrity factors. The source code of lzd is also used as a reference in the description of the media type 'application/lzip'. @@ -18,33 +18,9 @@ ignores) the option '-d' for compatibility with other lzip tools. In particular, accepting the option '-d' allows lzd to be used as argument to the option '--lz' of the tools from the zutils package. -Lzd will correctly decompress the concatenation of two or more compressed +Lzd correctly decompresses the concatenation of two or more compressed files. The result is the concatenation of the corresponding decompressed -data. Integrity of such concatenated compressed input is also verified. - -The lzip file format is designed for data sharing and long-term archiving, -taking into account both data integrity and decoder availability: - - * The lzip format provides very safe integrity checking and some data - recovery means. The program lziprecover can repair bit flip errors - (one of the most common forms of data corruption) in lzip files, and - provides data recovery capabilities, including error-checked merging - of damaged copies of a file. - - * The lzip format is as simple as possible (but not simpler). The lzip - manual provides the source code of a simple decompressor along with a - detailed explanation of how it works, so that with the only help of the - lzip manual it would be possible for a digital archaeologist to extract - the data from a lzip file long after quantum computers eventually - render LZMA obsolete. - - * Additionally the lzip reference implementation is copylefted, which - guarantees that it will remain free forever. - -A nice feature of the lzip format is that a corrupt byte is easier to repair -the nearer it is from the beginning of the file. Therefore, with the help of -lziprecover, losing an entire archive just because of a corrupt byte near -the beginning is a thing of the past. +data. Integrity of such concatenated compressed input is also checked. The ideas embodied in lzd are due to (at least) the following people: Abraham Lempel and Jacob Ziv (for the LZ algorithm), Andrei Markov (for the @@ -52,11 +28,10 @@ definition of Markov chains), G.N.N. Martin (for the definition of range encoding), and Igor Pavlov (for putting all the above together in LZMA). -Copyright (C) 2013-2022 Antonio Diaz Diaz. +Copyright (C) 2013-2024 Antonio Diaz Diaz. This file is free documentation: you have unlimited permission to copy, distribute, and modify it. -The file Makefile.in is a data file used by configure to produce the -Makefile. It has the same copyright owner and permissions that configure -itself. +The file Makefile.in is a data file used by configure to produce the Makefile. +It has the same copyright owner and permissions that configure itself. |