From: zooko Date: Sun, 14 Sep 2008 14:57:38 +0000 (+0530) Subject: doc: update README.txt X-Git-Url: https://git.rkrishnan.org/reliability?a=commitdiff_plain;h=6b11a0d7d7c7eb4fbe725d79156f60e1426fe93e;p=tahoe-lafs%2Fzfec.git doc: update README.txt darcs-hash:7859cafe560f16fb21f0e01d3fa50bd8397a98a1 --- diff --git a/zfec/README.txt b/zfec/README.txt index c916346..6d93007 100644 --- a/zfec/README.txt +++ b/zfec/README.txt @@ -103,21 +103,19 @@ input to the encoding step. * Command-Line Tool -NOTE: the format of the sharefiles was changed in zfec v1.1 to allow K == 1 and -K == M. This change of the format of sharefiles means that zfec >= v1.1 cannot -read sharefiles produced by zfec < v1.1. - The bin/ directory contains two Unix-style, command-line tools "zfec" and "zunfec". Execute "zfec --help" or "zunfec --help" for usage instructions. Note: a Unix-style tool like "zfec" does only one thing -- in this case erasure coding -- and leaves other tasks to other tools. Other Unix-style tools that go -well with zfec include "GNU tar" for archiving multiple files and directories -into one file, "rzip" or "lrzip" for compression, and "GNU Privacy Guard" for -encryption or "sha256sum" for integrity. It is important to do things in order: -first archive, then compress, then either encrypt or sha256sum, then erasure -code. Note that if GNU Privacy Guard is used for privacy, then it will also -ensure integrity, so the use of sha256sum is unnecessary in that case. +well with zfec include "GNU tar" or "7z" a.k.a. "p7zip" for archiving multiple +files and directories into one file, "rzip" for compression, and "GNU Privacy +Guard" for encryption or "sha256sum" for integrity. It is important to do +things in order: first archive, then compress, then either encrypt or sha256sum, +then erasure code. Note that if GNU Privacy Guard is used for privacy, then it +will also ensure integrity, so the use of sha256sum is unnecessary in that case. +Note that if 7z is used for archiving then it also does very good compression, +so you don't need a separate compressor in that case. * Performance Measurements