| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Sat, 19 May 2007 20:12:15 +0200 From: devzero@....de To: khc@...waw.pl Cc: linux-kernel@...r.kernel.org Subject: Re: [RFC] LZO1X de/compression support >I'm certainly missing something but what are the advantages of this >code (over current gzip etc.), and what will be using it? lzo compresses/decompresses much faster and using less cpu this is how it compares: bzip2: best compression, but damn slow performance gzip: good compression with good performance lzo: not that good compression but stunning performance reiser4 and compressed caching is alrady using lzo compression, but they bring their own implementation - there are other projects which could make use of it - so it`s better to share the code by making it an integral part of the kernel. roland > Facts for LZO (at least for original code. Should hold true for this > port also - hence the RFC!): > - The compressor can never overrun buffer. > - The "non-safe" version of decompressor can never overrun buffer if > compressed data is unmodified. I am not sure about this if compressed > data is malicious (to be confirmed from the author). > - The "safe" version can never crash (buffer overrun etc.) - confirmed > from the author. I'm certainly missing something but what are the advantages of this code (over current gzip etc.), and what will be using it? -- Krzysztof Halasa _______________________________________________________________ SMS schreiben mit WEB.DE FreeMail - einfach, schnell und kostenguenstig. Jetzt gleich testen! http://f.web.de/?mc=021192 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists