Re: Combining MD5 and SHA-1 to reduce collision probability

[Luc Perthuis]

Thank you all for your valuable answers. On 22/04/2011 00:33, Dave Thompson wrote: *Accidental* (birthday) collision is about 264 for MD5 and about 280 for SHA-1. > SHA-256 should be much stronger, would this be sufficient > for your needs? Or SHA-512? > That's simpler and probably at least as good as a hybrid. It's still not an absolute guarantee, though. To be honest, I've no particular need, I was just auditing someone else realization... -- Luc Perthuis, Team Leader, Backup and Restore Technologies luc.perth...@atempo.com T +33 (0)2 97 68 40 26 | M +33 (0)6 89 16 96 37 http://www.atempo.com Atempo | Data Management, Simplified. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org