, SecurityFocus 2005-08-23
Three Chinese researchers have further refined an attack on the encryption standard frequently used to digitally sign documents, making the attack 64 times faster and leaving cryptographers to debate whether the standard, known as the Secure Hash Algorithm, should be phased out more quickly than planned.
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Storm brewing over SHA-1 as further breaks are found
2005-08-25
RT (1 replies)
RT (1 replies)
I was thinking the same thing. Use two algorithyms.
Or do something like this. Hash the file, add the hash to the end of the file and hash it again.
I seems like you can't avoid collisions unless you make the hash codes bigger than the file itself.
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Link to this comment: http://www.securityfocus.com/comments/articles/11292/32712#32712