Have you disqualified all schemes based on Digest::MD5?

Digest::MD5::md5_hex() returns a 32 byte string (representing 16 bytes/128 bits worth of hash). If you're required to have 64 bits of hash, you could take an MD5 hash and cut it in half.

And MD5 has been vetted by experts. It's probably safer than rolling your own.

In reply to Re: On generating checksums and using unpack by dws
in thread On generating checksums and using unpack by jeffa

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