Short answer: yes, effectively as unique as public keys. The difficulty of generating a collision by the most effective attack known is around 2^80 (for modern 160-bit fingerprints anyway), which is beyond anyone's reach at the moment. The difficulty of finding another key that has the same fingerprint as a specific key is believed to be 2^160.
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timeasmymeasure
Re: "PKI needs more than a name"
Date: 2002-06-11 05:37 am (UTC)Short answer: yes, effectively as unique as public keys. The difficulty of generating a collision by the most effective attack known is around 2^80 (for modern 160-bit fingerprints anyway), which is beyond anyone's reach at the moment. The difficulty of finding another key that has the same fingerprint as a specific key is believed to be 2^160.