Cryptography Stack Exchange is a question and answer site for software developers, mathematicians and others interested in cryptography. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I understand there are specifications for public-key fingerprints that use modern hash algorithms like SHA2. What are they?

share|improve this question

Any secure hash algorithm can be used to generate a public key fingerprint - your choice depends entirely on which hash is expected by the other party.

share|improve this answer
I recall reading some standard about taking the SHA2 hash of a DER representation of the private key, and a standard name for this kind of fingerprint. – joeforker Feb 8 '13 at 13:57
Yes I did see this when looking around for an answer for you - I'm not overly familiar with fingerprinting but is this the document you're looking for? – Alex Jeffrey Feb 8 '13 at 14:04

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.