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amrali/fingerprint_publickey.coffee

Created September 2, 2012 08:01
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Get public key's fingerprint in CoffeeScript
Raw
fingerprint_publickey.coffee
crypto = require 'crypto'
md5sum = crypto.createHash 'md5'
pkey = 'Base64 encoded public key goes here'
data = Buffer(key, 'base64').toString 'binary'
md5sum.update data
fingerprint = md5sum.digest 'hex'
fingerprint = ("#{fingerprint[i]}#{fingerprint[i + 1]}" for i in [0...fingerprint.length] when i % 2 is 0).join ':'
# `fingerprint` now contains the colon separated hexadecimal fingerprint
# (e.g., 2f:2d:44:61:3f:11:7c:9e:b5:f1:c3:55:bf:08:ee:fd)
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