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# frozen_string_literal: true
module Gitlab
#
# Calculates the fingerprint of a given key without using
# openssh key validations. For this reason, only use
# for calculating the fingerprint to find the key with it.
#
# DO NOT use it for checking the validity of a ssh key.
#
class InsecureKeyFingerprint
attr_accessor :key
# Gets the base64 encoded string representing a rsa or dsa key
#
def initialize(key_base64)
@key = key_base64
end
def fingerprint_sha256
Digest::SHA256.base64digest(Base64.decode64(@key)).scan(/../).join('').delete("=")
end
end
end
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