39 lines
1.2 KiB
Ruby
39 lines
1.2 KiB
Ruby
# Copyright (c) 2010, Diaspora Inc. This file is
|
|
# licensed under the Affero General Public License version 3 or later. See
|
|
# the COPYRIGHT file.
|
|
|
|
module Encryptable
|
|
def signable_string
|
|
raise NotImplementedException("Override this in your encryptable class")
|
|
end
|
|
|
|
def signature_valid?
|
|
verify_signature(creator_signature, person)
|
|
end
|
|
|
|
def verify_signature(signature, person)
|
|
if person.nil?
|
|
Rails.logger.info("event=verify_signature status=abort reason=no_person model_id=#{id}")
|
|
return false
|
|
elsif person.public_key.nil?
|
|
Rails.logger.info("event=verify_signature status=abort reason=no_key model_id=#{id}")
|
|
return false
|
|
elsif signature.nil?
|
|
Rails.logger.info("event=verify_signature status=abort reason=no_signature model_id=#{id}")
|
|
return false
|
|
end
|
|
log_string = "event=verify_signature status=complete model_id=#{id}"
|
|
validity = person.public_key.verify "SHA", Base64.decode64(signature), signable_string
|
|
log_string += " validity=#{validity}"
|
|
Rails.logger.info(log_string)
|
|
validity
|
|
end
|
|
|
|
def sign_with_key(key)
|
|
sig = Base64.encode64(key.sign "SHA", signable_string)
|
|
Rails.logger.info("event=sign_with_key status=complete model_id=#{id}")
|
|
sig
|
|
end
|
|
|
|
end
|
|
|