37 lines
1.2 KiB
Ruby
37 lines
1.2 KiB
Ruby
# Copyright (c) 2010, Diaspora Inc. This file is
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# licensed under the Affero General Public License version 3 or later. See
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# the COPYRIGHT file.
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module Encryptable
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def signable_string
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raise NotImplementedException("Override this in your encryptable class")
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end
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def signature_valid?
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verify_signature(creator_signature, person)
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end
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def verify_signature(signature, person)
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if person.nil?
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Rails.logger.info("Verifying sig on #{signable_string} but no person is here")
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return false
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elsif person.public_key.nil?
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Rails.logger.info("Verifying sig on #{signable_string} but #{person.name} has no key")
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return false
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elsif signature.nil?
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Rails.logger.info("Verifying sig on #{signable_string} but #{person.name} did not sign")
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return false
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end
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Rails.logger.debug("Verifying sig on #{signable_string} from person #{person.name}")
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validity = person.public_key.verify "SHA", Base64.decode64(signature), signable_string
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Rails.logger.debug("Validity: #{validity}")
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validity
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end
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def sign_with_key(key)
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Rails.logger.debug("Signing #{signable_string}")
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Base64.encode64(key.sign "SHA", signable_string)
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end
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end
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