Method: RbNaCl::SelfTest.digital_signature_test

Defined in:
lib/rbnacl/self_test.rb

.digital_signature_test ⇒ Object 



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# File 'lib/rbnacl/self_test.rb', line 51

def digital_signature_test
  signing_key = SigningKey.new(vector(:sign_private))
  verify_key  = signing_key.verify_key

  unless verify_key.to_s == vector(:sign_public)
    # :nocov:
    raise SelfTestFailure, "failed to generate verify key correctly"
    # :nocov:
  end

  message   = vector :sign_message
  signature = signing_key.sign(message)

  unless signature == vector(:sign_signature)
    # :nocov:
    raise SelfTestFailure, "failed to generate correct signature"
    # :nocov:
  end

  unless verify_key.verify(signature, message)
    # :nocov:
    raise SelfTestFailure, "failed to verify a valid signature"
    # :nocov:
  end

  begin
    passed = false
    bad_signature = signature[0, 63] + "0"
    verify_key.verify(bad_signature, message)
  rescue CryptoError
    passed = true
  ensure
    passed || raise(SelfTestFailure, "failed to detect corrupt ciphertext")
  end
end