# File lib/net/ssh/authentication/agent.rb, line 121 def sign(key, data) type, reply = send_and_wait(SSH2_AGENT_SIGN_REQUEST, :string, Buffer.from(:key, key), :string, data, :long, 0) if agent_failed(type) raise AgentError, "agent could not sign data with requested identity" elsif type != SSH2_AGENT_SIGN_RESPONSE raise AgentError, "bad authentication response #{type}" end return reply.read_string end