As soon as the byte codes of the agent change, the old user signature becomes invalid.

代理的字节代码一变更，旧的用户签名就变成无效的了。

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Signature: Whenever a user sends a message over the network, it signs the message.

签名：当用户通过网络发送消息时，它会对消息进行签名。

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Another example: the user identity is passed as a parameter defined in the method signature.

另一个示例：用户标识作为方法签名中定义的参数进行传递。

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What's more, the tech has use outside of robotics and can even be levereged for more secure e-signature verification based on speed and pressure of a user's handwriting.

ENGADGET