请将以下内容总结为不超过四句话，突出" stamped"的特点： "When it comes to authentication in the digital world, a digital signature plays a vital role. It is a type of stamped mark used to verify the authenticity of a message or document. Unlike a traditional signature, a digital signature is unique and linked to the content it is stamped on, ensuring that any alteration to the content can be detected. By using advanced cryptography, it not only marks the document as genuine but also provides a layer of security that is robust against tampering and forgery."
user
数字签名在验证消息或文档真实性方面扮演着重要角色。它作为一种独特的“stamped”标志，与所盖内容紧密相关，确保内容的任何更改都能被检测到。通过使用高级加密技术，数字签名不仅使文档真实化，还提供了强大的防篡改和防伪造安全层。
assistant