The provider could use digital signatures and secure service tokens (such as X509 certificates) that they have issued to validate the requestor's entitlements.
服务提供者可以使用数字签名和安全服务令牌符号（例如X509证书），用它们来验证请求者的权利。
Secure Multipurpose Internet Mail Extensions (S/MIME) allows digital signatures to be attached to e-mail messages, such that the recipient can verify the identity of the signer.
安全多用途Internet邮件扩展（Secure Multipurpose Internet Mail Extensions，S/MIME）允许将数字签名附加到电子邮件消息上，这样接收方就可以验证签名者的身份。
A link to sample code illustrating a Web service that combines document generation and secure digital signatures in an example workflow is provided below.
下面提供了样例代码的链接，该代码阐述了将文档生成和样例流程中安全的数字签名相结合的Web服务。
The term "WS-Security" is usually used to refer to a group of specifications that handle encryption and digital signatures, enabling you to create a secure application.
术语“WS - Security”通常指处理加密和数字签名的一组规范，支持您创建安全应用程序。
SSL helps secure e-commerce communications and payments through a variety of techniques such as message encryption and digital signatures.
通过诸如信息加密和数字签名等多种技术，SSL促进安全的电子商务通信和支付。
Secure hash algorithms are important tools for cryptographic applications such as digital signatures.
安全散列算法是数字签名等密码学应用中重要的工具。
Secure hash algorithms are important tools for cryptographic applications such as digital signatures.
安全散列算法是数字签名等密码学应用中重要的工具。
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