Answer: Version 5.0 provides WS-Security headers with username tokens, x509 certs, identity assertions, dig sigs, and encryption as a Tech Preview.

答：版本5.0为ws - security头提供了用户名令牌、x509证书、身份断言、数字签名和加密作为技术预览。

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Listing 5: X509 Certificate details.

清单5：x509证书的详细信息。

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Standard X509 certificate processing occurs.

标准的X509证书处理流程。

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