Kerberos 支持凭据委派。应用程序可能需要访问 Kerberos ticket，以便可以重新使用它与 Kerberos 保护的其他服务交互。因为 Red Hat Single Sign-On 服务器处理 SPNEGO 协议，所以您必须将 GSS 凭证传播到 OpenID Connect 令牌声明或 SAML 断言属性中的应用程序。Red Hat Single Sign-On 从 Red Hat Single Sign-On 服务器将其传输到您的应用程序。要将此声明插入到令牌或断言中，每个应用程序都必须启用内置协议映射程序 gss delegation 凭据。此 映射程序 位于应用程序客户端页面的"映射程序"选项卡中。如需了解更多详细信息，请参阅 协议映射程序 章节。
应用程序必须反序列化它从 Red Hat Single Sign-On 接收的声明，然后才能向其他服务发出 GSS 调用。当您将凭证从访问令牌映射到 GSSCredential 对象时，使用传递给 GSSManager.createContext 方法创建 GSSContext。例如：
// Obtain accessToken in your application.
KeycloakPrincipal keycloakPrincipal = (KeycloakPrincipal) servletReq.getUserPrincipal();
AccessToken accessToken = keycloakPrincipal.getKeycloakSecurityContext().getToken();
// Retrieve Kerberos credential from accessToken and deserialize it
String serializedGssCredential = (String) accessToken.getOtherClaims().
get(org.keycloak.common.constants.KerberosConstants.GSS_DELEGATION_CREDENTIAL);
GSSCredential deserializedGssCredential = org.keycloak.common.util.KerberosSerializationUtils.
deserializeCredential(serializedGssCredential);
// Create GSSContext to call other Kerberos-secured services
GSSContext context = gssManager.createContext(serviceName, krb5Oid,
deserializedGssCredential, GSSContext.DEFAULT_LIFETIME);
// Obtain accessToken in your application.
KeycloakPrincipal keycloakPrincipal = (KeycloakPrincipal) servletReq.getUserPrincipal();
AccessToken accessToken = keycloakPrincipal.getKeycloakSecurityContext().getToken();
// Retrieve Kerberos credential from accessToken and deserialize it
String serializedGssCredential = (String) accessToken.getOtherClaims().
get(org.keycloak.common.constants.KerberosConstants.GSS_DELEGATION_CREDENTIAL);
GSSCredential deserializedGssCredential = org.keycloak.common.util.KerberosSerializationUtils.
deserializeCredential(serializedGssCredential);
// Create GSSContext to call other Kerberos-secured services
GSSContext context = gssManager.createContext(serviceName, krb5Oid,
deserializedGssCredential, GSSContext.DEFAULT_LIFETIME);
Copy to ClipboardCopied!Toggle word wrapToggle overflow
红帽全球峰会
'%20d='M201.5%20305.5c-13.8%200-24.9-11.1-24.9-24.6%200-13.8%2011.1-24.9%2024.9-24.9%2013.6%200%2024.6%2011.1%2024.6%2024.9%200%2013.6-11.1%2024.6-24.6%2024.6zM504%20256c0%20137-111%20248-248%20248S8%20393%208%20256%20119%208%20256%208s248%20111%20248%20248zm-132.3-41.2c-9.4%200-17.7%203.9-23.8%2010-22.4-15.5-52.6-25.5-86.1-26.6l17.4-78.3%2055.4%2012.5c0%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.3%2024.9-24.9s-11.1-24.9-24.9-24.9c-9.7%200-18%205.8-22.1%2013.8l-61.2-13.6c-3-.8-6.1%201.4-6.9%204.4l-19.1%2086.4c-33.2%201.4-63.1%2011.3-85.5%2026.8-6.1-6.4-14.7-10.2-24.1-10.2-34.9%200-46.3%2046.9-14.4%2062.8-1.1%205-1.7%2010.2-1.7%2015.5%200%2052.6%2059.2%2095.2%20132%2095.2%2073.1%200%20132.3-42.6%20132.3-95.2%200-5.3-.6-10.8-1.9-15.8%2031.3-16%2019.8-62.5-14.9-62.5zM302.8%20331c-18.2%2018.2-76.1%2017.9-93.6%200-2.2-2.2-6.1-2.2-8.3%200-2.5%202.5-2.5%206.4%200%208.6%2022.8%2022.8%2087.3%2022.8%20110.2%200%202.5-2.2%202.5-6.1%200-8.6-2.2-2.2-6.1-2.2-8.3%200zm7.7-75c-13.6%200-24.6%2011.1-24.6%2024.9%200%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.1%2024.9-24.6%200-13.8-11-24.9-24.9-24.9z'/%3e%3c/svg%3e){kind=small}