This is a marker interface to identify trust manager objects. A trust manager is responsible for examining the authentication credentials (such as a certificate chain) presented by the remote host and deciding whether to trust those credentials and accept them. A trustManager is usually used an SSL client to decide whether the SSL server is authentic , but may also be used by an SSL server when client authentication is also required. Use a trustManagerFactory to obtain trustManager objects. TRustManager objects returned by a trustManagerFactory can always be cast to a subinterface specific to a specific type of keys. See X509trustManager , for exmaple. public interface TrustManager { } ImplementationsX509trustManager Passed ToSSLContext.init( ) , SSLContextSpi.engineInit( ) Returned BytrustManagerFactory.getTrustManagers( ) , trustManagerFactorySpi.engineGetTrustManagers( ) |