# Interface SSLUtil

All Known Implementing Classes:
  `JSSEUtil`, `OpenSSLUtil`, `SSLUtilBase`

public interface SSLUtil
Provides a common interface for `SSLImplementation`s to create the necessary JSSE implementation objects for TLS connections created via the JSSE API.

- ## Nested Class Summary

  Nested Classes
  Modifier and Type
  Interface
  Description
  `static interface`
  `SSLUtil.ProtocolInfo`
  Optional interface that can be implemented by `SSLEngine`s to indicate that they support ALPN and can provided the protocol agreed with the client.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `configureSessionContext(SSLSessionContext sslSessionContext)`
  `SSLContext`
  `createSSLContext(List<String> negotiableProtocols)`
  `String[]`
  `getEnabledCiphers()`
  The set of enabled ciphers is the intersection of the implemented ciphers and the configured ciphers.
  `String[]`
  `getEnabledProtocols()`
  The set of enabled protocols is the intersection of the implemented protocols and the configured protocols.
  `KeyManager[]`
  `getKeyManagers()`
  `TrustManager[]`
  `getTrustManagers()`

- ## Method Details

  - ### createSSLContext

    SSLContext createSSLContext(List<String> negotiableProtocols) throws Exception
    Throws:
      `Exception`

  - ### getKeyManagers

    KeyManager[] getKeyManagers() throws Exception
    Throws:
      `Exception`

  - ### getTrustManagers

    TrustManager[] getTrustManagers() throws Exception
    Throws:
      `Exception`

  - ### configureSessionContext

    void configureSessionContext(SSLSessionContext sslSessionContext)

  - ### getEnabledProtocols

    String[] getEnabledProtocols() throws IllegalArgumentException
    The set of enabled protocols is the intersection of the implemented protocols and the configured protocols. If no protocols are explicitly configured, then all of the implemented protocols will be included in the returned array.
    Returns:
      The protocols currently enabled and available for clients to select from for the associated connection
    Throws:
      `IllegalArgumentException` - If there is no intersection between the implemented and configured protocols

  - ### getEnabledCiphers

    String[] getEnabledCiphers() throws IllegalArgumentException
    The set of enabled ciphers is the intersection of the implemented ciphers and the configured ciphers. If no ciphers are explicitly configured, then the default ciphers will be included in the returned array.

    The ciphers used during the TLS handshake may be further restricted by the `getEnabledProtocols()` and the certificates.

    Returns:
      The ciphers currently enabled and available for clients to select from for the associated connection
    Throws:
      `IllegalArgumentException` - If there is no intersection between the implemented and configured ciphers