# Class SSLUtilBase

java.lang.Object
org.apache.tomcat.util.net.SSLUtilBase

All Implemented Interfaces:
  `SSLUtil`

Direct Known Subclasses:
  `JSSEUtil`, `OpenSSLUtil`

public abstract class SSLUtilBase extends Object implements SSLUtil
Common base class for `SSLUtil` implementations.

- ## Nested Class Summary

  ### Nested classes/interfaces inherited from interface org.apache.tomcat.util.net.SSLUtil

  `SSLUtil.ProtocolInfo`

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `protected final SSLHostConfigCertificate`
  `certificate`
  `static final String`
  `DEFAULT_KEY_ALIAS`
  `protected final SSLHostConfig`
  `sslHostConfig`

- ## Constructor Summary

  Constructors
  Modifier
  Constructor
  Description
  `protected`
  `SSLUtilBase(SSLHostConfigCertificate certificate)`
  `protected`
  `SSLUtilBase(SSLHostConfigCertificate certificate, boolean warnTls13)`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `configureSessionContext(SSLSessionContext sslSessionContext)`
  `final SSLContext`
  `createSSLContext(List<String> negotiableProtocols)`
  `protected abstract SSLContext`
  `createSSLContextInternal(List<String> negotiableProtocols)`
  `protected Collection<? extends CRL>`
  `getCRLs(String crlf)`
  Load the collection of CRLs.
  `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.
  `protected abstract Set<String>`
  `getImplementedCiphers()`
  `protected abstract Set<String>`
  `getImplementedProtocols()`
  `KeyManager[]`
  `getKeyManagers()`
  `protected abstract Log`
  `getLog()`
  `protected CertPathParameters`
  `getParameters(String crlf, KeyStore trustStore, boolean revocationEnabled)`
  Return the initialization parameters for the TrustManager.
  `TrustManager[]`
  `getTrustManagers()`
  `protected abstract boolean`
  `isTls13RenegAuthAvailable()`

  ### Methods inherited from class java.lang.Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Field Details

  - ### DEFAULT_KEY_ALIAS

    public static final String DEFAULT_KEY_ALIAS
    See Also:
      - Constant Field Values

  - ### sslHostConfig

    protected final SSLHostConfig sslHostConfig

  - ### certificate

    protected final SSLHostConfigCertificate certificate

- ## Constructor Details

  - ### SSLUtilBase

    protected SSLUtilBase(SSLHostConfigCertificate certificate)

  - ### SSLUtilBase

    protected SSLUtilBase(SSLHostConfigCertificate certificate, boolean warnTls13)

- ## Method Details

  - ### createSSLContext

    public final SSLContext createSSLContext(List<String> negotiableProtocols) throws Exception
    Specified by:
      `createSSLContext` in interface `SSLUtil`
    Throws:
      `Exception`

  - ### configureSessionContext

    public void configureSessionContext(SSLSessionContext sslSessionContext)
    Specified by:
      `configureSessionContext` in interface `SSLUtil`

  - ### getKeyManagers

    public KeyManager[] getKeyManagers() throws Exception
    Specified by:
      `getKeyManagers` in interface `SSLUtil`
    Throws:
      `Exception`

  - ### getEnabledProtocols

    public String[] getEnabledProtocols()
    Description copied from interface: `SSLUtil`
    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.
    Specified by:
      `getEnabledProtocols` in interface `SSLUtil`
    Returns:
      The protocols currently enabled and available for clients to select from for the associated connection

  - ### getEnabledCiphers

    public String[] getEnabledCiphers()
    Description copied from interface: `SSLUtil`
    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 `SSLUtil.getEnabledProtocols()` and the certificates.

    Specified by:
      `getEnabledCiphers` in interface `SSLUtil`
    Returns:
      The ciphers currently enabled and available for clients to select from for the associated connection

  - ### getTrustManagers

    public TrustManager[] getTrustManagers() throws Exception
    Specified by:
      `getTrustManagers` in interface `SSLUtil`
    Throws:
      `Exception`

  - ### getParameters

    protected CertPathParameters getParameters(String crlf, KeyStore trustStore, boolean revocationEnabled) throws Exception
    Return the initialization parameters for the TrustManager. Currently, only the default `PKIX` is supported.
    Parameters:
      `crlf` - The path to the CRL file.
      `trustStore` - The configured TrustStore.
      `revocationEnabled` - Should the JSSE provider perform revocation checks? Ignored if `crlf` is non-null. Configuration of revocation checks are expected to be via proprietary JSSE provider methods.
    Returns:
      The parameters including the CRLs and TrustStore.
    Throws:
      `Exception` - An error occurred

  - ### getCRLs

    protected Collection<? extends CRL> getCRLs(String crlf) throws IOException, CRLException, CertificateException
    Load the collection of CRLs.
    Parameters:
      `crlf` - The path to the CRL file.
    Returns:
      the CRLs collection
    Throws:
      `IOException` - Error reading CRL file
      `CRLException` - CRL error
      `CertificateException` - Error processing certificate

  - ### getImplementedProtocols

    protected abstract Set<String> getImplementedProtocols()

  - ### getImplementedCiphers

    protected abstract Set<String> getImplementedCiphers()

  - ### getLog

    protected abstract Log getLog()

  - ### isTls13RenegAuthAvailable

    protected abstract boolean isTls13RenegAuthAvailable()

  - ### createSSLContextInternal

    protected abstract SSLContext createSSLContextInternal(List<String> negotiableProtocols) throws Exception
    Throws:
      `Exception`