SSLSupport (Apache Tomcat 10.1.55 API Documentation)
Description: declaration: package: org.apache.tomcat.util.net, interface: SSLSupport

# Interface SSLSupport

All Known Implementing Classes:
  `JSSESupport`

public interface SSLSupport
Defines an interface to interact with SSL sessions.

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `static final String`
  `CERTIFICATE_KEY`
  The Request attribute key for the client certificate chain.
  `static final String`
  `CIPHER_SUITE_KEY`
  The Request attribute key for the cipher suite.
  `static final String`
  `KEY_SIZE_KEY`
  The Request attribute key for the key size.
  `static final String`
  `PROTOCOL_VERSION_KEY`
  The request attribute key under which the String indicating the protocol that created the SSL socket is recorded - e.g.
  `static final String`
  `REQUESTED_CIPHERS_KEY`
  The request attribute key under which the String indicating the ciphers requested by the client are recorded.
  `static final String`
  `REQUESTED_PROTOCOL_VERSIONS_KEY`
  The request attribute key under which the String indicating the protocols requested by the client are recorded.
  `static final String`
  `SESSION_ID_KEY`
  The Request attribute key for the session id.
  `static final String`
  `SESSION_MGR`
  The request attribute key for the session manager.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `String`
  `getCipherSuite()`
  The cipher suite being used on this connection.
  `Integer`
  `getKeySize()`
  Get the key size.
  `default X509Certificate[]`
  `getLocalCertificateChain()`
  The server certificate chain (if any) that were sent to the peer.
  `X509Certificate[]`
  `getPeerCertificateChain()`
  The client certificate chain (if any).
  `String`
  `getProtocol()`
  `String`
  `getRequestedCiphers()`
  `String`
  `getRequestedProtocols()`
  `String`
  `getSessionId()`
  The current session Id.

- ## Field Details

  - ### CIPHER_SUITE_KEY

    static final String CIPHER_SUITE_KEY
    The Request attribute key for the cipher suite.
    See Also:
      - Constant Field Values

  - ### KEY_SIZE_KEY

    static final String KEY_SIZE_KEY
    The Request attribute key for the key size.
    See Also:
      - Constant Field Values

  - ### CERTIFICATE_KEY

    static final String CERTIFICATE_KEY
    The Request attribute key for the client certificate chain.
    See Also:
      - Constant Field Values

  - ### SESSION_ID_KEY

    static final String SESSION_ID_KEY
    The Request attribute key for the session id. This one is a Tomcat extension to the Servlet spec.
    See Also:
      - Constant Field Values

  - ### SESSION_MGR

    static final String SESSION_MGR
    The request attribute key for the session manager. This one is a Tomcat extension to the Servlet spec.
    See Also:
      - Constant Field Values

  - ### PROTOCOL_VERSION_KEY

    static final String PROTOCOL_VERSION_KEY
    The request attribute key under which the String indicating the protocol that created the SSL socket is recorded - e.g. TLSv1 or TLSv1.2 etc.
    See Also:
      - Constant Field Values

  - ### REQUESTED_CIPHERS_KEY

    static final String REQUESTED_CIPHERS_KEY
    The request attribute key under which the String indicating the ciphers requested by the client are recorded.
    See Also:
      - Constant Field Values

  - ### REQUESTED_PROTOCOL_VERSIONS_KEY

    static final String REQUESTED_PROTOCOL_VERSIONS_KEY
    The request attribute key under which the String indicating the protocols requested by the client are recorded.
    See Also:
      - Constant Field Values

- ## Method Details

  - ### getCipherSuite

    String getCipherSuite() throws IOException
    The cipher suite being used on this connection.
    Returns:
      The name of the cipher suite as returned by the SSL/TLS implementation
    Throws:
      `IOException` - If an error occurs trying to obtain the cipher suite

  - ### getPeerCertificateChain

    X509Certificate[] getPeerCertificateChain() throws IOException
    The client certificate chain (if any).
    Returns:
      The certificate chain presented by the client with the peer's certificate first, followed by those of any certificate authorities
    Throws:
      `IOException` - If an error occurs trying to obtain the certificate chain

  - ### getLocalCertificateChain

    default X509Certificate[] getLocalCertificateChain()
    The server certificate chain (if any) that were sent to the peer.
    Returns:
      The certificate chain sent with the server certificate first, followed by those of any certificate authorities

  - ### getKeySize

    Integer getKeySize() throws IOException
    Get the key size. What we're supposed to put here is ill-defined by the Servlet spec (S 4.7 again). There are at least 4 potential values that might go here: (a) The size of the encryption key (b) The size of the MAC key (c) The size of the key-exchange key (d) The size of the signature key used by the server Unfortunately, all of these values are nonsensical.
    Returns:
      The effective key size for the current cipher suite
    Throws:
      `IOException` - If an error occurs trying to obtain the key size

  - ### getSessionId

    String getSessionId() throws IOException
    The current session Id.
    Returns:
      The current SSL/TLS session ID
    Throws:
      `IOException` - If an error occurs trying to obtain the session ID

  - ### getProtocol

    String getProtocol() throws IOException
    Returns:
      the protocol String indicating how the SSL socket was created e.g. TLSv1 or TLSv1.2 etc.
    Throws:
      `IOException` - If an error occurs trying to obtain the protocol information from the socket

  - ### getRequestedProtocols

    String getRequestedProtocols() throws IOException
    Returns:
      the list of SSL/TLS protocol versions requested by the client
    Throws:
      `IOException` - If an error occurs trying to obtain the client requested protocol information from the socket

  - ### getRequestedCiphers

    String getRequestedCiphers() throws IOException
    Returns:
      the list of SSL/TLS ciphers requested by the client
    Throws:
      `IOException` - If an error occurs trying to obtain the client request cipher information from the socket