public class SSLParameters extends Object
Encapsulates parameters for an SSL/TLS connection. The parameters are the list of ciphersuites to be accepted in an SSL/TLS handshake, the list of protocols to be allowed, the endpoint identification algorithm during SSL/TLS handshaking, the Server Name Indication (SNI), the algorithm constraints and whether SSL/TLS servers should request or require client authentication, etc.
SSLParameters can be created via the constructors in this class. Objects can also be obtained using the getSSLParameters() methods in SSLSocket and SSLServerSocket and SSLEngine or the getDefaultSSLParameters() and getSupportedSSLParameters() methods in SSLContext.
SSLParameters can be applied to a connection via the methods SSLSocket.setSSLParameters() and SSLServerSocket.setSSLParameters() and SSLEngine.setSSLParameters().
SSLSocket, SSLEngine, SSLContext
public SSLParameters()
Constructs SSLParameters.
The values of cipherSuites, protocols, cryptographic algorithm constraints, endpoint identification algorithm, server names and server name matchers are set to null, useCipherSuitesOrder, wantClientAuth and needClientAuth are set to false.
public SSLParameters(String[] cipherSuites)
Constructs SSLParameters from the specified array of ciphersuites.
Calling this constructor is equivalent to calling the no-args constructor followed by setCipherSuites(cipherSuites);.
cipherSuites - the array of ciphersuites (or null)public SSLParameters(String[] cipherSuites,
String[] protocols) Constructs SSLParameters from the specified array of ciphersuites and protocols.
Calling this constructor is equivalent to calling the no-args constructor followed by setCipherSuites(cipherSuites); setProtocols(protocols);.
cipherSuites - the array of ciphersuites (or null)protocols - the array of protocols (or null)public String[] getCipherSuites()
Returns a copy of the array of ciphersuites or null if none have been set.
public void setCipherSuites(String[] cipherSuites)
Sets the array of ciphersuites.
cipherSuites - the array of ciphersuites (or null)public String[] getProtocols()
Returns a copy of the array of protocols or null if none have been set.
public void setProtocols(String[] protocols)
Sets the array of protocols.
protocols - the array of protocols (or null)public boolean getWantClientAuth()
Returns whether client authentication should be requested.
public void setWantClientAuth(boolean wantClientAuth)
Sets whether client authentication should be requested. Calling this method clears the needClientAuth flag.
wantClientAuth - whether client authentication should be requestedpublic boolean getNeedClientAuth()
Returns whether client authentication should be required.
public void setNeedClientAuth(boolean needClientAuth)
Sets whether client authentication should be required. Calling this method clears the wantClientAuth flag.
needClientAuth - whether client authentication should be requiredpublic AlgorithmConstraints getAlgorithmConstraints()
Returns the cryptographic algorithm constraints.
setAlgorithmConstraints(AlgorithmConstraints)public void setAlgorithmConstraints(AlgorithmConstraints constraints)
Sets the cryptographic algorithm constraints, which will be used in addition to any configured by the runtime environment.
If the constraints parameter is non-null, every cryptographic algorithm, key and algorithm parameters used in the SSL/TLS handshake must be permitted by the constraints.
constraints - the algorithm constraints (or null)public String getEndpointIdentificationAlgorithm()
Gets the endpoint identification algorithm.
X509ExtendedTrustManager, setEndpointIdentificationAlgorithm(String)
public void setEndpointIdentificationAlgorithm(String algorithm)
Sets the endpoint identification algorithm.
If the algorithm parameter is non-null or non-empty, the endpoint identification/verification procedures must be handled during SSL/TLS handshaking. This is to prevent man-in-the-middle attacks.
algorithm - The standard string name of the endpoint identification algorithm (or null). See Appendix A in the Java Cryptography Architecture API Specification & Reference for information about standard algorithm names.X509ExtendedTrustManagerpublic final void setServerNames(List<SNIServerName> serverNames)
Sets the desired SNIServerNames of the Server Name Indication (SNI) parameter.
This method is only useful to SSLSockets or SSLEngines operating in client mode.
Note that the serverNames list is cloned to protect against subsequent modification.
serverNames - the list of desired SNIServerNames (or null)NullPointerException - if the serverNames contains null elementIllegalArgumentException - if the serverNames contains more than one name of the same name typeSNIServerName, getServerNames()
public final List<SNIServerName> getServerNames()
Returns a List containing all SNIServerNames of the Server Name Indication (SNI) parameter, or null if none has been set.
This method is only useful to SSLSockets or SSLEngines operating in client mode.
For SSL/TLS connections, the underlying SSL/TLS provider may specify a default value for a certain server name type. In client mode, it is recommended that, by default, providers should include the server name indication whenever the server can be located by a supported server name type.
It is recommended that providers initialize default Server Name Indications when creating SSLSocket/SSLEngines. In the following examples, the server name could be represented by an instance of SNIHostName which has been initialized with the hostname "www.example.com" and type StandardConstants.SNI_HOST_NAME.
Socket socket =
sslSocketFactory.createSocket("www.example.com", 443); or SSLEngine engine =
sslContext.createSSLEngine("www.example.com", 443);
SNIServerNamesList, setServerNames(List)
public final void setSNIMatchers(Collection<SNIMatcher> matchers)
Sets the SNIMatchers of the Server Name Indication (SNI) parameter.
This method is only useful to SSLSockets or SSLEngines operating in server mode.
Note that the matchers collection is cloned to protect against subsequent modification.
matchers - the collection of SNIMatchers (or null)NullPointerException - if the matchers contains null elementIllegalArgumentException - if the matchers contains more than one name of the same name typeCollection, SNIMatcher, getSNIMatchers()
public final Collection<SNIMatcher> getSNIMatchers()
Returns a Collection containing all SNIMatchers of the Server Name Indication (SNI) parameter, or null if none has been set.
This method is only useful to SSLSockets or SSLEngines operating in server mode.
For better interoperability, providers generally will not define default matchers so that by default servers will ignore the SNI extension and continue the handshake.
SNIMatchersSNIMatcher, setSNIMatchers(Collection)
public final void setUseCipherSuitesOrder(boolean honorOrder)
Sets whether the local cipher suites preference should be honored.
honorOrder - whether local cipher suites order in #getCipherSuites should be honored during SSL/TLS handshaking.getUseCipherSuitesOrder()public final boolean getUseCipherSuitesOrder()
Returns whether the local cipher suites preference should be honored.
#getCipherSuites should be honored during SSL/TLS handshaking.setUseCipherSuitesOrder(boolean)
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