org.bouncycastle.crypto
Class CryptoServicesRegistrar

java.lang.Object
  org.bouncycastle.crypto.CryptoServicesRegistrar

public final class CryptoServicesRegistrar

extends java.lang.Object

Basic registrar class for providing defaults for cryptography services in this module.

Nested Class Summary

static class

CryptoServicesRegistrar.Property Available properties that can be set.

Method Summary

static void	checkConstraints(CryptoServiceProperties cryptoService) Check a service to make sure it meets the current constraints.
static java.lang.Object[]	clearGlobalProperty(CryptoServicesRegistrar.Property property) Clear the global value for the passed in property.
static java.lang.Object[]	clearThreadProperty(CryptoServicesRegistrar.Property property) Clear the thread local value for the passed in property.
static java.lang.Object	getProperty(CryptoServicesRegistrar.Property property) Return the default value for a particular property if one exists.
static java.security.SecureRandom	getSecureRandom() Return the default source of randomness.
static java.security.SecureRandom	getSecureRandom(java.security.SecureRandom secureRandom) Return either the passed-in SecureRandom, or if it is null, then the default source of randomness.
static CryptoServicesConstraints	getServicesConstraints() Return the current algorithm/services constraints.
static java.lang.Object[]	getSizedProperty(CryptoServicesRegistrar.Property property) Return an array representing the current values for a sized property such as DH_DEFAULT_PARAMS or DSA_DEFAULT_PARAMS.
static java.lang.Object	getSizedProperty(CryptoServicesRegistrar.Property property, int size) Return the value for a specific size for a sized property such as DH_DEFAULT_PARAMS or DSA_DEFAULT_PARAMS.
static void	setGlobalProperty(CryptoServicesRegistrar.Property property, java.lang.Object[] propertyValue) Set the value of the the passed in property globally in the JVM.
static void	setSecureRandom(java.security.SecureRandom secureRandom) Set a default secure random to be used where none is otherwise provided.
static void	setSecureRandomProvider(SecureRandomProvider secureRandomProvider) Set a default secure random provider to be used where none is otherwise provided.
static void	setServicesConstraints(CryptoServicesConstraints constraints) Set the current algorithm constraints.
static void	setThreadProperty(CryptoServicesRegistrar.Property property, java.lang.Object[] propertyValue) Set the value of the the passed in property on the current thread only.

Methods inherited from class java.lang.Object

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

Method Detail

getSecureRandom

public static java.security.SecureRandom getSecureRandom()

Return the default source of randomness.

Returns:

the default SecureRandom

getSecureRandom

public static java.security.SecureRandom getSecureRandom(java.security.SecureRandom secureRandom)

Return either the passed-in SecureRandom, or if it is null, then the default source of randomness.

Parameters:

secureRandom - the SecureRandom to use if it is not null.

Returns:

the SecureRandom parameter if it is not null, or else the default SecureRandom

setSecureRandom

public static void setSecureRandom(java.security.SecureRandom secureRandom)

Set a default secure random to be used where none is otherwise provided.

Parameters:

secureRandom - the SecureRandom to use as the default.

setSecureRandomProvider

public static void setSecureRandomProvider(SecureRandomProvider secureRandomProvider)

Set a default secure random provider to be used where none is otherwise provided.

Parameters:

secureRandomProvider - a provider SecureRandom to use when a default SecureRandom is requested.

getServicesConstraints

public static CryptoServicesConstraints getServicesConstraints()

Return the current algorithm/services constraints.

Returns:

the algorithm/services constraints.

checkConstraints

public static void checkConstraints(CryptoServiceProperties cryptoService)

Check a service to make sure it meets the current constraints.

Parameters:

cryptoService - the service to be checked.

Throws:

CryptoServiceConstraintsException - if the service violates the current constraints.

setServicesConstraints

public static void setServicesConstraints(CryptoServicesConstraints constraints)

Set the current algorithm constraints.

getProperty

public static java.lang.Object getProperty(CryptoServicesRegistrar.Property property)

Return the default value for a particular property if one exists. The look up is done on the thread's local configuration first and then on the global configuration in no local configuration exists.

Parameters:

property - the property to look up.

Returns:

null if the property is not set, the default value otherwise,

getSizedProperty

public static java.lang.Object[] getSizedProperty(CryptoServicesRegistrar.Property property)

Return an array representing the current values for a sized property such as DH_DEFAULT_PARAMS or DSA_DEFAULT_PARAMS.

Parameters:

property - the name of the property to look up.

Returns:

null if the property is not set, an array of the current values otherwise.

getSizedProperty

public static java.lang.Object getSizedProperty(CryptoServicesRegistrar.Property property,
                                                int size)

Return the value for a specific size for a sized property such as DH_DEFAULT_PARAMS or DSA_DEFAULT_PARAMS.

Parameters:

property - the name of the property to look up.

size - the size (in bits) of the defining value in the property type.

Returns:

the current value for the size, null if there is no value set,

setThreadProperty

public static void setThreadProperty(CryptoServicesRegistrar.Property property,
                                     java.lang.Object[] propertyValue)

Set the value of the the passed in property on the current thread only. More than one value can be passed in for a sized property. If more than one value is provided the first value in the argument list becomes the default value.

Parameters:

property - the name of the property to set.

propertyValue - the values to assign to the property.

setGlobalProperty

public static void setGlobalProperty(CryptoServicesRegistrar.Property property,
                                     java.lang.Object[] propertyValue)

Set the value of the the passed in property globally in the JVM. More than one value can be passed in for a sized property. If more than one value is provided the first value in the argument list becomes the default value.

Parameters:

property - the name of the property to set.

propertyValue - the values to assign to the property.

clearGlobalProperty

public static java.lang.Object[] clearGlobalProperty(CryptoServicesRegistrar.Property property)

Clear the global value for the passed in property.

Parameters:

property - the property to be cleared.

Returns:

an array of T if a value was previously set, null otherwise.

clearThreadProperty

public static java.lang.Object[] clearThreadProperty(CryptoServicesRegistrar.Property property)

Clear the thread local value for the passed in property.

Parameters:

property - the property to be cleared.

Returns:

an array of T if a value was previously set, null otherwise.