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| java.lang.Object
 java.util.Random
java.security.SecureRandom
| SecureRandom | | public SecureRandom()(Code) | | Constructs a new instance of this class. Users are encouraged to use
getInstance() instead.
An implementation for the highest-priority provider is returned. The
instance returned will not have been seeded.
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| SecureRandom | | public SecureRandom(byte[] seed)(Code) | | Constructs a new instance of this class. Users are encouraged to use
getInstance() instead.
An implementation for the highest-priority provider is returned. The
instance returned will be seeded with the parameter.
Parameters:
seed - bytes forming the seed for this generator. |
| generateSeed | | public byte[] generateSeed(int numBytes)(Code) | | Generates a certain number of seed bytes
Parameters:
numBytes - int Number of seed bytes to generate byte[] The seed bytes generated |
| getInstance | | public static SecureRandom getInstance(String algorithm, String provider) throws NoSuchAlgorithmException, NoSuchProviderException(Code) | | Answers a new SecureRandom which is capable of running the algorithm
described by the argument. The result will be an instance of a subclass
of SecureRandomSpi which implements that algorithm.
Parameters:
algorithm - java.lang.String Name of the algorithm desired
Parameters:
provider - java.security.Provider Provider which has to implement thealgorithm SecureRandom a concrete implementation for the algorithm desired.
exception:
NoSuchAlgorithmException - If the algorithm cannot be found |
| getProvider | | final public Provider getProvider()(Code) | | Returns the Provider of the secure random represented by the receiver.
Provider an instance of a subclass of java.security.Provider |
| getSeed | | public static byte[] getSeed(int numBytes)(Code) | | Returns the given number of seed bytes, computed using the seed
generation algorithm used by this class.
Parameters:
numBytes - int the given number of seed bytes byte[] The seed bytes generated |
| next | | final protected int next(int numBits)(Code) | | |
| nextBytes | | public synchronized void nextBytes(byte[] bytes)(Code) | | |
| setSeed | | public synchronized void setSeed(byte[] seed)(Code) | | |
| setSeed | | public void setSeed(long seed)(Code) | | Reseeds this random object with the eight bytes described by the
representation of the long provided.
Parameters:
seed - long Number whose representation to use to reseed thereceiver. |
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