| java.lang.Object
 java.security.SecureRandomSpi
All known Subclasses: sun.security.provider.SecureRandom,
| SecureRandomSpi | | abstract public class SecureRandomSpi implements java.io.Serializable(Code) | | This class defines the Service Provider Interface (SPI)
for the SecureRandom class.
All the abstract methods in this class must be implemented by each
service provider who wishes to supply the implementation
of a cryptographically strong pseudo-random number generator.
version:
1.7, 02/02/00
See Also: SecureRandom
since:
1.2 |
| Method Summary | |
| abstract protected byte[] | engineGenerateSeed(int numBytes)
Returns the given number of seed bytes. | | abstract protected void | engineNextBytes(byte[] bytes)
Generates a user-specified number of random bytes. | | abstract protected void | engineSetSeed(byte[] seed)
Reseeds this random object. |
| engineGenerateSeed | | abstract protected byte[] engineGenerateSeed(int numBytes)(Code) | | Returns the given number of seed bytes. This call may be used to
seed other random number generators.
Parameters:
numBytes - the number of seed bytes to generate. the seed bytes. |
| engineNextBytes | | abstract protected void engineNextBytes(byte[] bytes)(Code) | | Generates a user-specified number of random bytes.
Parameters:
bytes - the array to be filled in with random bytes. |
| engineSetSeed | | abstract protected void engineSetSeed(byte[] seed)(Code) | | Reseeds this random object. The given seed supplements, rather than
replaces, the existing seed. Thus, repeated calls are guaranteed
never to reduce randomness.
Parameters:
seed - the seed. |
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