SecureRandom.getSeed
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public static byte[] getSeed( int numBytes )
Parameters
- numBytes
- the number of seed bytes to generate.
Returns
the seed bytes.
Description
Returns the given number of seed bytes, computed using the seed
generation algorithm that this class uses to seed itself. This
call may be used to seed other random number generators. While
we attempt to return a "truly random" sequence of bytes, we do not
know exactly how random the bytes returned by this call are. (See
the empty constructor SecureRandom
for a brief description of the underlying algorithm.)
The prudent user will err on the side of caution and get extra
seed bytes, although it should be noted that seed generation is
somewhat costly.