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Added in API level 1

SecureRandomSpi

abstract class SecureRandomSpi : Serializable
kotlin.Any
   ↳ java.security.SecureRandomSpi

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.

Summary

Public constructors

Protected methods

abstract ByteArray!

Returns the given number of seed bytes.

abstract Unit

Generates a user-specified number of random bytes.

abstract Unit

Reseeds this random object.

Public constructors

<init>

Added in API level 1
SecureRandomSpi()

Protected methods

engineGenerateSeed

Added in API level 1
protected abstract fun engineGenerateSeed(numBytes: Int): ByteArray!

Returns the given number of seed bytes. This call may be used to seed other random number generators.

Parameters
numBytes Int: the number of seed bytes to generate.
Return
ByteArray! the seed bytes.

engineNextBytes

Added in API level 1
protected abstract fun engineNextBytes(bytes: ByteArray!): Unit

Generates a user-specified number of random bytes.

If a call to engineSetSeed had not occurred previously, the first call to this method forces this SecureRandom implementation to seed itself. This self-seeding will not occur if engineSetSeed was previously called.

Parameters
bytes ByteArray!: the array to be filled in with random bytes.

engineSetSeed

Added in API level 1
protected abstract fun engineSetSeed(seed: ByteArray!): Unit

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 ByteArray!: the seed.