Added in API level 1

KeyGeneratorSpi

abstract class KeyGeneratorSpi

kotlin.Any
↳	javax.crypto.KeyGeneratorSpi

This class defines the Service Provider Interface (SPI) for the KeyGenerator class. All the abstract methods in this class must be implemented by each cryptographic service provider who wishes to supply the implementation of a key generator for a particular algorithm.

Summary

Public constructors
`KeyGeneratorSpi()`

Protected methods
abstract SecretKey!	`engineGenerateKey()` Generates a secret key.
abstract Unit	`engineInit(keysize: Int, random: SecureRandom!)` Initializes this key generator for a certain keysize, using the given source of randomness.
abstract Unit	`engineInit(random: SecureRandom!)` Initializes the key generator.
abstract Unit	`engineInit(params: AlgorithmParameterSpec!, random: SecureRandom!)` Initializes the key generator with the specified parameter set and a user-provided source of randomness.

Public constructors

KeyGeneratorSpi

Added in API level 1

KeyGeneratorSpi()

Protected methods

engineGenerateKey

Added in API level 1

protected abstract fun engineGenerateKey(): SecretKey!

Generates a secret key.

Return
`SecretKey!`	the new key

engineInit

Added in API level 1

protected abstract fun engineInit(
    keysize: Int, 
    random: SecureRandom!
): Unit

Initializes this key generator for a certain keysize, using the given source of randomness.

Parameters
`keysize`	Int: the keysize. This is an algorithm-specific metric, specified in number of bits.
`random`	SecureRandom!: the source of randomness for this key generator

Exceptions
`java.security.InvalidParameterException`	if the keysize is wrong or not supported.

engineInit

Added in API level 1

protected abstract fun engineInit(random: SecureRandom!): Unit

Initializes the key generator.

Parameters
`random`	SecureRandom!: the source of randomness for this generator

engineInit

Added in API level 1

protected abstract fun engineInit(
    params: AlgorithmParameterSpec!, 
    random: SecureRandom!
): Unit

Initializes the key generator with the specified parameter set and a user-provided source of randomness.

Parameters
`params`	AlgorithmParameterSpec!: the key generation parameters
`random`	SecureRandom!: the source of randomness for this key generator

Exceptions
`java.security.InvalidAlgorithmParameterException`	if `params` is inappropriate for this key generator