Package org.bouncycastle.crypto.fips

Class Scrypt.ParametersBuilder

java.lang.Object

org.bouncycastle.crypto.fips.FipsParameters

org.bouncycastle.crypto.fips.Scrypt.ParametersBuilder

All Implemented Interfaces:

Parameters

Enclosing class:

Scrypt

public static final class Scrypt.ParametersBuilder
extends FipsParameters

Parameters builder for the scrypt key derivation function.

Method Summary

Modifier and Type	Method	Description
Scrypt.Parameters	using(byte[] salt, int n, int r, int p, byte[] seed)	Generate a key using the scrypt key derivation function.
Scrypt.Parameters	using(byte[] salt, int n, int r, int p, PasswordConverter converter, char[] password)	Generate a key using the scrypt key derivation function.

Methods inherited from class org.bouncycastle.crypto.fips.FipsParameters

getAlgorithm

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

using

public Scrypt.Parameters using(byte[] salt,
 int n,
 int r,
 int p,
 byte[] seed)

Generate a key using the scrypt key derivation function.

Parameters:

salt - the salt to use for this invocation.

n - CPU/Memory cost parameter. Must be larger than 1, a power of 2 and less than 2^(128 * r / 8).

r - the block size, must be >= 1.

p - Parallelization parameter. Must be a positive integer less than or equal to Integer.MAX_VALUE / (128 * r * 8).

seed - the value feed into the PBKDF2 function.

Returns:

the generated key.

using

public Scrypt.Parameters using(byte[] salt,
 int n,
 int r,
 int p,
 PasswordConverter converter,
 char[] password)

Generate a key using the scrypt key derivation function.

Parameters:

salt - the salt to use for this invocation.

n - CPU/Memory cost parameter. Must be larger than 1, a power of 2 and less than 2^(128 * r / 8).

r - the block size, must be >= 1.

p - Parallelization parameter. Must be a positive integer less than or equal to Integer.MAX_VALUE / (128 * r * 8).

converter - a converter to turn the password characters into the byte array for the seed.

password - a character string to use as a seed.

Returns:

the generated key.