org.bouncycastle.asn1.misc

Class ScryptParams

java.lang.Object

org.bouncycastle.asn1.ASN1Object

org.bouncycastle.asn1.misc.ScryptParams

All Implemented Interfaces:

ASN1Encodable, Encodable

public class ScryptParams
extends ASN1Object

RFC 7914 scrypt parameters.

 scrypt-params ::= SEQUENCE {
      salt OCTET STRING,
      costParameter INTEGER (1..MAX),
      blockSize INTEGER (1..MAX),
      parallelizationParameter INTEGER (1..MAX),
      keyLength INTEGER (1..MAX) OPTIONAL
 }
 

Constructor Summary

Constructors

Constructor and Description
ScryptParams(byte[] salt, BigInteger costParameter, BigInteger blockSize, BigInteger parallelizationParameter, BigInteger keyLength) Base constructor.
ScryptParams(byte[] salt, int costParameter, int blockSize, int parallelizationParameter)
ScryptParams(byte[] salt, int costParameter, int blockSize, int parallelizationParameter, int keyLength)

Method Summary

Modifier and Type	Method and Description
BigInteger	getBlockSize()
BigInteger	getCostParameter()
static ScryptParams	getInstance(Object o)
BigInteger	getKeyLength() Return the length in octets for the derived key.
BigInteger	getParallelizationParameter()
byte[]	getSalt()
ASN1Primitive	toASN1Primitive() Method providing a primitive representation of this object suitable for encoding.

Methods inherited from class org.bouncycastle.asn1.ASN1Object

equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode, toASN1Object

Methods inherited from class java.lang.Object

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

Constructor Detail

ScryptParams

public ScryptParams(byte[] salt,
                    int costParameter,
                    int blockSize,
                    int parallelizationParameter)

ScryptParams

public ScryptParams(byte[] salt,
                    int costParameter,
                    int blockSize,
                    int parallelizationParameter,
                    int keyLength)

ScryptParams

public ScryptParams(byte[] salt,
                    BigInteger costParameter,
                    BigInteger blockSize,
                    BigInteger parallelizationParameter,
                    BigInteger keyLength)

Base constructor.

Parameters:

salt - salt value

costParameter - specifies the CPU/Memory cost parameter N

blockSize - block size parameter r

parallelizationParameter - parallelization parameter

keyLength - length of key to be derived (in octects)

Method Detail

getInstance

public static ScryptParams getInstance(Object o)

getSalt

public byte[] getSalt()

getCostParameter

public BigInteger getCostParameter()

getBlockSize

public BigInteger getBlockSize()

getParallelizationParameter

public BigInteger getParallelizationParameter()

getKeyLength

public BigInteger getKeyLength()

Return the length in octets for the derived key.

Returns:

length for key to be derived (in octets)

toASN1Primitive

public ASN1Primitive toASN1Primitive()

Description copied from class: ASN1Object

Method providing a primitive representation of this object suitable for encoding.

Specified by:

toASN1Primitive in interface ASN1Encodable

Specified by:

toASN1Primitive in class ASN1Object

Returns:

a primitive representation of this object.