Package ch.bitagent.bitcoin.lib.helper

Class Hash

java.lang.Object

ch.bitagent.bitcoin.lib.helper.Hash

public class Hash
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static Int	SIGHASH_ALL	Constant SIGHASH_ALL
static Int	SIGHASH_NONE	Constant SIGHASH_NONE
static Int	SIGHASH_SINGLE	Constant SIGHASH_SINGLE

Method Summary

Modifier and Type	Method	Description
static MessageDigest	getDigestSha256()
static byte[]	hash160(byte[] bytes)	sha256 followed by ripemd160
static byte[]	hash256(byte[] bytes)	two rounds of sha256
static byte[]	hash256(MessageDigest digest, byte[] bytes)
static Mac	hmacS256Init(byte[] key)	hmacS256Init.
static Mac	hmacS512Init(byte[] key)	hmacS512Init.
static byte[]	sha1(byte[] bytes)	sha1.
static byte[]	sha256(byte[] bytes)	sha256.
static byte[]	taggedHash(String tag, byte[] msg)

Methods inherited from class java.lang.Object

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

Field Detail

SIGHASH_ALL

public static final Int SIGHASH_ALL

Constant SIGHASH_ALL

SIGHASH_NONE

public static final Int SIGHASH_NONE

Constant SIGHASH_NONE

SIGHASH_SINGLE

public static final Int SIGHASH_SINGLE

Constant SIGHASH_SINGLE

Method Detail

sha1

public static byte[] sha1(byte[] bytes)

sha1.

Parameters:

bytes - an array of byte objects

Returns:

an array of byte objects

getDigestSha256

public static MessageDigest getDigestSha256()

sha256

public static byte[] sha256(byte[] bytes)

sha256.

Parameters:

bytes - an array of byte objects

Returns:

an array of byte objects

hash160

public static byte[] hash160(byte[] bytes)

sha256 followed by ripemd160

Parameters:

bytes - an array of byte objects

Returns:

an array of byte objects

hash256

public static byte[] hash256(byte[] bytes)

two rounds of sha256

Parameters:

bytes - an array of byte objects

Returns:

an array of byte objects

hash256

public static byte[] hash256(MessageDigest digest,
                             byte[] bytes)

hmacS256Init

public static Mac hmacS256Init(byte[] key)

hmacS256Init.

Parameters:

key - an array of byte objects

Returns:

a Mac object

hmacS512Init

public static Mac hmacS512Init(byte[] key)

hmacS512Init.

Parameters:

key - an array of byte objects

Returns:

a Mac object

taggedHash

public static byte[] taggedHash(String tag,
                                byte[] msg)