Package com.ellipticsecure.ehsm

Class Base58

java.lang.Object

com.ellipticsecure.ehsm.Base58

public class Base58
extends Object

A custom form of base58 is used to encode BitCoin addresses. Note that this is not the same base58 as used by Flickr, which you may see reference to around the internet. Satoshi says: why base-58 instead of standard base-64 encoding?

• Don't want 0OIl characters that look the same in some fonts and could be used to create visually identical looking account numbers.
• A string with non-alphanumeric characters is not as easily accepted as an account number.
• E-mail usually won't line-break if there's no punctuation to break at.
• Doubleclicking selects the whole number as one word if it's all alphanumeric.

Constructor Summary

Constructors

Constructor	Description
Base58()

Method Summary

Modifier and Type	Method	Description
static byte[]	doubleDigest(byte[] input, int offset, int length)
static String	encode(byte[] input)
static String	encodeChecked(byte[] payload)	Encodes bytes as a base58 string.

Methods inherited from class java.lang.Object

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

Constructor Detail

Base58

public Base58()

Method Detail

encode

public static String encode(byte[] input)

encodeChecked

public static String encodeChecked(byte[] payload)

Encodes bytes as a base58 string. A checksum is appended.

Parameters:

payload - the bytes to encode, e.g. pubkey hash

Returns:

the base58-encoded string

doubleDigest

public static byte[] doubleDigest(byte[] input,
                                  int offset,
                                  int length)