org.bitcoin

Class NativeSecp256k1

java.lang.Object

org.bitcoin.NativeSecp256k1

public class NativeSecp256k1
extends Object

This class holds native methods to handle ECDSA verification.

You can find an example library that can be used for this at https://github.com/bitcoin/secp256k1

To build secp256k1 for use with bitcoinj, run `./configure` and `make libjavasecp256k1.so` then copy libjavasecp256k1.so to your system library path or point the JVM to the folder containing it with -Djava.library.path

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	enabled

Constructor Summary

Constructors

Constructor and Description
NativeSecp256k1()

Method Summary

Modifier and Type	Method and Description
static boolean	verify(byte[] data, byte[] signature, byte[] pub) Verifies the given secp256k1 signature in native code.

Methods inherited from class java.lang.Object

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

Field Detail

enabled

public static boolean enabled

Constructor Detail

NativeSecp256k1

public NativeSecp256k1()

Method Detail

verify

public static boolean verify(byte[] data,
                             byte[] signature,
                             byte[] pub)

Verifies the given secp256k1 signature in native code. Calling when enabled == false is undefined (probably library not loaded)

Parameters:

data - The data which was signed, must be exactly 32 bytes

signature - The signature

pub - The public key which did the signing