io.neow3j.crypto

Class ECKeyPair

java.lang.Object

io.neow3j.crypto.ECKeyPair

Direct Known Subclasses:

Bip32ECKeyPair

public class ECKeyPair
extends java.lang.Object

Elliptic Curve SECP-256r1 generated key pair.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ECKeyPair.ECPrivateKey
static class	ECKeyPair.ECPublicKey

Constructor Summary

Constructors

Constructor and Description
ECKeyPair(ECKeyPair.ECPrivateKey privateKey, ECKeyPair.ECPublicKey publicKey)

Method Summary

Modifier and Type	Method and Description
static ECKeyPair	create(java.math.BigInteger privateKey) Creates an EC key pair from a private key.
static ECKeyPair	create(byte[] privateKey) Creates an EC key pair from a private key.
static ECKeyPair	create(ECKeyPair.ECPrivateKey privateKey) Creates an EC key pair from a private key.
static ECKeyPair	create(java.security.KeyPair keyPair) Creates an EC key pair from a key pair.
static ECKeyPair	createEcKeyPair() Create a keypair using SECP-256r1 curve.
boolean	equals(java.lang.Object o)
java.lang.String	exportAsWIF() Creates a WIF of this ECKeyPair.
java.lang.String	getAddress() Constructs the NEO address from this key pairs public key.
ECKeyPair.ECPrivateKey	getPrivateKey() Gets the private key of this EC key pair.
ECKeyPair.ECPublicKey	getPublicKey() Gets the public key of this EC key pair.
int	hashCode()
java.math.BigInteger[]	sign(byte[] transactionHash) Sign a hash with the private key of this key pair.
byte[]	signAndGetArrayBytes(byte[] transactionHash) Sign a hash with the private key of this key pair.
ECDSASignature	signAndGetECDSASignature(byte[] transactionHash) Sign a hash with the private key of this key pair.

Methods inherited from class java.lang.Object

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

Constructor Detail

ECKeyPair

public ECKeyPair(ECKeyPair.ECPrivateKey privateKey,
                 ECKeyPair.ECPublicKey publicKey)

Method Detail

getPrivateKey

public ECKeyPair.ECPrivateKey getPrivateKey()

Gets the private key of this EC key pair.

Returns:

the private key.

getPublicKey

public ECKeyPair.ECPublicKey getPublicKey()

Gets the public key of this EC key pair.

Returns:

the public key.

getAddress

public java.lang.String getAddress()

Constructs the NEO address from this key pairs public key.

The address is constructed ad hoc each time this method is called.

Returns:

the NEO address of the public key.

sign

public java.math.BigInteger[] sign(byte[] transactionHash)

Sign a hash with the private key of this key pair.

Parameters:

transactionHash - the hash to sign

Returns:

A raw BigInteger array with the signature

signAndGetECDSASignature

public ECDSASignature signAndGetECDSASignature(byte[] transactionHash)

Sign a hash with the private key of this key pair.

Parameters:

transactionHash - the hash to sign

Returns:

An ECDSASignature of the hash

signAndGetArrayBytes

public byte[] signAndGetArrayBytes(byte[] transactionHash)

Sign a hash with the private key of this key pair.

Parameters:

transactionHash - the hash to sign

Returns:

A byte array with the canonicalized signature

create

public static ECKeyPair create(java.security.KeyPair keyPair)

Creates an EC key pair from a key pair.

Parameters:

keyPair - the key pair.

Returns:

the EC key pair.

create

public static ECKeyPair create(ECKeyPair.ECPrivateKey privateKey)

Creates an EC key pair from a private key.

Parameters:

privateKey - the private key.

Returns:

the EC key pair.

create

public static ECKeyPair create(java.math.BigInteger privateKey)

Creates an EC key pair from a private key.

Parameters:

privateKey - the private key.

Returns:

the EC key pair.

create

public static ECKeyPair create(byte[] privateKey)

Creates an EC key pair from a private key.

Parameters:

privateKey - the private key.

Returns:

the EC key pair.

createEcKeyPair

public static ECKeyPair createEcKeyPair()
                                 throws java.security.InvalidAlgorithmParameterException,
                                        java.security.NoSuchAlgorithmException,
                                        java.security.NoSuchProviderException

Create a keypair using SECP-256r1 curve.

Private keypairs are encoded using PKCS8.

Private keys are encoded using X.509.

Returns:

The created ECKeyPair.

Throws:

java.security.InvalidAlgorithmParameterException - throws if the algorithm parameter used is invalid.

java.security.NoSuchAlgorithmException - throws if the encryption algorithm is not available in the specified provider.

java.security.NoSuchProviderException - throws if the provider is not available.

exportAsWIF

public java.lang.String exportAsWIF()

Creates a WIF of this ECKeyPair.

Returns:

the WIF of this ECKeyPair.

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object