org.encryptor4j

Class ECDHPeer

java.lang.Object

org.encryptor4j.KeyAgreementPeer

org.encryptor4j.ECDHPeer

public class ECDHPeer
extends KeyAgreementPeer

KeyAgreementPeer implementation that uses the Elliptic Curve Diffie-Hellman key agreement protocol.

Author:

Martin

Constructor Summary

Constructors

Constructor and Description
ECDHPeer(java.security.spec.AlgorithmParameterSpec spec) Constructs a ECDHPeer instance using an elliptic curve AlgorithmParameterSpec.
ECDHPeer(java.security.spec.AlgorithmParameterSpec spec, java.security.KeyPair keyPair) Constructs a ECDHPeer instance using an elliptic curve AlgorithmParameterSpec.
ECDHPeer(java.security.spec.AlgorithmParameterSpec spec, java.security.KeyPair keyPair, java.lang.String provider) Constructs a ECDHPeer instance using an elliptic curve AlgorithmParameterSpec and a custom provider.
ECDHPeer(java.math.BigInteger p, java.math.BigInteger a, java.math.BigInteger b, java.math.BigInteger xg, java.math.BigInteger yg, java.math.BigInteger n, int h) Constructs a ECDHPeer instance using a custom elliptic curve.
ECDHPeer(java.math.BigInteger p, java.math.BigInteger a, java.math.BigInteger b, java.math.BigInteger xg, java.math.BigInteger yg, java.math.BigInteger n, int h, java.security.KeyPair keyPair) Constructs a ECDHPeer instance using a custom elliptic curve.
ECDHPeer(java.math.BigInteger p, java.math.BigInteger a, java.math.BigInteger b, java.math.BigInteger xg, java.math.BigInteger yg, java.math.BigInteger n, int h, java.security.KeyPair keyPair, java.lang.String provider) Constructs a ECDHPeer instance using a custom elliptic curve.
ECDHPeer(java.lang.String curve) Constructs a ECDHPeer instance using a named elliptic curve curve.
ECDHPeer(java.lang.String curve, java.security.KeyPair keyPair) Constructs a ECDHPeer instance using a named elliptic curve curve.

Method Summary

Modifier and Type	Method and Description
static java.security.KeyPair	createKeyPair(java.security.spec.AlgorithmParameterSpec spec) Creates and returns an ECDH key pair for the given parameter specification.
static java.security.KeyPair	createKeyPair(java.security.spec.AlgorithmParameterSpec spec, java.security.Provider provider) Creates and returns an ECDH key pair for the given parameter specification and provider.
static java.security.KeyPair	createKeyPair(java.security.spec.AlgorithmParameterSpec spec, java.lang.String provider) Creates and returns an ECDH key pair for the given parameter specification and provider.
java.security.spec.AlgorithmParameterSpec	getAlgorithmParameterSpec() Returns the inner AlgorithmParameterSpec.

Methods inherited from class org.encryptor4j.KeyAgreementPeer

computeSharedSecret, getKeyAgreement, getPublicKey

Methods inherited from class java.lang.Object

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

Constructor Detail

ECDHPeer

public ECDHPeer(java.lang.String curve)
         throws java.security.GeneralSecurityException

Constructs a ECDHPeer instance using a named elliptic curve curve.

Note: This constructor will use Bouncy Castle (BC) as its provider.

Parameters:

curve -

Throws:

java.security.GeneralSecurityException

ECDHPeer

public ECDHPeer(java.lang.String curve,
                java.security.KeyPair keyPair)
         throws java.security.GeneralSecurityException

Constructs a ECDHPeer instance using a named elliptic curve curve.

Note: This constructor will use Bouncy Castle (BC) as its provider.

Parameters:

curve -

keyPair -

Throws:

java.security.GeneralSecurityException

ECDHPeer

public ECDHPeer(java.math.BigInteger p,
                java.math.BigInteger a,
                java.math.BigInteger b,
                java.math.BigInteger xg,
                java.math.BigInteger yg,
                java.math.BigInteger n,
                int h)
         throws java.security.GeneralSecurityException

Constructs a ECDHPeer instance using a custom elliptic curve.

Parameters:

p -

a -

b -

xg -

yg -

n -

h -

Throws:

java.security.GeneralSecurityException

ECDHPeer

public ECDHPeer(java.math.BigInteger p,
                java.math.BigInteger a,
                java.math.BigInteger b,
                java.math.BigInteger xg,
                java.math.BigInteger yg,
                java.math.BigInteger n,
                int h,
                java.security.KeyPair keyPair)
         throws java.security.GeneralSecurityException

Constructs a ECDHPeer instance using a custom elliptic curve.

Parameters:

p -

a -

b -

xg -

yg -

n -

h -

keyPair -

Throws:

java.security.GeneralSecurityException

ECDHPeer

public ECDHPeer(java.math.BigInteger p,
                java.math.BigInteger a,
                java.math.BigInteger b,
                java.math.BigInteger xg,
                java.math.BigInteger yg,
                java.math.BigInteger n,
                int h,
                java.security.KeyPair keyPair,
                java.lang.String provider)
         throws java.security.GeneralSecurityException

Constructs a ECDHPeer instance using a custom elliptic curve.

Parameters:

p -

a -

b -

xg -

yg -

n -

h -

keyPair -

provider -

Throws:

java.security.GeneralSecurityException

ECDHPeer

public ECDHPeer(java.security.spec.AlgorithmParameterSpec spec)
         throws java.security.GeneralSecurityException

Constructs a ECDHPeer instance using an elliptic curve AlgorithmParameterSpec.

Parameters:

spec -

Throws:

java.security.GeneralSecurityException

ECDHPeer

public ECDHPeer(java.security.spec.AlgorithmParameterSpec spec,
                java.security.KeyPair keyPair)
         throws java.security.GeneralSecurityException

Constructs a ECDHPeer instance using an elliptic curve AlgorithmParameterSpec.

Parameters:

spec -

keyPair -

Throws:

java.security.GeneralSecurityException

ECDHPeer

public ECDHPeer(java.security.spec.AlgorithmParameterSpec spec,
                java.security.KeyPair keyPair,
                java.lang.String provider)
         throws java.security.GeneralSecurityException

Constructs a ECDHPeer instance using an elliptic curve AlgorithmParameterSpec and a custom provider.

Parameters:

spec -

keyPair -

provider -

Throws:

java.security.GeneralSecurityException

Method Detail

getAlgorithmParameterSpec

public java.security.spec.AlgorithmParameterSpec getAlgorithmParameterSpec()

Returns the inner AlgorithmParameterSpec.

Returns:

createKeyPair

public static final java.security.KeyPair createKeyPair(java.security.spec.AlgorithmParameterSpec spec)
                                                 throws java.security.GeneralSecurityException

Creates and returns an ECDH key pair for the given parameter specification.

Parameters:

spec -

Returns:

Throws:

java.security.GeneralSecurityException

createKeyPair

public static final java.security.KeyPair createKeyPair(java.security.spec.AlgorithmParameterSpec spec,
                                                        java.lang.String provider)
                                                 throws java.security.GeneralSecurityException

Creates and returns an ECDH key pair for the given parameter specification and provider.

Parameters:

spec -

provider -

Returns:

Throws:

java.security.GeneralSecurityException

createKeyPair

public static final java.security.KeyPair createKeyPair(java.security.spec.AlgorithmParameterSpec spec,
                                                        java.security.Provider provider)
                                                 throws java.security.GeneralSecurityException

Creates and returns an ECDH key pair for the given parameter specification and provider.

Parameters:

spec -

provider -

Returns:

Throws:

java.security.GeneralSecurityException