Package org.bouncycastle.jcajce.provider.asymmetric.ec

Class KeyAgreementSpi

java.lang.Object

javax.crypto.KeyAgreementSpi

org.bouncycastle.jcajce.provider.asymmetric.util.BaseAgreementSpi

org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi

Direct Known Subclasses:

KeyAgreementSpi.CDHwithSHA1KDFAndSharedInfo, KeyAgreementSpi.CDHwithSHA224KDFAndSharedInfo, KeyAgreementSpi.CDHwithSHA256KDFAndSharedInfo, KeyAgreementSpi.CDHwithSHA384KDFAndSharedInfo, KeyAgreementSpi.CDHwithSHA512KDFAndSharedInfo, KeyAgreementSpi.DH, KeyAgreementSpi.DHC, KeyAgreementSpi.DHUC, KeyAgreementSpi.DHUwithSHA1CKDF, KeyAgreementSpi.DHUwithSHA1KDF, KeyAgreementSpi.DHUwithSHA224CKDF, KeyAgreementSpi.DHUwithSHA224KDF, KeyAgreementSpi.DHUwithSHA256CKDF, KeyAgreementSpi.DHUwithSHA256KDF, KeyAgreementSpi.DHUwithSHA384CKDF, KeyAgreementSpi.DHUwithSHA384KDF, KeyAgreementSpi.DHUwithSHA512CKDF, KeyAgreementSpi.DHUwithSHA512KDF, KeyAgreementSpi.DHwithSHA1CKDF, KeyAgreementSpi.DHwithSHA1KDF, KeyAgreementSpi.DHwithSHA1KDFAndSharedInfo, KeyAgreementSpi.DHwithSHA224KDFAndSharedInfo, KeyAgreementSpi.DHwithSHA256CKDF, KeyAgreementSpi.DHwithSHA256KDFAndSharedInfo, KeyAgreementSpi.DHwithSHA384CKDF, KeyAgreementSpi.DHwithSHA384KDFAndSharedInfo, KeyAgreementSpi.DHwithSHA512CKDF, KeyAgreementSpi.DHwithSHA512KDFAndSharedInfo, KeyAgreementSpi.ECKAEGwithRIPEMD160KDF, KeyAgreementSpi.ECKAEGwithSHA1KDF, KeyAgreementSpi.ECKAEGwithSHA224KDF, KeyAgreementSpi.ECKAEGwithSHA256KDF, KeyAgreementSpi.ECKAEGwithSHA384KDF, KeyAgreementSpi.ECKAEGwithSHA512KDF, KeyAgreementSpi.MQV, KeyAgreementSpi.MQVwithSHA1CKDF, KeyAgreementSpi.MQVwithSHA1KDF, KeyAgreementSpi.MQVwithSHA1KDFAndSharedInfo, KeyAgreementSpi.MQVwithSHA224CKDF, KeyAgreementSpi.MQVwithSHA224KDF, KeyAgreementSpi.MQVwithSHA224KDFAndSharedInfo, KeyAgreementSpi.MQVwithSHA256CKDF, KeyAgreementSpi.MQVwithSHA256KDF, KeyAgreementSpi.MQVwithSHA256KDFAndSharedInfo, KeyAgreementSpi.MQVwithSHA384CKDF, KeyAgreementSpi.MQVwithSHA384KDF, KeyAgreementSpi.MQVwithSHA384KDFAndSharedInfo, KeyAgreementSpi.MQVwithSHA512CKDF, KeyAgreementSpi.MQVwithSHA512KDF, KeyAgreementSpi.MQVwithSHA512KDFAndSharedInfo

public class KeyAgreementSpi
extends BaseAgreementSpi

Diffie-Hellman key agreement using elliptic curve keys, ala IEEE P1363 both the simple one, and the simple one with cofactors are supported.

Also, MQV key agreement per SEC-1

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	KeyAgreementSpi.CDHwithSHA1KDFAndSharedInfo
static class	KeyAgreementSpi.CDHwithSHA224KDFAndSharedInfo
static class	KeyAgreementSpi.CDHwithSHA256KDFAndSharedInfo
static class	KeyAgreementSpi.CDHwithSHA384KDFAndSharedInfo
static class	KeyAgreementSpi.CDHwithSHA512KDFAndSharedInfo
static class	KeyAgreementSpi.DH
static class	KeyAgreementSpi.DHC
static class	KeyAgreementSpi.DHUC
static class	KeyAgreementSpi.DHUwithSHA1CKDF
static class	KeyAgreementSpi.DHUwithSHA1KDF
static class	KeyAgreementSpi.DHUwithSHA224CKDF
static class	KeyAgreementSpi.DHUwithSHA224KDF
static class	KeyAgreementSpi.DHUwithSHA256CKDF
static class	KeyAgreementSpi.DHUwithSHA256KDF
static class	KeyAgreementSpi.DHUwithSHA384CKDF
static class	KeyAgreementSpi.DHUwithSHA384KDF
static class	KeyAgreementSpi.DHUwithSHA512CKDF
static class	KeyAgreementSpi.DHUwithSHA512KDF
static class	KeyAgreementSpi.DHwithSHA1CKDF
static class	KeyAgreementSpi.DHwithSHA1KDF
static class	KeyAgreementSpi.DHwithSHA1KDFAndSharedInfo
static class	KeyAgreementSpi.DHwithSHA224KDFAndSharedInfo
static class	KeyAgreementSpi.DHwithSHA256CKDF
static class	KeyAgreementSpi.DHwithSHA256KDFAndSharedInfo
static class	KeyAgreementSpi.DHwithSHA384CKDF
static class	KeyAgreementSpi.DHwithSHA384KDFAndSharedInfo
static class	KeyAgreementSpi.DHwithSHA512CKDF
static class	KeyAgreementSpi.DHwithSHA512KDFAndSharedInfo
static class	KeyAgreementSpi.ECKAEGwithRIPEMD160KDF	KeyAgreement according to BSI TR-03111 chapter 4.3.1
static class	KeyAgreementSpi.ECKAEGwithSHA1KDF	KeyAgreement according to BSI TR-03111 chapter 4.3.1
static class	KeyAgreementSpi.ECKAEGwithSHA224KDF	KeyAgreement according to BSI TR-03111 chapter 4.3.1
static class	KeyAgreementSpi.ECKAEGwithSHA256KDF	KeyAgreement according to BSI TR-03111 chapter 4.3.1
static class	KeyAgreementSpi.ECKAEGwithSHA384KDF	KeyAgreement according to BSI TR-03111 chapter 4.3.1
static class	KeyAgreementSpi.ECKAEGwithSHA512KDF	KeyAgreement according to BSI TR-03111 chapter 4.3.1
static class	KeyAgreementSpi.MQV
static class	KeyAgreementSpi.MQVwithSHA1CKDF
static class	KeyAgreementSpi.MQVwithSHA1KDF
static class	KeyAgreementSpi.MQVwithSHA1KDFAndSharedInfo
static class	KeyAgreementSpi.MQVwithSHA224CKDF
static class	KeyAgreementSpi.MQVwithSHA224KDF
static class	KeyAgreementSpi.MQVwithSHA224KDFAndSharedInfo
static class	KeyAgreementSpi.MQVwithSHA256CKDF
static class	KeyAgreementSpi.MQVwithSHA256KDF
static class	KeyAgreementSpi.MQVwithSHA256KDFAndSharedInfo
static class	KeyAgreementSpi.MQVwithSHA384CKDF
static class	KeyAgreementSpi.MQVwithSHA384KDF
static class	KeyAgreementSpi.MQVwithSHA384KDFAndSharedInfo
static class	KeyAgreementSpi.MQVwithSHA512CKDF
static class	KeyAgreementSpi.MQVwithSHA512KDF
static class	KeyAgreementSpi.MQVwithSHA512KDFAndSharedInfo

Field Summary

Fields inherited from class org.bouncycastle.jcajce.provider.asymmetric.util.BaseAgreementSpi

kdf, ukmParameters

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	KeyAgreementSpi(String kaAlgorithm, ECDHCUnifiedAgreement agreement, DerivationFunction kdf)
protected	KeyAgreementSpi(String kaAlgorithm, BasicAgreement agreement, DerivationFunction kdf)

Method Summary

Modifier and Type	Method	Description
protected byte[]	bigIntToBytes(BigInteger r)
protected byte[]	calcSecret()
protected Key	engineDoPhase(Key key, boolean lastPhase)
protected void	engineInit(Key key, SecureRandom random)
protected void	engineInit(Key key, AlgorithmParameterSpec params, SecureRandom random)

Methods inherited from class org.bouncycastle.jcajce.provider.asymmetric.util.BaseAgreementSpi

engineGenerateSecret, engineGenerateSecret, engineGenerateSecret, getAlgorithm, getKeySize, trimZeroes

Methods inherited from class java.lang.Object

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

Constructor Details

KeyAgreementSpi

protected KeyAgreementSpi(String kaAlgorithm,
 BasicAgreement agreement,
 DerivationFunction kdf)

KeyAgreementSpi

protected KeyAgreementSpi(String kaAlgorithm,
 ECDHCUnifiedAgreement agreement,
 DerivationFunction kdf)

Method Details

bigIntToBytes

protected byte[] bigIntToBytes(BigInteger r)

engineDoPhase

protected Key engineDoPhase(Key key,
 boolean lastPhase)
                     throws InvalidKeyException,
IllegalStateException

Specified by:

engineDoPhase in class KeyAgreementSpi

Throws:

InvalidKeyException

IllegalStateException

engineInit

protected void engineInit(Key key,
 AlgorithmParameterSpec params,
 SecureRandom random)
                   throws InvalidKeyException,
InvalidAlgorithmParameterException

Specified by:

engineInit in class KeyAgreementSpi

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

engineInit

protected void engineInit(Key key,
 SecureRandom random)
                   throws InvalidKeyException

Specified by:

engineInit in class KeyAgreementSpi

Throws:

InvalidKeyException

calcSecret

protected byte[] calcSecret()

Specified by:

calcSecret in class BaseAgreementSpi