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org.bouncycastle.jcajce.provider.asymmetric.ec

public Class KeyAgreementSpi

extends BaseAgreementSpi
Class Inheritance
Known Direct Subclasses
org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DH, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHC, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQV, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUC, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHwithSHA1KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHwithSHA1KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.CDHwithSHA1KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHwithSHA224KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.CDHwithSHA224KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHwithSHA256KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.CDHwithSHA256KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHwithSHA384KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.CDHwithSHA384KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHwithSHA512KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.CDHwithSHA512KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA1KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA224KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA256KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA384KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA512KDFAndSharedInfo, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHwithSHA1CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHwithSHA256CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHwithSHA384CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHwithSHA512CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA1CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA224CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA256CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA384CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA512CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA1KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA224KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA256KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA384KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.MQVwithSHA512KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUwithSHA1CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUwithSHA224CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUwithSHA256CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUwithSHA384CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUwithSHA512CKDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUwithSHA1KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUwithSHA224KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUwithSHA256KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUwithSHA384KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.DHUwithSHA512KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.ECKAEGwithSHA1KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.ECKAEGwithRIPEMD160KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.ECKAEGwithSHA224KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.ECKAEGwithSHA256KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.ECKAEGwithSHA384KDF, org.bouncycastle.jcajce.provider.asymmetric.ec.KeyAgreementSpi.ECKAEGwithSHA512KDF
Imports
java.math.BigInteger, java.security.InvalidAlgorithmParameterException, .InvalidKeyException, .Key, .PrivateKey, .PublicKey, .SecureRandom, java.security.spec.AlgorithmParameterSpec, org.bouncycastle.asn1.x9.X9IntegerConverter, org.bouncycastle.crypto.BasicAgreement, .CipherParameters, .DerivationFunction, org.bouncycastle.crypto.agreement.ECDHBasicAgreement, .ECDHCBasicAgreement, .ECDHCUnifiedAgreement, .ECMQVBasicAgreement, org.bouncycastle.crypto.agreement.kdf.ConcatenationKDFGenerator, org.bouncycastle.crypto.digests.RIPEMD160Digest, org.bouncycastle.crypto.generators.KDF2BytesGenerator, org.bouncycastle.crypto.params.ECDHUPrivateParameters, .ECDHUPublicParameters, .ECDomainParameters, .ECPrivateKeyParameters, .ECPublicKeyParameters, .MQVPrivateParameters, .MQVPublicParameters, org.bouncycastle.crypto.util.DigestFactory, org.bouncycastle.jcajce.provider.asymmetric.util.BaseAgreementSpi, org.bouncycastle.jcajce.spec.DHUParameterSpec, .MQVParameterSpec, .UserKeyingMaterialSpec, org.bouncycastle.jce.interfaces.ECPrivateKey, .ECPublicKey, .MQVPrivateKey, .MQVPublicKey, org.bouncycastle.util.Arrays
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 and Inner Type Summary

Modifier and TypeClass and Description
public static class
KeyAgreementSpi.CDHwithSHA1KDFAndSharedInfo

public static class
KeyAgreementSpi.CDHwithSHA224KDFAndSharedInfo

public static class
KeyAgreementSpi.CDHwithSHA256KDFAndSharedInfo

public static class
KeyAgreementSpi.CDHwithSHA384KDFAndSharedInfo

public static class
KeyAgreementSpi.CDHwithSHA512KDFAndSharedInfo

public static class
KeyAgreementSpi.DH

public static class
KeyAgreementSpi.DHC

public static class
KeyAgreementSpi.DHUC

public static class
KeyAgreementSpi.DHUwithSHA1CKDF

public static class
KeyAgreementSpi.DHUwithSHA1KDF

public static class
KeyAgreementSpi.DHUwithSHA224CKDF

public static class
KeyAgreementSpi.DHUwithSHA224KDF

public static class
KeyAgreementSpi.DHUwithSHA256CKDF

public static class
KeyAgreementSpi.DHUwithSHA256KDF

public static class
KeyAgreementSpi.DHUwithSHA384CKDF

public static class
KeyAgreementSpi.DHUwithSHA384KDF

public static class
KeyAgreementSpi.DHUwithSHA512CKDF

public static class
KeyAgreementSpi.DHUwithSHA512KDF

public static class
KeyAgreementSpi.DHwithSHA1CKDF

public static class
KeyAgreementSpi.DHwithSHA1KDF

public static class
KeyAgreementSpi.DHwithSHA1KDFAndSharedInfo

public static class
KeyAgreementSpi.DHwithSHA224KDFAndSharedInfo

public static class
KeyAgreementSpi.DHwithSHA256CKDF

public static class
KeyAgreementSpi.DHwithSHA256KDFAndSharedInfo

public static class
KeyAgreementSpi.DHwithSHA384CKDF

public static class
KeyAgreementSpi.DHwithSHA384KDFAndSharedInfo

public static class
KeyAgreementSpi.DHwithSHA512CKDF

public static class
KeyAgreementSpi.DHwithSHA512KDFAndSharedInfo

public static class
KeyAgreementSpi.ECKAEGwithRIPEMD160KDF

KeyAgreement according to BSI TR-03111 chapter 4.3.1

public static class
KeyAgreementSpi.ECKAEGwithSHA1KDF

KeyAgreement according to BSI TR-03111 chapter 4.3.1

public static class
KeyAgreementSpi.ECKAEGwithSHA224KDF

KeyAgreement according to BSI TR-03111 chapter 4.3.1

public static class
KeyAgreementSpi.ECKAEGwithSHA256KDF

KeyAgreement according to BSI TR-03111 chapter 4.3.1

public static class
KeyAgreementSpi.ECKAEGwithSHA384KDF

KeyAgreement according to BSI TR-03111 chapter 4.3.1

public static class
KeyAgreementSpi.ECKAEGwithSHA512KDF

KeyAgreement according to BSI TR-03111 chapter 4.3.1

public static class
KeyAgreementSpi.MQV

public static class
KeyAgreementSpi.MQVwithSHA1CKDF

public static class
KeyAgreementSpi.MQVwithSHA1KDF

public static class
KeyAgreementSpi.MQVwithSHA1KDFAndSharedInfo

public static class
KeyAgreementSpi.MQVwithSHA224CKDF

public static class
KeyAgreementSpi.MQVwithSHA224KDF

public static class
KeyAgreementSpi.MQVwithSHA224KDFAndSharedInfo

public static class
KeyAgreementSpi.MQVwithSHA256CKDF

public static class
KeyAgreementSpi.MQVwithSHA256KDF

public static class
KeyAgreementSpi.MQVwithSHA256KDFAndSharedInfo

public static class
KeyAgreementSpi.MQVwithSHA384CKDF

public static class
KeyAgreementSpi.MQVwithSHA384KDF

public static class
KeyAgreementSpi.MQVwithSHA384KDFAndSharedInfo

public static class
KeyAgreementSpi.MQVwithSHA512CKDF

public static class
KeyAgreementSpi.MQVwithSHA512KDF

public static class
KeyAgreementSpi.MQVwithSHA512KDFAndSharedInfo

Field Summary

Modifier and TypeField and Description
private Object
agreement

private static final X9IntegerConverter
converter

private DHUParameterSpec
dheParameters

private String
kaAlgorithm

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

private MQVParameterSpec
mqvParameters

private ECDomainParameters
parameters

private byte[]
result

Inherited from org.bouncycastle.jcajce.provider.asymmetric.util.BaseAgreementSpi:
kdfukmParametersukmParametersSalt

Constructor Summary

AccessConstructor and Description
protected
KeyAgreementSpi(String kaAlgorithm, BasicAgreement agreement, DerivationFunction kdf)

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

Method Summary

Modifier and TypeMethod and Description
protected byte[]
bigIntToBytes(BigInteger r)

protected byte[]
doCalcSecret()

Implements abstract org.bouncycastle.jcajce.provider.asymmetric.util.BaseAgreementSpi.doCalcSecret.

protected void
doInitFromKey(Key key, AlgorithmParameterSpec parameterSpec, SecureRandom random)

Implements abstract org.bouncycastle.jcajce.provider.asymmetric.util.BaseAgreementSpi.doInitFromKey.

protected Key
engineDoPhase(Key
the key for this phase. For example, in the case of Diffie-Hellman between 2 parties, this would be the other party's Diffie-Hellman public key.
key, boolean
flag which indicates whether this is the last phase of this key agreement.
lastPhase)

Implements abstract javax.crypto.KeyAgreementSpi.engineDoPhase.

Executes the next phase of this key agreement with the given key that was received from one of the other parties involved in this key agreement.

private static String
getSimpleName(Class<T> clazz)

Inherited from org.bouncycastle.jcajce.provider.asymmetric.util.BaseAgreementSpi:
engineGenerateSecretengineGenerateSecretengineGenerateSecretengineInitengineInitgetAlgorithmgetKeySizetrimZeroes