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javax.crypto
Class KeyAgreementSpi
java.lang.Objectjavax.crypto.KeyAgreementSpi
- public abstract class KeyAgreementSpi
- extends java.lang.Object
This is the Service Provider Interface (SPI) for the KeyAgreement class.
Providers wishing to implement a key agreement algorithm must
subclass this and provide an appropriate implementation for all the
abstract methods below, and provide an appropriate entry in the
master java.security.Provider class (the service name for key
agreement algorithms is "KeyAgreement").
- Since:
- 1.4
| Constructor Summary | |
KeyAgreementSpi()
Create a new KeyAgreementSpi instance. |
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| Method Summary | |
protected abstract java.security.Key |
engineDoPhase(java.security.Key key,
boolean lastPhase)
Do a phase in the key agreement. |
protected abstract byte[] |
engineGenerateSecret()
Generate the shared secret in a new byte array. |
protected abstract int |
engineGenerateSecret(byte[] sharedSecret,
int offset)
Generate the shared secret, storing it into the specified array. |
protected abstract SecretKey |
engineGenerateSecret(java.lang.String algorithm)
Generate the shared secret and return it as a SecretKey. |
protected abstract void |
engineInit(java.security.Key key,
java.security.spec.AlgorithmParameterSpec params,
java.security.SecureRandom random)
Initialize this key agreement with a key, parameters, and source of randomness. |
protected abstract void |
engineInit(java.security.Key key,
java.security.SecureRandom random)
Initialize this key agreement with a key and source of randomness. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
KeyAgreementSpi
public KeyAgreementSpi()
- Create a new KeyAgreementSpi instance.
| Method Detail |
engineDoPhase
protected abstract java.security.Key engineDoPhase(java.security.Key key, boolean lastPhase) throws java.lang.IllegalStateException, java.security.InvalidKeyException
- Do a phase in the key agreement.
engineGenerateSecret
protected abstract byte[] engineGenerateSecret()
throws java.lang.IllegalStateException
- Generate the shared secret in a new byte array.
engineGenerateSecret
protected abstract int engineGenerateSecret(byte[] sharedSecret,
int offset)
throws java.lang.IllegalStateException,
ShortBufferException
- Generate the shared secret, storing it into the specified array.
engineGenerateSecret
protected abstract SecretKey engineGenerateSecret(java.lang.String algorithm) throws java.lang.IllegalStateException, java.security.InvalidKeyException, java.security.NoSuchAlgorithmException
- Generate the shared secret and return it as a SecretKey.
engineInit
protected abstract void engineInit(java.security.Key key, java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random) throws java.security.InvalidAlgorithmParameterException, java.security.InvalidKeyException
- Initialize this key agreement with a key, parameters, and source of
randomness.
engineInit
protected abstract void engineInit(java.security.Key key, java.security.SecureRandom random) throws java.security.InvalidKeyException
- Initialize this key agreement with a key and source of randomness.
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