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java.lang.Objectjavax.crypto.ExemptionMechanismSpi
public abstract class ExemptionMechanismSpi
The Service Provider Interface (SPI) for the ExemptionMechanism class.
| Constructor Summary | |
|---|---|
ExemptionMechanismSpi()
Create a new exemption mechanism SPI. |
|
| Method Summary | |
|---|---|
protected abstract byte[] |
engineGenExemptionBlob()
Return a key blob for the key that this mechanism was initialized with. |
protected abstract int |
engineGenExemptionBlob(byte[] output,
int outputOffset)
Generate a key blob for the key that this mechanism was initialized with, storing it into the given byte array. |
protected abstract int |
engineGetOutputSize(int inputLength)
Get the size of the output blob given an input key size. |
protected abstract void |
engineInit(Key key)
Initialize this mechanism with a key. |
protected abstract void |
engineInit(Key key,
AlgorithmParameters params)
Initialize this mechanism with a key and parameters. |
protected abstract void |
engineInit(Key key,
AlgorithmParameterSpec params)
Initialize this mechanism with a key and parameters. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public ExemptionMechanismSpi()
| Method Detail |
|---|
protected abstract byte[] engineGenExemptionBlob()
throws ExemptionMechanismException
ExemptionMechanismException - If generating the
blob fails.
protected abstract int engineGenExemptionBlob(byte[] output,
int outputOffset)
throws ExemptionMechanismException,
ShortBufferException
output - The destination for the key blob.outputOffset - The index in the output array to start.
ExemptionMechanismException - If generating the
blob fails.
ShortBufferException - If the output array is
not large enough for the key blob.protected abstract int engineGetOutputSize(int inputLength)
inputLength - The input size.
protected abstract void engineInit(Key key)
throws ExemptionMechanismException,
InvalidKeyException
key - The key.
ExemptionMechanismException - If generating the
blob fails.
InvalidKeyException - If the supplied key
cannot be used.
protected abstract void engineInit(Key key,
AlgorithmParameters params)
throws ExemptionMechanismException,
InvalidAlgorithmParameterException,
InvalidKeyException
key - The key.params - The parameters.
ExemptionMechanismException - If generating the
blob fails.
java.security.InvalidAlgorithmParameterExceptin - If the
supplied parameters are inappropriate.
InvalidKeyException - If the supplied key
cannot be used.
InvalidAlgorithmParameterException
protected abstract void engineInit(Key key,
AlgorithmParameterSpec params)
throws ExemptionMechanismException,
InvalidAlgorithmParameterException,
InvalidKeyException
key - The key.params - The parameters.
ExemptionMechanismException - If generating the
blob fails.
java.security.InvalidAlgorithmParameterExceptin - If the
supplied parameters are inappropriate.
InvalidKeyException - If the supplied key
cannot be used.
InvalidAlgorithmParameterException
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