File	Doc	Category	Size	Date	Package
ExemptionMechanismSpi.java	API Doc	Android 1.5 API	5372	Wed May 06 22:41:02 BST 2009	javax.crypto

ExemptionMechanismSpi

• java.lang.Object

Fields Summary

Constructors Summary
public ExemptionMechanismSpi() Creates a new {@code ExemptionMechanismSpi} instance. since Android 1.0

Methods Summary
protected abstract byte[]	engineGenExemptionBlob() Generates the result key blob for this exemption mechanism. return the result key blob for this exemption mechanism. throws ExemptionMechanismException if error(s) occur during generation. since Android 1.0
protected abstract int	engineGenExemptionBlob(byte[] output, int outputOffset) Generates the result key blob for this exemption mechanism and stores it into the {@code output} buffer at offset {@code outputOffset}. param output the output buffer for the result key blob. param outputOffset the offset in the output buffer to start. return the number of bytes written to the {@code output} buffer. throws ShortBufferException if the provided buffer is too small for the result key blob. throws ExemptionMechanismException if error(s) occur during generation. since Android 1.0
protected abstract int	engineGetOutputSize(int inputLen) Returns the size in bytes for the output buffer needed to hold the output of the next {@link #engineGenExemptionBlob} call, given the specified {@code inputLen} (in bytes). param inputLen the specified input length (in bytes). return the size in bytes for the output buffer.
protected abstract void	engineInit(java.security.Key key) Initializes this {@code ExemptionMechanism} instance with the specified key. param key the key to initialize this instance with. throws InvalidKeyException if the key cannot be used to initialize this mechanism. throws ExemptionMechanismException if error(s) occur during initialization. since Android 1.0
protected abstract void	engineInit(java.security.Key key, java.security.AlgorithmParameters params) Initializes this {@code ExemptionMechanism} instance with the specified key and algorithm parameters. param key the key to initialize this instance with. param params the parameters for this exemption mechanism algorithm. throws InvalidKeyException if the key cannot be used to initialize this mechanism. throws InvalidAlgorithmParameterException if the parameters cannot be used to initialize this mechanism. throws ExemptionMechanismException if error(s) occur during initialization. since Android 1.0
protected abstract void	engineInit(java.security.Key key, java.security.spec.AlgorithmParameterSpec params) Initializes this {@code ExemptionMechanism} instance with the specified key and algorithm parameters. param key the key to initialize this instance with. param params the parameters for this exemption mechanism algorithm. throws InvalidKeyException if the key cannot be used to initialize this mechanism. throws InvalidAlgorithmParameterException the the parameters cannot be used to initialize this mechanism. throws ExemptionMechanismException if error(s) occur during initialization. since Android 1.0