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2362N/A * by Oracle in the LICENSE file that accompanied this code.
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0N/A */
0N/A
0N/Apackage javax.crypto;
0N/A
0N/Aimport java.security.*;
0N/Aimport java.security.spec.*;
0N/A
0N/A/**
0N/A * This class defines the <i>Service Provider Interface</i> (<b>SPI</b>)
0N/A * for the <code>KeyGenerator</code> class.
0N/A * All the abstract methods in this class must be implemented by each
0N/A * cryptographic service provider who wishes to supply the implementation
0N/A * of a key generator for a particular algorithm.
0N/A *
0N/A * @author Jan Luehe
0N/A *
0N/A * @see SecretKey
0N/A * @since 1.4
0N/A */
0N/A
0N/Apublic abstract class KeyGeneratorSpi {
0N/A
0N/A /**
0N/A * Initializes the key generator.
0N/A *
0N/A * @param random the source of randomness for this generator
0N/A */
0N/A protected abstract void engineInit(SecureRandom random);
0N/A
0N/A /**
0N/A * Initializes the key generator with the specified parameter
0N/A * set and a user-provided source of randomness.
0N/A *
0N/A * @param params the key generation parameters
0N/A * @param random the source of randomness for this key generator
0N/A *
0N/A * @exception InvalidAlgorithmParameterException if <code>params</code> is
0N/A * inappropriate for this key generator
0N/A */
0N/A protected abstract void engineInit(AlgorithmParameterSpec params,
0N/A SecureRandom random)
0N/A throws InvalidAlgorithmParameterException;
0N/A
0N/A /**
0N/A * Initializes this key generator for a certain keysize, using the given
0N/A * source of randomness.
0N/A *
0N/A * @param keysize the keysize. This is an algorithm-specific metric,
0N/A * specified in number of bits.
0N/A * @param random the source of randomness for this key generator
0N/A *
0N/A * @exception InvalidParameterException if the keysize is wrong or not
0N/A * supported.
0N/A */
0N/A protected abstract void engineInit(int keysize, SecureRandom random);
0N/A
0N/A /**
0N/A * Generates a secret key.
0N/A *
0N/A * @return the new key
0N/A */
0N/A protected abstract SecretKey engineGenerateKey();
0N/A}