- java.lang.Object
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- javax.crypto.KeyGeneratorSpi
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- com.ibm.crypto.hdwrCCA.provider.HmacSHA224KeyGenerator
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public final class HmacSHA224KeyGenerator extends javax.crypto.KeyGeneratorSpi
This class generates a secret key for use with the HMAC-SHA224 algorithm.
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Constructor Summary
Constructors Constructor Description HmacSHA224KeyGenerator()
Verify the JCE framework.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected javax.crypto.SecretKey
engineGenerateKey()
Generates an HMAC-SHA key.protected void
engineInit(int keysize, java.security.SecureRandom random)
Initializes this key generator for a certain keysize, using the given source of randomness.protected void
engineInit(java.security.SecureRandom random)
Initializes this key generator.protected void
engineInit(java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random)
Initializes this key generator with the specified parameter set and a user-provided source of randomness.
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Method Detail
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engineInit
protected void engineInit(java.security.SecureRandom random)
Initializes this key generator.- Specified by:
engineInit
in classjavax.crypto.KeyGeneratorSpi
- Parameters:
random
- the source of randomness for this generator
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engineInit
protected void engineInit(java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random) throws java.security.InvalidAlgorithmParameterException
Initializes this key generator with the specified parameter set and a user-provided source of randomness.- Specified by:
engineInit
in classjavax.crypto.KeyGeneratorSpi
- Parameters:
params
- the key generation parametersrandom
- the source of randomness for this key generator- Throws:
java.security.InvalidAlgorithmParameterException
- ifparams
is inappropriate for this key generator
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engineInit
protected void engineInit(int keysize, java.security.SecureRandom random)
Initializes this key generator for a certain keysize, using the given source of randomness.- Specified by:
engineInit
in classjavax.crypto.KeyGeneratorSpi
- Parameters:
keysize
- the keysize. This is an algorithm-specific metric specified in number of bits.random
- the source of randomness for this key generator
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engineGenerateKey
protected javax.crypto.SecretKey engineGenerateKey()
Generates an HMAC-SHA key.- Specified by:
engineGenerateKey
in classjavax.crypto.KeyGeneratorSpi
- Returns:
- the new HMAC-SHA key
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