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Oracle Fusion Middleware Crypto Java API Reference for Oracle Security Developer Tools 11g Release 1 (11.1.1) E10668-04 |
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java.lang.Object
oracle.security.crypto.core.SymmetricKeyGenerator
public class SymmetricKeyGenerator
A class for randomly generating symmetric keys.
Note: DES and Triple-DES (DES-EDE) keys are generated with odd parity. Parity may also be set and tested using the methods CryptoUtils.setKeyParity(oracle.security.crypto.core.SymmetricKey, int)
and CryptoUtils.checkKeyParity(oracle.security.crypto.core.SymmetricKey, int)
.
Field Summary | |
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protected static int |
AES128_DEFAULT_LENGTH Default key length for AES128 (16 bytes). |
protected static int |
AES192_DEFAULT_LENGTH Default key length for AES192 (24 bytes). |
protected static int |
AES256_DEFAULT_LENGTH Default key length for AES256 (32 bytes). |
protected AlgorithmIdentifier |
algID |
protected static int |
ARCFOUR_DEFAULT_LENGTH Default key length for ARCFOUR (16 bytes). |
protected static int |
BLOWFISH_DEFAULT_LENGTH Default key length for BLOWFISH (56 bytes). |
protected static int |
DES_DEFAULT_LENGTH Default key length for DES (8 bytes). |
protected static int |
DES_EDE3_DEFAULT_LENGTH Default key length for DES_EDE3 (24 bytes). |
protected static int |
RC2_DEFAULT_LENGTH Default key length for RC2 (16 bytes). |
Constructor Summary | |
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SymmetricKeyGenerator() Empty constructor. |
Method Summary | |
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SymmetricKey |
generateKey() Generate a new random symmetric key using the default RandomBitsSource and the length set by the algorithm identifier parameters or the default for the algorithm. |
SymmetricKey |
generateKey(int length) Generate a new random symmetric key using the default RandomBitsSource and the given length. |
SymmetricKey |
generateKey(RandomBitsSource rbs) Generate a new random symmetric key of the length set by the algorithm identifier parameters, or the default for the algorithm. |
SymmetricKey |
generateKey(RandomBitsSource rbs, int length) Generate a new random symmetric key using the given RandomBitsSource and length. |
AlgorithmIdentifier |
getAlgID() Returns the AlgorithmIdentifier of this SymmetricKeyGenerator. |
static SymmetricKeyGenerator |
getInstance(AlgorithmIdentifier algID) Create a new SymmetricKeyGenerator for the given algorithm. |
void |
setAlgID(AlgorithmIdentifier algID) Set the algorithm identifier for the symmetric key algorithm. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected static final int AES128_DEFAULT_LENGTH
protected static final int AES192_DEFAULT_LENGTH
protected static final int AES256_DEFAULT_LENGTH
protected static final int BLOWFISH_DEFAULT_LENGTH
protected static final int DES_DEFAULT_LENGTH
protected static final int DES_EDE3_DEFAULT_LENGTH
protected static final int ARCFOUR_DEFAULT_LENGTH
protected static final int RC2_DEFAULT_LENGTH
protected AlgorithmIdentifier algID
Constructor Detail |
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public SymmetricKeyGenerator()
Method Detail |
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public static SymmetricKeyGenerator getInstance(AlgorithmIdentifier algID) throws java.lang.IllegalArgumentException
SymmetricKeyGenerator
for the given algorithm.java.lang.IllegalArgumentException
public void setAlgID(AlgorithmIdentifier algID) throws AlgorithmIdentifierException
AlgorithmIdentifierException
AlgorithmIdentifier
, CBCAlgorithmIdentifier
, RC2AlgorithmIdentifier
public AlgorithmIdentifier getAlgID()
public SymmetricKey generateKey(RandomBitsSource rbs, int length)
RandomBitsSource
and length.rbs
- The source of randomness used to generate the key material.length
- The length, in bytes, of the key to be generated.public SymmetricKey generateKey(RandomBitsSource rbs)
rbs
- The source of randomness used to generate the key material.public SymmetricKey generateKey(int length)
RandomBitsSource
and the given length.length
- The length, in bytes, of the key to be generated.public SymmetricKey generateKey()
RandomBitsSource
and the length set by the algorithm identifier parameters or the default for the algorithm.
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Oracle Fusion Middleware Crypto Java API Reference for Oracle Security Developer Tools 11g Release 1 (11.1.1) E10668-04 |
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