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Class au.net.aba.crypto.provider.RSAKeyFactory
java.lang.Object
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+----au.net.aba.security.KeyFactorySpi
|
+----au.net.aba.crypto.provider.RSAKeyFactory
- public class RSAKeyFactory
- extends KeyFactorySpi
This class is used to convert RSA keys into a format usable by the
ABA provider. Currently this class can convert from a KeySpec
into a Key, or from one of the standard RSA Key interfaces into
an ABA key.
The supported KeySpec classes are AsciiEncodedKeySpec,
RSAPrivateCrtKeySpec, RSAPublicKeySpec, X509EncodedKeySpec and
PKCS8EncodedKeySpec.
The supported RSA Key interfaces are RSAPublicKey, RSAPrivateKey
and RSAPrivateCrtKey.
This class should not be instantiated directly, instead use the
java.security.KeyFactory interface.
- See Also:
- KeyFactory, RSAPublicKey;, RSAPrivateKey;, RSAPrivateKeySpec;, RSAPublicKeySpec;, X509EncodedKeySpec;, PKCS8EncodedKeySpec;, AsciiEncodedKeySpec;
-
ident
-
-
RSAKeyFactory()
-
-
engineGeneratePrivate(KeySpec)
- Generates a private key object from the provided key specification
(key material).
-
engineGeneratePublic(KeySpec)
- Generates a public key object from the provided key specification
(key material).
-
engineGetKeySpec(Key, Class)
- Returns a specification (key material) of the given key object.
-
engineTranslateKey(Key)
- Translates a key object, whose provider may be unknown or
potentially untrusted, into a corresponding key object of this key
factory.
-
parseKey(byte[])
- Parse a key from the ABA/PGP format into an array of
BigIntegers.
ident
public static final String ident
RSAKeyFactory
public RSAKeyFactory()
engineGeneratePrivate
protected PrivateKey engineGeneratePrivate(KeySpec keySpec) throws InvalidKeySpecException
- Generates a private key object from the provided key specification
(key material). This class supports the AsciiEncodedKeySpec,
RSAPrivateKeySpec, RSAPrivateCrtKeySpec and PKCS8Encoded KeySpec
classes.
- Returns:
- s The private key.
- Throws: InvalidKeySpecException
- The provided KeySpec was not
an AsciiEncodedKeySpec, RSAPrivateKeySpec, RSAPrivateCrtKeySpec
or PKCS8EncodedKeySpec KeySpec instance.
- Overrides:
- engineGeneratePrivate in class KeyFactorySpi
engineGeneratePublic
protected PublicKey engineGeneratePublic(KeySpec keySpec) throws InvalidKeySpecException
- Generates a public key object from the provided key specification
(key material). This class supports the AsciiEncodedKeySpec,
RSAPublicKeySpec and X509EncodedKeySpec KeySpec classes.
- Returns:
- s The public key.
- Throws: InvalidKeySpecException
- The provided KeySpec was not
an AsciiEncodedKeySpec, RSAPublicKeySpec or X509EncodedKeySpec
KeySpec.
- Overrides:
- engineGeneratePublic in class KeyFactorySpi
engineGetKeySpec
protected KeySpec engineGetKeySpec(Key key,
Class spec) throws InvalidKeySpecException
- Returns a specification (key material) of the given key object.
keySpec identifies the specification class in which the key material
should be returned. It could, for example, be RSAPublicKeySpec.class,
to indicate that the key material should be returned in an instance
of the RSAPublicKeySpec class.
Currently supports standard RSA keys and RSAPublicKeySpec,
RSAPrivateKeySpec, RSAPrivateCrtKeySpec, X509EncodedKeySpec
and PKCS8EncodedKeySpec KeySpec classes.
- Parameters:
- key - the key the key material is to be recovered from.
- spec - the class the new key spec object is meant to be from.
- Returns:
- the new key spec object representing the key material in key.
- Overrides:
- engineGetKeySpec in class KeyFactorySpi
engineTranslateKey
protected Key engineTranslateKey(Key key) throws InvalidKeyException
- Translates a key object, whose provider may be unknown or
potentially untrusted, into a corresponding key object of this key
factory.
This KeyFactory will convert any key that implements either
RSAPrivateCrtKey, RSAPrivateKey, or the RSAPublicKey interface.
- Parameters:
- key - the key to be translated.
- Returns:
- the same key, only for this provider.
- Overrides:
- engineTranslateKey in class KeyFactorySpi
parseKey
protected static BigInteger[] parseKey(byte keyBytes[])
- Parse a key from the ABA/PGP format into an array of
BigIntegers. The format is:
modulus.publicExp.privateExp.p.q
- Parameters:
- keyBytes - an ASCII string describing the key.
- Returns:
- an array of BigIntegers that make up the key.
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