net.handle.security.provider
Class GenericProvider
java.lang.Object
net.handle.security.HdlSecurityProvider
net.handle.security.provider.GenericProvider
public final class GenericProvider
- extends HdlSecurityProvider
An implementation of the net.handle.HDLSecurityProvider interface
that accesses the generic java security/crypto interfaces.
Method Summary |
java.security.KeyPair |
generateDHKeyPair(java.math.BigInteger p,
java.math.BigInteger g)
|
java.security.KeyPair |
generateDHKeyPair(int keySize)
|
byte[] |
generateSecretKey(int keyAlg)
Generate and encode a secret key for use with the given algorithm |
javax.crypto.Cipher |
getCipher(int algorithm,
byte[] secretKey,
int direction,
byte[] iv,
int majorProtocolVersion,
int minorProtocolVersion)
Construct and return a Cipher object, initialized to either decrypt or
encrypt using the given algorithm and secret key. |
byte[] |
getDESKeyFromDH(javax.crypto.interfaces.DHPublicKey pub,
javax.crypto.interfaces.DHPrivateKey priv)
|
int |
getIvSize(int algorithm,
int majorProtocolVersion,
int minorProtocolVersion)
Returns the length in bytes of the initialization vector used by the cipher generated by getCipher(). |
byte[] |
getKeyFromDH(javax.crypto.interfaces.DHPublicKey pub,
javax.crypto.interfaces.DHPrivateKey priv,
int algorithm)
Using the given diffie-hellman key pair, generate the secret key with the
algorithm ID (ENCRYPT_ALG_DES, ENCRYPT_ALG_AES or ENCRYPT_ALG_DESEDE) in the
first four bytes of the array |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
GenericProvider
public GenericProvider()
getCipher
public javax.crypto.Cipher getCipher(int algorithm,
byte[] secretKey,
int direction,
byte[] iv,
int majorProtocolVersion,
int minorProtocolVersion)
throws java.lang.Exception
- Construct and return a Cipher object, initialized to either decrypt or
encrypt using the given algorithm and secret key. The direction parameter
must be either Cipher.ENCRYPT_MODE or Cipher.DECRYPT_MODE. The algorithm
parameter should be one of the HdlSecurityProvider.ENCRYPT_ALG_* constants.
- Specified by:
getCipher
in class HdlSecurityProvider
- Throws:
java.lang.Exception
getIvSize
public int getIvSize(int algorithm,
int majorProtocolVersion,
int minorProtocolVersion)
- Description copied from class:
HdlSecurityProvider
- Returns the length in bytes of the initialization vector used by the cipher generated by getCipher(). Returns 0 if no initialization vector.
- Specified by:
getIvSize
in class HdlSecurityProvider
generateSecretKey
public byte[] generateSecretKey(int keyAlg)
throws java.lang.Exception
- Generate and encode a secret key for use with the given algorithm
- Specified by:
generateSecretKey
in class HdlSecurityProvider
- Throws:
java.lang.Exception
getDESKeyFromDH
public byte[] getDESKeyFromDH(javax.crypto.interfaces.DHPublicKey pub,
javax.crypto.interfaces.DHPrivateKey priv)
throws java.lang.Exception
- Overrides:
getDESKeyFromDH
in class HdlSecurityProvider
- Throws:
java.lang.Exception
getKeyFromDH
public byte[] getKeyFromDH(javax.crypto.interfaces.DHPublicKey pub,
javax.crypto.interfaces.DHPrivateKey priv,
int algorithm)
throws java.lang.Exception
- Using the given diffie-hellman key pair, generate the secret key with the
algorithm ID (ENCRYPT_ALG_DES, ENCRYPT_ALG_AES or ENCRYPT_ALG_DESEDE) in the
first four bytes of the array
- Overrides:
getKeyFromDH
in class HdlSecurityProvider
- Throws:
java.lang.Exception
generateDHKeyPair
public java.security.KeyPair generateDHKeyPair(int keySize)
throws java.lang.Exception
- Overrides:
generateDHKeyPair
in class HdlSecurityProvider
- Throws:
java.lang.Exception
generateDHKeyPair
public java.security.KeyPair generateDHKeyPair(java.math.BigInteger p,
java.math.BigInteger g)
throws java.lang.Exception
- Overrides:
generateDHKeyPair
in class HdlSecurityProvider
- Throws:
java.lang.Exception