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.

Field Summary

Fields inherited from class net.handle.security.HdlSecurityProvider

ENCRYPT_ALG_AES, ENCRYPT_ALG_DES, ENCRYPT_ALG_DESEDE

Constructor Summary

Constructors

Constructor and Description
GenericProvider()

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	decrypt_DES_ECB_PKCS5(byte[] ciphertext, int offset, int len, byte[] secretKey) Deprecated. use the getEncryptCipher and getDecryptCipher methods now that the java crypto API, and therefore the Cipher class, is standard and included in java 1.4 and higher. Using a returned Cipher object will be vastly more efficient than calling this method, which constructs a new Cipher every time.
byte[]	encrypt_DES_ECB_PKCS5(byte[] cleartext, int offset, int len, byte[] secretKey) Deprecated. use the getEncryptCipher and getDecryptCipher methods now that the java crypto API, and therefore the Cipher class, is standard and included in java 1.4 and higher. Using a returned Cipher object will be vastly more efficient than calling this method, which constructs a new Cipher every time.
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
static void	main(java.lang.String[] argv)

Methods inherited from class net.handle.security.HdlSecurityProvider

decrypt_RSA_CBC_PKCS1, decrypt_RSA_ECB_PKCS1, encrypt_RSA_CBC_PKCS1, encrypt_RSA_ECB_PKCS1, generateRSAKeyPair, getCipher, getInstance, sign_RSA_MD5_PKCS1, sign_RSA_SHA1_PKCS1, verify_RSA_MD5_PKCS1, verify_RSA_SHA1_PKCS1

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GenericProvider

public GenericProvider()

Method Detail

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

encrypt_DES_ECB_PKCS5

@Deprecated
public byte[] encrypt_DES_ECB_PKCS5(byte[] cleartext,
                                      int offset,
                                      int len,
                                      byte[] secretKey)
                             throws java.lang.Exception

Deprecated. use the getEncryptCipher and getDecryptCipher methods now that the java crypto API, and therefore the Cipher class, is standard and included in java 1.4 and higher. Using a returned Cipher object will be vastly more efficient than calling this method, which constructs a new Cipher every time.

Description copied from class: HdlSecurityProvider

encrypt a chunk of data using the DES/ECB/PKCS5 algorith/padding/encoding

Specified by:

encrypt_DES_ECB_PKCS5 in class HdlSecurityProvider

Throws:

java.lang.Exception

decrypt_DES_ECB_PKCS5

@Deprecated
public byte[] decrypt_DES_ECB_PKCS5(byte[] ciphertext,
                                      int offset,
                                      int len,
                                      byte[] secretKey)
                             throws java.lang.Exception

Deprecated. use the getEncryptCipher and getDecryptCipher methods now that the java crypto API, and therefore the Cipher class, is standard and included in java 1.4 and higher. Using a returned Cipher object will be vastly more efficient than calling this method, which constructs a new Cipher every time.

Description copied from class: HdlSecurityProvider

decrypt a chunk of data using the DES/ECB/PKCS5 algorith/padding/encoding

Specified by:

decrypt_DES_ECB_PKCS5 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

main

public static void main(java.lang.String[] argv)
                 throws java.lang.Exception

Throws:

java.lang.Exception