org.eclipse.higgins.icard.provider.cardspace.common.utils
Class CardCryptography

java.lang.Object
  org.eclipse.higgins.icard.provider.cardspace.common.utils.CardCryptography

public class CardCryptography

extends Object

Constructor Summary

CardCryptography()

Method Summary

static byte[]	decodeBase64(String data) Decodes String to byte array using Base64
static Document	decrypt(InputStream is, String password) Performs decryption of CardSpace backup file (*.crds file format) and returns Document with RoamingStore root element
static byte[]	decryptPersonalCardField(byte[] encryptedData, EncryptedMasterKey key)
static String	encodeBase64(byte[] data, int wrappedStringlen) Encodes byte array to String using Base64
static void	encrypt(Document cardsStore, OutputStream os, String password) Performs encryption of CardSpace-interoperable ICards
static byte[]	encryptData(byte[] data, byte[] initVector, Key encryptionKey)
static byte[]	encryptPersonalCardField(byte[] data, byte[] salt, byte[] initVector, byte[] pinCode)
static String	getBase64Hash(int bytesCount)
static Element	getCardFromSignedEnvelop(Element sigElement)
static Element	getCardFromSignedEnvelop(InputStream signedCard)
static byte[]	getDerivedKey(byte[] password, byte[] salt)
static byte[]	getPinDigest(byte[] pinCode)
static byte[]	getRandomBytes(int bytesCount)
static byte[]	getSubArray(byte[] array, int offset, int len)
static boolean	isEncriptedStore(InputStream is) Checks whether data in the provided InputStream represents CardSpace backup format (*.crds file format)

Methods inherited from class java.lang.Object

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

Constructor Detail

CardCryptography

public CardCryptography()

Method Detail

getSubArray

public static byte[] getSubArray(byte[] array,
                                 int offset,
                                 int len)

Parameters:

array -

offset -

len -

Returns:

decrypt

public static Document decrypt(InputStream is,
                               String password)
                        throws Exception

Performs decryption of CardSpace backup file (*.crds file format) and returns Document with RoamingStore root element

Parameters:

is - InputStream of backup data

password - Password used to encrypt backup data

Returns:

Throws:

Exception

isEncriptedStore

public static boolean isEncriptedStore(InputStream is)

Checks whether data in the provided InputStream represents CardSpace backup format (*.crds file format)

Parameters:

is - InputStream to check

encryptData

public static byte[] encryptData(byte[] data,
                                 byte[] initVector,
                                 Key encryptionKey)
                          throws Exception

Parameters:

data -

initVector -

encryptionKey -

Returns:

Throws:

Exception

encrypt

public static void encrypt(Document cardsStore,
                           OutputStream os,
                           String password)
                    throws Exception

Performs encryption of CardSpace-interoperable ICards

Parameters:

cardsStore - Document with list of cards in RoamingStore format

os - OutputStream for data output

password - Password used to encrypt backup data

Throws:

Exception

getDerivedKey

public static byte[] getDerivedKey(byte[] password,
                                   byte[] salt)
                            throws NoSuchAlgorithmException

Parameters:

password -

salt -

Returns:

Throws:

NoSuchAlgorithmException

getCardFromSignedEnvelop

public static Element getCardFromSignedEnvelop(InputStream signedCard)
                                        throws Exception

Parameters:

signedCard -

Returns:

Throws:

Exception

getCardFromSignedEnvelop

public static Element getCardFromSignedEnvelop(Element sigElement)
                                        throws Exception

Returns:

Throws:

Exception

encodeBase64

public static String encodeBase64(byte[] data,
                                  int wrappedStringlen)

Encodes byte array to String using Base64

Parameters:

data -

wrappedStringlen - length of

Returns:

decodeBase64

public static byte[] decodeBase64(String data)
                           throws org.eclipse.higgins.icard.CardException

Decodes String to byte array using Base64

Parameters:

data -

Returns:

Throws:

org.eclipse.higgins.icard.CardException

getBase64Hash

public static String getBase64Hash(int bytesCount)

Parameters:

bytesCount -

Returns:

getRandomBytes

public static byte[] getRandomBytes(int bytesCount)

Parameters:

bytesCount -

Returns:

decryptPersonalCardField

public static byte[] decryptPersonalCardField(byte[] encryptedData,
                                              EncryptedMasterKey key)
                                       throws org.eclipse.higgins.icard.CardException

Parameters:

encryptedData -

key -

Returns:

Throws:

org.eclipse.higgins.icard.CardException

encryptPersonalCardField

public static byte[] encryptPersonalCardField(byte[] data,
                                              byte[] salt,
                                              byte[] initVector,
                                              byte[] pinCode)
                                       throws org.eclipse.higgins.icard.CardException

Parameters:

data -

pinCode -

Returns:

Throws:

org.eclipse.higgins.icard.CardException

getPinDigest

public static byte[] getPinDigest(byte[] pinCode)
                           throws org.eclipse.higgins.icard.CardException

Parameters:

pinCode -

Returns:

Throws:

org.eclipse.higgins.icard.CardException