com.pega.pegarules.pub.crypto
Interface IPRCipher

public interface IPRCipher

Field Summary

static java.lang.String	COPYRIGHT
static java.lang.String	VERSION

Method Summary

byte[]	decrypt(byte[] aInput) Decrypts the supplied byte array using the cipher associated with this instance.
byte[]	encrypt(byte[] aInput) Encrypts the supplied byte array using the cipher associated with this instance.
byte[]	generateIV() Generates an initialization vector that may be used with this cipher.
byte[]	generateKey() Generates a key that may be used with this cipher.
javax.crypto.CipherInputStream	getInputStream(java.io.InputStream aInput) Supplies a CipherInputStream using the cipher associated with this instance.
javax.crypto.CipherOutputStream	getOutputStream(java.io.OutputStream aInput) Supplies a CipherOutputStream using the cipher associated with this instance.
boolean	needsIV() Set by constructor if the supplied parameters are insufficient in that an initialization vector is required.

Field Detail

COPYRIGHT

static final java.lang.String COPYRIGHT

See Also:

Constant Field Values

VERSION

static final java.lang.String VERSION

See Also:

Constant Field Values

Method Detail

encrypt

byte[] encrypt(byte[] aInput)

Encrypts the supplied byte array using the cipher associated with this instance.

Parameters:

aInput - byte array to be encrypted

Returns:

byte array resulting from encryption

decrypt

byte[] decrypt(byte[] aInput)

Decrypts the supplied byte array using the cipher associated with this instance.

Parameters:

aInput - byte array to be decrypted

Returns:

byte array resulting from decryption

getInputStream

javax.crypto.CipherInputStream getInputStream(java.io.InputStream aInput)

Supplies a CipherInputStream using the cipher associated with this instance.

Parameters:

aInput - InputStream to be wrapped with the cipher

Returns:

cipher stream

getOutputStream

javax.crypto.CipherOutputStream getOutputStream(java.io.OutputStream aInput)

Supplies a CipherOutputStream using the cipher associated with this instance.

Parameters:

aInput - OutputStream to be wrapped with the cipher

Returns:

cipher stream

needsIV

boolean needsIV()

Set by constructor if the supplied parameters are insufficient in that an initialization vector is required. In this case encryption can be performed, but the data cannot be decrypted because the randomly generated initialization vector cannot be retrieved.

If no initialization vector was provided in the constructor, check this value after obtaining a PRCipher instance. If true, call generateIV() and use that value into obtain a new PRCipher instance.

Returns:

true if an initialization vector is required by the algorithm and none was supplied to the constructor.

generateKey

byte[] generateKey()

Generates a key that may be used with this cipher.

Returns:

generated key

generateIV

byte[] generateIV()

Generates an initialization vector that may be used with this cipher.

Returns:

generated initialization vector