br.ufsc.das.confidentiality
Class ConfidentialityScheme

java.lang.Object
  br.ufsc.das.confidentiality.ConfidentialityScheme

public class ConfidentialityScheme
extends java.lang.Object

Field Summary

static java.lang.String	PRIVATE
static java.lang.String	WILDCARD

Constructor Summary

ConfidentialityScheme(PublicInfo publicInfo, java.math.BigInteger[] publicKeys)
Creates a new instance of the Confidentiality Scheme.

ConfidentialityScheme(PublicInfo publicInfo, java.math.BigInteger[] publicKeys, int id, java.math.BigInteger secretKey)
Creates a new instance of the Confidentiality Scheme.

Method Summary

java.lang.Object[]	extractTuple(Share[] shares)
java.lang.Object[]	fingerprint(ProtectionVector protectionVector, java.lang.Object[] fields)
PublicInfo	getPublicInfo()
java.math.BigInteger	getPublicKey(int index)
java.math.BigInteger[]	getPublicKeys()
DepTuple	mask(ProtectionVector protectionVector, DepTuple tuple)
DepTuple	unmask(DepTuple tuple)
boolean	verifyTuple(ProtectionVector protectionVector, java.lang.Object[] fingerprint, java.lang.Object[] fields)

Methods inherited from class java.lang.Object

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

Field Detail

WILDCARD

public static final java.lang.String WILDCARD

See Also:

Constant Field Values

PRIVATE

public static final java.lang.String PRIVATE

See Also:

Constant Field Values

Constructor Detail

ConfidentialityScheme

public ConfidentialityScheme(PublicInfo publicInfo,
                             java.math.BigInteger[] publicKeys)
                      throws InvalidVSSScheme

Creates a new instance of the Confidentiality Scheme. This constructor must be called at client side.

Throws:

InvalidVSSScheme

ConfidentialityScheme

public ConfidentialityScheme(PublicInfo publicInfo,
                             java.math.BigInteger[] publicKeys,
                             int id,
                             java.math.BigInteger secretKey)
                      throws InvalidVSSScheme

Creates a new instance of the Confidentiality Scheme. This constructor must be called at server side.

Throws:

InvalidVSSScheme

Method Detail

getPublicInfo

public PublicInfo getPublicInfo()

getPublicKeys

public java.math.BigInteger[] getPublicKeys()

getPublicKey

public java.math.BigInteger getPublicKey(int index)

mask

public DepTuple mask(ProtectionVector protectionVector,
                     DepTuple tuple)
              throws InvalidVSSScheme

Throws:

InvalidVSSScheme

unmask

public DepTuple unmask(DepTuple tuple)
                throws InvalidVSSScheme

Throws:

InvalidVSSScheme

verifyTuple

public boolean verifyTuple(ProtectionVector protectionVector,
                           java.lang.Object[] fingerprint,
                           java.lang.Object[] fields)
                    throws InvalidVSSScheme

Throws:

InvalidVSSScheme

extractTuple

public java.lang.Object[] extractTuple(Share[] shares)
                                throws InvalidVSSScheme

Throws:

InvalidVSSScheme

fingerprint

public java.lang.Object[] fingerprint(ProtectionVector protectionVector,
                                      java.lang.Object[] fields)
                               throws InvalidVSSScheme

Throws:

InvalidVSSScheme