org.cryptimeleon.craco.kem

Class UniqueByteKeyMaterial

java.lang.Object

org.cryptimeleon.craco.kem.UniqueByteKeyMaterial

All Implemented Interfaces:

KeyMaterial, org.cryptimeleon.math.hash.UniqueByteRepresentable

public class UniqueByteKeyMaterial
extends java.lang.Object
implements KeyMaterial

The most basic implementation of a KeyMaterial based on a UniqueByteRepresentable. It is extracted from a source of randomness with a well defined amount of min-entropy.

Constructor Summary

Constructors

Constructor and Description
UniqueByteKeyMaterial(org.cryptimeleon.math.hash.UniqueByteRepresentable e, int minEntropyOfSource)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
org.cryptimeleon.math.hash.UniqueByteRepresentable	getElement()
int	getMinEntropyInBit() Returns the min entropy, of the key material's source X, i.e.
int	hashCode()
org.cryptimeleon.math.hash.ByteAccumulator	updateAccumulator(org.cryptimeleon.math.hash.ByteAccumulator accumulator)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.cryptimeleon.math.hash.UniqueByteRepresentable

getUniqueByteRepresentation

Constructor Detail

UniqueByteKeyMaterial

public UniqueByteKeyMaterial(org.cryptimeleon.math.hash.UniqueByteRepresentable e,
                             int minEntropyOfSource)

Method Detail

getElement

public org.cryptimeleon.math.hash.UniqueByteRepresentable getElement()

getMinEntropyInBit

public int getMinEntropyInBit()

Description copied from interface: KeyMaterial

Returns the min entropy, of the key material's source X, i.e. \(-\log_2(\max\{Pr[X = x]\})\), where the maximum is over all possible x.

Specified by:

getMinEntropyInBit in interface KeyMaterial

updateAccumulator

public org.cryptimeleon.math.hash.ByteAccumulator updateAccumulator(org.cryptimeleon.math.hash.ByteAccumulator accumulator)

Specified by:

updateAccumulator in interface org.cryptimeleon.math.hash.UniqueByteRepresentable

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object