Package io.heraldprox.herald.sensor.payload.simple

Class K

java.lang.Object

io.heraldprox.herald.sensor.payload.simple.K

public class K
extends java.lang.Object

Key generation functions for the Simple Payload.

Constructor Summary

Constructors

Constructor	Description
K()

Method Summary

Modifier and Type	Method	Description
protected static ContactIdentifier	contactIdentifier(ContactKey contactKey)	Generate contact identifer I_{c}
protected static ContactKey[]	contactKeys(MatchingKey matchingKey)	Generate contact keys K_{c}^{0...periods}
protected static java.util.Date	date(java.lang.String fromString)	Date from string date "yyyy-MM-dd'T'HH:mm:ssXXXX" in UTC
protected static int	day(java.util.Date onDate)
protected static TimeInterval	getEpoch()
static java.security.SecureRandom	getSecureRandom()
protected static MatchingKey[]	matchingKeys(SecretKey secretKey)	Generate matching keys K_{m}^{0...days}
protected static int	period(java.util.Date atTime)
protected static SecretKey	secretKey()

Methods inherited from class java.lang.Object

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

Constructor Detail

K

public K()

Method Detail

date

@Nullable
protected static java.util.Date date(@NonNull
                                     java.lang.String fromString)

Date from string date "yyyy-MM-dd'T'HH:mm:ssXXXX" in UTC

Parameters:

fromString - Time string in UTC timezone

Returns:

Herald Date instance

getEpoch

@NonNull
protected static TimeInterval getEpoch()

day

protected static int day(@NonNull
                         java.util.Date onDate)

period

protected static int period(@NonNull
                            java.util.Date atTime)

secretKey

@NonNull
protected static SecretKey secretKey()

getSecureRandom

@NonNull
public static java.security.SecureRandom getSecureRandom()

matchingKeys

@NonNull
protected static MatchingKey[] matchingKeys(@NonNull
                                            SecretKey secretKey)

Generate matching keys K_{m}^{0...days}

Parameters:

secretKey - The SecretKey to use to generate the sequence of daily MatchingKeys

Returns:

contactKeys

@NonNull
protected static ContactKey[] contactKeys(@NonNull
                                          MatchingKey matchingKey)

Generate contact keys K_{c}^{0...periods}

Parameters:

matchingKey - The daily MatchingKey to use to generate a set of period ContactKeys

Returns:

The ContactKey set generated from the MatchingKey

contactIdentifier

@NonNull
protected static ContactIdentifier contactIdentifier(@NonNull
                                                     ContactKey contactKey)

Generate contact identifer I_{c}

Parameters:

contactKey - The ContactKey used to generate this period's ContactIdentifier