org.bouncycastle.crypto.params

Class LMOtsParameters

java.lang.Object

org.bouncycastle.crypto.params.LMOtsParameters

All Implemented Interfaces:

PQCParameters

public class LMOtsParameters
extends java.lang.Object
implements PQCParameters

Field Summary

Fields

Modifier and Type	Field and Description
static int	reserved
static LMOtsParameters	sha256_n24_w1
static LMOtsParameters	sha256_n24_w2
static LMOtsParameters	sha256_n24_w4
static LMOtsParameters	sha256_n24_w8
static LMOtsParameters	sha256_n32_w1
static LMOtsParameters	sha256_n32_w2
static LMOtsParameters	sha256_n32_w4
static LMOtsParameters	sha256_n32_w8
static LMOtsParameters	shake256_n24_w1
static LMOtsParameters	shake256_n24_w2
static LMOtsParameters	shake256_n24_w4
static LMOtsParameters	shake256_n24_w8
static LMOtsParameters	shake256_n32_w1
static LMOtsParameters	shake256_n32_w2
static LMOtsParameters	shake256_n32_w4
static LMOtsParameters	shake256_n32_w8

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LMOtsParameters(int type, int n, int w, int p, int ls, int sigLen, ASN1ObjectIdentifier digestOID) Deprecated. The parameter sets are the static fields of this class, looked up by getParametersForType(int); this class is not intended to be subclassed and this constructor will be made private.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj) The typecode identifies the parameter set: the rest of the values are derived from it.
int	getClassicalSecurityStrength() Return the classical security strength of this parameter set: 8 times the hash output length n, so 192 or 256 bits (NIST IR 8547, Table 3).
ASN1ObjectIdentifier	getDigestOID()
int	getLs()
int	getN()
int	getP()
static LMOtsParameters	getParametersForType(int type)
int	getSecurityCategory() Return the NIST security category of this parameter set: 3 for the SHA-256/192 and SHAKE256/192 sets (n = 24) and 5 for the SHA-256 and SHAKE256/256 sets (n = 32) (NIST IR 8547, Table 3).
int	getSigLen()
int	getType()
int	getW()
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Detail

reserved

public static final int reserved

See Also:

Constant Field Values

sha256_n32_w1

public static final LMOtsParameters sha256_n32_w1

sha256_n32_w2

public static final LMOtsParameters sha256_n32_w2

sha256_n32_w4

public static final LMOtsParameters sha256_n32_w4

sha256_n32_w8

public static final LMOtsParameters sha256_n32_w8

sha256_n24_w1

public static final LMOtsParameters sha256_n24_w1

sha256_n24_w2

public static final LMOtsParameters sha256_n24_w2

sha256_n24_w4

public static final LMOtsParameters sha256_n24_w4

sha256_n24_w8

public static final LMOtsParameters sha256_n24_w8

shake256_n32_w1

public static final LMOtsParameters shake256_n32_w1

shake256_n32_w2

public static final LMOtsParameters shake256_n32_w2

shake256_n32_w4

public static final LMOtsParameters shake256_n32_w4

shake256_n32_w8

public static final LMOtsParameters shake256_n32_w8

shake256_n24_w1

public static final LMOtsParameters shake256_n24_w1

shake256_n24_w2

public static final LMOtsParameters shake256_n24_w2

shake256_n24_w4

public static final LMOtsParameters shake256_n24_w4

shake256_n24_w8

public static final LMOtsParameters shake256_n24_w8

Constructor Detail

LMOtsParameters

@Deprecated
protected LMOtsParameters(int type,
                                      int n,
                                      int w,
                                      int p,
                                      int ls,
                                      int sigLen,
                                      ASN1ObjectIdentifier digestOID)

Deprecated. The parameter sets are the static fields of this class, looked up by getParametersForType(int); this class is not intended to be subclassed and this constructor will be made private.

Method Detail

equals

public boolean equals(java.lang.Object obj)

The typecode identifies the parameter set: the rest of the values are derived from it.

The instances are interned - every lookup hands back one of the static fields - so this agrees with the reference equality it replaces. It states the intent instead of leaving callers to rely on the interning.

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

getType

public int getType()

getN

public int getN()

getW

public int getW()

getP

public int getP()

getLs

public int getLs()

getSigLen

public int getSigLen()

getSecurityCategory

public int getSecurityCategory()

Return the NIST security category of this parameter set: 3 for the SHA-256/192 and SHAKE256/192 sets (n = 24) and 5 for the SHA-256 and SHAKE256/256 sets (n = 32) (NIST IR 8547, Table 3).

Specified by:

getSecurityCategory in interface PQCParameters

Returns:

the security category, as given in NIST IR 8547 Tables 3 and 5.

getClassicalSecurityStrength

public int getClassicalSecurityStrength()

Return the classical security strength of this parameter set: 8 times the hash output length n, so 192 or 256 bits (NIST IR 8547, Table 3).

Specified by:

getClassicalSecurityStrength in interface PQCParameters

Returns:

the classical security strength in bits.

getDigestOID

public ASN1ObjectIdentifier getDigestOID()

getParametersForType

public static LMOtsParameters getParametersForType(int type)