Class SntruPrimeKeyGenSpec

java.lang.Object

zeroecho.core.alg.ntruprime.SntruPrimeKeyGenSpec

All Implemented Interfaces:

Describable, AlgorithmKeySpec

public final class SntruPrimeKeyGenSpec
extends Object
implements AlgorithmKeySpec, Describable

Algorithm-specific key generation parameters for SNTRU Prime.

SntruPrimeKeyGenSpec selects one of the standardized parameter variants of the SNTRU Prime key encapsulation mechanism. Each variant determines the security level, key sizes, and performance characteristics of the generated key pair.

Variants

• SntruPrimeKeyGenSpec.Variant.SNTRUP653: ~128-bit classical security.
• SntruPrimeKeyGenSpec.Variant.SNTRUP761: ~192-bit security.
• SntruPrimeKeyGenSpec.Variant.SNTRUP857: ~256-bit security.
• SntruPrimeKeyGenSpec.Variant.SNTRUP953, SntruPrimeKeyGenSpec.Variant.SNTRUP1013, SntruPrimeKeyGenSpec.Variant.SNTRUP1277: larger sets providing higher security margins with larger keys and ciphertexts.

Instances are immutable and passed to KeyBuilders.Asymmetric.generateKeyPair(String, AlgorithmKeySpec). Static factory methods are provided for each variant.

Example

KeyPair kp = session.keyBuilders().asymmetric()
        .generateKeyPair("SNTRUPrime", SntruPrimeKeyGenSpec.sntrup761());

Since:

1.0

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	SntruPrimeKeyGenSpec.Variant	Enumeration of supported SNTRU Prime parameter sets.

Method Summary

Modifier and Type	Method	Description
String	description()	Returns a textual description of this specification.
static SntruPrimeKeyGenSpec	of(SntruPrimeKeyGenSpec.Variant v)	Creates a specification from the given variant.
static SntruPrimeKeyGenSpec	sntrup1013()	Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP1013 parameter set.
static SntruPrimeKeyGenSpec	sntrup1277()	Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP1277 parameter set.
static SntruPrimeKeyGenSpec	sntrup653()	Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP653 parameter set.
static SntruPrimeKeyGenSpec	sntrup761()	Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP761 parameter set.
static SntruPrimeKeyGenSpec	sntrup857()	Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP857 parameter set.
static SntruPrimeKeyGenSpec	sntrup953()	Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP953 parameter set.
SntruPrimeKeyGenSpec.Variant	variant()	Returns the selected variant for this specification.

Methods inherited from class Object

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

Method Details

of

public static SntruPrimeKeyGenSpec of(SntruPrimeKeyGenSpec.Variant v)

Creates a specification from the given variant.

Parameters:

v - selected SNTRU Prime parameter set

Returns:

new specification bound to v

Throws:

NullPointerException - if v is null

sntrup653

public static SntruPrimeKeyGenSpec sntrup653()

Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP653 parameter set.

Returns:

a new specification targeting SNTRUP653

sntrup761

public static SntruPrimeKeyGenSpec sntrup761()

Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP761 parameter set.

Returns:

a new specification targeting SNTRUP761

sntrup857

public static SntruPrimeKeyGenSpec sntrup857()

Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP857 parameter set.

Returns:

a new specification targeting SNTRUP857

sntrup953

public static SntruPrimeKeyGenSpec sntrup953()

Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP953 parameter set.

Returns:

a new specification targeting SNTRUP953

sntrup1013

public static SntruPrimeKeyGenSpec sntrup1013()

Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP1013 parameter set.

Returns:

a new specification targeting SNTRUP1013

sntrup1277

public static SntruPrimeKeyGenSpec sntrup1277()

Creates a key generation specification for the SntruPrimeKeyGenSpec.Variant.SNTRUP1277 parameter set.

Returns:

a new specification targeting SNTRUP1277

variant

public SntruPrimeKeyGenSpec.Variant variant()

Returns the selected variant for this specification.

Returns:

variant of SNTRU Prime key parameters

description

public String description()

Returns a textual description of this specification.

The description is the variant name (e.g., "SNTRUP761").

Specified by:

description in interface Describable

Returns:

variant name string