Class XMSSParameters

java.lang.Object

org.bouncycastle.pqc.crypto.xmss.XMSSParameters

public final class XMSSParameters
extends Object

XMSS Parameters.

Constructor Summary

Constructors

Constructor	Description
XMSSParameters(int height, ASN1ObjectIdentifier treeDigestOID)	XMSS Constructor...
XMSSParameters(int height, ASN1ObjectIdentifier treeDigestOID, int n)	XMSS Constructor with explicit security parameter n.
XMSSParameters(int height, Digest treeDigest)	XMSS Constructor...

Method Summary

Modifier and Type	Method	Description
int	getHeight()	Getter height.
int	getParameterSetOID()	Return the RFC 8391 / SP 800-208 parameter-set identifier for this parameter set (the 4-octet value carried at the start of an RFC 9802 encoded key), or 0 if these parameters do not correspond to a standard set (for example a non-standard tree height).
ASN1ObjectIdentifier	getTreeDigestOID()	Return the tree digest OID.
int	getTreeDigestSize()	Getter digest size.
static XMSSParameters	lookupByOID(int oid)

Methods inherited from class Object

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

Constructor Details

XMSSParameters

public XMSSParameters(int height,
 Digest treeDigest)

XMSS Constructor...

Parameters:

height - Height of tree.

treeDigest - Digest to use.

XMSSParameters

public XMSSParameters(int height,
 ASN1ObjectIdentifier treeDigestOID)

XMSS Constructor...

Parameters:

height - Height of tree.

treeDigestOID - OID of digest to use.

XMSSParameters

public XMSSParameters(int height,
 ASN1ObjectIdentifier treeDigestOID,
 int n)

XMSS Constructor with explicit security parameter n.

Parameters:

height - Height of tree.

treeDigestOID - OID of digest to use.

n - Security parameter (digest output size in bytes), or -1 to derive from digest.

Method Details

getTreeDigestSize

public int getTreeDigestSize()

Getter digest size.

Returns:

Digest size.

getTreeDigestOID

public ASN1ObjectIdentifier getTreeDigestOID()

Return the tree digest OID.

Returns:

OID for digest used to build the tree.

getParameterSetOID

public int getParameterSetOID()

Return the RFC 8391 / SP 800-208 parameter-set identifier for this parameter set (the 4-octet value carried at the start of an RFC 9802 encoded key), or 0 if these parameters do not correspond to a standard set (for example a non-standard tree height).

Returns:

the 4-octet parameter-set identifier, or 0 if none.

getHeight

public int getHeight()

Getter height.

Returns:

XMSS tree height.

lookupByOID

public static XMSSParameters lookupByOID(int oid)