Uses of Class
net.i2p.crypto.eddsa.math.GroupElement

Packages that use GroupElement

Package	Description
net.i2p.crypto.eddsa	Java implementation of EdDSA, a digital signature scheme using a variant of elliptic curve cryptography based on Twisted Edwards curves.
net.i2p.crypto.eddsa.math	Data structures that definie curves and fields, and the mathematical operaions on them.
net.i2p.crypto.eddsa.spec	Specifications for curves and keys, and a table for named curves.

Uses of GroupElement in net.i2p.crypto.eddsa

Fields in net.i2p.crypto.eddsa declared as GroupElement

Modifier and Type	Field	Description
private final GroupElement	EdDSAPrivateKey.A
private final GroupElement	EdDSAPublicKey.A
private GroupElement	EdDSAPublicKey.Aneg

Methods in net.i2p.crypto.eddsa that return GroupElement

Modifier and Type	Method	Description
GroupElement	EdDSAPrivateKey.getA()
GroupElement	EdDSAPublicKey.getA()
GroupElement	EdDSAPublicKey.getNegativeA()

Uses of GroupElement in net.i2p.crypto.eddsa.math

Fields in net.i2p.crypto.eddsa.math declared as GroupElement

Modifier and Type	Field	Description
(package private) final GroupElement[]	GroupElement.dblPrecmp	Precomputed table for doubleScalarMultiplyVariableTime(GroupElement, byte[], byte[]), filled if necessary.
(package private) final GroupElement[][]	GroupElement.precmp	Precomputed table for scalarMultiply(byte[]), filled if necessary.
private final GroupElement	Curve.zeroP2
private final GroupElement	Curve.zeroP3
private final GroupElement	Curve.zeroP3PrecomputedDouble
private final GroupElement	Curve.zeroPrecomp

Methods in net.i2p.crypto.eddsa.math that return GroupElement

Modifier and Type	Method	Description
GroupElement	GroupElement.add(GroupElement q)	GroupElement addition using the twisted Edwards addition law with extended coordinates (Hisil2008).
static GroupElement	GroupElement.cached(Curve curve, FieldElement YpX, FieldElement YmX, FieldElement Z, FieldElement T2d)	Creates a new group element in CACHED representation.
(package private) GroupElement	GroupElement.cmov(GroupElement u, int b)	Constant-time conditional move.
GroupElement	Curve.createPoint(byte[] P, boolean precompute)
GroupElement	GroupElement.dbl()	Doubles a given group element $p$ in $P^2$ or $P^3$ representation and returns the result in $P \times P$ representation.
GroupElement	GroupElement.doubleScalarMultiplyVariableTime(GroupElement A, byte[] a, byte[] b)	$r = a * A + b * B$ where $a = a[0]+256*a[1]+\dots+256^{31} a[31]$, $b = b[0]+256*b[1]+\dots+256^{31} b[31]$ and $B$ is this point.
GroupElement	Curve.getZero(GroupElement.Representation repr)
private GroupElement	GroupElement.madd(GroupElement q)	GroupElement addition using the twisted Edwards addition law with extended coordinates (Hisil2008).
private GroupElement	GroupElement.msub(GroupElement q)	GroupElement subtraction using the twisted Edwards addition law with extended coordinates (Hisil2008).
GroupElement	GroupElement.negate()	Negates this group element by subtracting it from the neutral group element.
static GroupElement	GroupElement.p1p1(Curve curve, FieldElement X, FieldElement Y, FieldElement Z, FieldElement T)	Creates a new group element in P1P1 representation.
static GroupElement	GroupElement.p2(Curve curve, FieldElement X, FieldElement Y, FieldElement Z)	Creates a new group element in P2 representation.
static GroupElement	GroupElement.p3(Curve curve, FieldElement X, FieldElement Y, FieldElement Z, FieldElement T)	Creates a new group element in P3 representation, without pre-computation.
static GroupElement	GroupElement.p3(Curve curve, FieldElement X, FieldElement Y, FieldElement Z, FieldElement T, boolean precomputeDoubleOnly)	Creates a new group element in P3 representation, potentially with pre-computation.
static GroupElement	GroupElement.precomp(Curve curve, FieldElement ypx, FieldElement ymx, FieldElement xy2d)	Creates a new group element in PRECOMP representation.
private GroupElement[]	GroupElement.precomputeDouble()	Precomputes table for doubleScalarMultiplyVariableTime(GroupElement, byte[], byte[]).
private GroupElement[][]	GroupElement.precomputeSingle()	Precomputes table for scalarMultiply(byte[]).
GroupElement	GroupElement.scalarMultiply(byte[] a)	$h = a * B$ where $a = a[0]+256*a[1]+\dots+256^{31} a[31]$ and $B$ is this point.
(package private) GroupElement	GroupElement.select(int pos, int b)	Look up $16^i r_i B$ in the precomputed table.
GroupElement	GroupElement.sub(GroupElement q)	GroupElement subtraction using the twisted Edwards addition law with extended coordinates (Hisil2008).
GroupElement	GroupElement.toCached()	Converts the group element to the CACHED representation.
GroupElement	GroupElement.toP2()	Converts the group element to the P2 representation.
GroupElement	GroupElement.toP3()	Converts the group element to the P3 representation.
GroupElement	GroupElement.toP3PrecomputeDouble()	Converts the group element to the P3 representation, with dblPrecmp populated.
private GroupElement	GroupElement.toRep(GroupElement.Representation repr)	Convert a GroupElement from one Representation to another.

Methods in net.i2p.crypto.eddsa.math with parameters of type GroupElement

Modifier and Type	Method	Description
GroupElement	GroupElement.add(GroupElement q)	GroupElement addition using the twisted Edwards addition law with extended coordinates (Hisil2008).
(package private) GroupElement	GroupElement.cmov(GroupElement u, int b)	Constant-time conditional move.
GroupElement	GroupElement.doubleScalarMultiplyVariableTime(GroupElement A, byte[] a, byte[] b)	$r = a * A + b * B$ where $a = a[0]+256*a[1]+\dots+256^{31} a[31]$, $b = b[0]+256*b[1]+\dots+256^{31} b[31]$ and $B$ is this point.
private GroupElement	GroupElement.madd(GroupElement q)	GroupElement addition using the twisted Edwards addition law with extended coordinates (Hisil2008).
private GroupElement	GroupElement.msub(GroupElement q)	GroupElement subtraction using the twisted Edwards addition law with extended coordinates (Hisil2008).
GroupElement	GroupElement.sub(GroupElement q)	GroupElement subtraction using the twisted Edwards addition law with extended coordinates (Hisil2008).

Uses of GroupElement in net.i2p.crypto.eddsa.spec

Fields in net.i2p.crypto.eddsa.spec declared as GroupElement

Modifier and Type	Field	Description
private final GroupElement	EdDSAPrivateKeySpec.A
private final GroupElement	EdDSAPublicKeySpec.A
private GroupElement	EdDSAPublicKeySpec.Aneg
private final GroupElement	EdDSAParameterSpec.B

Methods in net.i2p.crypto.eddsa.spec that return GroupElement

Modifier and Type	Method	Description
GroupElement	EdDSAPrivateKeySpec.getA()
GroupElement	EdDSAPublicKeySpec.getA()
GroupElement	EdDSAParameterSpec.getB()
GroupElement	EdDSAPublicKeySpec.getNegativeA()

Constructors in net.i2p.crypto.eddsa.spec with parameters of type GroupElement

Modifier	Constructor	Description
	EdDSANamedCurveSpec(String name, Curve curve, String hashAlgo, ScalarOps sc, GroupElement B)
	EdDSAParameterSpec(Curve curve, String hashAlgo, ScalarOps sc, GroupElement B)
	EdDSAPrivateKeySpec(byte[] seed, byte[] h, byte[] a, GroupElement A, EdDSAParameterSpec spec)
	EdDSAPublicKeySpec(GroupElement A, EdDSAParameterSpec spec)