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
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) GroupElement[]
GroupElement. dblPrecmp
Precomputed table fordoubleScalarMultiplyVariableTime(GroupElement, byte[], byte[])
, filled if necessary.(package private) GroupElement[][]
GroupElement. precmp
Precomputed table forscalarMultiply(byte[])
, filled if necessary.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)
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.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.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.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
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 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)
No validation of any parameters other than a.EdDSAPrivateKeySpec(byte[] a, GroupElement A, EdDSAParameterSpec spec)
No validation of any parameters other than a.EdDSAPublicKeySpec(GroupElement A, EdDSAParameterSpec spec)
-