Ed25519Utils class

Utility class for Ed25519-specific operations.

Constructors

Ed25519Utils.new()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

add(List<int> scalar1, List<int> scalar2) → List<int>

add two scalar r = a+b

asPoint(List<int> point) → EDPoint

convert valid ed25519 to EDPoint.

asScalarInt(List<int> scalar) → BigInt

check and convert scalar bytes to BigInteger

isValidPoint(List<int> bytes) → bool

check bytes is valid ed25519 point.

mul(List<int> scalar1, List<int> scalar2) → List<int>

mul two scalar r = a*b

mulAdd(List<int> scalar1, List<int> scalar2, List<int> scalar3) → List<int>

mul and then add scalar r = a*b+c

mulSub(List<int> scalar1, List<int> scalar2, List<int> scalar3) → List<int>

mul and then sub scalar r = a*b-c

mybeAsPoint(List<int> point) → EDPoint?

neg(List<int> scalar) → List<int>

Negates a scalar.

pointAdd(List<int> point1, List<int> point2) → List<int>

add two point r = P+P1

pointScalarMult(List<int> point, List<int> scalar) → List<int>

mul point with scalar r = P*a

scAddVar(List<int> scalar, List<int> scalar2) → List<int>

scAddVarBig(List<int> scalar, BigInt scalar2) → List<int>

scalarAsBig(List<int> scalar) → BigInt

scalarmult8Const(List<int> p) → List<int>

mul scalar with 8 r = a*8;

scalarMultBase(List<int> scalar) → List<int>

reduce scalar and mult with base.

scalarReduceConst(List<int> scalar) → List<int>

reduce scalar constant-time

scalarReduceVar(List<int> scalar) → List<int>

reduce scalar

scCheck(List<int> bytes) → bool

check scalar is valid

scCheckVar(List<int> scalar) → bool

scIsZero(List<int> scalar) → bool

check scalar is zero

scMulAddVar(List<int> scalar, List<int> scalar2, List<int> scalar3) → List<int>

scMulVar(List<int> scalar, List<int> scalar2) → List<int>

scMulVarBigInt(List<int> scalar, BigInt scalar2) → List<int>

scSubVar(List<int> scalar, List<int> scalar2) → List<int>

scSubVarBigInt(List<int> scalar, BigInt scalar2) → List<int>

secretKeyToPubKey({required List<int> secretKey}) → List<int>

generate public key from valid secret scalar bytes.

sub(List<int> scalar1, List<int> scalar2) → List<int>

sub two scalar r = a-b

zero() → List<int>

create 32 bytes zero.