Struct Sm2

pub struct Sm2;

SM2 elliptic curve.

Trait Implementations

impl AssociatedOid for Sm2

Available on crate feature pkcs8 only.

const OID: ObjectIdentifier

The OID associated with this type.

impl Clone for Sm2

fn clone(&self) -> Sm2

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Curve for Sm2

const ORDER: U256

Order of SM2’s elliptic curve group (i.e. scalar modulus).

type FieldBytesSize = UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>

24-byte serialized field elements.

type Uint = Uint<crypto_bigint::::uint::U256::{constant#0}>

Big integer type used for representing field elements.

impl CurveArithmetic for Sm2

Available on crate feature arithmetic only.

type AffinePoint = AffinePoint<Sm2>

Elliptic curve point in affine coordinates.

type ProjectivePoint = ProjectivePoint<Sm2>

Elliptic curve point in projective coordinates.

type Scalar = Scalar

Scalar field modulo this curve’s order.

impl Debug for Sm2

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Sm2

fn default() -> Sm2

Returns the “default value” for a type.

impl FieldBytesEncoding<Sm2> for U256

fn decode_field_bytes(field_bytes: &FieldBytes) -> Self

Decode unsigned integer from serialized field element.

fn encode_field_bytes(&self) -> FieldBytes

Encode unsigned integer into serialized field element.

impl Ord for Sm2

fn cmp(&self, other: &Sm2) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Sm2

fn eq(&self, other: &Sm2) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Sm2

fn partial_cmp(&self, other: &Sm2) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl PointCompression for Sm2

const COMPRESS_POINTS: bool = false

SM2 points are typically uncompressed.

impl PrimeCurveArithmetic for Sm2

Available on crate feature arithmetic only.

type CurveGroup = ProjectivePoint<Sm2>

Prime order elliptic curve group.

impl PrimeCurveParams for Sm2

Available on crate feature arithmetic only.

Adapted from draft-shen-sm2-ecdsa Appendix D: Recommended Parameters.

const EQUATION_A: FieldElement

a = -3 (0xFFFFFFFE FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF 00000000 FFFFFFFF FFFFFFFC)

const EQUATION_B: FieldElement

b = 0x28E9FA9E 9D9F5E34 4D5A9E4B CF6509A7 F39789F5 15AB8F92 DDBCBD41 4D940E93

const GENERATOR: (FieldElement, FieldElement)

Base point of SM2.

Gₓ = 0x32C4AE2C 1F198119 5F990446 6A39C994 8FE30BBF F2660BE1 715A4589 334C74C7
Gᵧ = 0xBC3736A2 F4F6779C 59BDCEE3 6B692153 D0A9877C C62A4740 02DF32E5 2139F0A0

type FieldElement = FieldElement

Base field element type.

type PointArithmetic = EquationAIsMinusThree

Point arithmetic implementation, might be optimized for this specific curve

impl ToEncodedPoint<Sm2> for VerifyingKey

Available on crate features arithmetic and dsa only.

fn to_encoded_point(&self, compress: bool) -> EncodedPoint

Serialize this value as a SEC1 EncodedPoint, optionally applying point compression.

impl Copy for Sm2

impl Eq for Sm2

impl PrimeCurve for Sm2

impl StructuralPartialEq for Sm2