Struct PodG2

#[repr(transparent)]
pub struct PodG2(pub [u8; 128]);

The BN254 (BN128) group element in G2 as a POD type.

Elements in G2 is represented by 2 field-extension elements (x, y). Each field-extension element itself is a degree 1 polynomial x = x0 + x1*X, y = y0 + y1*X. The EIP-197 standard encodes a G2 element as [be(x1), be(x0), be(y1), be(y0)] where be(..) is the big-endian encoding of the input field element. The ark-bn254 crate encodes a G2 element as [le(x0), le(x1), le(y0), le(y1)] where le(..) is the little-endian encoding of the input field element. Notably, in addition to the differences in the big-endian vs. little-endian encodings of field elements, the order of the polynomial field coefficients x0, x1, y0, and y1 are different.

THe Solana syscalls still expect the inputs to be encoded as specified in EIP-197. The type PodG2 is an intermediate type that facilitates the translation between the `EIP-197 encoding and the encoding used in the arkworks implementation.

Tuple Fields

0: [u8; 128]

Trait Implementations

impl Clone for PodG2

fn clone(&self) -> PodG2

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PodG2

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

Formats the value using the given formatter.

impl PartialEq for PodG2

fn eq(&self, other: &PodG2) -> 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 TryFrom<PodG2> for G2Affine

type Error = AltBn128Error

The type returned in the event of a conversion error.

fn try_from(bytes: PodG2) -> Result<Self, Self::Error>

Performs the conversion.

impl Zeroable for PodG2

fn zeroed() -> Self

Calls zeroed.

impl Copy for PodG2

impl Eq for PodG2

impl Pod for PodG2

impl StructuralPartialEq for PodG2