68 lines
2.2 KiB
Plaintext
68 lines
2.2 KiB
Plaintext
import { type IField } from './modular.ts';
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export type PoseidonBasicOpts = {
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Fp: IField<bigint>;
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t: number;
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roundsFull: number;
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roundsPartial: number;
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isSboxInverse?: boolean;
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};
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export type PoseidonGrainOpts = PoseidonBasicOpts & {
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sboxPower?: number;
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};
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type PoseidonConstants = {
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mds: bigint[][];
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roundConstants: bigint[][];
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};
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export declare function grainGenConstants(opts: PoseidonGrainOpts, skipMDS?: number): PoseidonConstants;
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export type PoseidonOpts = PoseidonBasicOpts & PoseidonConstants & {
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sboxPower?: number;
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reversePartialPowIdx?: boolean;
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};
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export declare function validateOpts(opts: PoseidonOpts): Readonly<{
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rounds: number;
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sboxFn: (n: bigint) => bigint;
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roundConstants: bigint[][];
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mds: bigint[][];
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Fp: IField<bigint>;
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t: number;
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roundsFull: number;
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roundsPartial: number;
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sboxPower?: number;
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reversePartialPowIdx?: boolean;
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}>;
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export declare function splitConstants(rc: bigint[], t: number): bigint[][];
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export type PoseidonFn = {
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(values: bigint[]): bigint[];
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roundConstants: bigint[][];
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};
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/** Poseidon NTT-friendly hash. */
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export declare function poseidon(opts: PoseidonOpts): PoseidonFn;
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export declare class PoseidonSponge {
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private Fp;
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readonly rate: number;
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readonly capacity: number;
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readonly hash: PoseidonFn;
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private state;
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private pos;
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private isAbsorbing;
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constructor(Fp: IField<bigint>, rate: number, capacity: number, hash: PoseidonFn);
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private process;
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absorb(input: bigint[]): void;
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squeeze(count: number): bigint[];
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clean(): void;
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clone(): PoseidonSponge;
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}
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export type PoseidonSpongeOpts = Omit<PoseidonOpts, 't'> & {
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rate: number;
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capacity: number;
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};
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/**
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* The method is not defined in spec, but nevertheless used often.
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* Check carefully for compatibility: there are many edge cases, like absorbing an empty array.
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* We cross-test against:
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* - https://github.com/ProvableHQ/snarkVM/tree/staging/algorithms
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* - https://github.com/arkworks-rs/crypto-primitives/tree/main
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*/
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export declare function poseidonSponge(opts: PoseidonSpongeOpts): () => PoseidonSponge;
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export {};
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//# sourceMappingURL=poseidon.d.ts.map |