import type { Array16, Array8 } from '../../types/array/module.f.ts';
import { type Vec } from '../../types/bit_vec/module.f.ts';
import { type List } from '../../types/list/module.f.ts';
export type V8 = Array8<bigint>;
export type V16 = Array16<bigint>;
/**
 * Type definition for the state of the SHA-2 algorithm.
 */
export type State = {
    /**
     * The current hash value.
     */
    readonly hash: V8;
    /**
     * The length of the data processed so far.
     */
    readonly len: bigint;
    /**
     * The remaining data that has not yet been processed.
     */
    readonly remainder: Vec;
};
export type Base = {
    readonly bitLength: bigint;
    readonly chunkLength: bigint;
    readonly compress: (i: V8) => (u: bigint) => V8;
    readonly fromV8: (a: V8) => bigint;
    readonly append: (state: State) => (v: Vec) => State;
    readonly end: (hashLength: bigint) => (state: State) => bigint;
};
/**
 * SHA2. See https://en.wikipedia.org/wiki/SHA-2
 *
 * @example
 *
 * ```js
 * const s = msbUtf8("The quick brown fox jumps over the lazy dog.")
 * let state = sha224.init
 * state = sha224.append(state)(s)
 * const h = sha224.end(state) // 0x619cba8e8e05826e9b8c519c0a5c68f4fb653e8a3d8aa04bb2c8cd4cn
 * ```
 */
export type Sha2 = {
    /**
     * A hash length.
     */
    readonly hashLength: bigint;
    /**
     * An internal block length.
     */
    readonly blockLength: bigint;
    /**
     * Initial state of the SHA-2 algorithm.
     */
    readonly init: State;
    /**
     * Appends data to the state and returns the new state.
     *
     * @param state The current state.
     * @param v The data to append.
     * @returns The new state after appending data.
     */
    readonly append: (state: State) => (v: Vec) => State;
    /**
     * Finalizes the hash and returns the result as a bigint.
     *
     * @param state The final state.
     * @returns The resulting hash.
     */
    readonly end: (state: State) => bigint;
};
export declare const computeSync: ({ append, init, end }: Sha2) => (list: List<Vec>) => Vec;
export declare const base32: Base;
export declare const base64: Base;
/** SHA-256 */
export declare const sha256: Sha2;
/** SHA-224 */
export declare const sha224: Sha2;
/** SHA-512 */
export declare const sha512: Sha2;
/** SHA-384 */
export declare const sha384: Sha2;
/** SHA-512/256 */
export declare const sha512x256: Sha2;
/** SHA-512/224 */
export declare const sha512x224: Sha2;