@zlattice/lattice-js/dist/esm/crypto/sm3/utils.d.ts

Lattice blockchain TypeScript SDK with dual module support (CJS + ESM)

export type TypedArray = Int8Array | Uint8ClampedArray | Uint8Array | Uint16Array | Int16Array | Uint32Array | Int32Array;
export declare const u8: (arr: TypedArray) => Uint8Array<ArrayBufferLike>;
export declare const u32: (arr: TypedArray) => Uint32Array<ArrayBufferLike>;
export declare const createView: (arr: TypedArray) => DataView<ArrayBufferLike>;
export declare const rotr: (word: number, shift: number) => number;
export declare const isLE: boolean;
/**
 * @example bytesToHex(Uint8Array.from([0xca, 0xfe, 0x01, 0x23])) // 'cafe0123'
 */
export declare function bytesToHex(bytes: Uint8Array): string;
/**
 * @example hexToBytes('cafe0123') // Uint8Array.from([0xca, 0xfe, 0x01, 0x23])
 */
export declare function hexToBytes(hex: string): Uint8Array;
/**
 * @example utf8ToBytes('abc') // new Uint8Array([97, 98, 99])
 */
export declare function utf8ToBytes(str: string): Uint8Array;
export type Input = Uint8Array | string;
/**
 * Normalizes (non-hex) string or Uint8Array to Uint8Array.
 * Warning: when Uint8Array is passed, it would NOT get copied.
 * Keep in mind for future mutable operations.
 */
export declare function toBytes(data: Input): Uint8Array;
export declare abstract class Hash<T extends Hash<T>> {
    abstract blockLen: number;
    abstract outputLen: number;
    abstract update(buf: Input): this;
    abstract digestInto(buf: Uint8Array): void;
    abstract digest(): Uint8Array;
    /**
     * Resets internal state. Makes Hash instance unusable.
     * Reset is impossible for keyed hashes if key is consumed into state. If digest is not consumed
     * by user, they will need to manually call `destroy()` when zeroing is necessary.
     */
    abstract destroy(): void;
    /**
     * Clones hash instance. Unsafe: doesn't check whether `to` is valid. Can be used as `clone()`
     * when no options are passed.
     * Reasons to use `_cloneInto` instead of clone: 1) performance 2) reuse instance => all internal
     * buffers are overwritten => causes buffer overwrite which is used for digest in some cases.
     * There are no guarantees for clean-up because it's impossible in JS.
     */
    abstract _cloneInto(to?: T): T;
    clone(): T;
}
export type CHash = ReturnType<typeof wrapConstructor>;
export declare function wrapConstructor<T extends Hash<T>>(hashCons: () => Hash<T>): {
    (msg: Input): Uint8Array;
    outputLen: number;
    blockLen: number;
    create(): Hash<T>;
};
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