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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@bitgo/sdk-coin-vet/node_modules/@noble/hashes
Просмотр файла: utils.d.ts
/**
* Utilities for hex, bytes, CSPRNG.
* @module
*/
/*! noble-hashes - MIT License (c) 2022 Paul Miller (paulmillr.com) */
export declare function isBytes(a: unknown): a is Uint8Array;
export type TypedArray = Int8Array | Uint8ClampedArray | Uint8Array | Uint16Array | Int16Array | Uint32Array | Int32Array;
export declare function u8(arr: TypedArray): Uint8Array;
export declare function u32(arr: TypedArray): Uint32Array;
export declare function createView(arr: TypedArray): DataView;
/** The rotate right (circular right shift) operation for uint32 */
export declare function rotr(word: number, shift: number): number;
/** The rotate left (circular left shift) operation for uint32 */
export declare function rotl(word: number, shift: number): number;
/** Is current platform little-endian? Most are. Big-Endian platform: IBM */
export declare const isLE: boolean;
export declare function byteSwap(word: number): number;
/** Conditionally byte swap if on a big-endian platform */
export declare const byteSwapIfBE: (n: number) => number;
/** In place byte swap for Uint32Array */
export declare function byteSwap32(arr: Uint32Array): void;
/**
* Convert byte array to hex string.
* @example bytesToHex(Uint8Array.from([0xca, 0xfe, 0x01, 0x23])) // 'cafe0123'
*/
export declare function bytesToHex(bytes: Uint8Array): string;
/**
* Convert hex string to byte array.
* @example hexToBytes('cafe0123') // Uint8Array.from([0xca, 0xfe, 0x01, 0x23])
*/
export declare function hexToBytes(hex: string): Uint8Array;
/**
* There is no setImmediate in browser and setTimeout is slow.
* Call of async fn will return Promise, which will be fullfiled only on
* next scheduler queue processing step and this is exactly what we need.
*/
export declare const nextTick: () => Promise<void>;
/** Returns control to thread each 'tick' ms to avoid blocking. */
export declare function asyncLoop(iters: number, tick: number, cb: (i: number) => void): Promise<void>;
/**
* Convert JS string to byte array.
* @example utf8ToBytes('abc') // new Uint8Array([97, 98, 99])
*/
export declare function utf8ToBytes(str: string): Uint8Array;
/** Accepted input of hash functions. Strings are converted to byte arrays. */
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;
/**
* Copies several Uint8Arrays into one.
*/
export declare function concatBytes(...arrays: Uint8Array[]): Uint8Array;
/** For runtime check if class implements interface */
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;
}
/**
* XOF: streaming API to read digest in chunks.
* Same as 'squeeze' in keccak/k12 and 'seek' in blake3, but more generic name.
* When hash used in XOF mode it is up to user to call '.destroy' afterwards, since we cannot
* destroy state, next call can require more bytes.
*/
export type HashXOF<T extends Hash<T>> = Hash<T> & {
xof(bytes: number): Uint8Array;
xofInto(buf: Uint8Array): Uint8Array;
};
type EmptyObj = {};
export declare function checkOpts<T1 extends EmptyObj, T2 extends EmptyObj>(defaults: T1, opts?: T2): T1 & T2;
/** Hash function */
export type CHash = ReturnType<typeof wrapConstructor>;
/** Hash function with output */
export type CHashO = ReturnType<typeof wrapConstructorWithOpts>;
/** XOF with output */
export type CHashXO = ReturnType<typeof wrapXOFConstructorWithOpts>;
/** Wraps hash function, creating an interface on top of it */
export declare function wrapConstructor<T extends Hash<T>>(hashCons: () => Hash<T>): {
(msg: Input): Uint8Array;
outputLen: number;
blockLen: number;
create(): Hash<T>;
};
export declare function wrapConstructorWithOpts<H extends Hash<H>, T extends Object>(hashCons: (opts?: T) => Hash<H>): {
(msg: Input, opts?: T): Uint8Array;
outputLen: number;
blockLen: number;
create(opts: T): Hash<H>;
};
export declare function wrapXOFConstructorWithOpts<H extends HashXOF<H>, T extends Object>(hashCons: (opts?: T) => HashXOF<H>): {
(msg: Input, opts?: T): Uint8Array;
outputLen: number;
blockLen: number;
create(opts: T): HashXOF<H>;
};
/** Cryptographically secure PRNG. Uses internal OS-level `crypto.getRandomValues`. */
export declare function randomBytes(bytesLength?: number): Uint8Array;
export {};
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