@polkadot/util-crypto/hmac/shaAsU8a.js

A collection of useful crypto utilities for @polkadot

import { hmac } from '@noble/hashes/hmac';
import { sha256 } from '@noble/hashes/sha256';
import { sha512 } from '@noble/hashes/sha512';
import { hasBigInt, u8aToU8a } from '@polkadot/util';
import { hmacSha256, hmacSha512, isReady } from '@polkadot/wasm-crypto';
const JS_HASH = {
    256: sha256,
    512: sha512
};
const WA_MHAC = {
    256: hmacSha256,
    512: hmacSha512
};
function createSha(bitLength) {
    return (key, data, onlyJs) => hmacShaAsU8a(key, data, bitLength, onlyJs);
}
/**
 * @name hmacShaAsU8a
 * @description creates a Hmac Sha (256/512) Uint8Array from the key & data
 */
export function hmacShaAsU8a(key, data, bitLength = 256, onlyJs) {
    const u8aKey = u8aToU8a(key);
    return !hasBigInt || (!onlyJs && isReady())
        ? WA_MHAC[bitLength](u8aKey, data)
        : hmac(JS_HASH[bitLength], u8aKey, data);
}
/**
 * @name hmacSha256AsU8a
 * @description creates a Hmac Sha256 Uint8Array from the key & data
 */
export const hmacSha256AsU8a = /*#__PURE__*/ createSha(256);
/**
 * @name hmacSha512AsU8a
 * @description creates a Hmac Sha512 Uint8Array from the key & data
 */
export const hmacSha512AsU8a = /*#__PURE__*/ createSha(512);