bot-28/node/node_modules/@noble/hashes/hkdf.d.ts

import { CHash, Input } from './utils.js';
/**
 * HKDF-Extract(IKM, salt) -> PRK
 * Arguments position differs from spec (IKM is first one, since it is not optional)
 * @param hash
 * @param ikm
 * @param salt
 * @returns
 */
export declare function extract(hash: CHash, ikm: Input, salt?: Input): Uint8Array;
/**
 * HKDF-expand from the spec.
 * @param prk - a pseudorandom key of at least HashLen octets (usually, the output from the extract step)
 * @param info - optional context and application specific information (can be a zero-length string)
 * @param length - length of output keying material in octets
 */
export declare function expand(hash: CHash, prk: Input, info?: Input, length?: number): Uint8Array;
/**
 * HKDF (RFC 5869): extract + expand in one step.
 * @param hash - hash function that would be used (e.g. sha256)
 * @param ikm - input keying material, the initial key
 * @param salt - optional salt value (a non-secret random value)
 * @param info - optional context and application specific information
 * @param length - length of output keying material in octets
 */
export declare const hkdf: (hash: CHash, ikm: Input, salt: Input | undefined, info: Input | undefined, length: number) => Uint8Array;
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