Function deriveMessageAuthenticationKey

deriveMessageAuthenticationKey(
    sourceKeyMaterial: Uint8Array,
    salt?: Uint8Array<ArrayBufferLike>,
): Promise<
    JsonWebKey & {
        crv?: undefined;
        d?: undefined;
        dp?: undefined;
        dq?: undefined;
        e?: undefined;
        n?: undefined;
        oth?: undefined;
        p?: undefined;
        q?: undefined;
        qi?: undefined;
        x?: undefined;
        y?: undefined;
    } & {
        alg: "HS256";
        k: string;
        key_ops: readonly ("sign" | "verify")[];
        kty: "oct";
        use: "sig";
    },
>
Derives a symmetric message authentication key from source key material.
Parameters
- sourceKeyMaterial: Uint8Array
  The source bytes to derive from.
- Optionalsalt: Uint8Array<ArrayBufferLike>
  Optional HKDF salt. An empty salt is used when omitted.
Returns Promise<
    JsonWebKey & {
        crv?: undefined;
        d?: undefined;
        dp?: undefined;
        dq?: undefined;
        e?: undefined;
        n?: undefined;
        oth?: undefined;
        p?: undefined;
        q?: undefined;
        qi?: undefined;
        x?: undefined;
        y?: undefined;
    } & {
        alg: "HS256";
        k: string;
        key_ops: readonly ("sign" | "verify")[];
        kty: "oct";
        use: "sig";
    },
>
The derived message authentication key.
- Defined in src/MessageAuthentication/deriveMessageAuthenticationKey/index.ts:18