/**
* Argon2 KDF from RFC 9106. Can be used to create a key from password and salt.
* We suggest to use Scrypt. JS Argon is 2-10x slower than native code because of 64-bitness:
* * argon uses uint64, but JS doesn't have fast uint64array
* * uint64 multiplication is 1/3 of time
* * `P` function would be very nice with u64, because most of value will be in registers,
* hovewer with u32 it will require 32 registers, which is too much.
* * JS arrays do slow bound checks, so reading from `A2_BUF` slows it down
* @module
*/
import { add3H, add3L, rotr32H, rotr32L, rotrBH, rotrBL, rotrSH, rotrSL } from "./_u64.js";
import { blake2b } from "./blake2.js";
import { anumber, clean, kdfInputToBytes, nextTick, swap32IfBE, swap8IfBE, u32, u8, } from "./utils.js";
// RFC 9106 §3.1 type `y`: 0 = Argon2d, 1 = Argon2i, 2 = Argon2id. The numeric values are the
// spec-bound part here; the object keys are internal labels.
const AT = { Argond2d: 0, Argon2i: 1, Argon2id: 2 };
// RFC 9106 sync points constant `SL = 4`, fixed by the design rather than exposed as a tuning knob.
const ARGON2_SYNC_POINTS = 4;
// Preserve Argon2's `LE32(len(X)) || X` encoding for omitted
// optional fields by emitting empty bytes.
const abytesOrZero = (buf, errorTitle = '') => {
if (buf === undefined)
return Uint8Array.of();
return kdfInputToBytes(buf, errorTitle);
};
// Unsigned `u32 * u32 = { h, l }`, returned as split 64-bit halves.
function mul(a, b) {
// Split into 16-bit limbs so each partial product stays exact under `Math.imul`.
const aL = a & 0xffff;
const aH = a >>> 16;
const bL = b & 0xffff;
const bH = b >>> 16;
const ll = Math.imul(aL, bL);
const hl = Math.imul(aH, bL);
const lh = Math.imul(aL, bH);
const hh = Math.imul(aH, bH);
const carry = (ll >>> 16) + (hl & 0xffff) + lh;
const high = (hh + (hl >>> 16) + (carry >>> 16)) | 0;
const low = (carry << 16) | (ll & 0xffff);
return { h: high, l: low };
}
function mul2(a, b) {
// Double the split 64-bit product; carry from `l` is folded back into `h` via `l >>> 31`.
const { h, l } = mul(a, b);
return { h: ((h << 1) | (l >>> 31)) & 0xffff_ffff, l: (l << 1) & 0xffff_ffff };
}
// BlaMka permutation for Argon2
// `A + B + 2 * trunc(A) * trunc(B)`, where `trunc(...)` means the low 32-bit halves.
function blamka(Ah, Al, Bh, Bl) {
const { h: Ch, l: Cl } = mul2(Al, Bl);
// A + B + (2 * A * B)
const Rll = add3L(Al, Bl, Cl);
return { h: add3H(Rll, Ah, Bh, Ch), l: Rll | 0 };
}
// Temporary block buffer.
// 1024-byte block: 256 u32 = 128 interleaved low/high halves = RFC's
// 8x8 matrix of 16-byte registers.
const A2_BUF = new Uint32Array(256);
// Quarter-round over 64-bit word indices into `A2_BUF`; each index maps to adjacent low/high u32s.
function G(a, b, c, d) {
let Al = A2_BUF[2 * a], Ah = A2_BUF[2 * a + 1]; // prettier-ignore
let Bl = A2_BUF[2 * b], Bh = A2_BUF[2 * b + 1]; // prettier-ignore
let Cl = A2_BUF[2 * c], Ch = A2_BUF[2 * c + 1]; // prettier-ignore
let Dl = A2_BUF[2 * d], Dh = A2_BUF[2 * d + 1]; // prettier-ignore
// RFC 9106 Figure 19 GB rotates by 32, 24, 16, and 63 bits after each XOR step.
({ h: Ah, l: Al } = blamka(Ah, Al, Bh, Bl));
({ Dh, Dl } = { Dh: Dh ^ Ah, Dl: Dl ^ Al });
({ Dh, Dl } = { Dh: rotr32H(Dh, Dl), Dl: rotr32L(Dh, Dl) });
({ h: Ch, l: Cl } = blamka(Ch, Cl, Dh, Dl));
({ Bh, Bl } = { Bh: Bh ^ Ch, Bl: Bl ^ Cl });
({ Bh, Bl } = { Bh: rotrSH(Bh, Bl, 24), Bl: rotrSL(Bh, Bl, 24) });
({ h: Ah, l: Al } = blamka(Ah, Al, Bh, Bl));
({ Dh, Dl } = { Dh: Dh ^ Ah, Dl: Dl ^ Al });
({ Dh, Dl } = { Dh: rotrSH(Dh, Dl, 16), Dl: rotrSL(Dh, Dl, 16) });
({ h: Ch, l: Cl } = blamka(Ch, Cl, Dh, Dl));
({ Bh, Bl } = { Bh: Bh ^ Ch, Bl: Bl ^ Cl });
({ Bh, Bl } = { Bh: rotrBH(Bh, Bl, 63), Bl: rotrBL(Bh, Bl, 63) });
((A2_BUF[2 * a] = Al), (A2_BUF[2 * a + 1] = Ah));
((A2_BUF[2 * b] = Bl), (A2_BUF[2 * b + 1] = Bh));
((A2_BUF[2 * c] = Cl), (A2_BUF[2 * c + 1] = Ch));
((A2_BUF[2 * d] = Dl), (A2_BUF[2 * d + 1] = Dh));
}
// Argon2 permutation over 16 register indices into `A2_BUF`, not the register values themselves.
// RFC 9106 Figure 17: these arguments are the 16 `v0..v15` 64-bit word
// indices inside eight 16-byte inputs, not copied word values.
// prettier-ignore
function P(v00, v01, v02, v03, v04, v05, v06, v07, v08, v09, v10, v11, v12, v13, v14, v15) {
// RFC 9106 Figure 18: first apply GB across rows, then across columns of the 8x8 register matrix.
G(v00, v04, v08, v12);
G(v01, v05, v09, v13);
G(v02, v06, v10, v14);
G(v03, v07, v11, v15);
G(v00, v05, v10, v15);
G(v01, v06, v11, v12);
G(v02, v07, v08, v13);
G(v03, v04, v09, v14);
}
function block(x, xPos, yPos, outPos, needXor) {
for (let i = 0; i < 256; i++)
A2_BUF[i] = x[xPos + i] ^ x[yPos + i];
// rows (8 consecutive 16-register groups)
for (let i = 0; i < 128; i += 16) {
// prettier-ignore
P(i, i + 1, i + 2, i + 3, i + 4, i + 5, i + 6, i + 7, i + 8, i + 9, i + 10, i + 11, i + 12, i + 13, i + 14, i + 15);
}
// columns (8 strided 16-register groups)
for (let i = 0; i < 16; i += 2) {
// prettier-ignore
P(i, i + 1, i + 16, i + 17, i + 32, i + 33, i + 48, i + 49, i + 64, i + 65, i + 80, i + 81, i + 96, i + 97, i + 112, i + 113);
}
// RFC 9106 step 6: passes after the first XOR the old destination block into the new G(X, Y).
if (needXor)
for (let i = 0; i < 256; i++)
x[outPos + i] ^= A2_BUF[i] ^ x[xPos + i] ^ x[yPos + i];
else
for (let i = 0; i < 256; i++)
x[outPos + i] = A2_BUF[i] ^ x[xPos + i] ^ x[yPos + i];
clean(A2_BUF);
}
// Variable-Length Hash Function H'
// Returns bytes, not words; 1024-byte block callers explicitly reinterpret with `u32(...)`.
function Hp(A, dkLen) {
const A8 = u8(A);
const T = new Uint32Array(1);
const T8 = u8(T);
// Argon2 H' prefixes dkLen as LE32; native Uint32Array writes would serialize as BE on s390x.
T[0] = swap8IfBE(dkLen);
// Fast path
if (dkLen <= 64)
return blake2b.create({ dkLen }).update(T8).update(A8).digest();
const out = new Uint8Array(dkLen);
let V = blake2b.create({}).update(T8).update(A8).digest();
let pos = 0;
// RFC 9106 Figure 8: each intermediate `V_i` contributes only `W_i`, its first 32 bytes; only
// `V_{r+1}` is emitted in full at the remaining length.
out.set(V.subarray(0, 32));
pos += 32;
// Rest blocks
for (; dkLen - pos > 64; pos += 32) {
const Vh = blake2b.create({}).update(V);
Vh.digestInto(V);
Vh.destroy();
out.set(V.subarray(0, 32), pos);
}
// Last block
out.set(blake2b(V, { dkLen: dkLen - pos }), pos);
clean(V, T);
// H' is byte-oriented; returning `u32(out)` would silently drop dkLen % 4 tail bytes.
return out;
}
// Used only inside process block!
function indexAlpha(r, s, laneLen, segmentLen, index, randL, sameLane = false) {
// RFC 9106 §3.4.2 Figures 12-13: map `J1` / `J2` into the current lane's reference area `W`.
let area;
if (r === 0) {
if (s === 0)
area = index - 1;
else if (sameLane)
area = s * segmentLen + index - 1;
else
area = s * segmentLen + (index == 0 ? -1 : 0);
}
else if (sameLane)
area = laneLen - segmentLen + index - 1;
else
area = laneLen - segmentLen + (index == 0 ? -1 : 0);
const startPos = r !== 0 && s !== ARGON2_SYNC_POINTS - 1 ? (s + 1) * segmentLen : 0;
// RFC 9106 Figure 13: `mul(randL, randL).h` is `floor(J_1^2 / 2^32)`, and the outer high-half
// multiply computes `floor(|W| * x / 2^32)` without floating-point math.
const rel = area - 1 - mul(area, mul(randL, randL).h).h;
return (startPos + rel) % laneLen;
}
// Exclusive `2^32` sentinel used by `isU32(...)`, not the inclusive maximum u32 value.
const maxUint32 = Math.pow(2, 32);
// Validate safe JS integers in `[0, 2^32 - 1]`.
function isU32(num) {
return Number.isSafeInteger(num) && num >= 0 && num < maxUint32;
}
function argon2Opts(opts) {
const merged = {
version: 0x13,
dkLen: 32,
maxmem: maxUint32 - 1,
asyncTick: 10,
};
// Unknown keys are copied through unchanged here and later ignored unless
// destructuring consumes them.
for (let [k, v] of Object.entries(opts))
if (v !== undefined)
merged[k] = v;
const { dkLen, p, m, t, version, onProgress, asyncTick } = merged;
// RFC 9106 §3.1: tag length `T` MUST be an integer number of bytes from 4 to 2^32-1.
if (!isU32(dkLen) || dkLen < 4)
throw new Error('"dkLen" must be 4..');
if (!isU32(p) || p < 1 || p >= Math.pow(2, 24))
throw new Error('"p" must be 1..2^24');
if (!isU32(m))
throw new Error('"m" must be 0..2^32');
if (!isU32(t) || t < 1)
throw new Error('"t" (iterations) must be 1..2^32');
if (onProgress !== undefined && typeof onProgress !== 'function')
throw new Error('"progressCb" must be a function');
anumber(asyncTick, 'asyncTick');
/*
Memory size m MUST be an integer number of kibibytes from 8*p
to 2^(32)-1. The actual number of blocks is m', which is m
rounded down to the nearest multiple of 4*p.
*/
if (!isU32(m) || m < 8 * p)
throw new Error('"m" (memory) must be at least 8*p bytes');
// Accept legacy `0x10` for compatibility even though RFC 9106 profiles standardize `0x13`.
if (version !== 0x10 && version !== 0x13)
throw new Error('"version" must be 0x10 or 0x13, got ' + version);
return merged;
}
function argon2Init(password, salt, type, opts) {
password = kdfInputToBytes(password, 'password');
salt = kdfInputToBytes(salt, 'salt');
if (!isU32(password.length))
throw new Error('"password" must be less of length 1..4Gb');
// RFC 9106 §3.1 only requires S <= 2^32-1 bytes and says 16 bytes is RECOMMENDED for password
// hashing; this library intentionally takes the stricter common >=8-byte salt path.
if (!isU32(salt.length) || salt.length < 8)
throw new Error('"salt" must be of length 8..4Gb');
if (!Object.values(AT).includes(type))
throw new Error('"type" was invalid');
let { p, dkLen, m, t, version, key, personalization, maxmem, onProgress, asyncTick } = argon2Opts(opts);
// Validation
key = abytesOrZero(key, 'key');
personalization = abytesOrZero(personalization, 'personalization');
// H_0 = H^(64)(LE32(p) || LE32(T) || LE32(m) || LE32(t) ||
// LE32(v) || LE32(y) || LE32(length(P)) || P ||
// LE32(length(S)) || S || LE32(length(K)) || K ||
// LE32(length(X)) || X)
const h = blake2b.create();
const BUF = new Uint32Array(1);
const BUF8 = u8(BUF);
for (let item of [p, dkLen, m, t, version, type]) {
// RFC 9106 H0 encodes these scalars as LE32, so normalize the host word before exposing bytes.
BUF[0] = swap8IfBE(item);
h.update(BUF8);
}
for (let i of [password, salt, key, personalization]) {
BUF[0] = swap8IfBE(i.length); // BUF is u32 array, this is valid once normalized to LE bytes
h.update(BUF8).update(i);
}
// Reserve two extra LE32 words after the 64-byte `H_0` so Figures 3-4 can append
// `LE32(0 or 1) || LE32(i)` in place for the lane-starting blocks.
const H0 = new Uint32Array(18);
const H0_8 = u8(H0);
h.digestInto(H0_8);
// 256 u32 = 1024 (BLOCK_SIZE), fills A2_BUF on processing
// Params
const lanes = p;
// m' = 4 * p * floor (m / 4p)
const mP = 4 * p * Math.floor(m / (ARGON2_SYNC_POINTS * p));
//q = m' / p columns
const laneLen = Math.floor(mP / p);
const segmentLen = Math.floor(laneLen / ARGON2_SYNC_POINTS);
// `maxmem` is documented in bytes; compare against the actual 1024-byte block allocation.
const memUsed = mP * 1024;
if (!isU32(maxmem))
throw new Error('"maxmem" expected <2**32, got ' + maxmem);
if (memUsed > maxmem)
throw new Error('"maxmem" limit was hit: memUsed(mP*1024)=' + memUsed + ', maxmem=' + maxmem);
const B = new Uint32Array(memUsed / 4);
// Fill first blocks
for (let l = 0; l < p; l++) {
const i = 256 * laneLen * l;
// B[i][0] = H'^(1024)(H_0 || LE32(0) || LE32(i))
H0[17] = swap8IfBE(l);
H0[16] = swap8IfBE(0);
B.set(swap32IfBE(u32(Hp(H0, 1024))), i);
// B[i][1] = H'^(1024)(H_0 || LE32(1) || LE32(i))
H0[16] = swap8IfBE(1);
B.set(swap32IfBE(u32(Hp(H0, 1024))), i + 256);
}
let perBlock = () => { };
if (onProgress) {
// The first segment of the first pass skips two preinitialized blocks per lane.
const totalBlock = t * ARGON2_SYNC_POINTS * p * segmentLen - 2 * p;
// Invoke callback if progress changes from 10.01 to 10.02
// Allows to draw smooth progress bar on up to 8K screen
const callbackPer = Math.max(Math.floor(totalBlock / 10000), 1);
let blockCnt = 0;
perBlock = () => {
blockCnt++;
if (onProgress && (!(blockCnt % callbackPer) || blockCnt === totalBlock))
onProgress(blockCnt / totalBlock);
};
}
clean(BUF, H0);
return { type, mP, p, t, version, B, laneLen, lanes, segmentLen, dkLen, perBlock, asyncTick };
}
function argon2Output(B, p, laneLen, dkLen) {
const B_final = new Uint32Array(256);
for (let l = 0; l < p; l++)
for (let j = 0; j < 256; j++)
B_final[j] ^= B[256 * (laneLen * l + laneLen - 1) + j];
// RFC 9106 steps 7-8 feed the byte string `C` into `H'^T(C)`, so normalize the xor'ed words
// back to spec byte order before `Hp(...)` reinterprets them as bytes.
const res = Hp(swap32IfBE(B_final), dkLen);
// Wipe both the xor scratch and the full working matrix once final digest bytes exist.
// JS cleanup is still only best-effort, but this local buffer is no longer needed here.
clean(B, B_final);
return res;
}
function processBlock(B, address, l, r, s, index, laneLen, segmentLen, lanes, offset, prev, dataIndependent, needXor) {
if (offset % laneLen)
prev = offset - 1;
let randL, randH;
if (dataIndependent) {
let i128 = index % 128;
// RFC 9106 §3.4.1.2: each 1024-byte address block yields 128 `(J1, J2)` pairs, so regenerate
// it whenever the segment index crosses a multiple of 128.
if (i128 === 0) {
address[256 + 12]++;
block(address, 256, 2 * 256, 0, false);
block(address, 0, 2 * 256, 0, false);
}
randL = address[2 * i128];
randH = address[2 * i128 + 1];
}
else {
const T = 256 * prev;
randL = B[T];
randH = B[T + 1];
}
// Address-block path selects `J1` / `J2`, then maps them to the reference
// lane/block per RFC 9106 §3.4.
const refLane = r === 0 && s === 0 ? l : randH % lanes;
const refPos = indexAlpha(r, s, laneLen, segmentLen, index, randL, refLane == l);
const refBlock = laneLen * refLane + refPos;
// B[i][j] = G(B[i][j-1], B[l][z])
block(B, 256 * prev, 256 * refBlock, offset * 256, needXor);
}
function argon2(type, password, salt, opts) {
const { mP, p, t, version, B, laneLen, lanes, segmentLen, dkLen, perBlock } = argon2Init(password, salt, type, opts);
// Pre-loop setup
// [address, input, zero_block] format so we can pass single U32 to block function
const address = new Uint32Array(3 * 256);
address[256 + 6] = mP;
address[256 + 8] = t;
address[256 + 10] = type;
for (let r = 0; r < t; r++) {
// RFC 9106 step 6 applies the XOR-on-later-passes rule only for version `0x13`; legacy
// `0x10` keeps the older overwrite behavior used by the v16 test vectors.
const needXor = r !== 0 && version === 0x13;
address[256 + 0] = r;
for (let s = 0; s < ARGON2_SYNC_POINTS; s++) {
address[256 + 4] = s;
// RFC 9106 §3.4.1.3: Argon2id uses Argon2i's data-independent `J1` / `J2` generation only
// in pass 0, slices 0 and 1; Argon2i uses it in every segment.
const dataIndependent = type == AT.Argon2i || (type == AT.Argon2id && r === 0 && s < 2);
for (let l = 0; l < p; l++) {
address[256 + 2] = l;
address[256 + 12] = 0;
let startPos = 0;
if (r === 0 && s === 0) {
startPos = 2;
if (dataIndependent) {
address[256 + 12]++;
block(address, 256, 2 * 256, 0, false);
block(address, 0, 2 * 256, 0, false);
}
}
// current block postion
let offset = l * laneLen + s * segmentLen + startPos;
// previous block position
let prev = offset % laneLen ? offset - 1 : offset + laneLen - 1;
for (let index = startPos; index < segmentLen; index++, offset++, prev++) {
perBlock();
processBlock(B, address, l, r, s, index, laneLen, segmentLen, lanes, offset, prev, dataIndependent, needXor);
}
}
}
}
clean(address);
return argon2Output(B, p, laneLen, dkLen);
}
/**
* Argon2d GPU-resistant version.
* @param password - password or input key material
* @param salt - unique salt value
* @param opts - Argon2 cost and optional tuning parameters. See {@link ArgonOpts}.
* @returns Derived key bytes.
* @throws If the Argon2 input or cost parameters are invalid. {@link Error}
* @example
* Derive a key with Argon2d.
* ```ts
* argon2d('password', 'salt1234', { t: 1, m: 8, p: 1, dkLen: 32 });
* ```
*/
export const argon2d = (password, salt, opts) => argon2(AT.Argond2d, password, salt, opts);
/**
* Argon2i side-channel-resistant version.
* @param password - password or input key material
* @param salt - unique salt value
* @param opts - Argon2 cost and optional tuning parameters. See {@link ArgonOpts}.
* @returns Derived key bytes.
* @throws If the Argon2 input or cost parameters are invalid. {@link Error}
* @example
* Derive a key with Argon2i.
* ```ts
* argon2i('password', 'salt1234', { t: 1, m: 8, p: 1, dkLen: 32 });
* ```
*/
export const argon2i = (password, salt, opts) => argon2(AT.Argon2i, password, salt, opts);
/**
* Argon2id, combining i+d, the most popular version from RFC 9106.
* @param password - password or input key material
* @param salt - unique salt value
* @param opts - Argon2 cost and optional tuning parameters. See {@link ArgonOpts}.
* @returns Derived key bytes.
* @throws If the Argon2 input or cost parameters are invalid. {@link Error}
* @example
* Derive a key with Argon2id.
* ```ts
* argon2id('password', 'salt1234', { t: 1, m: 8, p: 1, dkLen: 32 });
* ```
*/
export const argon2id = (password, salt, opts) => argon2(AT.Argon2id, password, salt, opts);
async function argon2Async(type, password, salt, opts) {
const { mP, p, t, version, B, laneLen, lanes, segmentLen, dkLen, perBlock, asyncTick } = argon2Init(password, salt, type, opts);
// Pre-loop setup
// [address, input, zero_block] format so we can pass single U32 to block function
const address = new Uint32Array(3 * 256);
address[256 + 6] = mP;
address[256 + 8] = t;
address[256 + 10] = type;
let ts = Date.now();
for (let r = 0; r < t; r++) {
// RFC 9106 step 6 applies the XOR-on-later-passes rule only for version `0x13`; legacy
// `0x10` keeps the older overwrite behavior used by the v16 test vectors.
const needXor = r !== 0 && version === 0x13;
address[256 + 0] = r;
for (let s = 0; s < ARGON2_SYNC_POINTS; s++) {
address[256 + 4] = s;
// RFC 9106 §3.4.1.3: Argon2id uses Argon2i's data-independent `J1` / `J2` generation only
// in pass 0, slices 0 and 1; Argon2i uses it in every segment.
const dataIndependent = type == AT.Argon2i || (type == AT.Argon2id && r === 0 && s < 2);
for (let l = 0; l < p; l++) {
address[256 + 2] = l;
address[256 + 12] = 0;
let startPos = 0;
if (r === 0 && s === 0) {
startPos = 2;
if (dataIndependent) {
address[256 + 12]++;
block(address, 256, 2 * 256, 0, false);
block(address, 0, 2 * 256, 0, false);
}
}
// current block postion
let offset = l * laneLen + s * segmentLen + startPos;
// previous block position
let prev = offset % laneLen ? offset - 1 : offset + laneLen - 1;
for (let index = startPos; index < segmentLen; index++, offset++, prev++) {
perBlock();
processBlock(B, address, l, r, s, index, laneLen, segmentLen, lanes, offset, prev, dataIndependent, needXor);
// Date.now() is not monotonic. If the clock goes backwards,
// still yield control.
const diff = Date.now() - ts;
if (!(diff >= 0 && diff < asyncTick)) {
await nextTick();
ts += diff;
}
}
}
}
}
clean(address);
return argon2Output(B, p, laneLen, dkLen);
}
/**
* Argon2d async GPU-resistant version.
* @param password - password or input key material
* @param salt - unique salt value
* @param opts - Argon2 cost and optional tuning parameters. See {@link ArgonOpts}.
* @returns Promise resolving to derived key bytes.
* @throws If the Argon2 input or cost parameters are invalid. {@link Error}
* @example
* Derive a key with Argon2d asynchronously.
* ```ts
* await argon2dAsync('password', 'salt1234', { t: 1, m: 8, p: 1, dkLen: 32 });
* ```
*/
export const argon2dAsync = (password, salt, opts) => argon2Async(AT.Argond2d, password, salt, opts);
/**
* Argon2i async side-channel-resistant version.
* @param password - password or input key material
* @param salt - unique salt value
* @param opts - Argon2 cost and optional tuning parameters. See {@link ArgonOpts}.
* @returns Promise resolving to derived key bytes.
* @throws If the Argon2 input or cost parameters are invalid. {@link Error}
* @example
* Derive a key with Argon2i asynchronously.
* ```ts
* await argon2iAsync('password', 'salt1234', { t: 1, m: 8, p: 1, dkLen: 32 });
* ```
*/
export const argon2iAsync = (password, salt, opts) => argon2Async(AT.Argon2i, password, salt, opts);
/**
* Argon2id async, combining i+d, the most popular version from RFC 9106.
* @param password - password or input key material
* @param salt - unique salt value
* @param opts - Argon2 cost and optional tuning parameters. See {@link ArgonOpts}.
* @returns Promise resolving to derived key bytes.
* @throws If the Argon2 input or cost parameters are invalid. {@link Error}
* @example
* Derive a key with Argon2id asynchronously.
* ```ts
* await argon2idAsync('password', 'salt1234', { t: 1, m: 8, p: 1, dkLen: 32 });
* ```
*/
export const argon2idAsync = (password, salt, opts) => argon2Async(AT.Argon2id, password, salt, opts);
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