+++ /dev/null
-//! SPDX-FileCopyrightText: 2025 Chris Duncan <chris@zoso.dev>\r
-//! SPDX-License-Identifier: GPL-3.0-or-later\r
-\r
-'use strict'\r
-\r
-import { Blake2b } from '#src/lib/blake2b.js'\r
-import { hex } from '#src/lib/convert.js'\r
-import { Key, NamedData } from '#types'\r
-\r
-/**\r
-* Ported in 2014 by Dmitry Chestnykh and Devi Mandiri.\r
-* Public domain.\r
-*\r
-* Implementation derived from TweetNaCl version 20140427.\r
-* See for details: http://tweetnacl.cr.yp.to/\r
-*\r
-* Modified in 2024 by Chris Duncan to hash secret key to public key using\r
-* BLAKE2b instead of SHA-512 as specified in the documentation for Nano\r
-* cryptocurrency.\r
-* See for details: https://docs.nano.org/integration-guides/the-basics/\r
-* Original source commit: https://github.com/dchest/tweetnacl-js/blob/71df1d6a1d78236ca3e9f6c788786e21f5a651a6/nacl-fast.js\r
-*/\r
-export class NanoNaCl {\r
- static async work (data: NamedData<string | ArrayBuffer>): Promise<NamedData> {\r
- if (typeof data.method !== 'string'\r
- || !(data.msg == null || data.msg instanceof ArrayBuffer)\r
- || !(data.privateKey == null || data.privateKey instanceof ArrayBuffer)\r
- || !(data.publicKey == null || data.publicKey instanceof ArrayBuffer)\r
- || !(data.signature == null || data.signature instanceof ArrayBuffer)\r
- ) {\r
- throw new TypeError('Invalid NanoNaCl input')\r
- }\r
- const method = data.method\r
- const msg = new Uint8Array(data.msg)\r
- const privateKey = new Uint8Array(data.privateKey)\r
- const publicKey = new Uint8Array(data.publicKey)\r
- const signature = new Uint8Array(data.signature)\r
- try {\r
- switch (method) {\r
- case 'convert': {\r
- return { publicKey: (await this.convert(privateKey)).buffer }\r
- }\r
- case 'detached': {\r
- return { signature: (await this.detached(msg, privateKey)).buffer }\r
- }\r
- case 'verify': {\r
- return { isVerified: await this.verify(msg, signature, publicKey) }\r
- }\r
- default: {\r
- throw new TypeError(`unknown NanoNaCl method ${method}`)\r
- }\r
- }\r
- } catch (err) {\r
- throw new Error(`NanoNaCl worker failed on ${method ?? 'unknown method'}`, { cause: err })\r
- }\r
- }\r
-\r
- static gf = function (init?: number[]): Float64Array {\r
- const r = new Float64Array(16)\r
- if (init) for (let i = 0; i < init.length; i++) {\r
- r[i] = init[i]\r
- }\r
- return r\r
- }\r
-\r
- static gf0: Float64Array = this.gf()\r
- static gf1: Float64Array = this.gf([1])\r
- static D: Float64Array = this.gf([0x78a3, 0x1359, 0x4dca, 0x75eb, 0xd8ab, 0x4141, 0x0a4d, 0x0070, 0xe898, 0x7779, 0x4079, 0x8cc7, 0xfe73, 0x2b6f, 0x6cee, 0x5203])\r
- static D2: Float64Array = this.gf([0xf159, 0x26b2, 0x9b94, 0xebd6, 0xb156, 0x8283, 0x149a, 0x00e0, 0xd130, 0xeef3, 0x80f2, 0x198e, 0xfce7, 0x56df, 0xd9dc, 0x2406])\r
- static X: Float64Array = this.gf([0xd51a, 0x8f25, 0x2d60, 0xc956, 0xa7b2, 0x9525, 0xc760, 0x692c, 0xdc5c, 0xfdd6, 0xe231, 0xc0a4, 0x53fe, 0xcd6e, 0x36d3, 0x2169])\r
- static Y: Float64Array = this.gf([0x6658, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666])\r
- static I: Float64Array = this.gf([0xa0b0, 0x4a0e, 0x1b27, 0xc4ee, 0xe478, 0xad2f, 0x1806, 0x2f43, 0xd7a7, 0x3dfb, 0x0099, 0x2b4d, 0xdf0b, 0x4fc1, 0x2480, 0x2b83])\r
-\r
- static vn (x: Uint8Array, xi: number, y: Uint8Array, yi: number, n: number): number {\r
- let d = 0\r
- for (let i = 0; i < n; i++) {\r
- d |= x[xi + i] ^ y[yi + i]\r
- }\r
- return (1 & ((d - 1) >>> 8)) - 1\r
- }\r
-\r
- static crypto_verify_32 (x: Uint8Array, xi: number, y: Uint8Array, yi: number): number {\r
- return this.vn(x, xi, y, yi, 32)\r
- }\r
-\r
- static set25519 (r: Float64Array, a: Float64Array): void {\r
- for (let i = 0; i < 16; i++) {\r
- r[i] = a[i] | 0\r
- }\r
- }\r
-\r
- static car25519 (o: Float64Array): void {\r
- let v, c = 1\r
- for (let i = 0; i < 16; i++) {\r
- v = o[i] + c + 65535\r
- c = Math.floor(v / 65536)\r
- o[i] = v - c * 65536\r
- }\r
- o[0] += 38 * (c - 1)\r
- }\r
-\r
- static sel25519 (p: Float64Array, q: Float64Array, b: number): void {\r
- let t\r
- const c = ~(b - 1)\r
- for (let i = 0; i < 16; i++) {\r
- t = c & (p[i] ^ q[i])\r
- p[i] ^= t\r
- q[i] ^= t\r
- }\r
- }\r
-\r
- static pack25519 (o: Uint8Array, n: Float64Array): void {\r
- let b: number\r
- const m: Float64Array = this.gf()\r
- const t: Float64Array = this.gf()\r
- for (let i = 0; i < 16; i++) {\r
- t[i] = n[i]\r
- }\r
- this.car25519(t)\r
- this.car25519(t)\r
- this.car25519(t)\r
- for (let j = 0; j < 2; j++) {\r
- m[0] = t[0] - 0xffed\r
- for (let i = 1; i < 15; i++) {\r
- m[i] = t[i] - 0xffff - ((m[i - 1] >> 16) & 1)\r
- m[i - 1] &= 0xffff\r
- }\r
- m[15] = t[15] - 0x7fff - ((m[14] >> 16) & 1)\r
- b = (m[15] >> 16) & 1\r
- m[14] &= 0xffff\r
- this.sel25519(t, m, 1 - b)\r
- }\r
- for (let i = 0; i < 16; i++) {\r
- o[2 * i] = t[i] & 0xff\r
- o[2 * i + 1] = t[i] >> 8\r
- }\r
- }\r
-\r
- static neq25519 (a: Float64Array, b: Float64Array): number {\r
- const c = new Uint8Array(32)\r
- const d = new Uint8Array(32)\r
- this.pack25519(c, a)\r
- this.pack25519(d, b)\r
- return this.crypto_verify_32(c, 0, d, 0)\r
- }\r
-\r
- static par25519 (a: Float64Array): number {\r
- const d = new Uint8Array(32)\r
- this.pack25519(d, a)\r
- return d[0] & 1\r
- }\r
-\r
- static unpack25519 (o: Float64Array, n: Uint8Array): void {\r
- for (let i = 0; i < 16; i++) {\r
- o[i] = n[2 * i] + (n[2 * i + 1] << 8)\r
- }\r
- o[15] &= (1 << 15) - 1\r
- }\r
-\r
- static A (o: Float64Array, a: Float64Array, b: Float64Array): void {\r
- for (let i = 0; i < 16; i++) {\r
- o[i] = a[i] + b[i]\r
- }\r
- }\r
-\r
- static Z (o: Float64Array, a: Float64Array, b: Float64Array): void {\r
- for (let i = 0; i < 16; i++) {\r
- o[i] = a[i] - b[i]\r
- }\r
- }\r
-\r
- static M (o: Float64Array, a: Float64Array, b: Float64Array): void {\r
- let v, c, s = 1 << 16, t = new Array(31)\r
- t.fill(0)\r
-\r
- // init t values\r
- for (let i = 0; i < 16; i++) {\r
- for (let j = 0; j < 16; j++) {\r
- t[i + j] += a[i] * b[j]\r
- }\r
- }\r
-\r
- for (let i = 0; i < 15; i++) {\r
- t[i] += 38 * t[i + 16]\r
- }\r
- // t15 left as is\r
-\r
- // first carry\r
- c = 1\r
- for (let i = 0; i < 16; i++) {\r
- v = t[i] + c + s - 1\r
- c = Math.floor(v / s)\r
- t[i] = v - c * s\r
- }\r
- t[0] += 38 * (c - 1)\r
-\r
- // second carry\r
- c = 1\r
- for (let i = 0; i < 16; i++) {\r
- v = t[i] + c + s - 1\r
- c = Math.floor(v / s)\r
- t[i] = v - c * s\r
- }\r
- t[0] += 38 * (c - 1)\r
-\r
- // assign result to output\r
- for (let i = 0; i < 16; i++) {\r
- o[i] = t[i]\r
- }\r
- }\r
-\r
- static S (o: Float64Array, a: Float64Array): void {\r
- this.M(o, a, a)\r
- }\r
-\r
- static inv25519 (o: Float64Array, i: Float64Array): void {\r
- const c: Float64Array = new Float64Array(16)\r
- for (let a = 0; a < 16; a++) {\r
- c[a] = i[a]\r
- }\r
- for (let a = 253; a >= 0; a--) {\r
- this.S(c, c)\r
- if (a !== 2 && a !== 4) this.M(c, c, i)\r
- }\r
- for (let a = 0; a < 16; a++) {\r
- o[a] = c[a]\r
- }\r
- }\r
-\r
- static pow2523 (o: Float64Array, i: Float64Array): void {\r
- const c: Float64Array = this.gf()\r
- for (let a = 0; a < 16; a++) {\r
- c[a] = i[a]\r
- }\r
- for (let a = 250; a >= 0; a--) {\r
- this.S(c, c)\r
- if (a !== 1) this.M(c, c, i)\r
- }\r
- for (let a = 0; a < 16; a++) {\r
- o[a] = c[a]\r
- }\r
- }\r
-\r
- // Note: difference from TweetNaCl - BLAKE2b used to hash instead of SHA-512.\r
- static crypto_hash (out: Uint8Array, m: Uint8Array, n: number): number {\r
- const input = new Uint8Array(n)\r
- for (let i = 0; i < n; ++i) {\r
- input[i] = m[i]\r
- }\r
- const hash = new Blake2b(64).update(m).digest()\r
- for (let i = 0; i < 64; ++i) {\r
- out[i] = hash[i]\r
- }\r
- return 0\r
- }\r
-\r
- static add (p: Float64Array[], q: Float64Array[]): void {\r
- const a: Float64Array = this.gf()\r
- const b: Float64Array = this.gf()\r
- const c: Float64Array = this.gf()\r
- const d: Float64Array = this.gf()\r
- const e: Float64Array = this.gf()\r
- const f: Float64Array = this.gf()\r
- const g: Float64Array = this.gf()\r
- const h: Float64Array = this.gf()\r
- const t: Float64Array = this.gf()\r
-\r
- this.Z(a, p[1], p[0])\r
- this.Z(t, q[1], q[0])\r
- this.M(a, a, t)\r
- this.A(b, p[0], p[1])\r
- this.A(t, q[0], q[1])\r
- this.M(b, b, t)\r
- this.M(c, p[3], q[3])\r
- this.M(c, c, this.D2)\r
- this.M(d, p[2], q[2])\r
- this.A(d, d, d)\r
- this.Z(e, b, a)\r
- this.Z(f, d, c)\r
- this.A(g, d, c)\r
- this.A(h, b, a)\r
-\r
- this.M(p[0], e, f)\r
- this.M(p[1], h, g)\r
- this.M(p[2], g, f)\r
- this.M(p[3], e, h)\r
- }\r
-\r
- static cswap (p: Float64Array[], q: Float64Array[], b: number): void {\r
- for (let i = 0; i < 4; i++) {\r
- this.sel25519(p[i], q[i], b)\r
- }\r
- }\r
-\r
- static pack (r: Uint8Array, p: Float64Array[]): void {\r
- const tx: Float64Array = this.gf()\r
- const ty: Float64Array = this.gf()\r
- const zi: Float64Array = this.gf()\r
- this.inv25519(zi, p[2])\r
- this.M(tx, p[0], zi)\r
- this.M(ty, p[1], zi)\r
- this.pack25519(r, ty)\r
- r[31] ^= this.par25519(tx) << 7\r
- }\r
-\r
- static scalarmult (p: Float64Array[], q: Float64Array[], s: Uint8Array): void {\r
- this.set25519(p[0], this.gf0)\r
- this.set25519(p[1], this.gf1)\r
- this.set25519(p[2], this.gf1)\r
- this.set25519(p[3], this.gf0)\r
- for (let i = 255; i >= 0; --i) {\r
- const b = (s[(i / 8) | 0] >> (i & 7)) & 1\r
- this.cswap(p, q, b)\r
- this.add(q, p)\r
- this.add(p, p)\r
- this.cswap(p, q, b)\r
- }\r
- }\r
-\r
- static scalarbase (p: Float64Array[], s: Uint8Array): void {\r
- const q: Float64Array[] = [this.gf(), this.gf(), this.gf(), this.gf()]\r
- this.set25519(q[0], this.X)\r
- this.set25519(q[1], this.Y)\r
- this.set25519(q[2], this.gf1)\r
- this.M(q[3], this.X, this.Y)\r
- this.scalarmult(p, q, s)\r
- }\r
-\r
- static L = new Float64Array([\r
- 0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58,\r
- 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10\r
- ])\r
-\r
- static modL (r: Uint8Array, x: Float64Array): void {\r
- let carry, i, j, k\r
- for (i = 63; i >= 32; --i) {\r
- carry = 0\r
- for (j = i - 32, k = i - 12; j < k; ++j) {\r
- x[j] += carry - 16 * x[i] * this.L[j - (i - 32)]\r
- carry = Math.floor((x[j] + 128) / 256)\r
- x[j] -= carry * 256\r
- }\r
- x[j] += carry\r
- x[i] = 0\r
- }\r
- carry = 0\r
- for (j = 0; j < 32; j++) {\r
- x[j] += carry - (x[31] >> 4) * this.L[j]\r
- carry = x[j] >> 8\r
- x[j] &= 255\r
- }\r
- for (j = 0; j < 32; j++) {\r
- x[j] -= carry * this.L[j]\r
- }\r
- for (i = 0; i < 32; i++) {\r
- x[i + 1] += x[i] >> 8\r
- r[i] = x[i] & 255\r
- }\r
- }\r
-\r
- static reduce (r: Uint8Array): void {\r
- let x = new Float64Array(64)\r
- for (let i = 0; i < 64; i++) {\r
- x[i] = r[i]\r
- }\r
- for (let i = 0; i < 64; i++) {\r
- r[i] = 0\r
- }\r
- this.modL(r, x)\r
- }\r
-\r
- // Note: difference from C - smlen returned, not passed as argument.\r
- static crypto_sign (sm: Uint8Array, m: Uint8Array, n: number, sk: Uint8Array, pk: Uint8Array): number {\r
- const d = new Uint8Array(64)\r
- const h = new Uint8Array(64)\r
- const r = new Uint8Array(64)\r
- const x = new Float64Array(64)\r
- const p: Float64Array[] = [this.gf(), this.gf(), this.gf(), this.gf()]\r
-\r
- this.crypto_hash(d, sk, 32)\r
- d[0] &= 248\r
- d[31] &= 127\r
- d[31] |= 64\r
-\r
- const smlen = n + 64\r
- for (let i = 0; i < n; i++) {\r
- sm[64 + i] = m[i]\r
- }\r
- for (let i = 0; i < 32; i++) {\r
- sm[32 + i] = d[32 + i]\r
- }\r
-\r
- this.crypto_hash(r, sm.subarray(32), n + 32)\r
- this.reduce(r)\r
- this.scalarbase(p, r)\r
- this.pack(sm, p)\r
-\r
- for (let i = 0; i < 32; i++) {\r
- sm[i + 32] = pk[i]\r
- }\r
- this.crypto_hash(h, sm, n + 64)\r
- this.reduce(h)\r
-\r
- for (let i = 0; i < 64; i++) {\r
- x[i] = 0\r
- }\r
- for (let i = 0; i < 32; i++) {\r
- x[i] = r[i]\r
- }\r
- for (let i = 0; i < 32; i++) {\r
- for (let j = 0; j < 32; j++) {\r
- x[i + j] += h[i] * d[j]\r
- }\r
- }\r
-\r
- this.modL(sm.subarray(32), x)\r
- return smlen\r
- }\r
-\r
- static unpackneg (r: Float64Array[], p: Uint8Array): -1 | 0 {\r
- const t: Float64Array = this.gf()\r
- const chk: Float64Array = this.gf()\r
- const num: Float64Array = this.gf()\r
- const den: Float64Array = this.gf()\r
- const den2: Float64Array = this.gf()\r
- const den4: Float64Array = this.gf()\r
- const den6: Float64Array = this.gf()\r
-\r
- this.set25519(r[2], this.gf1)\r
- this.unpack25519(r[1], p)\r
- this.S(num, r[1])\r
- this.M(den, num, this.D)\r
- this.Z(num, num, r[2])\r
- this.A(den, r[2], den)\r
-\r
- this.S(den2, den)\r
- this.S(den4, den2)\r
- this.M(den6, den4, den2)\r
- this.M(t, den6, num)\r
- this.M(t, t, den)\r
-\r
- this.pow2523(t, t)\r
- this.M(t, t, num)\r
- this.M(t, t, den)\r
- this.M(t, t, den)\r
- this.M(r[0], t, den)\r
-\r
- this.S(chk, r[0])\r
- this.M(chk, chk, den)\r
- if (this.neq25519(chk, num)) this.M(r[0], r[0], this.I)\r
-\r
- this.S(chk, r[0])\r
- this.M(chk, chk, den)\r
-\r
- if (this.neq25519(chk, num)) return -1\r
-\r
- if (this.par25519(r[0]) === (p[31] >> 7)) this.Z(r[0], this.gf0, r[0])\r
- this.M(r[3], r[0], r[1])\r
- return 0\r
- }\r
-\r
- static crypto_sign_open (m: Uint8Array, sm: Uint8Array, n: number, pk: Uint8Array): number {\r
- const t = new Uint8Array(32)\r
- const h = new Uint8Array(64)\r
- const p: Float64Array[] = [this.gf(), this.gf(), this.gf(), this.gf()]\r
- const q: Float64Array[] = [this.gf(), this.gf(), this.gf(), this.gf()]\r
-\r
- if (n < 64) return -1\r
-\r
- if (this.unpackneg(q, pk)) return -1\r
-\r
- for (let i = 0; i < n; i++) {\r
- m[i] = sm[i]\r
- }\r
- for (let i = 0; i < 32; i++) {\r
- m[i + 32] = pk[i]\r
- }\r
- this.crypto_hash(h, m, n)\r
- this.reduce(h)\r
- this.scalarmult(p, q, h)\r
-\r
- this.scalarbase(q, sm.subarray(32))\r
- this.add(p, q)\r
- this.pack(t, p)\r
-\r
- n -= 64\r
- if (this.crypto_verify_32(sm, 0, t, 0)) {\r
- for (let i = 0; i < n; i++) {\r
- m[i] = 0\r
- }\r
- return -1\r
- }\r
-\r
- for (let i = 0; i < n; i++) {\r
- m[i] = sm[i + 64]\r
- }\r
- return n\r
- }\r
-\r
- static crypto_sign_BYTES: 64 = 64\r
- static crypto_sign_PUBLICKEYBYTES: 32 = 32\r
- static crypto_sign_PRIVATEKEYBYTES: 32 = 32\r
- static crypto_sign_SEEDBYTES: 32 = 32\r
-\r
- /* High-level API */\r
- static checkArrayTypes (...args: Uint8Array<ArrayBuffer>[]): void {\r
- for (let i = 0; i < args.length; i++) {\r
- if (!(args[i] instanceof Uint8Array)) {\r
- throw new TypeError(`expected Uint8Array; actual ${args[i].constructor?.name ?? typeof args[i]}`)\r
- }\r
- }\r
- }\r
-\r
- static sign (msg: Uint8Array<ArrayBuffer>, privateKey: Uint8Array<ArrayBuffer>): Uint8Array<ArrayBuffer> {\r
- this.checkArrayTypes(msg, privateKey)\r
- if (privateKey.byteLength !== this.crypto_sign_PRIVATEKEYBYTES) {\r
- throw new Error(`expected key size ${this.crypto_sign_PRIVATEKEYBYTES} bytes; actual key size ${privateKey.byteLength} bytes`)\r
- }\r
- const signedMsg = new Uint8Array(this.crypto_sign_BYTES + msg.length)\r
- const publicKey = this.convert(privateKey)\r
- this.crypto_sign(signedMsg, msg, msg.length, privateKey, publicKey)\r
- return signedMsg\r
- }\r
-\r
- static open (signedMsg: Uint8Array<ArrayBuffer>, publicKey: Uint8Array<ArrayBuffer>): Uint8Array<ArrayBuffer> {\r
- this.checkArrayTypes(signedMsg, publicKey)\r
- if (publicKey.length !== this.crypto_sign_PUBLICKEYBYTES) {\r
- throw new Error('bad public key size')\r
- }\r
- const tmp = new Uint8Array(signedMsg.length)\r
- const mlen = this.crypto_sign_open(tmp, signedMsg, signedMsg.length, publicKey)\r
-\r
- if (mlen < 0) return new Uint8Array(0)\r
-\r
- const m = new Uint8Array(mlen)\r
- for (let i = 0; i < m.length; i++) {\r
- m[i] = tmp[i]\r
- }\r
- return m\r
- }\r
-\r
- static detached (msg: Uint8Array<ArrayBuffer>, privateKey: Uint8Array<ArrayBuffer>): Uint8Array<ArrayBuffer> {\r
- const signedMsg = this.sign(msg, privateKey)\r
- const sig = new Uint8Array(this.crypto_sign_BYTES)\r
- for (let i = 0; i < sig.length; i++) {\r
- sig[i] = signedMsg[i]\r
- }\r
- return sig\r
- }\r
-\r
- static verify (msg: Uint8Array<ArrayBuffer>, sig: Uint8Array<ArrayBuffer>, publicKey: Uint8Array<ArrayBuffer>): boolean {\r
- this.checkArrayTypes(msg, sig, publicKey)\r
- if (sig.length !== this.crypto_sign_BYTES) {\r
- throw new Error('bad signature size')\r
- }\r
- if (publicKey.length !== this.crypto_sign_PUBLICKEYBYTES) {\r
- throw new Error('bad public key size')\r
- }\r
- const sm = new Uint8Array(this.crypto_sign_BYTES + msg.length)\r
- const m = new Uint8Array(this.crypto_sign_BYTES + msg.length)\r
- for (let i = 0; i < this.crypto_sign_BYTES; i++) {\r
- sm[i] = sig[i]\r
- }\r
- for (let i = 0; i < msg.length; i++) {\r
- sm[i + this.crypto_sign_BYTES] = msg[i]\r
- }\r
- return (this.crypto_sign_open(m, sm, sm.length, publicKey) >= 0)\r
- }\r
-\r
- /**\r
- * Derives a public key from a private key.\r
- *\r
- * @param {Key} seed - 32-byte private key\r
- * @returns 32-byte public key byte array\r
- */\r
- static convert (seed: Key): Uint8Array<ArrayBuffer> {\r
- if (typeof seed === 'string') seed = hex.toBytes(seed)\r
- this.checkArrayTypes(seed)\r
- if (seed.length !== this.crypto_sign_SEEDBYTES) {\r
- throw new Error('bad seed size')\r
- }\r
- const pk = new Uint8Array(this.crypto_sign_PUBLICKEYBYTES)\r
- const p: Float64Array[] = [this.gf(), this.gf(), this.gf(), this.gf()]\r
-\r
- const hash = new Uint8Array(64)\r
- this.crypto_hash(hash, seed, 64)\r
- hash[0] &= 248\r
- hash[31] &= 127\r
- hash[31] |= 64\r
-\r
- this.scalarbase(p, hash)\r
- this.pack(pk, p)\r
-\r
- return pk\r
- }\r
-}\r