// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. // Copyright Joyent, Inc. and Node.js contributors. All rights reserved. MIT license. import { notImplemented } from "ext:deno_node/_utils.ts"; import { isAnyArrayBuffer, isArrayBufferView, } from "ext:deno_node/internal/util/types.ts"; import { ERR_CRYPTO_UNKNOWN_DH_GROUP, ERR_INVALID_ARG_TYPE, NodeError, } from "ext:deno_node/internal/errors.ts"; import { validateInt32, validateString, } from "ext:deno_node/internal/validators.mjs"; import { Buffer } from "ext:deno_node/buffer.ts"; import { EllipticCurve, ellipticCurves, getDefaultEncoding, toBuf, } from "ext:deno_node/internal/crypto/util.ts"; import type { BinaryLike, BinaryToTextEncoding, ECDHKeyFormat, } from "ext:deno_node/internal/crypto/types.ts"; import { KeyObject } from "ext:deno_node/internal/crypto/keys.ts"; import type { BufferEncoding } from "ext:deno_node/_global.d.ts"; const { ops } = Deno.core; const DH_GENERATOR = 2; export class DiffieHellman { verifyError!: number; #prime: Buffer; #primeLength: number; #generator: Buffer; #privateKey: Buffer; #publicKey: Buffer; constructor( sizeOrKey: number | string | ArrayBufferView, keyEncoding?: unknown, generator?: unknown, genEncoding?: unknown, ) { if ( typeof sizeOrKey !== "number" && typeof sizeOrKey !== "string" && !isArrayBufferView(sizeOrKey) && !isAnyArrayBuffer(sizeOrKey) ) { throw new ERR_INVALID_ARG_TYPE( "sizeOrKey", ["number", "string", "ArrayBuffer", "Buffer", "TypedArray", "DataView"], sizeOrKey, ); } if (typeof sizeOrKey === "number") { validateInt32(sizeOrKey, "sizeOrKey"); } if ( keyEncoding && !Buffer.isEncoding(keyEncoding as BinaryToTextEncoding) && keyEncoding !== "buffer" ) { genEncoding = generator; generator = keyEncoding; keyEncoding = false; } const encoding = getDefaultEncoding(); keyEncoding = keyEncoding || encoding; genEncoding = genEncoding || encoding; if (typeof sizeOrKey !== "number") { this.#prime = toBuf(sizeOrKey as string, keyEncoding as string); } else { // The supplied parameter is our primeLength, generate a suitable prime. this.#primeLength = sizeOrKey as number; if (this.#primeLength < 2) { throw new NodeError("ERR_OSSL_BN_BITS_TOO_SMALL", "bits too small"); } this.#prime = Buffer.from( ops.op_node_gen_prime(this.#primeLength).buffer, ); } if (!generator) { // While the commonly used cyclic group generators for DH are 2 and 5, we // need this a buffer, because, well.. Node. this.#generator = Buffer.alloc(4); this.#generator.writeUint32BE(DH_GENERATOR); } else if (typeof generator === "number") { validateInt32(generator, "generator"); this.#generator = Buffer.alloc(4); if (generator <= 0 || generator >= 0x7fffffff) { throw new NodeError("ERR_OSSL_DH_BAD_GENERATOR", "bad generator"); } this.#generator.writeUint32BE(generator); } else if (typeof generator === "string") { generator = toBuf(generator, genEncoding as string); this.#generator = generator; } else if (!isArrayBufferView(generator) && !isAnyArrayBuffer(generator)) { throw new ERR_INVALID_ARG_TYPE( "generator", ["number", "string", "ArrayBuffer", "Buffer", "TypedArray", "DataView"], generator, ); } else { this.#generator = Buffer.from(generator); } this.#checkGenerator(); // TODO(lev): actually implement this value this.verifyError = 0; } #checkGenerator(): number { let generator: number; if (this.#generator.length == 0) { throw new NodeError("ERR_OSSL_DH_BAD_GENERATOR", "bad generator"); } else if (this.#generator.length == 1) { generator = this.#generator.readUint8(); } else if (this.#generator.length == 2) { generator = this.#generator.readUint16BE(); } else { generator = this.#generator.readUint32BE(); } if (generator != 2 && generator != 5) { throw new NodeError("ERR_OSSL_DH_BAD_GENERATOR", "bad generator"); } return generator; } computeSecret(otherPublicKey: ArrayBufferView): Buffer; computeSecret( otherPublicKey: string, inputEncoding: BinaryToTextEncoding, ): Buffer; computeSecret( otherPublicKey: ArrayBufferView, outputEncoding: BinaryToTextEncoding, ): string; computeSecret( otherPublicKey: string, inputEncoding: BinaryToTextEncoding, outputEncoding: BinaryToTextEncoding, ): string; computeSecret( otherPublicKey: ArrayBufferView | string, inputEncoding?: BinaryToTextEncoding, outputEncoding?: BinaryToTextEncoding, ): Buffer | string { let buf; if (inputEncoding != undefined && inputEncoding != "buffer") { buf = Buffer.from(otherPublicKey.buffer, inputEncoding); } else { buf = Buffer.from(otherPublicKey.buffer); } const sharedSecret = ops.op_node_dh_compute_secret( this.#prime, this.#privateKey, buf, ); if (outputEncoding == undefined || outputEncoding == "buffer") { return Buffer.from(sharedSecret.buffer); } return Buffer.from(sharedSecret.buffer).toString(outputEncoding); } generateKeys(): Buffer; generateKeys(encoding: BinaryToTextEncoding): string; generateKeys(_encoding?: BinaryToTextEncoding): Buffer | string { const generator = this.#checkGenerator(); const [privateKey, publicKey] = ops.op_node_dh_generate2( this.#prime, this.#primeLength, generator, ); this.#privateKey = Buffer.from(privateKey.buffer); this.#publicKey = Buffer.from(publicKey.buffer); return this.#publicKey; } getGenerator(): Buffer; getGenerator(encoding: BinaryToTextEncoding): string; getGenerator(encoding?: BinaryToTextEncoding): Buffer | string { if (encoding !== undefined && encoding != "buffer") { return this.#generator.toString(encoding); } return this.#generator; } getPrime(): Buffer; getPrime(encoding: BinaryToTextEncoding): string; getPrime(encoding?: BinaryToTextEncoding): Buffer | string { if (encoding !== undefined && encoding != "buffer") { return this.#prime.toString(encoding); } return this.#prime; } getPrivateKey(): Buffer; getPrivateKey(encoding: BinaryToTextEncoding): string; getPrivateKey(encoding?: BinaryToTextEncoding): Buffer | string { if (encoding !== undefined && encoding != "buffer") { return this.#privateKey.toString(encoding); } return this.#privateKey; } getPublicKey(): Buffer; getPublicKey(encoding: BinaryToTextEncoding): string; getPublicKey(encoding?: BinaryToTextEncoding): Buffer | string { if (encoding !== undefined && encoding != "buffer") { return this.#publicKey.toString(encoding); } return this.#publicKey; } setPrivateKey(privateKey: ArrayBufferView): void; setPrivateKey(privateKey: string, encoding: BufferEncoding): void; setPrivateKey( privateKey: ArrayBufferView | string, encoding?: BufferEncoding, ) { if (encoding == undefined || encoding == "buffer") { this.#privateKey = Buffer.from(privateKey); } else { this.#privateKey = Buffer.from(privateKey, encoding); } } setPublicKey(publicKey: ArrayBufferView): void; setPublicKey(publicKey: string, encoding: BufferEncoding): void; setPublicKey( publicKey: ArrayBufferView | string, encoding?: BufferEncoding, ) { if (encoding == undefined || encoding == "buffer") { this.#publicKey = Buffer.from(publicKey); } else { this.#publicKey = Buffer.from(publicKey, encoding); } } } const DH_GROUP_NAMES = [ "modp5", "modp14", "modp15", "modp16", "modp17", "modp18", ]; const DH_GROUPS = { "modp5": { prime: [ 0xFFFFFFFF, 0xFFFFFFFF, 0xC90FDAA2, 0x2168C234, 0xC4C6628B, 0x80DC1CD1, 0x29024E08, 0x8A67CC74, 0x020BBEA6, 0x3B139B22, 0x514A0879, 0x8E3404DD, 0xEF9519B3, 0xCD3A431B, 0x302B0A6D, 0xF25F1437, 0x4FE1356D, 0x6D51C245, 0xE485B576, 0x625E7EC6, 0xF44C42E9, 0xA637ED6B, 0x0BFF5CB6, 0xF406B7ED, 0xEE386BFB, 0x5A899FA5, 0xAE9F2411, 0x7C4B1FE6, 0x49286651, 0xECE45B3D, 0xC2007CB8, 0xA163BF05, 0x98DA4836, 0x1C55D39A, 0x69163FA8, 0xFD24CF5F, 0x83655D23, 0xDCA3AD96, 0x1C62F356, 0x208552BB, 0x9ED52907, 0x7096966D, 0x670C354E, 0x4ABC9804, 0xF1746C08, 0xCA237327, 0xFFFFFFFF, 0xFFFFFFFF, ], generator: 2, }, "modp14": { prime: [ 0xFFFFFFFF, 0xFFFFFFFF, 0xC90FDAA2, 0x2168C234, 0xC4C6628B, 0x80DC1CD1, 0x29024E08, 0x8A67CC74, 0x020BBEA6, 0x3B139B22, 0x514A0879, 0x8E3404DD, 0xEF9519B3, 0xCD3A431B, 0x302B0A6D, 0xF25F1437, 0x4FE1356D, 0x6D51C245, 0xE485B576, 0x625E7EC6, 0xF44C42E9, 0xA637ED6B, 0x0BFF5CB6, 0xF406B7ED, 0xEE386BFB, 0x5A899FA5, 0xAE9F2411, 0x7C4B1FE6, 0x49286651, 0xECE45B3D, 0xC2007CB8, 0xA163BF05, 0x98DA4836, 0x1C55D39A, 0x69163FA8, 0xFD24CF5F, 0x83655D23, 0xDCA3AD96, 0x1C62F356, 0x208552BB, 0x9ED52907, 0x7096966D, 0x670C354E, 0x4ABC9804, 0xF1746C08, 0xCA18217C, 0x32905E46, 0x2E36CE3B, 0xE39E772C, 0x180E8603, 0x9B2783A2, 0xEC07A28F, 0xB5C55DF0, 0x6F4C52C9, 0xDE2BCBF6, 0x95581718, 0x3995497C, 0xEA956AE5, 0x15D22618, 0x98FA0510, 0x15728E5A, 0x8AACAA68, 0xFFFFFFFF, 0xFFFFFFFF, ], generator: 2, }, "modp15": { prime: [ 0xFFFFFFFF, 0xFFFFFFFF, 0xC90FDAA2, 0x2168C234, 0xC4C6628B, 0x80DC1CD1, 0x29024E08, 0x8A67CC74, 0x020BBEA6, 0x3B139B22, 0x514A0879, 0x8E3404DD, 0xEF9519B3, 0xCD3A431B, 0x302B0A6D, 0xF25F1437, 0x4FE1356D, 0x6D51C245, 0xE485B576, 0x625E7EC6, 0xF44C42E9, 0xA637ED6B, 0x0BFF5CB6, 0xF406B7ED, 0xEE386BFB, 0x5A899FA5, 0xAE9F2411, 0x7C4B1FE6, 0x49286651, 0xECE45B3D, 0xC2007CB8, 0xA163BF05, 0x98DA4836, 0x1C55D39A, 0x69163FA8, 0xFD24CF5F, 0x83655D23, 0xDCA3AD96, 0x1C62F356, 0x208552BB, 0x9ED52907, 0x7096966D, 0x670C354E, 0x4ABC9804, 0xF1746C08, 0xCA18217C, 0x32905E46, 0x2E36CE3B, 0xE39E772C, 0x180E8603, 0x9B2783A2, 0xEC07A28F, 0xB5C55DF0, 0x6F4C52C9, 0xDE2BCBF6, 0x95581718, 0x3995497C, 0xEA956AE5, 0x15D22618, 0x98FA0510, 0x15728E5A, 0x8AAAC42D, 0xAD33170D, 0x04507A33, 0xA85521AB, 0xDF1CBA64, 0xECFB8504, 0x58DBEF0A, 0x8AEA7157, 0x5D060C7D, 0xB3970F85, 0xA6E1E4C7, 0xABF5AE8C, 0xDB0933D7, 0x1E8C94E0, 0x4A25619D, 0xCEE3D226, 0x1AD2EE6B, 0xF12FFA06, 0xD98A0864, 0xD8760273, 0x3EC86A64, 0x521F2B18, 0x177B200C, 0xBBE11757, 0x7A615D6C, 0x770988C0, 0xBAD946E2, 0x08E24FA0, 0x74E5AB31, 0x43DB5BFC, 0xE0FD108E, 0x4B82D120, 0xA93AD2CA, 0xFFFFFFFF, 0xFFFFFFFF, ], generator: 2, }, "modp16": { prime: [ 0xFFFFFFFF, 0xFFFFFFFF, 0xC90FDAA2, 0x2168C234, 0xC4C6628B, 0x80DC1CD1, 0x29024E08, 0x8A67CC74, 0x020BBEA6, 0x3B139B22, 0x514A0879, 0x8E3404DD, 0xEF9519B3, 0xCD3A431B, 0x302B0A6D, 0xF25F1437, 0x4FE1356D, 0x6D51C245, 0xE485B576, 0x625E7EC6, 0xF44C42E9, 0xA637ED6B, 0x0BFF5CB6, 0xF406B7ED, 0xEE386BFB, 0x5A899FA5, 0xAE9F2411, 0x7C4B1FE6, 0x49286651, 0xECE45B3D, 0xC2007CB8, 0xA163BF05, 0x98DA4836, 0x1C55D39A, 0x69163FA8, 0xFD24CF5F, 0x83655D23, 0xDCA3AD96, 0x1C62F356, 0x208552BB, 0x9ED52907, 0x7096966D, 0x670C354E, 0x4ABC9804, 0xF1746C08, 0xCA18217C, 0x32905E46, 0x2E36CE3B, 0xE39E772C, 0x180E8603, 0x9B2783A2, 0xEC07A28F, 0xB5C55DF0, 0x6F4C52C9, 0xDE2BCBF6, 0x95581718, 0x3995497C, 0xEA956AE5, 0x15D22618, 0x98FA0510, 0x15728E5A, 0x8AAAC42D, 0xAD33170D, 0x04507A33, 0xA85521AB, 0xDF1CBA64, 0xECFB8504, 0x58DBEF0A, 0x8AEA7157, 0x5D060C7D, 0xB3970F85, 0xA6E1E4C7, 0xABF5AE8C, 0xDB0933D7, 0x1E8C94E0, 0x4A25619D, 0xCEE3D226, 0x1AD2EE6B, 0xF12FFA06, 0xD98A0864, 0xD8760273, 0x3EC86A64, 0x521F2B18, 0x177B200C, 0xBBE11757, 0x7A615D6C, 0x770988C0, 0xBAD946E2, 0x08E24FA0, 0x74E5AB31, 0x43DB5BFC, 0xE0FD108E, 0x4B82D120, 0xA9210801, 0x1A723C12, 0xA787E6D7, 0x88719A10, 0xBDBA5B26, 0x99C32718, 0x6AF4E23C, 0x1A946834, 0xB6150BDA, 0x2583E9CA, 0x2AD44CE8, 0xDBBBC2DB, 0x04DE8EF9, 0x2E8EFC14, 0x1FBECAA6, 0x287C5947, 0x4E6BC05D, 0x99B2964F, 0xA090C3A2, 0x233BA186, 0x515BE7ED, 0x1F612970, 0xCEE2D7AF, 0xB81BDD76, 0x2170481C, 0xD0069127, 0xD5B05AA9, 0x93B4EA98, 0x8D8FDDC1, 0x86FFB7DC, 0x90A6C08F, 0x4DF435C9, 0x34063199, 0xFFFFFFFF, 0xFFFFFFFF, ], generator: 2, }, "modp17": { prime: [ 0xFFFFFFFF, 0xFFFFFFFF, 0xC90FDAA2, 0x2168C234, 0xC4C6628B, 0x80DC1CD1, 0x29024E08, 0x8A67CC74, 0x020BBEA6, 0x3B139B22, 0x514A0879, 0x8E3404DD, 0xEF9519B3, 0xCD3A431B, 0x302B0A6D, 0xF25F1437, 0x4FE1356D, 0x6D51C245, 0xE485B576, 0x625E7EC6, 0xF44C42E9, 0xA637ED6B, 0x0BFF5CB6, 0xF406B7ED, 0xEE386BFB, 0x5A899FA5, 0xAE9F2411, 0x7C4B1FE6, 0x49286651, 0xECE45B3D, 0xC2007CB8, 0xA163BF05, 0x98DA4836, 0x1C55D39A, 0x69163FA8, 0xFD24CF5F, 0x83655D23, 0xDCA3AD96, 0x1C62F356, 0x208552BB, 0x9ED52907, 0x7096966D, 0x670C354E, 0x4ABC9804, 0xF1746C08, 0xCA18217C, 0x32905E46, 0x2E36CE3B, 0xE39E772C, 0x180E8603, 0x9B2783A2, 0xEC07A28F, 0xB5C55DF0, 0x6F4C52C9, 0xDE2BCBF6, 0x95581718, 0x3995497C, 0xEA956AE5, 0x15D22618, 0x98FA0510, 0x15728E5A, 0x8AAAC42D, 0xAD33170D, 0x04507A33, 0xA85521AB, 0xDF1CBA64, 0xECFB8504, 0x58DBEF0A, 0x8AEA7157, 0x5D060C7D, 0xB3970F85, 0xA6E1E4C7, 0xABF5AE8C, 0xDB0933D7, 0x1E8C94E0, 0x4A25619D, 0xCEE3D226, 0x1AD2EE6B, 0xF12FFA06, 0xD98A0864, 0xD8760273, 0x3EC86A64, 0x521F2B18, 0x177B200C, 0xBBE11757, 0x7A615D6C, 0x770988C0, 0xBAD946E2, 0x08E24FA0, 0x74E5AB31, 0x43DB5BFC, 0xE0FD108E, 0x4B82D120, 0xA9210801, 0x1A723C12, 0xA787E6D7, 0x88719A10, 0xBDBA5B26, 0x99C32718, 0x6AF4E23C, 0x1A946834, 0xB6150BDA, 0x2583E9CA, 0x2AD44CE8, 0xDBBBC2DB, 0x04DE8EF9, 0x2E8EFC14, 0x1FBECAA6, 0x287C5947, 0x4E6BC05D, 0x99B2964F, 0xA090C3A2, 0x233BA186, 0x515BE7ED, 0x1F612970, 0xCEE2D7AF, 0xB81BDD76, 0x2170481C, 0xD0069127, 0xD5B05AA9, 0x93B4EA98, 0x8D8FDDC1, 0x86FFB7DC, 0x90A6C08F, 0x4DF435C9, 0x34028492, 0x36C3FAB4, 0xD27C7026, 0xC1D4DCB2, 0x602646DE, 0xC9751E76, 0x3DBA37BD, 0xF8FF9406, 0xAD9E530E, 0xE5DB382F, 0x413001AE, 0xB06A53ED, 0x9027D831, 0x179727B0, 0x865A8918, 0xDA3EDBEB, 0xCF9B14ED, 0x44CE6CBA, 0xCED4BB1B, 0xDB7F1447, 0xE6CC254B, 0x33205151, 0x2BD7AF42, 0x6FB8F401, 0x378CD2BF, 0x5983CA01, 0xC64B92EC, 0xF032EA15, 0xD1721D03, 0xF482D7CE, 0x6E74FEF6, 0xD55E702F, 0x46980C82, 0xB5A84031, 0x900B1C9E, 0x59E7C97F, 0xBEC7E8F3, 0x23A97A7E, 0x36CC88BE, 0x0F1D45B7, 0xFF585AC5, 0x4BD407B2, 0x2B4154AA, 0xCC8F6D7E, 0xBF48E1D8, 0x14CC5ED2, 0x0F8037E0, 0xA79715EE, 0xF29BE328, 0x06A1D58B, 0xB7C5DA76, 0xF550AA3D, 0x8A1FBFF0, 0xEB19CCB1, 0xA313D55C, 0xDA56C9EC, 0x2EF29632, 0x387FE8D7, 0x6E3C0468, 0x043E8F66, 0x3F4860EE, 0x12BF2D5B, 0x0B7474D6, 0xE694F91E, 0x6DCC4024, 0xFFFFFFFF, 0xFFFFFFFF, ], generator: 2, }, "modp18": { prime: [ 0xFFFFFFFF, 0xFFFFFFFF, 0xC90FDAA2, 0x2168C234, 0xC4C6628B, 0x80DC1CD1, 0x29024E08, 0x8A67CC74, 0x020BBEA6, 0x3B139B22, 0x514A0879, 0x8E3404DD, 0xEF9519B3, 0xCD3A431B, 0x302B0A6D, 0xF25F1437, 0x4FE1356D, 0x6D51C245, 0xE485B576, 0x625E7EC6, 0xF44C42E9, 0xA637ED6B, 0x0BFF5CB6, 0xF406B7ED, 0xEE386BFB, 0x5A899FA5, 0xAE9F2411, 0x7C4B1FE6, 0x49286651, 0xECE45B3D, 0xC2007CB8, 0xA163BF05, 0x98DA4836, 0x1C55D39A, 0x69163FA8, 0xFD24CF5F, 0x83655D23, 0xDCA3AD96, 0x1C62F356, 0x208552BB, 0x9ED52907, 0x7096966D, 0x670C354E, 0x4ABC9804, 0xF1746C08, 0xCA18217C, 0x32905E46, 0x2E36CE3B, 0xE39E772C, 0x180E8603, 0x9B2783A2, 0xEC07A28F, 0xB5C55DF0, 0x6F4C52C9, 0xDE2BCBF6, 0x95581718, 0x3995497C, 0xEA956AE5, 0x15D22618, 0x98FA0510, 0x15728E5A, 0x8AAAC42D, 0xAD33170D, 0x04507A33, 0xA85521AB, 0xDF1CBA64, 0xECFB8504, 0x58DBEF0A, 0x8AEA7157, 0x5D060C7D, 0xB3970F85, 0xA6E1E4C7, 0xABF5AE8C, 0xDB0933D7, 0x1E8C94E0, 0x4A25619D, 0xCEE3D226, 0x1AD2EE6B, 0xF12FFA06, 0xD98A0864, 0xD8760273, 0x3EC86A64, 0x521F2B18, 0x177B200C, 0xBBE11757, 0x7A615D6C, 0x770988C0, 0xBAD946E2, 0x08E24FA0, 0x74E5AB31, 0x43DB5BFC, 0xE0FD108E, 0x4B82D120, 0xA9210801, 0x1A723C12, 0xA787E6D7, 0x88719A10, 0xBDBA5B26, 0x99C32718, 0x6AF4E23C, 0x1A946834, 0xB6150BDA, 0x2583E9CA, 0x2AD44CE8, 0xDBBBC2DB, 0x04DE8EF9, 0x2E8EFC14, 0x1FBECAA6, 0x287C5947, 0x4E6BC05D, 0x99B2964F, 0xA090C3A2, 0x233BA186, 0x515BE7ED, 0x1F612970, 0xCEE2D7AF, 0xB81BDD76, 0x2170481C, 0xD0069127, 0xD5B05AA9, 0x93B4EA98, 0x8D8FDDC1, 0x86FFB7DC, 0x90A6C08F, 0x4DF435C9, 0x34028492, 0x36C3FAB4, 0xD27C7026, 0xC1D4DCB2, 0x602646DE, 0xC9751E76, 0x3DBA37BD, 0xF8FF9406, 0xAD9E530E, 0xE5DB382F, 0x413001AE, 0xB06A53ED, 0x9027D831, 0x179727B0, 0x865A8918, 0xDA3EDBEB, 0xCF9B14ED, 0x44CE6CBA, 0xCED4BB1B, 0xDB7F1447, 0xE6CC254B, 0x33205151, 0x2BD7AF42, 0x6FB8F401, 0x378CD2BF, 0x5983CA01, 0xC64B92EC, 0xF032EA15, 0xD1721D03, 0xF482D7CE, 0x6E74FEF6, 0xD55E702F, 0x46980C82, 0xB5A84031, 0x900B1C9E, 0x59E7C97F, 0xBEC7E8F3, 0x23A97A7E, 0x36CC88BE, 0x0F1D45B7, 0xFF585AC5, 0x4BD407B2, 0x2B4154AA, 0xCC8F6D7E, 0xBF48E1D8, 0x14CC5ED2, 0x0F8037E0, 0xA79715EE, 0xF29BE328, 0x06A1D58B, 0xB7C5DA76, 0xF550AA3D, 0x8A1FBFF0, 0xEB19CCB1, 0xA313D55C, 0xDA56C9EC, 0x2EF29632, 0x387FE8D7, 0x6E3C0468, 0x043E8F66, 0x3F4860EE, 0x12BF2D5B, 0x0B7474D6, 0xE694F91E, 0x6DBE1159, 0x74A3926F, 0x12FEE5E4, 0x38777CB6, 0xA932DF8C, 0xD8BEC4D0, 0x73B931BA, 0x3BC832B6, 0x8D9DD300, 0x741FA7BF, 0x8AFC47ED, 0x2576F693, 0x6BA42466, 0x3AAB639C, 0x5AE4F568, 0x3423B474, 0x2BF1C978, 0x238F16CB, 0xE39D652D, 0xE3FDB8BE, 0xFC848AD9, 0x22222E04, 0xA4037C07, 0x13EB57A8, 0x1A23F0C7, 0x3473FC64, 0x6CEA306B, 0x4BCBC886, 0x2F8385DD, 0xFA9D4B7F, 0xA2C087E8, 0x79683303, 0xED5BDD3A, 0x062B3CF5, 0xB3A278A6, 0x6D2A13F8, 0x3F44F82D, 0xDF310EE0, 0x74AB6A36, 0x4597E899, 0xA0255DC1, 0x64F31CC5, 0x0846851D, 0xF9AB4819, 0x5DED7EA1, 0xB1D510BD, 0x7EE74D73, 0xFAF36BC3, 0x1ECFA268, 0x359046F4, 0xEB879F92, 0x4009438B, 0x481C6CD7, 0x889A002E, 0xD5EE382B, 0xC9190DA6, 0xFC026E47, 0x9558E447, 0x5677E9AA, 0x9E3050E2, 0x765694DF, 0xC81F56E8, 0x80B96E71, 0x60C980DD, 0x98EDD3DF, 0xFFFFFFFF, 0xFFFFFFFF, ], generator: 2, }, }; export class DiffieHellmanGroup { verifyError!: number; #diffiehellman: DiffieHellman; constructor(name: string) { if (!DH_GROUP_NAMES.includes(name)) { throw new ERR_CRYPTO_UNKNOWN_DH_GROUP(); } this.#diffiehellman = new DiffieHellman( Buffer.from(DH_GROUPS[name].prime), DH_GROUPS[name].generator, ); this.verifyError = 0; } computeSecret(otherPublicKey: ArrayBufferView): Buffer; computeSecret( otherPublicKey: string, inputEncoding: BinaryToTextEncoding, ): Buffer; computeSecret( otherPublicKey: ArrayBufferView, outputEncoding: BinaryToTextEncoding, ): string; computeSecret( otherPublicKey: string, inputEncoding: BinaryToTextEncoding, outputEncoding: BinaryToTextEncoding, ): string; computeSecret( otherPublicKey: ArrayBufferView | string, inputEncoding?: BinaryToTextEncoding, outputEncoding?: BinaryToTextEncoding, ): Buffer | string { return this.#diffiehellman.computeSecret( otherPublicKey, inputEncoding, outputEncoding, ); } generateKeys(): Buffer; generateKeys(encoding: BinaryToTextEncoding): string; generateKeys(encoding?: BinaryToTextEncoding): Buffer | string { return this.#diffiehellman.generateKeys(encoding); } getGenerator(): Buffer; getGenerator(encoding: BinaryToTextEncoding): string; getGenerator(encoding?: BinaryToTextEncoding): Buffer | string { return this.#diffiehellman.getGenerator(encoding); } getPrime(): Buffer; getPrime(encoding: BinaryToTextEncoding): string; getPrime(encoding?: BinaryToTextEncoding): Buffer | string { return this.#diffiehellman.getPrime(encoding); } getPrivateKey(): Buffer; getPrivateKey(encoding: BinaryToTextEncoding): string; getPrivateKey(encoding?: BinaryToTextEncoding): Buffer | string { return this.#diffiehellman.getPrivateKey(encoding); } getPublicKey(): Buffer; getPublicKey(encoding: BinaryToTextEncoding): string; getPublicKey(encoding?: BinaryToTextEncoding): Buffer | string { return this.#diffiehellman.getPublicKey(encoding); } } export class ECDH { #curve: EllipticCurve; // the selected curve #privbuf: Buffer; // the private key #pubbuf: Buffer; // the public key constructor(curve: string) { validateString(curve, "curve"); const c = ellipticCurves.find((x) => x.name == curve); if (c == undefined) { throw new Error("invalid curve"); } this.#curve = c; this.#pubbuf = Buffer.alloc(this.#curve.publicKeySize); this.#privbuf = Buffer.alloc(this.#curve.privateKeySize); } static convertKey( _key: BinaryLike, _curve: string, _inputEncoding?: BinaryToTextEncoding, _outputEncoding?: "latin1" | "hex" | "base64" | "base64url", _format?: "uncompressed" | "compressed" | "hybrid", ): Buffer | string { notImplemented("crypto.ECDH.prototype.convertKey"); } computeSecret(otherPublicKey: ArrayBufferView): Buffer; computeSecret( otherPublicKey: string, inputEncoding: BinaryToTextEncoding, ): Buffer; computeSecret( otherPublicKey: ArrayBufferView, outputEncoding: BinaryToTextEncoding, ): string; computeSecret( otherPublicKey: string, inputEncoding: BinaryToTextEncoding, outputEncoding: BinaryToTextEncoding, ): string; computeSecret( otherPublicKey: ArrayBufferView | string, _inputEncoding?: BinaryToTextEncoding, _outputEncoding?: BinaryToTextEncoding, ): Buffer | string { const secretBuf = Buffer.alloc(this.#curve.sharedSecretSize); ops.op_node_ecdh_compute_secret( this.#curve.name, this.#privbuf, otherPublicKey, secretBuf, ); return secretBuf; } generateKeys(): Buffer; generateKeys(encoding: BinaryToTextEncoding, format?: ECDHKeyFormat): string; generateKeys( encoding?: BinaryToTextEncoding, _format?: ECDHKeyFormat, ): Buffer | string { ops.op_node_ecdh_generate_keys( this.#curve.name, this.#pubbuf, this.#privbuf, ); if (encoding !== undefined) { return this.#pubbuf.toString(encoding); } return this.#pubbuf; } getPrivateKey(): Buffer; getPrivateKey(encoding: BinaryToTextEncoding): string; getPrivateKey(encoding?: BinaryToTextEncoding): Buffer | string { if (encoding !== undefined) { return this.#privbuf.toString(encoding); } return this.#privbuf; } getPublicKey(): Buffer; getPublicKey(encoding: BinaryToTextEncoding, format?: ECDHKeyFormat): string; getPublicKey( encoding?: BinaryToTextEncoding, _format?: ECDHKeyFormat, ): Buffer | string { if (encoding !== undefined) { return this.#pubbuf.toString(encoding); } return this.#pubbuf; } setPrivateKey(privateKey: ArrayBufferView): void; setPrivateKey(privateKey: string, encoding: BinaryToTextEncoding): void; setPrivateKey( privateKey: ArrayBufferView | string, encoding?: BinaryToTextEncoding, ): Buffer | string { this.#privbuf = privateKey; this.#pubbuf = Buffer.alloc(this.#curve.publicKeySize); ops.op_node_ecdh_compute_public_key( this.#curve.name, this.#privbuf, this.#pubbuf, ); if (encoding !== undefined) { return this.#pubbuf.toString(encoding); } return this.#pubbuf; } } export function diffieHellman(_options: { privateKey: KeyObject; publicKey: KeyObject; }): Buffer { notImplemented("crypto.diffieHellman"); } export default { DiffieHellman, DiffieHellmanGroup, ECDH, diffieHellman, };