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rely on native api
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cupcakearmy
parent
a015d4f46a
commit
4f17d72ea7
164
src/AES.ts
164
src/AES.ts
@ -1,164 +0,0 @@
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import forge from 'node-forge'
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export enum Ciphers {
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AES_256_GCM,
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AES_192_GCM,
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AES_128_GCM,
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AES_256_CTR,
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AES_192_CTR,
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AES_128_CTR,
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AES_256_CBC,
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AES_192_CBC,
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AES_128_CBC,
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}
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type CipherConfig = {
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alg: forge.cipher.Algorithm,
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saltSize: number
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keySize: number
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tagSize: number
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it: number
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}
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type EncryptedItem = {
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alg: forge.cipher.Algorithm,
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data: string,
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keySize: number,
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iv: string,
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it: number
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salt: string,
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tag: string,
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tagSize: number,
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}
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export default class AES {
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static Ciphers = Ciphers
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static encrypt(data: string, key: string, type: Ciphers = Ciphers.AES_256_GCM): string {
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const { alg, it, keySize, saltSize, tagSize } = AES.getCipherConfig(type)
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const salt = forge.random.getBytesSync(saltSize)
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const iv = forge.random.getBytesSync(keySize)
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const cipher = forge.cipher.createCipher(
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alg,
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forge.pkcs5.pbkdf2(key, salt, it, keySize),
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)
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cipher.start({
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iv,
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tagLength: tagSize,
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})
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cipher.update(forge.util.createBuffer(data))
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cipher.finish()
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const encrypted: EncryptedItem = {
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alg,
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data: forge.util.hexToBytes(cipher.output.toHex()),
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keySize,
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iv,
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it,
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salt,
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tag: forge.util.hexToBytes(cipher.mode.tag.toHex()),
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tagSize,
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}
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return Buffer.from(JSON.stringify(encrypted)).toString('base64')
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}
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static decrypt(e: string, key: string): string {
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const { alg, data, keySize, iv, it, salt, tag, tagSize }: EncryptedItem = JSON.parse(Buffer.from(e, 'base64').toString())
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const cipher = forge.cipher.createCipher(
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alg,
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forge.pkcs5.pbkdf2(key, salt, it, keySize),
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)
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cipher.start({
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iv,
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tag: new forge.util.ByteStringBuffer(tag),
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tagLength: tagSize,
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})
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cipher.update(new forge.util.ByteStringBuffer(data))
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cipher.finish()
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return cipher.output.toString()
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}
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private static getCipherConfig = (type: Ciphers): CipherConfig => {
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switch (type) {
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case Ciphers.AES_128_GCM:
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return {
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alg: 'AES-GCM',
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saltSize: 128,
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keySize: 16,
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tagSize: 128,
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it: 2 ** 12,
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}
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case Ciphers.AES_192_GCM:
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return {
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alg: 'AES-GCM',
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saltSize: 128,
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keySize: 24,
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tagSize: 128,
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it: 2 ** 12,
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}
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case Ciphers.AES_256_GCM:
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return {
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alg: 'AES-GCM',
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saltSize: 128,
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keySize: 32,
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tagSize: 128,
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it: 2 ** 12,
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}
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case Ciphers.AES_128_CBC:
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return {
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alg: 'AES-CBC',
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saltSize: 128,
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keySize: 16,
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tagSize: 128,
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it: 2 ** 12,
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}
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case Ciphers.AES_192_CBC:
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return {
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alg: 'AES-CBC',
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saltSize: 128,
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keySize: 24,
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tagSize: 128,
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it: 2 ** 12,
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}
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case Ciphers.AES_256_CBC:
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return {
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alg: 'AES-CBC',
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saltSize: 128,
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keySize: 32,
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tagSize: 128,
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it: 2 ** 12,
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}
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case Ciphers.AES_128_CTR:
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return {
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alg: 'AES-CTR',
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saltSize: 128,
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keySize: 16,
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tagSize: 128,
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it: 2 ** 12,
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}
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case Ciphers.AES_192_CTR:
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return {
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alg: 'AES-CTR',
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saltSize: 128,
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keySize: 24,
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tagSize: 128,
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it: 2 ** 12,
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}
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case Ciphers.AES_256_CTR:
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return {
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alg: 'AES-CTR',
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saltSize: 128,
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keySize: 32,
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tagSize: 128,
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it: 2 ** 12,
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}
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}
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}
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}
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39
src/RSA.ts
39
src/RSA.ts
@ -1,39 +0,0 @@
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import forge from 'node-forge'
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import { Base64 } from './Util'
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type PrivateKey = string
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type PublicKey = string
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export type KeyPair = {
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pub: PublicKey
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prv: PrivateKey
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}
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export default class RSA {
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static gen = (size: number = 2 ** 12): Promise<KeyPair> => new Promise<KeyPair>((resolve, reject) => {
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forge.pki.rsa.generateKeyPair({ bits: size }, function (err, keypair) {
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if (err) reject()
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else resolve({
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pub: forge.pki.publicKeyToPem(keypair.publicKey),
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prv: forge.pki.privateKeyToPem(keypair.privateKey),
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})
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})
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})
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static encrypt(data: string, key: PublicKey): string {
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const obj = forge.pki.publicKeyFromPem(key)
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if (obj instanceof ArrayBuffer) throw new Error()
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return Base64.encode(obj.encrypt(data))
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}
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static decrypt(data: string, key: PrivateKey): string {
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const obj = forge.pki.privateKeyFromPem(key)
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if (obj instanceof ArrayBuffer) throw new Error()
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return obj.decrypt(Base64.decode(data))
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}
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}
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157
src/Symmetric.ts
Normal file
157
src/Symmetric.ts
Normal file
@ -0,0 +1,157 @@
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import {
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Cipher,
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CipherCCM,
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CipherGCM,
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createCipheriv,
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createDecipheriv,
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Decipher,
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DecipherCCM,
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DecipherGCM,
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randomBytes,
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scryptSync,
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} from 'crypto'
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import { TransformOptions } from 'stream'
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import { Base64 } from './Util'
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export enum Ciphers {
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ChaCha20,
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ChaCha20_Poly1305,
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AES_256_GCM,
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AES_192_GCM,
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AES_128_GCM,
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AES_256_CTR,
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AES_192_CTR,
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AES_128_CTR,
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}
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type CipherConfig = {
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alg: string,
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keySize: number,
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ivSize: number
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mac?: number
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}
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type EncryptedItem = {
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alg: string,
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data: string,
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iv: string,
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salt: string
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keySize: number,
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tag?: string,
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tagSize?: number
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}
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export default class Symmetric {
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static Ciphers = Ciphers
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static Encoding: BufferEncoding = 'base64'
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static encrypt(data: string, pass: string, type: Ciphers = Ciphers.AES_256_CTR): string {
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const { alg, ivSize, mac, keySize } = Symmetric.getCipherConfig(type)
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const iv = randomBytes(ivSize)
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const salt = randomBytes(keySize)
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const key = scryptSync(pass, salt, keySize)
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// @ts-ignore
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const options: TransformOptions = mac ? { authTagLength: mac } : undefined
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const cipher: CipherGCM | CipherCCM | Cipher = createCipheriv(alg, key, iv, options)
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let content: Buffer = Buffer.concat([
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cipher.update(data),
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cipher.final(),
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])
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let tag: string | undefined = undefined
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// @ts-ignore
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if (mac) tag = cipher.getAuthTag().toString(Symmetric.Encoding)
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const encrypted: EncryptedItem = {
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alg,
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data: content.toString(Symmetric.Encoding),
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tag,
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iv: iv.toString(Symmetric.Encoding),
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salt: salt.toString(Symmetric.Encoding),
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keySize,
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tagSize: mac,
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}
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return Base64.encode(JSON.stringify(encrypted))
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}
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static decrypt(e: string, pass: string): string {
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const { alg, data, iv, tag, salt, keySize, tagSize }: EncryptedItem = JSON.parse(Base64.decode(e))
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const key = scryptSync(pass, Buffer.from(salt, Symmetric.Encoding), keySize)
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// @ts-ignore
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const options: TransformOptions = tag ? { authTagLength: tagSize } : undefined
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const decipher: DecipherGCM | DecipherCCM | Decipher = createDecipheriv(alg, key, Buffer.from(iv, Symmetric.Encoding), options)
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// @ts-ignore
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if (tag) decipher.setAuthTag(Buffer.from(tag, Symmetric.Encoding))
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const decrypted: Buffer = Buffer.concat([
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decipher.update(Buffer.from(data, Symmetric.Encoding)),
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decipher.final(),
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])
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return decrypted.toString()
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}
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private static getCipherConfig = (type: Ciphers): CipherConfig => {
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switch (type) {
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case Ciphers.AES_128_GCM:
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return {
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alg: 'aes-128-gcm',
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ivSize: 16,
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keySize: 16,
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mac: 16,
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}
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case Ciphers.AES_192_GCM:
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return {
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alg: 'aes-192-gcm',
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ivSize: 16,
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keySize: 24,
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mac: 16,
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}
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case Ciphers.AES_256_GCM:
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return {
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alg: 'aes-256-gcm',
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ivSize: 16,
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keySize: 32,
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mac: 16,
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}
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case Ciphers.AES_128_CTR:
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return {
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alg: 'aes-128-ctr',
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ivSize: 16,
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keySize: 16,
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}
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case Ciphers.AES_192_CTR:
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return {
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alg: 'aes-192-ctr',
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ivSize: 16,
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keySize: 24,
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}
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case Ciphers.AES_256_CTR:
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return {
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alg: 'aes-256-ctr',
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ivSize: 16,
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keySize: 32,
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}
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case Ciphers.ChaCha20:
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return {
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alg: 'chacha20',
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ivSize: 16,
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keySize: 32,
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}
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case Ciphers.ChaCha20_Poly1305:
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return {
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alg: 'chacha20-poly1305',
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ivSize: 16,
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keySize: 32,
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mac: 8,
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}
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}
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}
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}
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12
src/index.ts
12
src/index.ts
@ -1,12 +1,12 @@
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import AES from './AES'
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import RSA from './RSA'
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import Symmetric from './Symmetric'
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export default {
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const exp = {
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RSA,
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AES,
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Symmetric,
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}
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export {
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AES,
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RSA,
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module.exports = {
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...exp,
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default: exp,
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}
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