gradido/backend/src/password/EncryptorUtils.ts
2023-03-12 02:19:10 +01:00

68 lines
2.5 KiB
TypeScript

/* eslint-disable @typescript-eslint/no-unsafe-call */
/* eslint-disable @typescript-eslint/no-unsafe-member-access */
/* eslint-disable @typescript-eslint/no-unsafe-assignment */
import { User } from '@entity/User'
import CONFIG from '@/config'
import LogError from '@/server/LogError'
import { backendLogger as logger } from '@/server/logger'
import { PasswordEncryptionType } from '@enum/PasswordEncryptionType'
// eslint-disable-next-line @typescript-eslint/no-var-requires, import/no-commonjs
const sodium = require('sodium-native')
// We will reuse this for changePassword
export const isValidPassword = (password: string): boolean => {
return !!password.match(/^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[^a-zA-Z0-9 \\t\\n\\r]).{8,}$/)
}
export const SecretKeyCryptographyCreateKey = (salt: string, password: string): Buffer[] => {
logger.trace('SecretKeyCryptographyCreateKey...')
const configLoginAppSecret = Buffer.from(CONFIG.LOGIN_APP_SECRET, 'hex')
const configLoginServerKey = Buffer.from(CONFIG.LOGIN_SERVER_KEY, 'hex')
if (configLoginServerKey.length !== sodium.crypto_shorthash_KEYBYTES) {
throw new LogError(
'ServerKey has an invalid size',
configLoginServerKey.length,
sodium.crypto_shorthash_KEYBYTES,
)
}
const state = Buffer.alloc(sodium.crypto_hash_sha512_STATEBYTES)
sodium.crypto_hash_sha512_init(state)
sodium.crypto_hash_sha512_update(state, Buffer.from(salt))
sodium.crypto_hash_sha512_update(state, configLoginAppSecret)
const hash = Buffer.alloc(sodium.crypto_hash_sha512_BYTES)
sodium.crypto_hash_sha512_final(state, hash)
const encryptionKey = Buffer.alloc(sodium.crypto_box_SEEDBYTES)
const opsLimit = 10
const memLimit = 33554432
const algo = 2
sodium.crypto_pwhash(
encryptionKey,
Buffer.from(password),
hash.slice(0, sodium.crypto_pwhash_SALTBYTES),
opsLimit,
memLimit,
algo,
)
const encryptionKeyHash = Buffer.alloc(sodium.crypto_shorthash_BYTES)
sodium.crypto_shorthash(encryptionKeyHash, encryptionKey, configLoginServerKey)
return [encryptionKeyHash, encryptionKey]
}
export const getUserCryptographicSalt = (dbUser: User): string => {
switch (dbUser.passwordEncryptionType) {
case PasswordEncryptionType.NO_PASSWORD:
throw new LogError('User has no password set', dbUser.id)
case PasswordEncryptionType.EMAIL:
return dbUser.emailContact.email
case PasswordEncryptionType.GRADIDO_ID:
return dbUser.gradidoID
default:
throw new LogError('Unknown password encryption type', dbUser.passwordEncryptionType)
}
}