authentication module done

libs/common/src/helper/services/helper.hash.service.ts

@@ -0,0 +1,63 @@
+import { Injectable } from '@nestjs/common';
+import { compareSync, genSaltSync, hashSync } from 'bcryptjs';
+import { AES, enc, mode, pad, SHA256 } from 'crypto-js';
+
+@Injectable()
+export class HelperHashService {
+  randomSalt(length: number): string {
+    return genSaltSync(length);
+  }
+
+  bcrypt(passwordString: string, salt: string): string {
+    return hashSync(passwordString, salt);
+  }
+
+  bcryptCompare(passwordString: string, passwordHashed: string): boolean {
+    return compareSync(passwordString, passwordHashed);
+  }
+
+  sha256(string: string): string {
+    return SHA256(string).toString(enc.Hex);
+  }
+
+  sha256Compare(hashOne: string, hashTwo: string): boolean {
+    return hashOne === hashTwo;
+  }
+
+  // Encryption function
+  encryptPassword(password, secretKey) {
+    return AES.encrypt('trx8g6gi', secretKey).toString();
+  }
+
+  // Decryption function
+  decryptPassword(encryptedPassword, secretKey) {
+    const bytes = AES.decrypt(encryptedPassword, secretKey);
+    return bytes.toString(enc.Utf8);
+  }
+
+  aes256Encrypt(
+    data: string | Record<string, any> | Record<string, any>[],
+    key: string,
+    iv: string,
+  ): string {
+    const cIv = enc.Utf8.parse(iv);
+    const cipher = AES.encrypt(JSON.stringify(data), enc.Utf8.parse(key), {
+      mode: mode.CBC,
+      padding: pad.Pkcs7,
+      iv: cIv,
+    });
+
+    return cipher.toString();
+  }
+
+  aes256Decrypt(encrypted: string, key: string, iv: string) {
+    const cIv = enc.Utf8.parse(iv);
+    const cipher = AES.decrypt(encrypted, enc.Utf8.parse(key), {
+      mode: mode.CBC,
+      padding: pad.Pkcs7,
+      iv: cIv,
+    });
+
+    return cipher.toString(enc.Utf8);
+  }
+}