Se generalizó envio de correos a diferentes sistemas

src/crypto/crypto.util.ts

@@ -0,0 +1,35 @@
+import * as crypto from 'crypto';
+
+export function encrypt(text: string) {
+  const secret = process.env.KEY_SECRET;
+  if (!secret) throw new Error('Falta la variable de entorno KEY_SECRET');
+
+  const key = crypto.scryptSync(secret, 'salt', 32);
+  const iv = crypto.randomBytes(16);
+  const cipher = crypto.createCipheriv('aes-256-cbc', key, iv);
+
+  let encrypted = cipher.update(text, 'utf8', 'hex');
+  encrypted += cipher.final('hex');
+
+  return {
+    iv: iv.toString('hex'),
+    encryptedData: encrypted,
+  };
+}
+
+export function decrypt(encryptedData: string, ivHex: string) {
+  const secret = process.env.KEY_SECRET;
+  if (!process.env.KEY_SECRET) {
+    throw new Error('Falta la variable de entorno KEY_SECRET');
+  }
+  if (!secret) throw new Error('Falta la variable de entorno KEY_SECRET');
+
+  const key = crypto.scryptSync(secret, 'salt', 32);
+  const iv = Buffer.from(ivHex, 'hex');
+  const decipher = crypto.createDecipheriv('aes-256-cbc', key, iv);
+
+  let decrypted = decipher.update(encryptedData, 'hex', 'utf8');
+  decrypted += decipher.final('utf8');
+
+  return decrypted;
+}