diff --git a/.env.example b/.env.example
index 49022cd..1289164 100644
--- a/.env.example
+++ b/.env.example
@@ -1,2 +1,4 @@
 APP_URL=http://localhost:4000
 ENTITY_ID=https://saml.example.com/entityid
+PUBLIC_KEY= # Base64 encoded value of public key `cat public.crt | base64`
+PRIVATE_KEY=# Base64 encoded value of private key `cat key.pem | base64`
\ No newline at end of file
diff --git a/utils/certificate.ts b/utils/certificate.ts
index 25e53e8..8f0135c 100644
--- a/utils/certificate.ts
+++ b/utils/certificate.ts
@@ -1,13 +1,11 @@
-import { promises as fs } from 'fs';
 import { asn1, pki, util } from 'node-forge';
-import path from 'path';
 
-const fetchPublicKey = async (): Promise<string> => {
-  return await fs.readFile(path.join('data', 'public.crt'), 'ascii');
+const fetchPublicKey = (): string => {
+  return Buffer.from(process.env.PUBLIC_KEY!, 'base64').toString('ascii');
 };
 
-const fetchPrivateKey = async (): Promise<string> => {
-  return await fs.readFile(path.join('data', 'key.pem'), 'ascii');
+const fetchPrivateKey = (): string => {
+  return Buffer.from(process.env.PRIVATE_KEY!, 'base64').toString('ascii');
 };
 
 function getPublicKeyPemFromCertificate(x509Certificate: string) {