diff --git a/node/node.d.ts b/node/node.d.ts
index 7179464d1..39d4908e8 100644
--- a/node/node.d.ts
+++ b/node/node.d.ts
@@ -1759,6 +1759,17 @@ declare module "crypto" {
     export function randomBytes(size: number, callback: (err: Error, buf: Buffer) =>void ): void;
     export function pseudoRandomBytes(size: number): Buffer;
     export function pseudoRandomBytes(size: number, callback: (err: Error, buf: Buffer) =>void ): void;
+    export interface RsaPublicKey {
+        key: string;
+        padding?: any;
+    }
+    export interface RsaPrivateKey {
+        key: string;
+        passphrase?: string,
+        padding?: any;
+    }
+    export function publicEncrypt(public_key: string|RsaPublicKey, buffer: Buffer): Buffer
+    export function privateDecrypt(private_key: string|RsaPrivateKey, buffer: Buffer): Buffer
 }
 
 declare module "stream" {