update node.d.ts (publicEncrypt & privateDecrypt)

added rsa function to encrypt and decrypt

node/node.d.ts

@@ -1670,6 +1670,17 @@ 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" {