diff --git a/node/node.d.ts b/node/node.d.ts
index 42398496e..34862f4b7 100644
--- a/node/node.d.ts
+++ b/node/node.d.ts
@@ -1031,9 +1031,9 @@ declare module "crypto" {
         update(data: any, input_encoding?: string, output_encoding?: string): string;
         final(output_encoding?: string): string;
         setAutoPadding(auto_padding: boolean): void;
-        createDecipher(algorithm: string, password: any): Decipher;
-        createDecipheriv(algorithm: string, key: any, iv: any): Decipher;
     }
+    export function createDecipher(algorithm: string, password: any): Decipher;
+    export function createDecipheriv(algorithm: string, key: any, iv: any): Decipher;
     interface Decipher {
         update(data: any, input_encoding?: string, output_encoding?: string): void;
         final(output_encoding?: string): string;
@@ -1063,6 +1063,7 @@ declare module "crypto" {
     }
     export function getDiffieHellman(group_name: string): DiffieHellman;
     export function pbkdf2(password: string, salt: string, iterations: number, keylen: number, callback: (err: Error, derivedKey: string) => any): void;
+    export function pbkdf2Sync(password: string, salt: string, iterations: number, keylen: number) : NodeBuffer;
     export function randomBytes(size: number): NodeBuffer;
     export function randomBytes(size: number, callback: (err: Error, buf: NodeBuffer) =>void ): void;
     export function pseudoRandomBytes(size: number): NodeBuffer;