2 files changed, 26 insertions, 38 deletions
diff --git a/packages/types/src/index.ts b/packages/types/src/index.ts
index e5a0f41a9..390d2f50c 100644
--- a/packages/types/src/index.ts
+++ b/packages/types/src/index.ts
@@ -48,6 +48,12 @@ export interface ECSignature {
     s: string;
 }
 
+export interface ECSignatureBuffer {
+    v: number;
+    r: Buffer;
+    s: Buffer;
+}
+
 /**
  * Validator signature components
  */
diff --git a/packages/typescript-typings/types/eth-lightwallet/index.d.ts b/packages/typescript-typings/types/eth-lightwallet/index.d.ts
index a226d8049..76f910d9c 100644
--- a/packages/typescript-typings/types/eth-lightwallet/index.d.ts
+++ b/packages/typescript-typings/types/eth-lightwallet/index.d.ts
@@ -1,42 +1,24 @@
 // eth-lightwallet declarations
 declare module 'eth-lightwallet' {
-    import { ECSignatureBuffer } from '@0xproject/types';
+  import { ECSignatureBuffer } from "@0xproject/types";
 
-    export class signing {
-        public static signTx(
-            keystore: keystore,
-            pwDerivedKey: Uint8Array,
-            rawTx: string,
-            signingAddress: string,
-        ): string;
-        public static signMsg(
-            keystore: keystore,
-            pwDerivedKey: Uint8Array,
-            rawMsg: string,
-            signingAddress: string,
-        ): ECSignatureBuffer;
-        public static signMsgHash(
-            keystore: keystore,
-            pwDerivedKey: Uint8Array,
-            msgHash: string,
-            signingAddress: string,
-        ): ECSignatureBuffer;
-        public static concatSig(signature: any): string;
-    }
-    export class keystore {
-        public static createVault(options: any, callback?: (error: Error, keystore: keystore) => void): keystore;
-        public static generateRandomSeed(): string;
-        public static isSeedValid(seed: string): boolean;
-        public static deserialize(keystore: string): keystore;
-        public serialize(): string;
-        public keyFromPassword(
-            password: string,
-            callback?: (error: Error, pwDerivedKey: Uint8Array) => void,
-        ): Uint8Array;
-        public isDerivedKeyCorrect(pwDerivedKey: Uint8Array): boolean;
-        public generateNewAddress(pwDerivedKey: Uint8Array, numberOfAddresses: number): void;
-        public getSeed(pwDerivedKey: Uint8Array): string;
-        public exportPrivateKey(address: string, pwDerivedKey: Uint8Array): string;
-        public getAddresses(): string[];
-    }
+  export class signing {
+    public static signTx(keystore: keystore, pwDerivedKey: Uint8Array, rawTx: string, signingAddress: string): string;
+    public static signMsg(keystore: keystore, pwDerivedKey: Uint8Array, rawMsg: string, signingAddress: string): ECSignatureBuffer;
+    public static signMsgHash(keystore: keystore, pwDerivedKey: Uint8Array, msgHash: string, signingAddress: string): ECSignatureBuffer;
+    public static concatSig(signature: any): string;
+  }
+  export class keystore {
+      public static createVault(options: any, callback?: (error: Error, keystore: keystore) => void): keystore;
+      public static generateRandomSeed(): string;
+      public static isSeedValid(seed: string): boolean;
+      public static deserialize(keystore: string): keystore;
+      public serialize(): string;
+      public keyFromPassword(password: string, callback?: (error: Error, pwDerivedKey: Uint8Array) => void): Uint8Array;
+      public isDerivedKeyCorrect(pwDerivedKey: Uint8Array): boolean;
+      public generateNewAddress(pwDerivedKey: Uint8Array, numberOfAddresses: number): void;
+      public getSeed(pwDerivedKey: Uint8Array): string;
+      public exportPrivateKey(address: string, pwDerivedKey: Uint8Array): string;
+      public getAddresses(): string[];
+  }
 }