Promisify BIP-44 serialization methods.

diff --git a/src/lib/bip32-key-derivation.ts b/src/lib/bip32-key-derivation.ts
index 8580ad0d2583adbec0dd3ac3f34cf010f7ddf242..a622b993a1335b257c62bf84276ccb8ef376f4c4 100644 (file)
--- a/src/lib/bip32-key-derivation.ts
+++ b/src/lib/bip32-key-derivation.ts
@@ -39,14 +39,14 @@ async function slip10 (curve: string, S: string): Promise<ExtendedKey> {
 \r
 async function CKDpriv ({ privateKey, chainCode }: ExtendedKey, index: number): Promise<ExtendedKey> {\r
        const key = hex.toBytes(chainCode)\r
-       const data = hex.toBytes(`00${bytes.toHex(ser256(privateKey))}${bytes.toHex(ser32(index))}`)\r
+       const data = hex.toBytes(`00${bytes.toHex(await ser256(privateKey))}${bytes.toHex(await ser32(index))}`)\r
        const I = await hmac(key, data)\r
        const IL = I.slice(0, I.length / 2)\r
        const IR = I.slice(I.length / 2)\r
        return ({ privateKey: IL, chainCode: IR })\r
 }\r
 \r
-function ser32 (integer: number): Uint8Array {\r
+async function ser32 (integer: number): Promise<Uint8Array> {\r
        const bits = integer.toString(2)\r
        if (bits.length > 32) {\r
                throw new RangeError(`Expected 32-bit integer, received ${bits.length} bits: ${bits}`)\r
@@ -57,7 +57,7 @@ function ser32 (integer: number): Uint8Array {
        return result\r
 }\r
 \r
-function ser256 (integer: string): Uint8Array {\r
+async function ser256 (integer: string): Promise<Uint8Array> {\r
        const bits = hex.toBin(integer)\r
        if (bits.length > 256) {\r
                throw new RangeError(`Expected 256-bit integer, received ${bits.length} bits: ${bits}`)\r