From a0dd7f90ba821e9984acb8625ac0b132c94ff898 Mon Sep 17 00:00:00 2001
From: David Michael <david@zeet.co>
Date: Sun, 18 Jun 2017 19:12:42 +0100
Subject: [PATCH] Simplified CryptKdfKeygen

---
 cryptokdf/crypto_kdf.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/cryptokdf/crypto_kdf.go b/cryptokdf/crypto_kdf.go
index bf9ac31..660150c 100644
--- a/cryptokdf/crypto_kdf.go
+++ b/cryptokdf/crypto_kdf.go
@@ -22,9 +22,10 @@ func CryptoKdfBytesMax() int {
 	return int(C.crypto_kdf_bytes_max())
 }
 
-func CryptoKdfKeygen(k []byte) {
-	support.CheckSize(k, CryptoKdfKeybytes(), "keybytes")
+func CryptoKdfKeygen() []byte {
+	k := make([]byte, CryptoKdfKeybytes())
 	C.crypto_kdf_keygen((*C.uchar)(&k[0]))
+	return k
 }
 
 func CryptoKdfDeriveFromKey(l int, i uint64, c string, k []byte) ([]byte, int) {