From 52326a626ad8b0283f70d76f0e5b0c35c65f560b Mon Sep 17 00:00:00 2001
From: Brian Warner <warner@lothar.com>
Date: Tue, 22 May 2018 16:55:10 -0700
Subject: Cargo.toml: update to latest hkdf

---
 src/spake2.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/spake2.rs b/src/spake2.rs
index 7a32f5a..7f26958 100644
--- a/src/spake2.rs
+++ b/src/spake2.rs
@@ -145,7 +145,7 @@ fn ed25519_hash_to_scalar(s: &[u8]) -> c2_Scalar {
     //  i = int(h, 16)
     //  i % q
 
-    let okm = Hkdf::<Sha256>::extract(b"", s).expand(b"SPAKE2 pw", 32 + 16);
+    let okm = Hkdf::<Sha256>::extract(Some(b""), s).expand(b"SPAKE2 pw", 32 + 16);
     //println!("expanded:   {}{}", "................................", okm.iter().to_hex()); // ok
 
     let mut reducible = [0u8; 64]; // little-endian
-- 
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