From aecc77a0af80fdcebc71570a5e9a46c1b645aa7f Mon Sep 17 00:00:00 2001
From: Jack Lloyd <jack@randombit.net>
Date: Sun, 8 Dec 2019 12:03:52 -0500
Subject: Minor optimization for Blake2b::final_result

Avoids some needless memsets
---
 src/lib/hash/blake2/blake2b.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/lib/hash/blake2/blake2b.cpp b/src/lib/hash/blake2/blake2b.cpp
index 9617fb4fb..0280d0c8b 100644
--- a/src/lib/hash/blake2/blake2b.cpp
+++ b/src/lib/hash/blake2/blake2b.cpp
@@ -51,6 +51,7 @@ void BLAKE2b::state_init()
    m_H[0] ^= 0x01010000 ^ static_cast<uint8_t>(output_length());
    m_T[0] = m_T[1] = 0;
    m_F[0] = m_F[1] = 0;
+   m_bufpos = 0;
    }
 
 namespace {
@@ -177,7 +178,7 @@ void BLAKE2b::final_result(uint8_t output[])
    m_F[0] = 0xFFFFFFFFFFFFFFFF;
    compress(m_buffer.data(), 1, m_bufpos);
    copy_out_vec_le(output, output_length(), m_H);
-   clear();
+   state_init();
    }
 
 std::string BLAKE2b::name() const
-- 
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