From ced7cff64f87ae4fec781e00e4e111f6c188dea2 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Fri, 22 Sep 2017 09:39:36 -0400
Subject: Add Power8 SHA256 and SHA512 support (GH #513)

---
 sha.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'sha.cpp')

diff --git a/sha.cpp b/sha.cpp
index 04dfb4d9..d1c8d454 100644
--- a/sha.cpp
+++ b/sha.cpp
@@ -783,6 +783,13 @@ size_t SHA224::HashMultipleBlocks(const word32 *input, size_t length)
         return length & (SHA256::BLOCKSIZE - 1);
     }
 #endif
+#if CRYPTOPP_POWER8_SHA_AVAILABLE
+    if (HasSHA256())
+    {
+        SHA256_HashMultipleBlocks_POWER8(m_state, input, length, BIG_ENDIAN_ORDER);
+        return length & (SHA256::BLOCKSIZE - 1);
+    }
+#endif
 
     const bool noReverse = NativeByteOrderIs(this->GetByteOrder());
     word32 *dataBuf = this->DataBuf();
@@ -1164,6 +1171,13 @@ void SHA512::Transform(word64 *state, const word64 *data)
         return;
     }
 #endif
+#if CRYPTOPP_POWER8_SHA_AVAILABLE
+    if (HasSHA512())
+    {
+        SHA512_HashMultipleBlocks_POWER8(state, data, SHA512::BLOCKSIZE, BIG_ENDIAN_ORDER);
+        return;
+    }
+#endif
 
     SHA512_HashBlock_CXX(state, data);
 }
-- 
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