Add Power8 SHA256 and SHA512 support (GH #513)

1 files changed, 14 insertions, 0 deletions

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);

 }