Move swarmHash to its own file.

1 files changed, 0 insertions, 43 deletions

diff --git a/libdevcore/SHA3.cpp b/libdevcore/SHA3.cpp
index 96c7b764..3b12f39f 100644
--- a/libdevcore/SHA3.cpp
+++ b/libdevcore/SHA3.cpp
@@ -238,47 +238,4 @@ bool keccak256(bytesConstRef _input, bytesRef o_output)
 	return true;
 }
 
-bytes toLittleEndian(size_t _size)
-{
-	bytes encoded(8);
-	for (size_t i = 0; i < 8; ++i)
-		encoded[i] = (_size >> (8 * i)) & 0xff;
-	return encoded;
-}
-
-h256 swarmHashSimple(bytesConstRef _data, size_t _size)
-{
-	return keccak256(toLittleEndian(_size) + _data.toBytes());
-}
-
-h256 swarmHash(bytes const& _input)
-{
-	bytes data = _input;
-	size_t lastChunkSize = 0;
-	size_t level = 0;
-	do
-	{
-		bytes innerNodes;
-		size_t i = 0;
-		do
-		{
-			size_t bytes = std::min<size_t>(0x1000, data.size() - i);
-			size_t size = bytes << (7 * level);
-			if (i + 0x1000 >= data.size())
-			{
-				// last node
-				size = level == 0 ? bytes : ((bytes - 32) << (7 * level)) + lastChunkSize;
-				lastChunkSize = size;
-			}
-			innerNodes += swarmHashSimple(bytesConstRef(_input.data() + i, bytes), size).asBytes();
-			i += 0x1000;
-		}
-		while (i < data.size());
-		data = std::move(innerNodes);
-		level++;
-	}
-	while (data.size() > 32);
-	return h256(data);
-}
-
 }