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-rw-r--r--src/lib/hash/keccak/keccak.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/lib/hash/keccak/keccak.cpp b/src/lib/hash/keccak/keccak.cpp
index 1d2747ff2..f51b53e06 100644
--- a/src/lib/hash/keccak/keccak.cpp
+++ b/src/lib/hash/keccak/keccak.cpp
@@ -12,6 +12,11 @@
namespace Botan {
+std::unique_ptr<HashFunction> Keccak_1600::copy_state() const
+ {
+ return std::unique_ptr<HashFunction>(new Keccak_1600(*this));
+ }
+
Keccak_1600::Keccak_1600(size_t output_bits) :
m_output_bits(output_bits),
m_bitrate(1600 - 2*output_bits),