> here the compile error:
> g++ -g -O2 -DNDEBUG -I/usr/include/cryptopp cryptopp-authenc.cpp -o test
> -lcryptopp -lpthread
> In file included from cryptopp-authenc.cpp:20:0:
> /usr/include/cryptopp/secblock.h: In instantiation of
> ‘CryptoPP::SecBlock<T, A> CryptoPP::SecBlock<T, A>::operator+(const
> CryptoPP::SecBlock<T, A>&) [with T = unsigned char; A =
> CryptoPP::AllocatorWithCleanup<unsigned char>]’:
> cryptopp-authenc.cpp:156:114: required from here
> /usr/include/cryptopp/secblock.h:593:6: error: cannot convert
> ‘CryptoPP::SecBlock<T, A>::size<unsigned char,
> CryptoPP::AllocatorWithCleanup<unsigned char> >’ from type
> ‘CryptoPP::SecBlock<unsigned char>::size_type (CryptoPP::SecBlock<unsigned
> char>::)() const {aka long unsigned int (CryptoPP::SecBlock<unsigned
> char>::)() const}’ to type ‘bool’
> if(!t.size) return SecBlock(*this);
> ^
> /usr/include/cryptopp/secblock.h:593:6: error: in argument to unary !
>
Yeah, that's a typo we discovered after releasing 5.6.3. We missed it at
the time because we did not have a test case for it.
You can change it to the following (from
https://github.com/weidai11/cryptopp/blob/master/secblock.h#L598):
assert((!m_ptr && !m_size) || (m_ptr && m_size));
assert((!t.m_ptr && !t.m_size) || (t.m_ptr && t.m_size));
if(!t.m_size) return SecBlock(*this);
We are getting ready for a 5.6.4 release to pick-up straggler bugs like
this (there's been a handful of them), and to clear a potential CVE
(https://github.com/weidai11/cryptopp/issues/146). I'm waiting to hear back
if it should be submitted for a CVE assignment.
You can also work from Master by using Wei Dai's github. Master is stable,
and not experimental:
git clone https://github.com/weidai11/cryptopp.git
cd cryptopp
make static dynamic test
sudo make install
Then, use the Crypto++ library at /usr/local instead of /usr.
Jeff
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