So I found some sample code on codeproject (Sample 3) relating the GCM functionality of crypto++
http://www.codeproject.com/KB/security/EncryptThenAuthenticate.aspx?display=Print I've got the crypto++ library compiled and I wrote a makefile for that sample that links against the crypto++ library: CC = g++ CCOPTS = -I../../cryptopp LDOPTS = -L../../cryptopp -lcryptopp all: example_3 stdafx.o: stdafx.cpp $(CC) $(CCOPTS) -c stdafx.cpp -o stdafx.o example_3: Sample.cpp stdafx.o stdafx.h $(CC) $(CCOPTS) $(LDOPTS) Sample.cpp -o example_3 stdafx.o clean: rm -rf example_3 *.o But when I go to do the final linking, I get this: Undefined symbols: "CryptoPP::Rijndael::Enc::AdvancedProcessBlocks(unsigned char const*, unsigned char const*, unsigned char*, unsigned long, unsigned int) const", referenced from: vtable for CryptoPP::BlockCipherFinal<(CryptoPP::CipherDir)0, CryptoPP::Rijndael::Enc>in ccz7OlpQ.o vtable for CryptoPP::ClonableImpl<CryptoPP::BlockCipherFinal<(CryptoPP::CipherDir)0, CryptoPP::Rijndael::Enc>, CryptoPP::Rijndael::Enc>in ccz7OlpQ.o "non-virtual thunk to CryptoPP::Rijndael::Enc::AdvancedProcessBlocks(unsigned char const*, unsigned char const*, unsigned char*, unsigned long, unsigned int) const", referenced from: vtable for CryptoPP::BlockCipherFinal<(CryptoPP::CipherDir)0, CryptoPP::Rijndael::Enc>in ccz7OlpQ.o vtable for CryptoPP::ClonableImpl<CryptoPP::BlockCipherFinal<(CryptoPP::CipherDir)0, CryptoPP::Rijndael::Enc>, CryptoPP::Rijndael::Enc>in ccz7OlpQ.o ld: symbol(s) not found Checking in rijndael.cpp I can see the function defintiion, but it's wrapper in an ifdef : #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE) Rijndae::Enc::AdvancedProcessBlocks #endif Which would seem to indicate those flags are false and undefined respectively. But the GCM encryptor/decryptor is still trying to use this function. Is this a bug or have I somehow mis-compiled (I just ran make -f GNUmakefile)? Here's my uname and gcc -v info uname: Darwin localhost 9.7.0 Darwin Kernel Version 9.7.0: Tue Mar 31 22:52:17 PDT 2009; root:xnu-1228.12.14~1/RELEASE_I386 i386 i386 gcc -v Target: i686-apple-darwin9 Configured with: /var/tmp/gcc/gcc-5465~16/src/configure --disable-checking -enable-werror --prefix=/usr --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ --program-transform-name=/^[cg][^.-]*$/s/$/-4.0/ --with-gxx-include-dir=/include/c++/4.0.0 --with-slibdir=/usr/lib --build=i686-apple-darwin9 --with-arch=apple --with-tune=generic --host=i686-apple-darwin9 --target=i686-apple-darwin9 Thread model: posix gcc version 4.0.1 (Apple Inc. build 5465) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "Crypto++ Users" Google Group. To unsubscribe, send an email to [email protected]. More information about Crypto++ and this group is available at http://www.cryptopp.com. -~----------~----~----~----~------~----~------~--~---
