The leaks still appear to be present with current master code. On Monday, June 27, 2016 at 8:29:27 PM UTC+12, Gavin Lambert wrote: > > Hi, I'm using Crypto++ for the first time, to do some decryption and > verification. I've downloaded the 5.6.3 release zip. > > I've written some test code using the RSA example on the wiki as a basis, > but I'm getting memory leaks reported; unfortunately the leak detector I'm > using only reports the location of the "new", not a full call stack, and > due to Crypto++'s code structure this doesn't help me find the root cause. > > The code is fairly straightfoward: > > using namespace CryptoPP; > > RSA::PrivateKey privateKey; > privateKey.Load(...); // verified this doesn't leak; it's a 3072-bit key > std::string ciphertext(raw_ciphertext, sizeof(raw_ciphertext)); // 384 > bytes > > RSAES_OAEP_SHA_Decryptor decryptor(privateKey); > AutoSeededRandomPool rng; > SecByteBlock decrypted(decryptor.MaxPlaintextLength(ciphertext.size()); > auto result = decryptor.Decrypt(rng, (const uint8_t*)ciphertext.data(), > ciphertext.size(), decrypted); > assert(result.isValidCoding); > decrypted.resize(result.messageLength); > assert(0x20 == result.messageLength); > > The resulting decrypted data is correct. but after the function containing > the above exits (so all objects should have been destroyed) I get the > following leaks reported: > > Memory leak(s) found. > Alloc num (658157) Leak size: 4 Allocated at: misc.h and line: 202. Type: > "new" > Memory: <01A698E8> Content: > 0000: 28 63 a6 01 |(c..| > Alloc num (658163) Leak size: 4 Allocated at: misc.h and line: 202. Type: > "new" > Memory: <01A695D0> Content: > 0000: 50 3c 3c 01 |P<<.| > Alloc num (658165) Leak size: 20 Allocated at: integer.cpp and line: 2922. > Type: "new" > Memory: <01A43798> Content: > 0000: 48 0d 43 01 cd cd cd cd 02 00 00 00 d8 c2 9f 01 > |H.C.............| > 0010: 00 00 00 00 |....| > > FWIW, the first two leaks are in NewObject and the last one is in > NewInteger (as I said, doesn't seem particularly helpful on its own). > > Is this a known issue? Is there something else I need to call to clean up > the memory? >
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