Hi all,
I have written a class in C++ to easily access functions from OpenSSL from our
products.
In the constructor of my class I do the following lines of code:
threadSetup();
OpenSSL_add_all_digests();
OpenSSL_add_all_ciphers();
OpenSSL_add_all_algorithms();
ERR_load_PKCS7_strings();
ERR_load_X509_strings();
ERR_load_crypto_strings();
ERR_load_ERR_strings();
RAND_seed( rnd_seed, sizeof(rnd_seed) );
ENGINE_load_builtin_engines();
In the destructor I do the following:
ENGINE_cleanup();
RAND_cleanup();
CRYPTO_cleanup_all_ex_data();
ERR_free_strings();
threadCleanUp();
This leads to a memory leak, because of the OpenSSL_add_all_...-functions in
the constructor. In the online manual I've read that I need to call
EVP_cleanup();
in the destructor too. So if I do this all memory leaks are gone, but the
function
X509_verify_cert()
fails with the error 'certificate signature failure '.
If I remove the EVP_cleanup() from the destructor the function works as fine as
it should work.
Could please anyone give me a hint what could be wrong?
The destructor is called at least once before the constructor is called again
and X509_verify_cert is called.
Thanks in advance.
Frank Wockenfuß
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