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#include <qpdf/assert_test.h>
#include <qpdf/MD5.hh>
#include <qpdf/QPDFCryptoImpl.hh>
#include <qpdf/QPDFCryptoProvider.hh>
#include <cstring>
#include <iostream>
// This is a dummy crypto implementation that only implements MD5 digest. It doesn't work, but
// it enables us to exercise the wiring of registering, querying, and setting a crypto provider.
class Potato: public QPDFCryptoImpl
{
public:
void
provideRandomData(unsigned char* data, size_t len) override
{
}
void
MD5_init() override
{
}
void
MD5_update(const unsigned char* data, size_t len) override
{
}
void
MD5_finalize() override
{
}
void
MD5_digest(unsigned char* digest) override
{
std::memcpy(digest, "0123456789abcdef", sizeof(QPDFCryptoImpl::MD5_Digest));
}
void
SHA2_init(int bits) override
{
}
void
SHA2_update(const unsigned char* data, size_t len) override
{
}
void
SHA2_finalize() override
{
}
std::string
SHA2_digest() override
{
return {};
}
void
RC4_init(const unsigned char* key_data, int key_len) override
{
}
void
RC4_process(const unsigned char* in_data, size_t len, unsigned char* out_data) override
{
}
void
RC4_finalize() override
{
}
void
rijndael_init(
bool encrypt,
const unsigned char* key_data,
size_t key_len,
bool cbc_mode,
unsigned char* cbc_block) override
{
}
void
rijndael_process(unsigned char* in_data, unsigned char* out_data) override
{
}
void
rijndael_finalize() override
{
}
};
int
main()
{
auto initial = QPDFCryptoProvider::getDefaultProvider();
QPDFCryptoProvider::registerImpl<Potato>("potato");
QPDFCryptoProvider::setDefaultProvider("potato");
assert(QPDFCryptoProvider::getDefaultProvider() == "potato");
MD5 m;
m.encodeString("quack"); // anything
MD5::Digest d;
m.digest(d);
// hex for 0123456789abcdef
assert(m.unparse() == "30313233343536373839616263646566");
std::cout << "assertions passed\n";
return 0;
}
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