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#include <qpdf/QPDFCrypto_native.hh>
#include <qpdf/QUtil.hh>
#ifdef USE_INSECURE_RANDOM
# include <qpdf/InsecureRandomDataProvider.hh>
#endif
#include <qpdf/SecureRandomDataProvider.hh>
static RandomDataProvider*
getRandomProvider()
{
#ifdef USE_INSECURE_RANDOM
static RandomDataProvider* insecure_random_data_provider =
InsecureRandomDataProvider::getInstance();
#else
static RandomDataProvider* insecure_random_data_provider = nullptr;
#endif
static RandomDataProvider* secure_random_data_provider =
SecureRandomDataProvider::getInstance();
static RandomDataProvider* provider =
(secure_random_data_provider ? secure_random_data_provider
: insecure_random_data_provider ? insecure_random_data_provider
: nullptr);
if (provider == nullptr) {
throw std::logic_error("QPDFCrypto_native has no random data provider");
}
return provider;
}
void
QPDFCrypto_native::provideRandomData(unsigned char* data, size_t len)
{
getRandomProvider()->provideRandomData(data, len);
}
void
QPDFCrypto_native::MD5_init()
{
md5 = std::make_shared<MD5_native>();
}
void
QPDFCrypto_native::MD5_update(unsigned char const* data, size_t len)
{
md5->update(const_cast<unsigned char*>(data), len);
}
void
QPDFCrypto_native::MD5_finalize()
{
md5->finalize();
}
void
QPDFCrypto_native::MD5_digest(MD5_Digest d)
{
md5->digest(d);
}
void
QPDFCrypto_native::RC4_init(unsigned char const* key_data, int key_len)
{
rc4 = std::make_shared<RC4_native>(key_data, key_len);
}
void
QPDFCrypto_native::RC4_process(unsigned char const* in_data, size_t len, unsigned char* out_data)
{
rc4->process(in_data, len, out_data);
}
void
QPDFCrypto_native::RC4_finalize()
{
}
void
QPDFCrypto_native::SHA2_init(int bits)
{
sha2 = std::make_shared<SHA2_native>(bits);
}
void
QPDFCrypto_native::SHA2_update(unsigned char const* data, size_t len)
{
sha2->update(data, len);
}
void
QPDFCrypto_native::SHA2_finalize()
{
sha2->finalize();
}
std::string
QPDFCrypto_native::SHA2_digest()
{
return sha2->getRawDigest();
}
void
QPDFCrypto_native::rijndael_init(
bool encrypt,
unsigned char const* key_data,
size_t key_len,
bool cbc_mode,
unsigned char* cbc_block)
{
aes_pdf = std::make_shared<AES_PDF_native>(encrypt, key_data, key_len, cbc_mode, cbc_block);
}
void
QPDFCrypto_native::rijndael_process(unsigned char* in_data, unsigned char* out_data)
{
aes_pdf->update(in_data, out_data);
}
void
QPDFCrypto_native::rijndael_finalize()
{
}
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