mirror of https://github.com/qpdf/qpdf.git
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
#ifndef QPDFCRYPTO_GNUTLS_HH
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#define QPDFCRYPTO_GNUTLS_HH
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#include <qpdf/QPDFCryptoImpl.hh>
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#include <memory>
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// gnutls headers must be last to prevent them from interfering with other headers. gnutls.h has to
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// be included first.
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#include <gnutls/gnutls.h>
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// This comment prevents clang-format from putting crypto.h before gnutls.h
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#include <gnutls/crypto.h>
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class QPDFCrypto_gnutls: public QPDFCryptoImpl
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{
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public:
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QPDFCrypto_gnutls();
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virtual ~QPDFCrypto_gnutls();
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virtual void provideRandomData(unsigned char* data, size_t len);
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virtual void MD5_init();
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virtual void MD5_update(unsigned char const* data, size_t len);
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virtual void MD5_finalize();
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virtual void MD5_digest(MD5_Digest);
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virtual void RC4_init(unsigned char const* key_data, int key_len = -1);
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virtual void RC4_process(unsigned char const* in_data, size_t len, unsigned char* out_data = 0);
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virtual void RC4_finalize();
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virtual void SHA2_init(int bits);
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virtual void SHA2_update(unsigned char const* data, size_t len);
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virtual void SHA2_finalize();
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virtual std::string SHA2_digest();
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virtual void rijndael_init(
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bool encrypt,
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unsigned char const* key_data,
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size_t key_len,
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bool cbc_mode,
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unsigned char* cbc_block);
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virtual void rijndael_process(unsigned char* in_data, unsigned char* out_data);
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virtual void rijndael_finalize();
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private:
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void badBits();
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gnutls_hash_hd_t hash_ctx;
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gnutls_cipher_hd_t cipher_ctx;
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int sha2_bits;
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bool encrypt;
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bool cbc_mode;
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char digest[64];
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unsigned char const* aes_key_data;
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size_t aes_key_len;
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};
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#endif // QPDFCRYPTO_GNUTLS_HH
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