mirror of https://github.com/qpdf/qpdf.git
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
#ifndef QPDFCRYPTO_OPENSSL_HH
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#define QPDFCRYPTO_OPENSSL_HH
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#include <qpdf/QPDFCryptoImpl.hh>
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#include <string>
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#if (defined(__GNUC__) || defined(__clang__))
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# pragma GCC diagnostic push
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# pragma GCC diagnostic ignored "-Wold-style-cast"
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#endif
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#include <openssl/opensslv.h>
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#if !defined(OPENSSL_VERSION_MAJOR) || OPENSSL_VERSION_MAJOR < 3
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# define QPDF_OPENSSL_1
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#endif
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#include <openssl/rand.h>
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#ifdef OPENSSL_IS_BORINGSSL
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# include <openssl/cipher.h>
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# include <openssl/digest.h>
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#else
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# include <openssl/evp.h>
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#endif
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#if (defined(__GNUC__) || defined(__clang__))
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# pragma GCC diagnostic pop
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#endif
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class QPDFCrypto_openssl: public QPDFCryptoImpl
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{
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public:
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QPDFCrypto_openssl();
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~QPDFCrypto_openssl() override;
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void provideRandomData(unsigned char* data, size_t len) override;
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void MD5_init() override;
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void MD5_update(unsigned char const* data, size_t len) override;
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void MD5_finalize() override;
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void MD5_digest(MD5_Digest) override;
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void RC4_init(unsigned char const* key_data, int key_len = -1) override;
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void RC4_process(
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unsigned char const* in_data, size_t len, unsigned char* out_data = nullptr) override;
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void RC4_finalize() override;
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void SHA2_init(int bits) override;
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void SHA2_update(unsigned char const* data, size_t len) override;
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void SHA2_finalize() override;
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std::string SHA2_digest() override;
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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) override;
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void rijndael_process(unsigned char* in_data, unsigned char* out_data) override;
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void rijndael_finalize() override;
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private:
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EVP_MD_CTX* const md_ctx;
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EVP_CIPHER_CTX* const cipher_ctx;
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uint8_t md_out[EVP_MAX_MD_SIZE];
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size_t sha2_bits;
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};
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#endif // QPDFCRYPTO_OPENSSL_HH
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