1 files changed, 50 insertions, 0 deletions
diff --git a/libqpdf/qpdf/QPDFCrypto_openssl.hh b/libqpdf/qpdf/QPDFCrypto_openssl.hh
new file mode 100644
index 00000000..ff8c4831
--- /dev/null
+++ b/libqpdf/qpdf/QPDFCrypto_openssl.hh
@@ -0,0 +1,50 @@
+#ifndef QPDFCRYPTO_openssl_HH
+#define QPDFCRYPTO_openssl_HH
+
+#include <qpdf/QPDFCryptoImpl.hh>
+#include <string>
+#ifdef OPENSSL_IS_BORINGSSL
+#include <openssl/cipher.h>
+#include <openssl/digest.h>
+#else
+#include <openssl/evp.h>
+#endif
+
+class QPDFCrypto_openssl: public QPDFCryptoImpl
+{
+  public:
+    QPDFCrypto_openssl();
+
+    QPDF_DLL
+    ~QPDFCrypto_openssl() override;
+
+    void MD5_init() override;
+    void MD5_update(unsigned char const* data, size_t len) override;
+    void MD5_finalize() override;
+    void MD5_digest(MD5_Digest) override;
+
+    void RC4_init(unsigned char const* key_data, int key_len = -1) override;
+    void RC4_process(unsigned char* in_data, size_t len,
+                     unsigned char* out_data = 0) override;
+    void RC4_finalize() override;
+
+    void SHA2_init(int bits) override;
+    void SHA2_update(unsigned char const* data, size_t len) override;
+    void SHA2_finalize() override;
+    std::string SHA2_digest() override;
+
+    void rijndael_init(
+        bool encrypt, unsigned char const* 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;
+
+  private:
+    EVP_MD_CTX* const md_ctx;
+    EVP_CIPHER_CTX* const cipher_ctx;
+    uint8_t md_out[EVP_MAX_MD_SIZE];
+    size_t sha2_bits;
+};
+
+#endif // QPDFCRYPTO_openssl_HH