Box Backup 0.09 with a few tweeks

1 files changed, 59 insertions, 0 deletions

diff --git a/lib/crypto/CipherDescription.h b/lib/crypto/CipherDescription.h
new file mode 100755
index 00000000..2977f7da
--- /dev/null
+++ b/lib/crypto/CipherDescription.h
@@ -0,0 +1,59 @@
+// --------------------------------------------------------------------------
+//
+// File
+//		Name:    CipherDescription.h
+//		Purpose: Pure virtual base class for describing ciphers
+//		Created: 1/12/03
+//
+// --------------------------------------------------------------------------
+
+#ifndef CIPHERDESCRIPTION__H
+#define CIPHERDESCRIPTION__H
+
+#ifndef BOX_LIB_CRYPTO_OPENSSL_HEADERS_INCLUDED_TRUE
+	#define BOX_LIB_CRYPTO_OPENSSL_HEADERS_INCLUDED_FALSE
+	class EVP_CIPHER;
+	class EVP_CIPHER_CTX;
+#endif
+
+// --------------------------------------------------------------------------
+//
+// Class
+//		Name:    CipherDescription
+//		Purpose: Describes a cipher
+//		Created: 1/12/03
+//
+// --------------------------------------------------------------------------
+class CipherDescription
+{
+public:
+	CipherDescription();
+	CipherDescription(const CipherDescription &rToCopy);
+	virtual ~CipherDescription();
+	CipherDescription &operator=(const CipherDescription &rToCopy);
+	
+	// Return OpenSSL cipher object
+	virtual const EVP_CIPHER *GetCipher() const = 0;
+	
+	// Setup any other parameters
+	virtual void SetupParameters(EVP_CIPHER_CTX *pCipherContext) const = 0;
+	
+	// Mode parameter for cipher -- used in derived classes
+	typedef enum
+	{
+		Mode_ECB = 0,
+		Mode_CBC = 1,
+		Mode_CFB = 2,
+		Mode_OFB = 3
+	} CipherMode;
+
+#ifdef PLATFORM_OLD_OPENSSL
+	// For the old version of OpenSSL, we need to be able to store cipher descriptions.
+	virtual CipherDescription *Clone() const = 0;
+	// And to be able to store new IVs
+	virtual void SetIV(const void *pIV) = 0;
+#endif
+};
+
+#endif // CIPHERDESCRIPTION__H
+