addedd communi

1 files changed, 46 insertions, 0 deletions

diff --git a/libcommuni/src/3rdparty/qblowfish/qblowfish.h b/libcommuni/src/3rdparty/qblowfish/qblowfish.h
new file mode 100644
index 0000000..100a2e6
--- /dev/null
+++ b/libcommuni/src/3rdparty/qblowfish/qblowfish.h
@@ -0,0 +1,46 @@
+#ifndef QBLOWFISH_H
+#define QBLOWFISH_H
+
+#include <QByteArray>
+
+class QBlowfish
+{
+public:
+    QBlowfish(const QByteArray &key);
+    bool init();
+
+    // Padding:
+    //
+    // Blowfish works on 8-byte blocks. Padding makes it usable even
+    // in case where the input size is not in exact 8-byte blocks.
+    //
+    // If padding is disabled (the default), encrypted() will work only if the
+    // input size (in bytes) is a multiple of 8. (If it's not a multiple of 8,
+    // encrypted() will return a null bytearray.)
+    //
+    // If padding is enabled, we increase the input length to a multiple of 8
+    // by padding bytes as per PKCS5
+    //
+    // If padding was enabled during encryption, it should be enabled during
+    // decryption for correct decryption (and vice versa).
+
+    void setPaddingEnabled(bool enabled);
+    bool isPaddingEnabled() const;
+
+    // Encrypt / decrypt
+    QByteArray encrypted(const QByteArray &clearText);
+    QByteArray decrypted(const QByteArray &cipherText);
+
+private:
+    // core encrypt/decrypt methods, encrypts/decrypts in-place
+    void coreEncrypt(char *x);
+    void coreDecrypt(char *x);
+
+    QByteArray m_key;
+    bool m_initialized;
+    bool m_paddingEnabled;
+    QByteArray m_parray;
+    QByteArray m_sbox1, m_sbox2, m_sbox3, m_sbox4;
+};
+
+#endif // QBLOWFISH_H