add dependencies to repo

1 files changed, 32 insertions, 0 deletions

diff --git a/ext/olm/lib/crypto-algorithms/blowfish.h b/ext/olm/lib/crypto-algorithms/blowfish.h
new file mode 100644
index 0000000..d8e9d4a
--- /dev/null
+++ b/ext/olm/lib/crypto-algorithms/blowfish.h
@@ -0,0 +1,32 @@
+/*********************************************************************
+* Filename:   blowfish.h
+* Author:     Brad Conte (brad AT bradconte.com)
+* Copyright:
+* Disclaimer: This code is presented "as is" without any guarantees.
+* Details:    Defines the API for the corresponding Blowfish implementation.
+*********************************************************************/
+
+#ifndef BLOWFISH_H
+#define BLOWFISH_H
+
+/*************************** HEADER FILES ***************************/
+#include <stddef.h>
+
+/****************************** MACROS ******************************/
+#define BLOWFISH_BLOCK_SIZE 8           // Blowfish operates on 8 bytes at a time
+
+/**************************** DATA TYPES ****************************/
+typedef unsigned char BYTE;             // 8-bit byte
+typedef unsigned int  WORD;             // 32-bit word, change to "long" for 16-bit machines
+
+typedef struct {
+   WORD p[18];
+   WORD s[4][256];
+} BLOWFISH_KEY;
+
+/*********************** FUNCTION DECLARATIONS **********************/
+void blowfish_key_setup(const BYTE user_key[], BLOWFISH_KEY *keystruct, size_t len);
+void blowfish_encrypt(const BYTE in[], BYTE out[], const BLOWFISH_KEY *keystruct);
+void blowfish_decrypt(const BYTE in[], BYTE out[], const BLOWFISH_KEY *keystruct);
+
+#endif   // BLOWFISH_H