diff options
| author | faketruth <faketruth@0a769ca7-a7f5-676a-18bf-c427514a06d6> | 2011-10-03 20:41:19 +0200 |
|---|---|---|
| committer | faketruth <faketruth@0a769ca7-a7f5-676a-18bf-c427514a06d6> | 2011-10-03 20:41:19 +0200 |
| commit | 386d58b5862d8b76925c6523721594887606e82a (patch) | |
| tree | ef073e7a843f4b75a4008d4b7383f7cdf08ceee5 /source/md5/md5.h | |
| parent | Visual Studio 2010 solution and project files (diff) | |
| download | cuberite-386d58b5862d8b76925c6523721594887606e82a.tar cuberite-386d58b5862d8b76925c6523721594887606e82a.tar.gz cuberite-386d58b5862d8b76925c6523721594887606e82a.tar.bz2 cuberite-386d58b5862d8b76925c6523721594887606e82a.tar.lz cuberite-386d58b5862d8b76925c6523721594887606e82a.tar.xz cuberite-386d58b5862d8b76925c6523721594887606e82a.tar.zst cuberite-386d58b5862d8b76925c6523721594887606e82a.zip | |
Diffstat (limited to '')
| -rw-r--r-- | source/md5/md5.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/source/md5/md5.h b/source/md5/md5.h new file mode 100644 index 000000000..140ad1f14 --- /dev/null +++ b/source/md5/md5.h @@ -0,0 +1,93 @@ +/* MD5
+ converted to C++ class by Frank Thilo (thilo@unix-ag.org)
+ for bzflag (http://www.bzflag.org)
+
+ based on:
+
+ md5.h and md5.c
+ reference implementation of RFC 1321
+
+ Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
+rights reserved.
+
+License to copy and use this software is granted provided that it
+is identified as the "RSA Data Security, Inc. MD5 Message-Digest
+Algorithm" in all material mentioning or referencing this software
+or this function.
+
+License is also granted to make and use derivative works provided
+that such works are identified as "derived from the RSA Data
+Security, Inc. MD5 Message-Digest Algorithm" in all material
+mentioning or referencing the derived work.
+
+RSA Data Security, Inc. makes no representations concerning either
+the merchantability of this software or the suitability of this
+software for any particular purpose. It is provided "as is"
+without express or implied warranty of any kind.
+
+These notices must be retained in any copies of any part of this
+documentation and/or software.
+
+*/
+
+#ifndef BZF_MD5_H
+#define BZF_MD5_H
+
+#include <string>
+#include <iostream>
+
+
+// a small class for calculating MD5 hashes of strings or byte arrays
+// it is not meant to be fast or secure
+//
+// usage: 1) feed it blocks of uchars with update()
+// 2) finalize()
+// 3) get hexdigest() string
+// or
+// MD5(std::string).hexdigest()
+//
+// assumes that char is 8 bit and int is 32 bit
+class MD5
+{
+public:
+ typedef unsigned int size_type; // must be 32bit
+
+ MD5();
+ MD5(const std::string& text);
+ void update(const unsigned char *buf, size_type length);
+ void update(const char *buf, size_type length);
+ MD5& finalize();
+ std::string hexdigest() const;
+ friend std::ostream& operator<<(std::ostream&, MD5 md5);
+
+private:
+ void init();
+ typedef unsigned char uint1; // 8bit
+ typedef unsigned int uint4; // 32bit
+ enum {blocksize = 64}; // VC6 won't eat a const static int here
+
+ void transform(const uint1 block[blocksize]);
+ static void decode(uint4 output[], const uint1 input[], size_type len);
+ static void encode(uint1 output[], const uint4 input[], size_type len);
+
+ bool finalized;
+ uint1 buffer[blocksize]; // bytes that didn't fit in last 64 byte chunk
+ uint4 count[2]; // 64bit counter for number of bits (lo, hi)
+ uint4 state[4]; // digest so far
+ uint1 digest[16]; // the result
+
+ // low level logic operations
+ static inline uint4 F(uint4 x, uint4 y, uint4 z);
+ static inline uint4 G(uint4 x, uint4 y, uint4 z);
+ static inline uint4 H(uint4 x, uint4 y, uint4 z);
+ static inline uint4 I(uint4 x, uint4 y, uint4 z);
+ static inline uint4 rotate_left(uint4 x, int n);
+ static inline void FF(uint4 &a, uint4 b, uint4 c, uint4 d, uint4 x, uint4 s, uint4 ac);
+ static inline void GG(uint4 &a, uint4 b, uint4 c, uint4 d, uint4 x, uint4 s, uint4 ac);
+ static inline void HH(uint4 &a, uint4 b, uint4 c, uint4 d, uint4 x, uint4 s, uint4 ac);
+ static inline void II(uint4 &a, uint4 b, uint4 c, uint4 d, uint4 x, uint4 s, uint4 ac);
+};
+
+std::string md5(const std::string & str);
+
+#endif
\ No newline at end of file |