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55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
/* sha1.h
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Copyright (c) 2005 Michael D. Leonhard
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http://tamale.net/
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#pragma once
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typedef unsigned int Uint32;
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class SHA1
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{
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private:
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// fields
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Uint32 H0 = 0x67452301;
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Uint32 H1 = 0xefcdab89;
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Uint32 H2 = 0x98badcfe;
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Uint32 H3 = 0x10325476;
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Uint32 H4 = 0xc3d2e1f0;
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unsigned char bytes[64];
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int unprocessedBytes = 0;
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Uint32 size = 0;
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void process();
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public:
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SHA1();
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~SHA1();
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void addBytes(const char *data, int num);
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unsigned char *getDigest();
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// utility methods
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static Uint32 lrot(Uint32 x, int bits);
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static void storeBigEndianUint32(unsigned char *byte, Uint32 num);
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static void hexPrinter(unsigned char *c, int l);
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};
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