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author | n0p <0x90@n0p.cc> | 2014-10-27 19:07:43 +0100 |
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committer | n0p <0x90@n0p.cc> | 2014-10-27 19:07:43 +0100 |
commit | 0bcd78be9657f35dd27a02c16cb70234b1e44d5b (patch) | |
tree | 4f1eb291ab604beaac47f011bcec6b53fc300a2d /src/des/des.h | |
download | JonahHex-0bcd78be9657f35dd27a02c16cb70234b1e44d5b.tar.gz JonahHex-0bcd78be9657f35dd27a02c16cb70234b1e44d5b.zip |
Reversing challenge 300 from hack.lu 2014.
Diffstat (limited to 'src/des/des.h')
-rw-r--r-- | src/des/des.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/des/des.h b/src/des/des.h new file mode 100644 index 0000000..af6aee9 --- /dev/null +++ b/src/des/des.h @@ -0,0 +1,25 @@ +#ifndef DES_H +#define DES_H + +#include <stdint.h> + +#include "..\import.h" + +#define rotl32(x,n) (((x) << ((uint32_t)(n))) | ((x) >> (32 - (uint32_t)(n)))) +#define rotr32(x,n) (((x) >> ((uint32_t)(n))) | ((x) << (32 - (uint32_t)(n)))) + +#define byteswap32(x) ((rotl32(x, 8) & 0x00ff00ff) | (rotr32(x, 8) & 0xff00ff00)) + +#define Bzero(x, y) pMemset(x, 0, y) + +typedef struct des_key { + char kn[16][8]; + uint32_t sp[8][64]; + char iperm[16][16][8]; + char fperm[16][16][8]; +} DES_KEY; + +int _mcrypt_set_key(DES_KEY * dkey, char *user_key, int len); +void _mcrypt_encrypt(DES_KEY * key, char *block); + +#endif
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