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Associated article: C Programming

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					_C PROGRAMMING COLUMN_
by Al Stevens

[LISTING ONE]

/* -------------- des.h ---------------- */
/* Header file for Data Encryption Standard algorithms  */

/* -------------- prototypes ------------------- */
void initkey(char *key);
void encrypt(char *blk);
void decrypt(char *blk);

/* ----------- tables ------------ */
extern unsigned char ...
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