HP-UX Reference (11i v3 07/02) - 3 Library Functions A-M (vol 6)

bigcrypt(3C) bigcrypt(3C)

(TO BE OBSOLETED)

NAME

bigcrypt() - generate hashing encryption on large strings

SYNOPSIS

#include <hpsecurity.h>

#include <prot.h>

char *bigcrypt(char *key, char *salt);

DESCRIPTION

bigcrypt() acts like crypt(3C), but handles much larger strings.

bigcrypt() takes the segments of

cleartext and encrypts them individually, at ﬁrst using the salt passed in, and then using the ﬁrst two char-

acters of the previous encrypted segment as the salt for the next segment. This avoids duplicated cipher-

text chunks when the password characters are repeated, so that the encryption of a segment involves the

encryption of all the previous segments.

Each ciphertext segment is concatenated, with the salt at the beginning, to form the entire encrypted

string.

WARNINGS

HP-UX 11i Version 3 is the last release to support trusted systems functionality.

AUTHOR

bigcrypt was developed by HP.