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makekey(8) [osx man page]

MAKEKEY(8)						    BSD System Manager's Manual 						MAKEKEY(8)

makekey -- make encrypted keys or passwords SYNOPSIS
Makekey encrypts a key and salt which it reads from the standard input, writing the result to the standard output. The key and salt values are expected to be ten and two bytes, respectively, in length. See crypt(3) for more information on what characters the key and salt can contain and how the encrypted value is calculated. SEE ALSO
crypt(1), login(1), crypt(3) HISTORY
A makekey command appeared in Version 7 AT&T UNIX. BSD
December 11, 1993 BSD

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makekey(8)						      System Manager's Manual							makekey(8)

makekey - generate encryption key SYNOPSIS
/usr/lbin/makekey DESCRIPTION
The command improves the usefulness of encryption schemes depending on a key by increasing the amount of time required to search the key space. It reads 10 bytes from its standard input, and writes 13 bytes on its standard output. The output depends on the input in a way intended to be difficult to compute (that is, to require a substantial fraction of a second). The first eight input bytes (the "input key") can be arbitrary ASCII characters. The last two (the salt) are best chosen from the set of digits, uppercase and lowercase letters, the period (.), and the slash (/). The salt characters are repeated as the first two characters of the output. The remaining 11 output characters are chosen from the same set as the salt and constitute the "output key". The transformation performed is essentially the following: the salt is used to select one of 4096 cryptographic machines all based on the National Bureau of Standards DES algorithm, but modified in 4096 different ways. Using the input key as key, a constant string is fed into the machine and recirculated a number of times. The 64 bits that come out are distributed into the 66 useful key bits in the result. The command is intended for programs that perform encryption (for instance, Usually input and output for are pipes. RELATED INFORMATION
Commands: crypt(1), ed(1), ex(1), vi(1) delim off makekey(8)
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