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annotate Doc/libcrypt.tex @ 6719:faebc1940432 legacy-trunk

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author Guido van Rossum <guido@python.org>
date Tue, 02 Dec 1997 20:38:11 +0000
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1 \section{Built-in Module {\tt crypt}}
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2 \label{module-crypt}
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3 \bimodindex{crypt}
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4
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5 This module implements an interface to the crypt({\bf 3}) routine,
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6 which is a one-way hash function based upon a modified DES algorithm;
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7 see the Unix man page for further details. Possible uses include
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8 allowing Python scripts to accept typed passwords from the user, or
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9 attempting to crack Unix passwords with a dictionary.
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10 \index{crypt(3)}
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12 \renewcommand{\indexsubitem}{(in module crypt)}
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13 \begin{funcdesc}{crypt}{word\, salt}
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14 \var{word} will usually be a user's password. \var{salt} is a
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15 2-character string which will be used to select one of 4096 variations
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16 of DES. The characters in \var{salt} must be either \code{.},
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17 \code{/}, or an alphanumeric character. Returns the hashed password
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18 as a string, which will be composed of characters from the same
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19 alphabet as the salt.
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20 \end{funcdesc}
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21
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22 The module and documentation were written by Steve Majewski.
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23 \index{Majewski, Steve}