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(guile.info.gz) Encryption

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 38.14 Encryption
 ================
 
 Please note that the procedures in this section are not suited for
 strong encryption, they are only interfaces to the well-known and
 common system library functions of the same name.  They are just as good
 (or bad) as the underlying functions, so you should refer to your system
 documentation before using them.
 
  -- Scheme Procedure: crypt key salt
  -- C Function: scm_crypt (key, salt)
      Encrypt KEY using SALT as the salt value to the crypt(3) library
      call.
 
    Although `getpass' is not an encryption procedure per se, it appears
 here because it is often used in combination with `crypt':
 
  -- Scheme Procedure: getpass prompt
  -- C Function: scm_getpass (prompt)
      Display PROMPT to the standard error output and read a password
      from `/dev/tty'.  If this file is not accessible, it reads from
      standard input.  The password may be up to 127 characters in
      length.  Additional characters and the terminating newline
      character are discarded.  While reading the password, echoing and
      the generation of signals by special characters is disabled.
 
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