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- Path: wanshu.stl.ibm.com!becker
- From: becker@wanshu.stl.ibm.com (Bill Becker)
- Newsgroups: comp.lang.c
- Subject: Re: help encryption program
- Date: 15 Jan 1996 20:33:15 GMT
- Organization: ISSC Bocaraton News Server
- Distribution: world
- Message-ID: <4dedmb$psi@bocanews.bocaraton.ibm.com>
- References: <4dbb0o$dbm@jaring.my>
- NNTP-Posting-Host: wanshu.stl.ibm.com
-
- In article <4dbb0o$dbm@jaring.my>, meimei@pl.jaring.my writes:
- |> Requirement :
- |> ==========
- |>
- |> A encryption scheme is to interchange letters of the alphabet on a
- |> one-to-one basis. This can be accomplished with a transalation table
- |> for the 52 lowercase and uppercase letters.
- |>
- |> Write a C program that implements such a scheme to encode text. The
- |> program must also have the option to decode text thst has been
- |> encoded. The user must select whether he wants to encode or decode the
- |> text and then type in the appropriate text.
- |>
- |> Can anyone solve the above problem ?
- |>
- Look at the book "Cryptography" by Bruce Schnier(sp? Sorry Bruce).
- In the appendix are a bunch of source listings. There's one in there
- called "Enigma." As in the crypto machine built by the Germans in WW-II.
-