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A toy program to encrypt and decrypt a given string of file using caesar cipher.

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jithin-renji/caesar-cipher

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Caesar Cipher

This is a program to encrypt and decrypt a given string of file using caesar cipher.

Installation

  1. Change to the source directory.
  2. Run the following commands:
sudo make
sudo make install

Usage

Usage: caesar <-e | -d> -f <file name> [-o <output file name>] <shift size>
       caesar <-e | -d> <plain text> <shift size>
       caesar <-e | -d> -I <shift size>

Options:
	-e, --encrypt		Encrypt plain text
	-d, --decrypt		Decrypt Caesar cipher text
	-I, --input		Take input from stdin
	-f, --file <file name>	Encrypt/Decrypt given file

	-o, --out <file name	Name of the output file in which
				the encrypted/decrypted fileis going
				to be stored

	-h, --help		Show this help message
	-V, --version		Show version information

See "COPYING" for license information.

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A toy program to encrypt and decrypt a given string of file using caesar cipher.

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