Symmetric Key Encryption of Text Documents

The issue of data security has manifested itself over the last two decades. This paper orates the implementation of private-key or symmetric-key encryption for equipment against security invasion and confidential conveyance of information from one location to another.

Presented in this paper are methodologies to encrypt any plain-text file as cipher-text and to decrypt the cipher-text to recover original text file using Exclusive-or based symmetric key encryption. The encryption algorithm explained in the paper, while extremely simple, is nearly unbreakable. This methodology has promising applications in a wide variety of fields like cryptography, digital signature etc.