Message Hiding
- 2. CONTAINS: 1. Cryptography 2. Cryptanalysis 3. Cryptology 4. SUBSTITUTION TECHNIQUES 5. TRANSPOSITON TECHNIQUES
- 3. Readable text Cryptographic system Unreadable text It convert the Readable text in a Unreadable text.
- 4. Unreadable text Cryptology system Readable text It convert the Unreadable text in a Readable text.
- 5. It I the combination of Cryptography and Cryptanalysis
- 7. ENCRYPTION: Plain text ENCRYPT Cipher text Plain text is convert to the Cipher text.
- 8. DECRYPTION: Cipher text DENCRYPT Plain text Cipher text is convert to the Plain text.
- 10. SUBSTITUTION TECHNIQUES: CAESAR`S CIPHER VIGENERE CIPHER
- 11. CAESAR`S CHIPER:
- 13. CIPHER TEXT: OVBRGGMJWYOIWRURGM key Plain text C R I N G E F R I N G E F R I N G E M E T E A C H S O L I E R A M E A l
- 14. TRANSPOSITON TECHNIQUES: RAIL FENCE CIPHER COLUMNAR TRANSPOSITION STEGANOGRAPHY
- 15. RAIL FENCE CIPHER: Plain text: COME HOME TOMORROW Cipher text: CMHMTMROOEOEOORW
- 16. COLUMNAR TRANSPOSITION: KEYWORD: ZEBRAS MASSAGE: WE ARE DISCOVERED FLEE AT ONCE Z E B R A S 6 3 2 4 1 5
- 17. CIPHER TEXT: EVLN ACDT ESEA ROFO DEEC WIREE
- 18. STEGANOGRAPHY
- 20. CONCLUSION :- It is major achievement in computer engineering. It will allow perfectly secure messages ,secure discussion etc. between sender and receiver.