Cryptology is the science of creating and breaking codes and ciphers. It has three main eras in history - the manual era beginning with Julius Caesar, the mechanical era with machines like the German Enigma, and the modern computer-based era using algorithms such as hash, RSA, and 3DES. Cryptology has many useful applications for information security across different sectors such as social media, banking, email, data protection, and military and diplomatic communications.

1. MD. AMINUL ISLAM
ROLL 18232037

2. CRYPTOLOGY

3. CRYPTOLOGY
Cryptography
Science of creating codes or ciphers
Cryptanalysis
Science of breaking codes and ciphers

4. CRYPTOGRAPHY
HISTORY
There are three eras in the history of cryptography
1. The manual era : Julius Caeser
2. The mechanical era : German Enigma
3. The modern era : Computer based
algorithm (Hash,RSA,3DES).

5. CRYPTOLOGY
 Useable field of cryptology
Security purpose for all sector of information technology.
Example: Social media(Facebook ,whatsapp), personal security,
online banking, Email, Data security, military purpose, diplomats etc.

6. XLERO CSY EPP
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