Introduction to Cryptography
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Cryptography is the practice of hiding information by converting plain text into unreadable cipher text using encryption keys. There are two main types of encryption: symmetric encryption which uses the same key for encryption and decryption, and asymmetric encryption which uses a public key known to everyone and a private key kept secret. The document discusses the basic concepts and terminology in cryptography such as encryption, decryption, plain text, cipher text, and symmetric and asymmetric encryption key types.
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Introduction to Cryptography
- 1. Kishansinh Rathod Roll No – 4042 MSC-I
- 2. Cryptography derived its name from a Greek word called “Kryptos” which mean “Hidden Secrets”. It is the practice and study of hiding information. It is the science used to try to keep information secret and safe.
- 3. ENCRYPTION / DECRYPTION PLAIN TEXT CIPHER TEXT KEYS
- 4. Encryption The process of converting a plain text message into a cipher text message i.e. non- readable format with the help of a secret key is called encryption
- 5. Decryption The process of converting cipher text to plain text is called decryption.
- 8. In this type of Encryption, both sender and receiver will use same key to Encrypt and Decrypt information.
- 10. In this type of Encryption, a pair of keys known as Public Key and Private Key is used. As name indicates, Public Key is shared and known to everyone where as Private Key is with the person himself.