What is meant by Encryption and decryption of documents?
The encryption and decryption of documents are processes that serve to ensure the security of information, particularly during transmission or storage.
Encryption:
- Definition: Encryption is the process of converting readable data (plaintext) into unreadable data (ciphertext) using an encryption algorithm and a key.
- Purpose: The main purpose of encryption is to protect confidential information from unauthorized access. When data is encrypted, it can only be decrypted by people who are in possession of the correct key.
Decryption:
- Definition: Decryption is the process of converting encrypted data (ciphertext) back into readable data (plaintext) using the appropriate decryption algorithm and key.
- Purpose: Decryption allows authorized users to access the original, readable information. Only persons or systems with the correct decryption key can decrypt the encrypted data.