Cryptography is the practice of securing communication from unauthorized access or manipulation by converting sensitive information into coded or unreadable form, known as ciphertext, using algorithms or mathematical computations. It involves techniques such as encryption, decryption, and key management to ensure confidentiality, integrity, and authenticity of data. Cryptography is used in various applications like secure communication, data privacy, authentication, digital signatures, and secure transactions.
Cryptography is the practice of securely communicating information in the presence of third parties, often referred to as adversaries. It involves techniques for secure communication and data protection by converting plaintext (unencrypted data) into ciphertext (encrypted data) in order to hide its meaning. The process of encryption uses algorithms and keys to convert the data, making it difficult for unauthorized parties to access or decipher the information. Conversely, decryption is the process of converting the encrypted ciphertext back into plaintext using the appropriate key, allowing authorized users to access the original data. Cryptography is widely used in various applications such as secure communication, data integrity, authentication, and privacy protection.
