Cryptography Questions Medium
The main goals of cryptography are:
1. Confidentiality: Cryptography aims to ensure that only authorized parties can access and understand the information being communicated or stored. It involves encrypting the data using various algorithms and keys, making it unreadable to anyone without the proper decryption key.
2. Integrity: Cryptography ensures that the information remains intact and unaltered during transmission or storage. It uses techniques such as message authentication codes (MACs) or digital signatures to detect any unauthorized modifications or tampering with the data.
3. Authentication: Cryptography provides a means to verify the identity of the communicating parties or the integrity of the data being exchanged. It uses techniques like digital certificates, public key infrastructure (PKI), or cryptographic protocols to establish trust and authenticate the entities involved.
4. Non-repudiation: Cryptography aims to prevent any party from denying their involvement in a communication or transaction. It achieves this by using digital signatures or other cryptographic mechanisms that provide proof of the origin and integrity of the data, making it difficult for any party to deny their actions.
5. Key management: Cryptography involves the secure generation, distribution, and management of cryptographic keys. Proper key management ensures the effectiveness and security of cryptographic systems, preventing unauthorized access or decryption of the data.
Overall, the main goals of cryptography are to provide confidentiality, integrity, authentication, non-repudiation, and secure key management to protect sensitive information and ensure secure communication and transactions.