A naukri.com initiative
Dev
1d
97
Image Credit: Dev
How Messengers Actually Encrypt Messages (End-to-End)
- The article discusses the implementation of end-to-end encryption for message security, using JavaScript and the Web Crypto API.
- It highlights the importance of private, public, and shared keys in the encryption process, explaining their roles and storage methods.
- The shared secret key, derived from private and public keys, enables the encryption and decryption of messages.
- The article delves into asymmetric encryption and ECDH key exchange protocols for establishing shared secret keys securely.
- Web Crypto API in browsers provides low-level cryptographic primitives for operations like encryption, decryption, hashing, and signature generation.
- A ChatCrypto class example is presented, detailing the key initialization process, encryption, and decryption steps using AES-GCM algorithm.
- Generation of unique Initialization Vectors (IV) for encryption and decryption, along with data encoding and decoding, is explained.
- The article emphasizes the importance of secure key pair generation, public key exchange, and secure message exchange practices for robust encryption.
- The illustration concludes with practical examples demonstrating text encryption and decryption using the ChatCrypto class.
- Overall, the article provides insights into creating a secure messaging system through effective use of encryption methods and APIs.
Read Full Article
5 Likes
For uninterrupted reading, download the app