!s explain aes-gcm

search results

search results with summaries

AES-GCM (Advanced Encryption Standard — Galois/Counter Mode) is a symmetric key encryption algorithm that provides both encryption and authentication, ensuring the confidentiality and integrity of data. According to the article 'How does AES GCM encryption work', it utilizes a 256-bit key and a 96-bit initialization vector (IV), which is critical for both performance and security. The authentication tag generated during the encryption process is vital for verifying data integrity, as noted in 'The Ultimate Developer's Guide to AES-GCM', which also stresses the importance of using PBKDF2 for secure key derivation. The article 'AES-GCM authenticated encryption' specifies that the IV must be exactly 12 bytes, and the authentication tag is appended to the ciphertext to detect any tampering. Furthermore, the use of Additional Authenticated Data (AAD) enhances security by allowing context-specific encryption and preventing replay attacks, as discussed in 'What is the use of Additional data or associated data in aes-gcm'. Overall, AES-GCM is recognized for its efficiency and security, making it a preferred choice for encrypting sensitive data in various applications, including web security, as mentioned in 'GCM Mode'.