PBKDF2
A password-based key derivation function that increases the cost of brute-force attacks through repeated hash iterations. It is commonly used for password storage and encryption key generation.
Timeline (last 90 days)
PBKDF2 stretches a user passphrase into a fixed-length encryption key through multiple rounds of hash iteration (typically 100,000 or more), increasing the computational cost of offline brute-force enumeration.
Common approaches to implementing E2EE include deriving keys from passwords (such as PBKDF2 or Argon2) followed by AES-256-GCM encryption, or using Signal Protocol's Double Ratchet Algorithm.
1Password uses PBKDF2-HMAC-SHA256 combined with a proprietary Secret Key mechanism, in which a 128-bit local key and the master password jointly participate in derivation.
All Facts (4)
行业标准要求使用bcrypt、Argon2或PBKDF2等慢哈希算法对密码进行加盐哈希处理，MD5/SHA1等快速哈希可在数秒内被彩虹表攻击破解
90%UnverifiedPBKDF2 stretches a user passphrase into a fixed-length encryption key through multiple rounds of hash iteration (typically 100,000 or more), increasing the computational cost of offline brute-force enumeration.
50%UnverifiedCommon approaches to implementing E2EE include deriving keys from passwords (such as PBKDF2 or Argon2) followed by AES-256-GCM encryption, or using Signal Protocol's Double Ratchet Algorithm.
50%Unverified1Password uses PBKDF2-HMAC-SHA256 combined with a proprietary Secret Key mechanism, in which a 128-bit local key and the master password jointly participate in derivation.
50%