Author Description:- KeePass supports the Advanced Encryption Standard (AES) and the Twofish algorithms to encrypt its password databases.
Both ciphers are regarded as very secure by the cryptography community. Banks are using these algorithms, too.
Even if you would use all computers in the world to attack one database, decrypting it would take longer than the age of the universe.
Even quantum computers won't help that much. The algorithms are symmetric so its complexity would be reduced a bit, anyway, the sun will go nova before you have decrypted the database.
The complete database is encrypted, not only the password fields. So your usernames, notes, etc. are hidden, too.
SHA-256 is used as password hash. SHA-256 is a 256-bit cryptographically secure one-way hash function. Your master password is hashed using this algorithm and its output is used as key for the encryption algorithms (AES and Twofish).
In contrast to many other hashing algorithms, no attacks are known yet against SHA-256.
In-memory passwords protection: your passwords are encrypted while KeePass is running, so even if Windows caches the KeePass process to disk, this wouldn't reveal your passwords anyway.
Security-enhanced password edit controls: KeePass is the first password safe that has security-enhanced password edit controls. None of the available password edit control spies work against the controls used in KeePass. The passwords entered in those controls aren't even visible in the process memory of KeePass.

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