Touch Crypto for S60 E5/^3 1.70
the author of this app says:
Touch Crypto is the best encryption tools to protect your private files - photos, multimedias, audios, videos, songs, voice - all confidential files on your mobile! It is safe, fast and easy! Specially designed for touch screen mobile. Without password, no one can access your encrypted data. The Safe File Index records all your encrypted file indexes, processing all encrypted files in just the Safe File Index in a centralized way.