Seccure is a Security software developed by B. Poettering. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Seccure:
BS Editor: seccure is free software published under the GNU General Public License (GPL). To my best knowledge none of the implemented algorithms and cryptographical schemes (ECDH, ECIES, ECDSA, AES-CTR, SHA256, SHA512) is covered by software patents (see the Patent statement). All the named algorithms and all underlying elliptic curves (standardized by NIST and SECG) are considered cryptographically secure nowadays. seccure received two security audits [1,2] by the Debian auditing team in August 2006, none of them detecting a problem. you can free download Seccure 0.4 now.