**Important Security Enhancement**

[zhenrong-wang]

The HPC-NOW handles your cloud AK and SK or key file. This information is very important to every HPC-NOW users. And it is HPC-NOW's responsibility to encrypt them in your file system.

Meanwhile, you still need to take care of the encryption key and the password of the system user hpc-now.

Previously, before 0.2.x, I developed a crypto module to encrypt any files contain sensitive information. However, that module is far away from industrial standard encryption.

Therefore, we implemented the AES module natively to encrypt and decrypt sensitive files.

Preliminary tests have been done, and it works quite well for all the files in HPC-NOW.

Please stay tuned for the 0.3.x version. Your security is our concern.