Encrypted files: files easily understood by unauthorized people can not change the data using algorithms and other procedures.
SSL (HTTPS): Acronym for secure socket layers used for online traffic encryption standard security technologies adopted a national level.
Black hat / encrypted data: packet sniffing are 3 categories, this post will focus on type 2. Type 1 packet sniffing you already read my posts, I recommend you to do so now.
Difference between type 1 and type 2
The main difference between the 2 procedures involved a couple of extra steps that are due. For non-malicious purposes, type 1 and type 2 was the second most used is totally different. Additional measures to decrypt packets to your computer to install openSSL is required. This method is not the only way to decrypt SSL but I think this is the easiest way.
Why OpenSSL
OpenSSL wire shark animal force of IE your packet analysis is required for procedures other than procedures using algorithmic software system is required to decrypt packets.
Should I worry about type 2?
You must use the public network VPN tunnel so you can protect yourself from.