Tag Archives: SSL

SSL Types: What Certificate to Choose?

HTTPS makes the Internet safer. Among other things, HTTPS support increases the chances of taking higher positions in search results. To add HTTPS to your site you should generate validated SSL certificate. But before you start moving, you must select a type of certificate that suits you best. Depending on the level of verification, certificates can be of three types: More →

What is POODLE SSLv3 Vulnerability?

On the fourteenth of October, 2014, a dangerous vulnerability of SSLv3 encryption protocol called POODLE (Padding Oracle On Downgraded Legacy Encryption) was detected. It allows a cracker to get the information encoded by this version of the protocol using man-in-the-middle attack. To be more precise, this bug is a possibility of Padding Oracle attack that allows an attacker to send their data to the server via SSLv3 in the name of the victim and decrypt 1 byte per 256 requests.

Theoretically, the attack can be implemented on any service that supports SSLv3 protocol. Moreover, the attacker can intentionally force the client to connect via SSLv3 More →

Heartbleed Bug FAQ

Unfortunately, Heartbleed OpenSSL vulnerability found in April 2014 proved to be non-trivial and extremely common. Moreover, many users still have some question concerning this bug. Since the problem is still relevant, it is necessary to clear it up. Let’s ask the most important questions and try to give them simple truthful answers.

How actually dangerous Heartbleed bug is? Bruce Schneier, a recognized cryptography expert, said that it is 11 points on a scale of 1 to 10. More →

FTP, SFTP, FTPS: what is the difference?

Network protocol is a set of rules that allows to connect and exchange the data between several network enabled devices. Nowadays there are many popular network protocols, but this article is devoted to FTP and its safe releases, SFTP and FTPS.

FTP (or File Transfer Protocol) is data transfer protocol that uses a special file server that allows users to exchange text and binary files with any networked computer. After connection is set the user can upload files to the remote machine and download data to his/her local computer.

Created in 1971, FTP is one of the oldest application protocols More →