What is Certification Authority Authorization?
September 25, 2013 by Rick Andrews CAA IETF Policy SSL/TLS
DNS Certification Authority Authorization (CAA), defined in IETF draft RFC 6844, is designed to allow a DNS domain name holder (a website owner) to specify the certificate signing certificate(s) authorized to issue certificates for that domain or website. Usually, the certificate signing certificate will belong to the Certification Authority (CA) that issues SSL certificates to you. It’s a way for you to indicate which CA or CAs you want to issue certificates for your domains.
It’s Time for TLS 1.2
September 19, 2013 by Wayne Thayer Attack BEAST Chrome Firefox OCSP RC4 SHA2 SSL 3.0 SSL/TLS TLS 1.0 TLS 1.1 TLS 1.2 Vulnerability
In a previous post titled Getting the Most Out of SSL Part 2, we touched on the recommendation that Web servers be configured to prefer Transport Layer Security (TLS) version 1.2. With the planned release of Firefox 24 and recent release of Chrome 29 adding support for TLS 1.2, now is a great time for website administrators to make the switch. Transport Layer Security was formerly called Secure Sockets Layer (SSL) and is the protocol that enables secure “https://” connections to websites.
Encryption Still Works – It’s About How You Implement It
September 13, 2013 by Ben Wilson ECC Encryption Malware RSA SHA1 SHA2 SSL/TLS TLS 1.1 Vulnerability
The September 5th joint article by the New York Times and Guardian newspapers on NSA’s and GCHQ’s efforts to circumvent encryption implementation have left many people speculating on the security of the data they are transmitting over the Internet. Hopefully, this blog post will provide some guidance and help understand SSL in light of these recent articles. Importantly, the articles point out that the primary means of attacking SSL/TLS do not exploit a vulnerability in the protocol itself but instead aim to exploit poor implementations of the protocol, insecure servers, and weak cryptography.
What Is Certificate Transparency and How Does It Propose to Address Certificate Mis-Issuance?
September 9, 2013 by CA Security Council Attack Mis-issued OCSP Revocation SSL/TLS TSA
As originally architected by Netscape and others in the mid-1990s, the certificate issuance process envisioned that the CA would present the certificate and its contents to the named subject who would review and accept the certificate first. Then the CA would publish the certificate to a repository. That process would establish that the certificate’s subject was aware of certificate issuance. (Otherwise, an unscrupulous CA could sign a subscriber’s public key and create a certificate for the subscriber without its knowledge.
Public Key Pinning
August 28, 2013 by Bruce Morton (Entrust) Android Chrome Google IETF Mis-issued SHA1 SSL/TLS
The current browser-certification authority (CA) trust model allows a website owner to obtain its SSL certificate from any one of a number of CAs. That flexibility also means that a certificate mis-issued by a CA other than the authorized CA chosen by the website owner, would also be accepted as trustworthy by browsers. This problem was displayed most dramatically by the DigiNotar attack in 2011 and in a mistaken CA certificate issued by TURKTRUST in 2012.
Firefox 23 Blocks Mixed Content
August 13, 2013 by Wayne Thayer Chrome Encryption EV Firefox Google Malware Mixed Content Mozilla SSL/TLS
The latest version of the Firefox Web browser from Mozilla was released on August 6th with a great new security feature called a “mixed content blocker”. In a nutshell, this feature ensures that all of the parts of a secure Website are indeed encrypted via SSL certificates. All of the data on the website is prevented from being intercepted, and it becomes more difficult to add malware into the site’s content.
What Are the Different Types of SSL Certificates?
August 7, 2013 by Dean Coclin DV Encryption EV Identity Phishing SSL/TLS
Domain Validation (DV) A Domain Validated SSL certificate is issued after proof that the owner has the right to use their domain is established. This is typically done by the CA sending an email to the domain owner (as listed in a WHOIS database). Once the owner responds, the certificate is issued. Many CAs perform additional fraud checks to minimize issuance of a certificate to a domain which may be similar to a high value domain (i.
Getting the Most Out of SSL Part 3: Optimization
July 29, 2013 by Rick Andrews, Ryan Hurst MITM Mixed Content SSL/TLS
To get the most out of SSL/TLS, you need to do a bit more than just configure your web server with an SSL certificate. The information below will help you optimize your website’s use of SSL. Making the changes suggested below will also help move your site towards “Always On SSL” (https://otalliance.org/resources/AOSSL/index.html), a best practice in which you serve the entire contents of your website over SSL/TLS. Changes to the content of your website Some HTML tags can include attributes that are links or paths to other pages on your site.
Getting the Most Out of SSL Part 2: Configuration
June 29, 2013 by Ryan Hurst Attack CASC DH Forward Secrecy OpenSSL PKI RC4 RSA SSL/TLS TLS 1.0 TLS 1.2 Vulnerability
They say the most complicated skill is to be simple; despite SSL and HTTPS having been around for a long time, they still are not as simple as they could be. One of the reasons for this is that the security industry is constantly learning more about how to design and build secure systems; as a result, the protocols and software used to secure online services need to continuously evolve to keep up with the latest risks.
5 Tips for SMBs to Help Secure Their Online Presence
June 17, 2013 by CA Security Council CASC Identity Malware SSL/TLS Vulnerability
With National SMB Week upon us, the CASC has come up with its five tips for SMBs to help secure their online presence. By implementing these simple steps SMBs can build trust and loyalty by ensuring their website is safe to visit, search, enter personal information, or complete a transaction. Create unbreakable passwords – Strong passwords are essential on any account related to your online presence (domain registrar, hosting account, SSL provider, social media, PayPal, etc.