Tools Challenged by SSL Decryption?

Eliminate blind spots from your network – your Zero Trust Architecture demands it.

SSL/TLS as a Potential Threat Vector

SSL/TLS encryption is rising as enterprises deploy more software to private and public clouds and making wider use of software-as-a-service (SaaS) applications. In fact, 80 percent of internet traffic will be encrypted by the end of 2019.[1]

Unfortunately, encryption isn’t limited to well-meaning parties. Consider that 60 percent of malware is cloaked in encrypted traffic.[2] Cybercriminals use encryption to conceal malware, hide command-and-control traffic and cloak the exfiltration of stolen data.

Given the amount of encrypted traffic, the threat vector it now poses and the importance of traffic inspection for a Zero Trust Posture, you need a way to efficiently decrypt SSL traffic, share it with tools and then re-encrypt it.

What is SSL Decryption/TLS Decryption?

To protect vital data, businesses and other organizations implement Transport Layer Security (TLS), commonly referred to as the superseded Secure Socket Layer (SSL), to encrypt data as it is exchanged over IP networks. SSL/TLS creates a secure channel between the server and the end users’ computer or other devices as they exchange information over the internet.

TLS is an industry standard based on a system of trusted rules and certificates issued by certificate authorities and recognized by servers. SSL was replaced by the TLS standard in 2015.

While protecting data, encryption also blinds network security and application monitoring tools. The decryption of SSL/TLS traffic is crucial for these tools. However, it is extremely computationally intensive and can introduce network latency.

The best architecture minimizes the decryption required to inspect all relevant traffic while offering legal and privacy controls. The centralized approach to decrypting SSL offered by Gigamon, decrypt once and feed all tools, provides such an architecture.


Decrypt Once and Scale Your Security Stack

SSL Decryption is critical to securing today’s enterprise networks due to the significant growth in applications and services using encrypted traffic. Malware increasingly uses SSL/TLS sessions to hide, confident that security tools will neither inspect nor block its traffic. When that happens, SSL/TLS sessions can become a liability, inadvertently camouflaging malicious traffic. In other words, the very technology that makes the Internet secure can become a significant threat vector.

Enabling SSL decryption uses the root certificate on client machines, acting as Certificate Authority for SSL requests. This process makes it possible to decrypt, perform a detailed inspection, and then re-encrypt SSL traffic before sending it off to its destination. This helps ensure that only authorized SSL traffic is entering the network, and that malware hidden in SSL/TLS sessions is exposed and dealt with.

GigaSMART Decryption

GigaSMART® SSL/TLS Decryption is a licensed application that enables information security, NetOps and applications teams to obtain complete visibility into SSL/TLS traffic regardless protocol or application, so that they can monitor application performance, analyze usage patterns and secure their networks against data breaches and threats using encrypted communications.  Gigamon supports both inline/Man in the middle and passive/out-of-band decryption of SSL/TLS, meeting the diverse needs of your organization.

  • SSL/TLS detection on any port or application
  • 10 Mb to 100Gb interface support
  • Decrypt once, share with any tools as many times as you need
  • Strong crypto support including Diffie-Hellman Ephemeral, Elliptic Curves, Poly1305/ChaCha20
  • Power controls over certificate validation, extending Certificate Revocation Lists and Online Certificate Status Protocol (OCSP)
  • Integration with the Venafi Trust Protection Platform™ to centralize key management and validation
  • Meet privacy and compliance requirements: included support for URL categorization

Take advantage of our new bundled GigaSMART apps and stay secure!

Benefits of SSL Decryption on Different Architectures

Traditional inline decryption technologies have limitations over inline decryption on a Security Delivery Platform. Firewalls and web security gateways decrypt SSL/TLS traffic but often cannot deliver that decrypted traffic to other monitoring and security tools. Likewise, load balancers are good at terminating SSL/TLS traffic and load balancing to servers but lack the ability to distribute this traffic to multiple inline security tools prior to re-encryption. Lastly, these solutions lack the traffic selection controls to forward non-encrypted traffic at line rate and often send all traffic to the decryption engine, creating performance challenges.

capacity GigaSMART SSL Decryption Firewall Load Balancer Standalone Decryptors
Enhances existing security tools by centralizing and offloading SSL decryption and re-encryption. Y/N Y/N Y/N Y/N
Exposes hidden threats, data exfiltration and malware. Y/N Y/N Y/N Y/N
Supports flexible arrangements of inline security tools with automated resiliency against failures. Y/N Y/N Y/N Y/N
Respect data privacy compliance with policy-based selective decryption. Y/N Y/N Y/N Y/N
Service chain multiple traffic intelligence applications (e.g. packet slicing, masking, de-duplication, Adaptive Session Filtering). Y/N Y/N Y/N Y/N


Encrypted Threats are Lurking in Your Traffic

Accelerate detection and response with SSL/TLS decryption.


SSL/TLS Decryption

Scalable, automatic visibility and management of SSL/TLS traffic.


Inline SSL Decryption

Instructions for deploying Inline SSL on GigaVUE-OS within an enterprise network.

Kwizda Locks Down Networks with Latest Encryption

Training: SSL Decryption

Learn about Gigamon Inline SSL Decryption from the leader in visibility.

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Don't let malware hide in encrypted traffic.

[1] Google. “HTTPS encryption on the web.” Google Transparency Report. Accessed April 25, 2019.

[2] Desai, Deepen. “SSL/TLS-based Malware Attacks.” Zscaler. August 2, 2017. Accessed April 25, 2019.