Session Key
Intercept

A Better Way For Modern TLS Decryption

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Table of Contents
  • What is SKI Decryption?
  • How Does SKI Work?
  • How does SKI re-enable Decryption for Passive Systems?
  • How does SKI activate Decryption for Inline Systems?

SKI Decryption Started with TLS, Expanded to SMB, and now Ransomware.

Nubeva's foundational SKI product was developed to fill a growing gap facing network inspection. While the technology started here, it has expanded to other use cases, including the ability to discover and extract ransomware encryption keys to enable instant decryption and restoration. While the use case is different,  the concept is similar.

Explore SKI for TLS Decryption. 

The ability to fully inspect network packets for cybersecurity and application assurance is vital for enterprises and service providers. Over recent years, traditional decryption methods have seen growing capability gaps and operational complexities. For technologies with DPI services, these issues reduce product capability, raise operating costs, slow sales velocity, and increase support requirements. The industry needs an answer. Nubeva SKI offers a new simple approach to enable solution providers and the enterprises they support.

What is SKI (Session Key Intercept)?

Nubeva SKI is a powerful, new approach to decrypt modern TLS (SSL) traffic. With the advancements in today’s application, computing, and networking environments, SKI delivers a leap forward in capability and performance to quickly enable cybersecurity and application monitoring systems. SKI is employed both as an augmentation to legacy forward and reverse-proxy engines or as a fix to passive intercept systems due to pending obsolescence from Perfect Forward Secrecy.

Nubeva SKI Delivers:

The Decryption of Any TLS for Passive and Inline systems

  • TLS 1.3, 1.2 with PFS, and legacy 1.2, 1.1, 1.0
  • TLS 1.3 handshakes
  • Pinned Certificates
  • MTLS/Client Certificates
  • Traffic to foreign/3rd Parties internet and cloud services
  • Encrypted SNI (eSNI) and TLS 1.3 Handshakes

 

For Any Environment and Traffic Flow

  • Metal, VM’s, Containers, Kubernetes, and microservice architectures (including Services Mesh Architectures)
  • Datacenter, Cloud, Hybrid
  • Servers, Clients, IOT
  • Inbound, outbound, and east-west sessions

How Does Session Key Intercept (SKI) Work?

SKI provides the ability to GET SESSION KEYS from TLS clients and servers in real-time and to USE SESSION KEYS to decrypt TLS on authorized systems to enable deep packet inspection.

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With session keys available, one can decrypt any session with simple and efficient bulk decryption. As such, SKI is universal to all traffic flows and use cases and applications: inbound, outbound, east-west, clients, servers, data center, cloud. Since TLS session keys are symmetric (shared by both endpoints), keys only need to be obtained from one side of a connection and therefore can apply to client connections to foreign servers and services.

The idea of getting and using keys is not a completely new concept. Keylogging, typically used by DevOps/SecOps and in some commercial systems has been widely used for a long time but is not a viable solution for scaled and secure mission-critical use. With SKI, Nubeva has taken the basic idea of keylogging and delivered an enterprise-grade, complete solution for modern TLS visibility.

Unlike legacy man-in-the-middle/forward proxy, session pre-termination/reverse proxy, and RSA Passive Intercept, SKI does not involve certificates or server keys, nor does it manipulate or change traffic, connections, authentication, or PKI. Instead, it simply works with the individual TLS session encryption keys (aka, ephemeral, symmetric, or bulk encryption keys) that are developed during the handshake, shared by the TLS client and servers, used for the bulk encryption/decryption of the communication, then discarded.

SKI for Passive Inspection Systems

The Nubeva SKI solution represents a breakthrough solution to modern TLS Decryption for the application monitoring and assurance industry. SKI can passively decrypt PFS-based traffic as well as traffic to external servers and services and thus re-establishes the out-of-band decryption option for the industry. SKI delivers high-speed, low-cost decryption of all TLS encrypted traffic from any standard passive traffic source (taps, mirrors, SPANs, PCAP files) in any environment (physical, virtual, on-prem, or cloud). SKI is delivered as a modular and comprehensive suite of software components that can be quickly and easily integrated into any system. Add SKI to solve the decryption challenge for customers and sales teams, and to (re)enable high-value deep packet inspection features and functionality for more effective security solutions.

SKI for Inline Systems

The Nubeva SKI solution represents a breakthrough solution to modern TLS Decryption for the application monitoring and assurance industry. SKI can passively decrypt PFS-based traffic as well as traffic to external servers and services and thus re-establishes the out-of-band decryption option for the industry. SKI delivers high-speed, low-cost decryption of all TLS encrypted traffic from any standard passive traffic source (taps, mirrors, SPANs, PCAP files) in any environment (physical, virtual, on-prem, or cloud).   SKI is delivered as a modular and comprehensive suite of software components that can be quickly and easily integrated into any system.  Add SKI to solve the decryption challenge for customers and sales teams, and to (re)enable high-value deep packet inspection features and functionality for more effective security solutions.

Solution Exploration

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SWG and
SASE
Nubeva SKI for Secure Web Gateway and Secure Access Service Edge Systems
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APM
Systems
Nubeva SKI for Passive Application Monitoring Systems
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NGFW and
IPS
Nubeva SKI for Next-Generation Firewalls and Intrusion Prevention Systems
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IDS and
NDR
Nubeva SKI for IDS and NDR Systems
inspection
HIDS and
HIPS
Nubeva SKI enables HIDS, HIPS, and other agent-based solutions to Provide Evolved TLS Inspection
sandbox
Sandbox and
APT
Nubeva SKI for Sandbox and Advanced Persistent Threat Detection
host-based
Network Packet Broker
Nubeva SKI for Network Packet Brokers and other Dedicated Decryption Systems
sanbox-apt
PCAP
Stores
Nubeva SKI for PCAP Stores, Network Forensics and Troubleshooting
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5G Monitoring
Systems
Nubeva SKI for 5G Monitoring Systems

Nubeva Commercialized the SKI Concept with a Universal and Flexible Product Suite

Our solution is available as a combination of source-code and object-code for flexibility and speed.
Nubeva is built with leading-edge technology to solve problems.

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