Hifn holds the patents for the LZS and MPPC compression algorithms. LZS is Lempel-Ziv Stac and is an industry standard for lossless data compression for both networking and storage. LZS is specified in the Cisco IOS stack.
Hifn was the first company to offer a processor with integrated encryption and compression in 1998, and followed this in 1999 with the world's fastest security processor for VPNs.
In 2000, Hifn invented an Intelligent Packet Processor - a security co-processor capable of not just performing raw algorithm processing, but of modifying the complete packet, allowing their processors to transform an IP packet into an IPSec packet in a single pass in the security processor with only the Policy and IPSec Stack being required on the host CPU.
They were the first to offer a security processor featuring the new AES agorithm in 2001.
In 2004 they followed on from their Packet Processor with a complete IPSec protocol processor - an Inline processor capable of performing the entire IPSec and IKE processing with no CPU intervention required. They also adapted this processor for the SAN market, for applications such as iSCSI.
In earlier 2004, Hifn acquired part of IBM Network Processor assets in addition to PowerNP's intellectual property license. Since then Hifn became the sole vendor of PowerNP (IBM code: Rainier) to a couple of telecom/datacom equipment industrial players.