Is it possible to search HTTPS messages using homomorphic encryption?

We’re trying to build a packet sniffer that can search and quarantine malware in encrypted transactions without decrypting said transactions.
At present, we’re exploring whether homomorphic encryption schemes can help us look for patterns … Continue reading Is it possible to search HTTPS messages using homomorphic encryption?

As homomorphic encryption gains steam, experts search for standards

Encryption has always been a battle line in cyberspace. Attackers try to break it; defenders reinforce it. The next front in that struggle is something known as homomorphic encryption, which scrambles data not just when it is at rest or in transit, but when it is being used. The idea is to not have to decrypt sensitive financial or healthcare data, for example, in order to run computations with it. Defenders are trying to get ahead of attackers by locking down data wherever it lies. The latest step in homomorphic encryption’s decade-long journey from dream to adoption was a standards meeting over the weekend of representatives from Google, Intel, and Microsoft, along with academics from around the world. While previous meetings focused on the specifics of algorithms, this fourth meeting included more talk of pursuing homomorphic encryption standards at a handful of global bodies, according to Intel’s Casimir Wierzynski, who […]

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Can the person who decrypts a homomorphically encrypted value know what operations were run?

I’m looking at the SEAL library but I’m trying to figure out what happens in a certain use case.

For example:

Alice encrypts the number 123456 homomorphically and sends it to Bob.
Bob does adds 25 and does a left rotation … Continue reading Can the person who decrypts a homomorphically encrypted value know what operations were run?

From the NSA to Silicon Valley, a new kind of encryption is going commercial

Encryption as we know it is on the brink of a major advancement: Mathematics teams at IBM, Intel, Microsoft and a range of startup firms are pushing ahead with research that could make it possible for technology companies to encrypt data while it’s in use. This kind of security, known as homomorphic encryption, would mark a significant upgrade over current forms of encryption, which secure data while it’s stored or while it’s moving through a connection. Homomorphic encryption would better protect users who are using internet searches and accessing stored credit numbers as well as businesses that are sharing proprietary data as part of information sharing programs. The protocol was developed in part by U.S. National Security Agency researchers looking for a way to quickly search or transmit classified material without sacrificing security. It’s since become the focus of security-minded investors. “We think that whoever cracks homomorphic encryption is going […]

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