この記事を共有
Cisco Imagines Group Chats on a Blockchain in Patent Filing
A Cisco patent application describes how a blockchain could let people form groups on the fly to share files and other data while tracking membership.
著者 Nikhilesh De
Make us preferred on Google
Cisco is looking at blockchain technology as a way to make confidential group messaging easier and more secure, public filings show.
In a patent application released Thursday by the U.S. Patent and Trademark Office (USPTO), the company described how a blockchain could enable people to form groups spontaneously and share files and other information while keeping track of membership.
STORY CONTINUES BELOW
This would solve "common problems" faced by ad-hoc messaging teams, Cisco said, namely:
"how group membership is established, communicated, updated, and secured from unauthorized tampering ... in the context of dynamic, decentralized, and self-organizing groups."
The document, which was filed in December 2017, proposes using cryptographic keys shared among group participants to establish a peer-to-peer network – in other words, creating a decentralized group chat with only those members authorized to join it.
The first participant’s device would create the genesis block, and subsequent communications would generate their own blocks as each member of the conversation adds on.
The first block would “define the initial set of group members” in one possible version of this system, according to the filing.
In this version, the blockchain would specifically be used to record the group members. Subsequent blocks would chiefly record new members being added and old members being removed.
Other versions of the system could enable secure file sharing or instant messaging, according to the filing, which continued:
“In summary, presented herein is a method for achieving authorization in confidential group communications in terms of an ordered list of data blocks representing a tamper-resistant chronological account of group membership updates … There are many applications of these techniques. One such application is enabling end-to-end encryption of instant messaging, content sharing, and streamed media. This is useful in developing a protocol or application designed to enable confidential group communications.”
A previous patent application released by the USPTO showed Cisco has been looking at other use cases for blockchain technology.
In that filing, published last October, the company outlined using a blockchain network to track Internet of Things devices.
Cisco image via Sundry Photography / Shutterstock
あなたへの
KuCoin captured a record share of centralised exchange volume in 2025, with more than $1.25tn traded as its volumes grew faster than the wider crypto market.
知っておくべきこと:
- KuCoin recorded over $1.25 trillion in total trading volume in 2025, equivalent to an average of roughly $114 billion per month, marking its strongest year on record.
- This performance translated into an all-time high share of centralised exchange volume, as KuCoin’s activity expanded faster than aggregate CEX volumes, which slowed during periods of lower market volatility.
- Spot and derivatives volumes were evenly split, each exceeding $500 billion for the year, signalling broad-based usage rather than reliance on a single product line.
- Altcoins accounted for the majority of trading activity, reinforcing KuCoin’s role as a primary liquidity venue beyond BTC and ETH at a time when majors saw more muted turnover.
- Even as overall crypto volumes softened mid-year, KuCoin maintained elevated baseline activity, indicating structurally higher user engagement rather than short-lived volume spikes.
あなたへの
Here’s why bitcoin’s is failing its role as a 'safe haven' versus gold
Bitcoin behaves more like an "ATM" during uncertain times, with investors quickly selling it to raise cash.
知っておくべきこと:
- During recent geopolitical tensions, Bitcoin lost 6.6% of its value, while gold rose 8.6%, demonstrating bitcoin's vulnerability in times of market stress.
- Bitcoin behaves more like an "ATM" during uncertain times, with investors quickly selling it to raise cash, contrary to its reputation as a stable digital asset.
- Gold remains the preferred hedge for short-term risks, while bitcoin is better suited for long-term monetary and geopolitical uncertainties that unfold over years.
Top Stories
