Tag: blockchain

03
Oct
2020
Posted in technology

New Ucam security camera is powered by the blockchain

Silicon Valley,CA-based open source platform IoTeX wants to extend the concept of the Internet of Things and bring its vision alive for the Internet of Trusted Things. And it is using the blockchain to bring privacy to your security.

Hacks of internet connected devices such as Ring and Nest have made consumers increasingly wary of adequate security due to insufficient emphasis on security and privacy for these types of devices

It has partnered with Shenzen, China-based specialist camera manufacturer Tenvis to co-develop the Ucam security camera.

The Ucam applies blockchain, end-to-end encryption, and edge computing technology so that users can own, control, and share the videos captured by their Ucam to guarantee that access to their camera is impossible.

With Ucam, all computing is done locally on the Ucam device or the user’s mobile phone, removing the need for centralized servers. When in transit, data is end-to-end encrypted using a blockchain private key that is owned exclusively by the user and impossible to crack.

This is in contrast to most devices and apps today, where logins and relevant processing are done on a centralized server where all user data is decrypted and potentially visible to anyone who can access the server.

Corporations having access to our decrypted data is a huge risk to our privacy, which is magnified when that data contains real-time footage inside our homes.

The blockchain is not used to store any Ucam videos but is used for three core purposes: Secure login, verifiable privacy and video sharing. A weak 8-character password takes a few hours to crack, a strong 10-char password takes a decade, while a blockchain private key takes 10^24 years.

Ucam’s user-owned, uncrackable private key, prevents the two most common types of camera hacks today: brute force password hacks and cross-pollination of data breaches

30
Sep
2020
Posted in technology

Data61 and Monash claim quantum-safe and privacy-preserving blockchain protocol

The Commonwealth Scientific and Industrial Research Organisation’s (CSIRO) Data61 has announced alongside the Monash Blockchain Technology Centre a blockchain protocol they claim is secure against quantum computers while also protecting the privacy of its users and their transactions.

The protocol, MatRiCT, is patented by CSIRO and now licensed to Australian cryptocurrency developer HCash.

Hcash will be incorporating the protocol into its own systems and transforming its existing cryptocurrency, HyperCash, into one that is claimed to be quantum safe and privacy protecting, but according to Data61, the technology could be applied to more than cryptocurrencies.

It highlighted potential applications such as digital health, banking, finance, and government services, as well as services which may require accountability to prevent illegal use.

Data61 researchers said blockchain-based cryptocurrencies like Bitcoin and Ethereum are vulnerable to attacks by quantum computers, as they are capable of performing complex calculations and processing substantial amounts of data to break blockchains.

“Quantum computing can compromise the signatures or keys used to authenticate transactions, as well as the integrity of blockchains themselves,” research fellow at Monash University and Data61’s Distributed Systems Security Group Dr Muhammed Esgin said.

“Once this occurs, the underlying cryptocurrency could be altered, leading to theft, double spend or forgery, and users’ privacy may be jeopardised.

“Existing cryptocurrencies tend to either be quantum-safe or privacy-preserving, but for the first time our new protocol achieves both in a practical and deployable way.” 

See also: How blockchain will disrupt business (ZDNet/TechRepublic special feature) | Download the free PDF version (TechRepublic)

MatRiCT is based on “hard lattice problems”, which are quantum secure, and introduces three features: The shortest quantum-secure ring signature scheme to date, which Data61 said authenticates activity and transactions using only the signature; a zero-knowledge proof method, which it said hides sensitive transaction information; and an auditability function,

30
Sep
2020
Posted in technology

Singapore touts blockchain use in COVID-19 data management



shape: Can Blockchain be the answer to healthcare related data management issues? Image: Cointelegraph


© ZDNet

Can Blockchain be the answer to healthcare related data management issues? Image: Cointelegraph


Singapore has developed a blockchain-powered application touted to better manage and secure medical records. Enabling healthcare data to be stored in a digital wallet, the software has been used in a pilot in which COVID-19 discharge memos have been verified more than 1.5 million times. 

Government-owned investment firm SGInnovate and local startup Accredify jointly developed the “digital health passport” to support the management of medical records. Work on the application had begun in May during the height of the global pandemic, when SGInnovate roped in Accredify on the project. The Singapore startup specialises in document lifecycle management products, including document management and verification. 

Funded by the Ministry of Finance, SGInnovate focuses its investment on deep tech startups that work on emerging technologies such as artificial intelligence, quantum technology, and medical technology. 



a circuit board: Key takeaways from Singapore healthcare data breach


© Provided by ZDNet
Key takeaways from Singapore healthcare data breach

No system is infallible and cybersecurity breaches are inevitable, but Singapore needs to do better in mitigating the risks and following through on its pledge to safeguard citizen data.

The newly developed digital health passport is touted to enable personal medical documents to be stored in a digital wallet, secured with blockchain technology, for easy access and verification. It also digitises medical documents for distribution such as COVID-19 discharge memos and swab results, helping to streamline the workflow of healthcare services providers. 

This feature bypasses the need for paper-based documents, which are difficult to manage and  easily replicated, lost, or misplaced, the organisations said in a joint statement Wednesday. The application is built on the OpenAttestation platform, which was developed by the Singapore government’s CIO office, GovTech, as an open source framework to notarise documents using blockchain.

“Digital Health Passport leverages blockchain