Blockchain 

Amazon Web Services Announces Cryptography-Using Quantum Ledger Database

Amazon Web Services, Inc., an Amazon.com company, announced that the Amazon quantum ledger database (QLDB) was now available. Transparent and immutable transaction log According to a post on Sept. 10 from Amazon Web Services (AWS), the newly available Amazon QLBD is a new class of database that provides a transparent, immutable and cryptographically verifiable transaction log ‎owned by a central trusted authority. The post continues to explain that Amazon QLBD eliminates the need to engage in the complex development effort of building one’s own ledger-like applications or rely on the…

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Blockchain 

David Chaum Says His New Cryptocurrency Is Quantum Computer Resistant

E-cash inventor David Chaum has unveiled yet another cryptocurrency which he says is resistant to quantum computer attacks.  Chaum plans for quantum armageddon In a blog post issued Aug. 20, Chaum championed the new offering, Praxxis, which has seen a six-month development process.  The new blockchain follows on from Chaum’s Elixxir project, which debuted in September last year, and is intended to interact closely with its framework.  “The Praxxis consensus protocol simultaneously overcomes the scalability, privacy, and security challenges faced by legacy blockchains, the ‘trilemma’, to deliver the ‘purely peer-to-peer…

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Blockchain 

Quantum Computing Vs. Blockchain: Impact on Cryptography

The major selling point of blockchain and its applications is that cryptographically secured distributed ledgers are virtually “unbreakable” under normal circumstances, given the current state of computational technology. Its validity, however, is heavily dependent on the “state of technology” assumption. Should a paradigmatic shift in computing occur, contemporary blockchain-based systems may become vulnerable to threats not accounted for in their design. But how urgent is the threat of this happening any time soon? The strides that physicists have been making for the last three decades toward building an operational quantum…

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Bitcoin 

Firefox Quantum Offers Anti-Cryptojacking Feature

Firefox Quantum, the latest version of open-source internet browser Firefox, has a new privacy toggle that protects against cryptojacking, according to a blog post by Mozilla on May 21. Mozilla previously warned official blog post that websites can deploy scripts that launch a crypto miner on a user’s machine without them being aware — a practice known as cryptojacking. To combat these exploitative practices, Mozilla partnered with online privacy company Disconnect to create a crypto mining blocker for their browser. Users can now toggle an opt-in feature, that purportedly blocks…

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Blockchain 

Amazon Announces Two Blockchain-Related Products; Quantum Ledger and Managed Blockchain

E-commerce giant Amazon announced the debut of two new services, Amazon Quantum Ledger Database (QLDB) and Amazon Managed Blockchain, according to a press release shared with Cointelegraph Nov. 28. QLDB is a ledger database designed to provide transparent, immutable, and cryptographically verifiable log of transactions, which is overseen by a central trusted authority. All changes are purportedly recorded on chain, while the new product is also able to automatically scale and execute two to three times more transactions than already existing products. Andy Jassy, the CEO of Amazon Web Services…

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