keyless signature infrastructure (KSI)

See the following -

Blockchain Startup to Secure 1 Million e-Health Records in Estonia

Daniel Palmer | CoinDesk | March 3, 2016

Data security startup Guardtime has announced a partnership with the Estonian eHealth Foundation that will see it deploy a blockchain-based system to secure over 1 million patient healthcare records. Under the deal, the foundation will integrate Guardtime's keyless signature infrastructure (KSI) blockchain into the foundation's Oracle database engine to provide "real-time visibility" into the state of patient records...

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Connecting Patient Data Solving Healthcare Interoperability and the ONC Blockchain Challenge

Peter B. Nichol | CIO | August 24, 2016

Interoperability is an old concept dating back to the eighth century BC. Society has been struggling for centuries with the idea of combining individual parts or components to create a whole unit. However, interoperability with healthcare only came about in published works 23 years ago, in 1993. More recently, in 2013, HIMSS defined of healthcare interoperability as “the ability of different information technology systems and software applications to communicate, exchange data and use the information that has been exchanged”...

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Estonian Government, Guardtime Accelerate Adoption of Blockchain Technology to Secure 1M Patient Health Records

Press Release | Guardtime | March 3, 2016

Guardtime, the first and only platform for ensuring the integrity of data and systems at industrial scale, today announced a partnership with the Estonian eHealth Foundation to accelerate blockchain-based security, transparency, auditability and governance for the lifecycle management for patient healthcare records. Guardtime will also bring their Keyless Signature Infrastructure (KSI) technology to all levels of Estonian eGovernment infrastructure through a frame cooperation agreement with the Estonian Information Systems Authority (RIA)...

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Guardtime Secures Over a Million Estonian Healthcare Records on the Blockchain

Bylan Allison | IBTimes | March 3, 2016

Guardtime, a cyber-security provider that uses blockchain systems to ensure the integrity of data, is partnering with the Estonian e-Health Authority to secure over a million health care records. Guardtime uses Keyless Signature Infrastructure (KSI), a blockchain technology that provides massive-scale data authentication without reliance on centralised trust authorities. Unlike traditional approaches that depend on asymmetric key cryptography, KSI uses only hash-function cryptography, allowing verification to rely only on the security of hash functions and the availability of a public ledger...

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