Keyless Signature Infrastructure

Keyless Signature Infrastructure (KSI)Quantum Key Distribution Quantum key distribution (QKD) uses quantum mechanics to secure a communication channel. It enables two different parties to develop a shared random secret key known only to them, which can then be used to encrypt and decrypt messages. What makes quantum key distribution unique is its ability to enable the two communicating users to detect unwanted attempts at trying to gain knowledge of the key. This ability is supported by a fundamental aspect of quantum mechanics: the process of measuring a quantum system in general disturbs the system. If an attacker is trying to eavesdrop on the key, the attacker must in some way measure it, thus introducing detectable anomalies.... is designed to provide scalable digital signature based authentication for electronic data, machines and humans. KSI uses only hash-function cryptography, allowing verification to rely only on the security of hash-functions and the availability of a public ledgerCentral Ledger A central ledger refers to a ledger maintained by a central agency. Also known as a general ledger. commonly (blockchainBlockchain Computing System A Blockchain computing system treats the Blockchain as a secure computation platform that can be shared among multiple vendors.).