Berkshire Hathaway reported major stock sales last quarter. That includes a further reduction in one of Berkshire's top holdings. Individual investors should take note of Buffett's current caution. 10 ...

Abstract: With the rapid development of cloud storage services and IoT environment, how to securely and efficiently search without compromising privacy has been an indispensable problem. In order to ...

Abstract: To solve the problem of blockchain interoperability, we propose an efficient decentralization oracle solution. We design a subgroup Schnorr multisignature for the off-chain aggregation ...