Ethereum’s smart contracts are full of holes

-

Blockchain-powered computer programs promise to revolutionize the digital economy, but new research suggests they’re far from secure.

Computer programs that run on blockchains are shaking up the financial system. But much of the hype around what are called smart contracts is just that. It’s a brand new field. Technologists are just beginning to figure out how to design them so they can be relied on not to lose people’s money, and—as a new survey of Ethereum smart contracts illustrates—security researchers are only now coming to terms with what a smart contract vulnerability even looks like.

Comments

Post a Comment

Popular posts from this blog

Oracle Beats Google Big in Court; Debuts Admin-Free Database

-
Image
Yesterday's ruling by the U.S. Court of Appeals for the Federal Circuit reversing a jury decision on Google's use of Oracle's Java API packages "protects creators and consumers from the unlawful abuse of their rights," according to a statement from Oracle general counsel Dorian Daley.However, advocates of fair use in copyright law say yesterday's ruling could cost Google $9 billion in damages as well as put a deep chill on future tech innovation. The Electronic Frontier Foundation (EFF), a digital rights organization, called the reversal "a surprising decision that should terrify software developers." As Oracle yesterday welcomed the opportunity to revive its original 2010 complaint against Google, it also unveiled a new service that's the first based on its "self-driving" Oracle Autonomous Database. The Oracle Autonomous Data Warehouse Cloud automates database administration and management tasks for enterprise customers, and is bei...
Read more

Report: Apple Developing MicroLED Screens for Wearables and AR

-
Image
I n-house development teams at Apple are reportedly working on a new type of display technology -- microLED -- that could soon appear in some of the company's high-end wearables, such as the Apple Watch, as well other devices. Citing unnamed "people familiar with the situation," Bloomberg last month reported that Apple is producing a small number of microLED test screens at a secret factory near its headquarters in Cupertino, Calif. That report was backed up by new research this week from Digitimes, which said Apple is developing both small- and large-screen microLED displays that could be used in the Apple Watch (pictured above), wearables with augmented reality, and Mac devices. MicroLED technology promises to deliver even higher-quality images than today's leading display tech, the OLED (organic light-emitting diode). Still in the early stages of development, microLED displays use tiny, individual LEDs to produce individual pixels in an image and are more ener...
Read more

SIMPLE CONTACT SYSTEM IN C++ by Ayoola Felix '

-
Create a program in C++ that simulates a simple contact manager application given the following requirements: 1. The program is to store individual names and associated telephone numbers in parallel arrays. 2. The program should input from the user 10 people’s names and their telephone numbers and add the data to the parallel arrays. 3. When data input is finished, the program should sort both data arrays in ascending order based on telephone numbers maintaining the associations between names and telephone numbers. 4. The program will print the list of users and their telephone numbers after sorting. 5. After printing the list, the program will ask for a name to search for. 6. The user will then enter a name. 7. The program will then search for the name and print the name and the associated telephone number for that person. 8. If the person is not in the array, the program will print that the user cannot be found. SOLUTION #include <iostream> #include <al...
Read more