Ethereum Wallet to be Implement in Opera Android

Developers believe that Opera will be first big browser for Web 3.0
11 July 2018   530

Opera Software has built an Ethereum wallet in the latest version of the web browser Opera for Android. Beta testing is scheduled for July 11th.

The developers reported that Opera Crypto Wallet does not need an extension or a separate application for cryptocurrency operations, and the built-in security mechanisms on the Android system do not require the creation of new PIN codes and passwords when signing transactions. It is also stated that the wallet keys are stored only on the user's phone.

Opera Crypto supports a set of libraries API Ethereum Web3, which allows developers of decentralized applications (dapps) to interact with local or remote nodes of the network Ethereum.

Thanks to integration with Coinbase, users can pay for goods in the Opera Crypto Store from crypto wallet. Currently, the application supports Ethereum, as well as the standards of ERC-20 and ERC-721 tokens. 

The new version of the Opera browser, currently available in a private beta on Android, combines easy-to-use crypto wallet functionality with support for Ethereum decentralized apps, or Dapps. This means users can now interact with Web 3.0 using our popular and fully-featured Opera mobile browser. It also makes Opera the first major browser to introduce a built-in crypto wallet. Needless to say, we are pretty excited about this.

Charles Hamel


In the official blog, the developers of Opera said that the company has always been a supporter of Progressive Web (PWA) applications.

By allowing PWAs to use the Opera Crypto Wallet, we are now taking PWA support to the next level. This means that Dapp developers can now create native-like Dapps without having to embed a wallet on their own or relying on an external wallet app. Dapps can now be first class citizens on mobile!

Charles Hamel


In January, developers of Opera added protection from the miners to the mobile version of the popular web browser.

Ethereum VM May Have Vulnerability

The vulnerability is reported by NettaLab Twitter account
12 November 2018   129

On November 9, a statement appeared in Netta Lab’s Twitter account that the organization discovered a vulnerability in the Ethereum virtual machine that allows to execute smart contracts endlessly without paying for gas online. The researchers also allegedly turned to the operator of the American database of vulnerabilities, where they registered the corresponding discovery.

Netta Labs discovered an Ethereum EVM vulnerability, which could be exploited by hackers. The vulnerability can cause smart contracts can be executed indefinitely without gas being paied.

Netta Lab's Twitter

At Netta Lab's request, Google demonstrates the site of the project, which specializes in auditing smart contracts under the Netta Lab brand, but the Twitter accounts of the projects do not match. Note that the profile that reported the vulnerability was registered in November.

Many users expressed doubts about the authenticity of the information that appeared, but then the creator of the NEO project Da Hongwei said that he spoke with the CEO of Netta Labs and asked the researchers to audit the NEO virtual machine.

Nevertheless, Vitalik Buterin wrote on Reddit that this is a vulnerability in the Python-implementation of the virtual machine, which was first reported on GitHub 9 days ago. This means that the main clients (go-ethereum; parity and cpp-ethereum) are not affected.