LianAnTech Weekly Report 7/9–7/13

BEOSIN
2 min readJul 13, 2018

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Hello everyone, thank you for your kindly attention and support all along. In the past week, all works are carried out steadily in LianAn Technology. The details are shown below:

Important News

This week, LianAn Technology was selected into Smart Contract Security Audit List of Etherscan.

▲ Main Page of Etherscan

Meanwhile, Ontology, the new generation of public blockchain infrastructure and distributed trust collaboration platform, announced strategic technology cooperation with Chengdu LianAn Technology.

For more information, please refer to Medium articles:

https://medium.com/@lianan/chengdu-lianan-technology-co-ed9f414ef32

https://medium.com/ontologynetwork/lianan-technology-joins-ontologys-co-builder-plan-as-security-specialists-9864ea59c21a

On 11th of July, LianAn Technology was invited to attend the 2018 IEEE Big Data Application Conference.

CTO Wengsheng Guo represented LianAn Technology and gave speech on blockchain security.

▲CTO&Co-founder Wengsheng Guo

Vulnerability Analysis

This week, we discovered the problem on the use of constructor function when using VaaS platform to analyse smart contracts.

https://v.qq.com/x/page/t1344wir41t.html

▲VaaS Platform Scanning Steps (Note the 9th line)

The mis-use of constructor function will result in:

1. ‘Owner’ permission of the contract could be stolen by users.

2. Users could manage to increase unlimited amount of the token issued if the vulnerability is exploited. Because currently the ERC20 token contract will release the tokens to the owner account during deployment.

Community Building

At 8:00pm on 11th, CEO Xia Yang attended the online Q&A on GitChat about the VaaS smart contract formal verification platform.

Since this week, we commenced the operation of the international social media. Welcome to add us on Facebook and Twitter and get more information of our business.

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BEOSIN
BEOSIN

Written by BEOSIN

Blockchian Security · IDE · Beosin-VaaS · Formal Verification · SAS | China leading enterprise in blockchain security field

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