Tag: ethereum

erc20 rsk openzeppelin logos

ERC20 Token Development on RSK with OpenZeppelin and Web3.py

Andres Bachfischer9 Comments

Reading Time: 7 minutes

In my last article, I’ve shown you how to make a Solidity ERC20 Token for the RSK Mainnet, how to import and use OpenZeppelin libraries and contracts, and how to use Truffle to deploy and interact with our contract.

Although we succeeded in our quest and accomplished our objectives using Truffle, eventually this suite might present failures when you are sending transactions, deploying or managing accounts. In our case, while following the previous article instructions, I’ve had problems managing newly created accounts in Truffle and sending transactions.

erc20 rsk openzeppelin logos

ERC20 Token Development on RSK with OpenZeppelin

Andres Bachfischer10 Comments

Reading Time: 8 minutes

In the last article, we have seen how to build an RSK node in our computer, select the proper network for development, configure Truffle to connect and deploy our future contracts, add accounts to our node and obtain funds to use them to pay the gas.

You should have now your node in the selected network fully synced, and at least one account with funds configured in the truffle and RSK node config files for our deployments.

In this article, we’ll be discussing deployment and interaction of Smart-Contracts over the RSK network. Our contract will be an ERC20 Token, based on the OpenZeppelin libraries, and we will deploy it directly into the Mainnet.

Security Auditing: Beware of Duplicated Storage in Solidity Smart Contract Development

Ismael Bejarano2 Comments

Reading Time: 2 minutes

Solidity semantics are confusing for smart contract developers with experience in traditional programming languages. This semantics can lead to security issues like the one we found in a recent smart contract security audit we did. The following code caught our attention: In the above code, the create method stores the same information in two different […]

Fast Smart Contracts Execution in an Ethereum Private Blockchain Development Environment

Pablo YaboNo Comments

Reading Time: 1

We describe a geth source code change which enables faster block mining. We hope this option will be included in Ethereum command lines. Private Ethereum blockchains may be deployed by private entities to use in production or in the software development process. There are different ways of speeding the development environment. Some developers choose an […]

Quantum Resistant Public Key Exchange: The Supersingular Isogenous Diffie-Hellman Protocol

Hartwig Mayer1 Comment

Reading Time: 1

Synopsis of our full article: Though the research on quantum computers is still facing big challenges, there is also some progress in this field. The National Institute of Security and Technology (NIST) recently published a report on Post-Quantum Cryptography which informs about new developments. They believe that it is time to think of quantum-safe primitives, […]

Interdependent Transactions in Bitcoin, RSK and Ethereum

Sergio LernerNo Comments

Reading Time: 6 minutes

A recent paper titled The Blockchain Anomaly presents the difficulties the authors encountered when trying to make two transactions interdependent such that the second transaction cannot be executed without the first being confirmed. Although the paper may be useful as a guide, the title is misleading since Bitcoin does not guarantee the order of transactions (no […]

ECDSA Security in Bitcoin and Ethereum: a Research Survey

Hartwig MayerNo Comments

Reading Time: 1

Elliptic curve cryptography is becoming more and more popular. One of its main supporters is the cryptocurrency system Bitcoin which uses an elliptic curve scheme for their digital signatures. Smaller key size, a more efficient implementation than the RSA system, and a similar level of security make elliptic curve cryptography an interesting alternative to RSA. […]