Скачать или смотреть CVM v.s. EVM for the Scrypt Algorithm

A common scenario for e-commerce applications is to accept multiple cryptocurrencies, including the bitcoin, as payments.

That requires the smart contract for the e-commerce application to be able to verify bitcoin transactions. A key step in the verification process is to compute the transaction’s block header using the scrypt algorithm.

Scrypt currently is nearly impossible on Ethereum as it required 370 million units of gas, which is about 1 ETH under normal gas price. It is far more expensive than anyone is willing to pay for this. And even if cost is not an objection, each Ethereum block can only consume 8 million units of gas, making it impossible to run scrypt in a single transaction.

Vitalik wrote a blog post about it, and there is a 5000 ETH bounty for this problem that remains unclaimed. The scrypt operation is too expensive on Ethereum.

The CyberMiles blockchain incorporates a community contributed scrypt implementation as a libENI module in the CyberMiles Virtual Machine. The libENI allows anyone to write and deploy enhancements to the CVM.

The CVM can compute a scrypt result in one line of code within 51ms. It is at least 18,039 times faster than Ethereum.

Incorporating the scrypt result, a “trusted smart contract” on the CyberMiles blockchain can then verify bitcoin headers. The trusted smart contract is another CyberMiles innovation that makes oracles first class citizens on the blockchain.

More information: https://www.cybermiles.io/technical-b...