On-chain verification of AWS Nitro Enclave attestations is now possible on Ethereum at a cost of 70m gas (20m if the cert chain is verified).
Code executed in a TEE is only secure to the extent it can be verified that the code was indeed run inside a TEE. Attestations play an important role in guaranteeing this.
Unfortunately, different TEE implementations use different curves and hashing algorithms, not all of which have optimized precompiles on Ethereum.
In particular, AWS Nitro Enclaves use the P-384 curve for their signature scheme and the SHA384 hashing algorithm.
A naive implementation would take about 400 million gas. In this article, we describe a few optimizations to make them practical on Ethereum today!
On-chain verification of AWS Nitro Enclave attestations is now possible on Ethereum at a cost of 70m gas (20m if the cert chain is verified).
Code executed in a TEE is only secure to the extent it can be verified that the code was indeed run inside a TEE. Attestations play an important role in guaranteeing this.
Unfortunately, different TEE implementations use different curves and hashing algorithms, not all of which have optimized precompiles on Ethereum.
In particular, AWS Nitro Enclaves use the P-384 curve for their signature scheme and the SHA384 hashing algorithm.
A naive implementation would take about 400 million gas. In this article, we describe a few optimizations to make them practical on Ethereum today!
Telegram has no known backdoors and, even though it is come in for criticism for using proprietary encryption methods instead of open-source ones, those have yet to be compromised. While no messaging app can guarantee a 100% impermeable defense against determined attackers, Telegram is vulnerabilities are few and either theoretical or based on spoof files fooling users into actively enabling an attack.
What is Telegram?
Telegram is a cloud-based instant messaging service that has been making rounds as a popular option for those who wish to keep their messages secure. Telegram boasts a collection of different features, but it’s best known for its ability to secure messages and media by encrypting them during transit; this prevents third-parties from snooping on messages easily. Let’s take a look at what Telegram can do and why you might want to use it.
