Security, Identity, & Compliance

Use AWS Nitro Enclaves to build Cubist CubeSigner, a secure and highly reliable key management platform for Ethereum validators and beyond

Validators are the fundamental building blocks of proof-of-stake (PoS) blockchain protocols like Ethereum. They maintain the history of the chain and run the consensus protocol that makes it possible to implement complex decentralized applications—from decentralized finance applications to NFT collectibles. To join the protocol, validators provide assets as collateral, which ensures they behave correctly in […]

AWS Nitro Enclaves for secure blockchain key management: Part 3

In Part 1 of this series, we gave a high-level introduction to the AWS Nitro System and explained why Nitro is well suited for flexible and secure blockchain key management workloads. In Part 2, we guided you through the steps to configure aspects like AWS Key Management Service (AWS KMS) key policies and how to […]

AWS Nitro Enclaves for secure blockchain key management: Part 2

In Part 1 of this series, we provided a high-level introduction to the AWS Nitro System and explained why Nitro is well suited for flexible and secure blockchain key management workloads. In this post, we guide you through the steps to configure aspects like AWS Key Management Service (AWS KMS) key policies and how to […]

AWS Nitro Enclaves for secure blockchain key management: Part 1

Public blockchains are used for a variety of use cases, like decentralized finance (DeFi) apps, non-fungible token (NFT) apps, or cross-border payments. Blockchains differ in their protocol and consensus design, implementation language, and smart contract capabilities. Determining how external participants can be incentivized to join a network running their own node is key in economic […]

How to sign Ethereum EIP-1559 transactions using AWS KMS

Ethereum is a popular public blockchain that enables you to create decentralized applications across a variety of use cases. In 2020 and 2021, it became widely used for decentralized finance (DeFi) apps and non-fungible token (NFT) apps. Due to its permissionless nature, it’s available to every user by just setting up an Ethereum account. These […]

Use Key Management Service (AWS KMS) to securely manage Ethereum accounts: Part 2

Ethereum is a popular public blockchain that makes it possible to create unstoppable applications in a permissionless fashion. It’s available to every user that has an Ethereum account. These Ethereum accounts consist of a private and an associated public key. The main challenge as a user participating in a public blockchain such as Ethereum is […]

Use Key Management Service (AWS KMS) to securely manage Ethereum accounts: Part 1