KMS Ethereum Signing Library

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Motivation

Native Ethereum transaction signing using AWS KMS with ECC_SECG_P256K1 (secp256k1) support. the library enables secure, HSM-backed signing of Ethereum transactions without exposing private keys to your application.

Details

• Native secp256k1 support via AWS KMS
• Private keys never leave KMS (signing in HSM)
• Automatic key generation
• Gas estimation
• Multi-chain support (Ethereum, Polygon, BSC, Arbitrum, Optimism, Base)
• CLI tools and library API
• Built-in transaction submission
• Publish an npm package that contains the core logic for KMS-based signing.

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@sirpy
I don’t think automatic key generation is required. Instead, I implemented support for uploading existing private keys to use KMS.
This logic is implemented in the KMS package project, not in GoodServer.