What is Web3Signer?
Web3Signer is an open-source signing service developed under the Apache 2.0 license and written in Java.
Web3Signer is capable of signing on multiple platforms using private keys stored in an external vault, or encrypted on a disk.
Web3Signer can sign payloads using secp256k1 and BLS12-381 signing keys, and supports the following platforms:
- Execution layer (formerly called Ethereum 1.0)
- Consensus layer (formerly called Ethereum 2.0)