support jwts signed using EdDSA algorithm

[wildsylvan]

EdDSA is known as a high performance signature algorithm with small key sizes and signatures. Using EdDSA signatures over RSA saves time, money and resources. EdDSA is also more secure than RSA.
EdDSA is deterministic and does not depend on a random number generator for security. The requirement of a nonce and random number generator to create one has lead to known vulnerabilities in ECDSA implementations in the past. In addition, EdDSA does not require expensive point validation for corner cases. Consequently, EdDSA is more secure than ECDSA because it is simply easier to implement.
As long as there are no other requirements that dictate the use of certain signature algorithms, switch to EdDSA if you can. It's fast, it's secure, and it's green.

powersync-service/packages/service-core/src/auth/KeySpec.ts

Line 5 in a9ec391

export const SUPPORTED_ALGORITHMS = [...HS_ALGORITHMS, ...RSA_ALGORITHMS];