ED25519 certificate causes handshake failure with CRYPTO_ERROR, while RSA2048 works #2339
Description
When using tokio-quiche with the provided example code, I encountered a handshake failure between the client and server. The issue occurs specifically when using an ED25519 certificate (generated via OpenSSL), resulting in the server returning a CRYPTO_ERROR (but TimeoutError in Rust code, #2274). However, switching to an RSA2048 certificate resolves the problem, and the handshake succeeds.
The issue appears to be specific to ED25519 certificates. When testing the same ED25519 certificate with curl (using HTTP/3), the handshake completes successfully and responses are received normally. A fix is requested to ensure compatibility with ED25519 signatures in QUIC handshakes in quiche h3 client.
Link #2186.
