Function perform_client_challenge_handshake 

pub async fn perform_client_challenge_handshake(
    send: SendStream,
    recv: RecvStream,
    server_public_key: &VerifyingKey,
    key_pairs: &[&KeyPair],
) -> Result<(usize, Vec<ZoeChallengeWarning>)>

Performs the client side of the challenge-response handshake

This function implements the client side of the challenge protocol:

1. Receives a challenge from the server
2. Creates proofs for all provided keys
3. Sends the response to the server
4. Receives and processes the verification result

Arguments

• send - Stream for sending data to the server
• recv - Stream for receiving data from the server
• key_pairs - Slice of signing keys to prove possession of

Returns

The number of keys that were successfully verified by the server

Errors

Returns an error if:

• Network I/O fails
• Serialization/deserialization fails
• All key proofs fail verification
• Server response is malformed or too large

Example

use zoe_client::challenge::perform_client_challenge_handshake;

let verified_count = perform_client_challenge_handshake(
    send_stream,
    recv_stream,
    &[&personal_key, &work_key]
).await?;

debug!("Successfully verified {} out of {} keys", verified_count, 2);