Check if the additionalUrlParams in the voucher are encrypted. If yes, decrypt it and then hash it to send it to the verifier.

[surabhil]

Client library would check if the data is encrypted. If yes, it would decrypt it using user’s authVerifier private key and offer creator's (issuer/whitelisted account's)public key. It can get creator's public key using orejs from the chain.

Hash the decrypted parameters and send to the verifier

Rest of the flow remains the same.