keyAgreement
open suspend override fun keyAgreement(alias: String, otherKey: EcPublicKey, keyUnlockData: KeyUnlockData?): ByteArray
Performs Key Agreement.
If the key needs unlocking before use (for example user authentication in any shape or form) and keyUnlockData isn't set or doesn't contain what's needed, KeyLockedException is thrown.
Return
The shared secret.
Parameters
alias
the alias of the EC key to use.
otherKey
The public EC key from the other party
keyUnlockData
data used to unlock the key, null, or a KeyUnlockInteractive to handle user authentication automatically.
Throws
if there is no key with the given alias or the key wasn't created with purpose KeyPurpose.AGREE_KEY.
if the key needs unlocking.
if the key is no longer usable.