Rsa.OAEPOAEP-padded encryption, as defined by PKCS #1 v2.1.
The same hash function is used for padding and MGF. MGF is MGF1 as defined in PKCS #1 2.1.
Keys must have a minimum of 2 + 2 * hlen + len(message) bytes, where hlen is the hash length.
val encrypt :
?g:Mirage_crypto_rng.g ->
?label:string ->
key:pub ->
string ->
stringencrypt ~g ~label ~key message is OAEP-padded and encrypted message, using the optional label.