Versions of these functions which write their output in a buffer passed in as an argument
val encrypt :
st:t ->
iv:bytes ->
ad:bytes ->
pt:bytes ->
ct:bytes ->
tag:bytes ->
unit Error.resultencrypt st iv ad pt ct tag takes a state st, an initial value iv, additional data ad, and plaintext pt, as well as output buffers ct, which, if successful, will contain the encrypted pt, and tag, which will contain the authentication tag for the plaintext and the associated data.
val decrypt :
st:t ->
iv:bytes ->
ad:bytes ->
ct:bytes ->
tag:bytes ->
pt:bytes ->
unit Error.resultdecrypt st iv ad ct tag pt takes a state st, the initial value iv, additional data ad, ciphertext ct, and authentication tag tag, as well as output buffer pt, which, if successful, will contain the decrypted ct.