using one or more public keys, this allows the same encrypted data to be
decrypted using any of the corresponding private keys. B<ek> is an array of
buffers where the public key encrypted secret key will be written, each buffer
using one or more public keys, this allows the same encrypted data to be
decrypted using any of the corresponding private keys. B<ek> is an array of
buffers where the public key encrypted secret key will be written, each buffer