Task: Text Simplification
Input (English): diffie-hellman key exchange -lrb- d-h -rrb- is a cryptographic protocol that allows two parties that have no prior knowledge of each other to jointly establish a shared secret key over an insecure communications channel.
Output (English): it is diffie-hellman key exchange . diffie-hellman key exchange is a cryptographic protocol . he lets two parties that have no prior knowledge of each other to jointly establish a shared secret key over an insecure communications channel.