english: Unlike all of the prior methods used throughout history, it doesn't require that the two parties that want to send each other confidential information have exchanged the secret key beforehand.
non_english: Nasuprot svim prethodno korišćenim metodama kroz istoriju, ova ne zahteva da dve strane koje žele da pošalju jedna drugoj poverljive informacije moraju da prethodno razmene tajni ključ.