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| Keywords: Public key making.svg Public-key cryptography / asymmetric cryptography creating a key pair A big random number is used to create a key pair When the keys have been made the big random number is thrown away Without knowledge of the random number it should be impossible to create the private key from the public key In many algorithms it is also impossible to create the public key from the private key once the random number has been thrown away The public key can be freely published to the world Note that most key making functions internally need more than one random number To handle this the big random number usually is fed as a seed to a cryptographically secure random number generator that then produces many pseudo random numbers for the key making function Original illustration by David Göthberg Sweden Released by David as public domain 2006-08-07 own assumed Davidgothberg Other versions See Category Cryptography diagrams for several related diagrams That category is on Wikimedia Commons Public-key cryptography Diagrams in English | ||||
