Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Computing | Synchronous key encryption Data encryption using two interlocking keys where enything encoded using one key may be decoded using the other key. This means if someone makes one of the two keys publicly available (as in public-key encryption) and keeps the other private, then anyone may send them a message or data that only they can decode, giving privacy, and furthermore, the sender may also encrypt that same message additionally with their own private key, making it impossible to read without decoding first with *their* _public_ key by the receiver, this gives authenticity. It is a very powerful system. One cannot determine one key from the other, nor can they crack the encryption by computing all combinations, because, depending on the size of the keys (sometimes as large as 1024 bytes, though having grown from smaller versions in popular implementations of the software which does this), the amount of computing power required to crack the code is unavailable, even supercomputers would take more than a hundred years to crack it. PGP is a publicly availble software implementation written by Phil Zimmermann. (1994-10-10). Source: The Free On-line Dictionary of Computing. |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)53 59 4E 43 48 52 4F 4E 4F 55 53 4B 45 59 45 4E 43 52 59 50 54 49 4F 4E |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01010011 01011001 01001110 01000011 01001000 01010010 01001111 01001110 01001111 01010101 01010011 00100000 01001011 01000101 01011001 00100000 01000101 01001110 01000011 01010010 01011001 01010000 01010100 01001001 01001111 01001110 |
HTML Code (1990) (references)S Y N C H R O N O U S   K E Y   E N C R Y P T I O N |
ISO 10646 (1991-1993) (references)0053 0059 004E 0043 0048 0052 004F 004E 004F 0055 0053 004B 0045 0059 0045 004E 0043 0052 0059 0050 0054 0049 004F 004E |
Encryption (beginner's substitution cypher): (references)53594837425249484955532453959239483752595054434948 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
