File:Public key shared secret.svg
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[edit] Summary
Public-key cryptography / asymmetric cryptography, shared secret agreement.
Alice combines her own private key with Bob's public key to create a shared secret. Likewise Bob combines his own private key with Alice's public key and gets the same shared secret. This secret is now only known by Alice and Bob. The shared secret can be used as a symmetric key for encrypted communication between Alice and Bob and for many other purposes such as MACing and to create multiple message keys etc.
Original illustration by David Göthberg, Sweden.
Released by David as public domain.
[edit] Licensing
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
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[edit] Other versions
See Category:Cryptography diagrams for several related diagrams. (That category is on Wikimedia Commons.)
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:02, 21 August 2006 | | 581 × 650 (24 KB) | Davidgothberg | Improved image. |
| 08:39, 7 August 2006 |  | 581 × 650 (21 KB) | Davidgothberg | Public-key cryptography / asymmetric cryptography, shared secret agreement. Alice combines her own secret key with Bob's public key to create a shared secret. Likewise Bob combines his own secret key with Alice's public key and gets the same shared secre |
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