Image:Public key shared secret.svg

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Public_key_shared_secret.svg‎ (24KB, MIME type: image/svg+xml)

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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

Public domain I, the author of this work, hereby release it into the public domain. This applies worldwide.

In case this is not legally possible:
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.)

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