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30 lines
1.0 KiB
Plaintext
30 lines
1.0 KiB
Plaintext
== YubiKey OTP Validation Server ==
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The YubiKey Validation Server (YK-VAL) is a server that validates
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Yubikey One-Time Passwords (OTPs). YK-VAL is written in PHP, for use
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behind web servers such as Apache.
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General
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-------
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The server implements the Yubico API protocol as defined in
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doc/ValidationProtocol* and further documentation is also available in
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the doc/ subdirectory.
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This server talks to a KSM service for decrypting the OTPs, to avoid
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storing any AES keys on the validation server. One implementation of
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this service is the https://developers.yubico.com/yubikey-ksm[YubiKey-KSM],
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and another implementation using the YubiHSM hardware is
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https://developers.yubico.com/python-pyhsm[PyHSM].
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Note that version 1.x is a minimal centralized server. Version 2.x is
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a replicated system that uses multiple machines.
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License
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-------
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The project is licensed under a BSD license. See the file COPYING for
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exact wording. For any copyright year range specified as YYYY-ZZZZ in
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this package note that the range specifies every single year in that
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closed interval.
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