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| Yubikey 2.2 COM API issue fixed https://forum.yubico.com/viewtopic.php?f=16&t=623 |
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| Author: | Jakob [ Tue Jan 11, 2011 2:52 pm ] |
| Post subject: | Yubikey 2.2 COM API issue fixed |
An issue with the configuration COM API has been resolved where OATH-HOTP configurations with Yubikey 2.2 caused unexpected HOTPs to be generated. No problems with pre-2.2 keys. From firmware version 2.2, the moving factor seed value can be set to an arbitrary value. The previous version of the configuration tool seeded this value with garbage/uninitialized data and as this field was not used prior to version 2.2, this issue was not noticed. An updated version of the COM API has been uploaded to our web at http://www.yubico.com/personalization-tool We were also asked to provide a test vector for OATH HOTP. We suggest using the one from RFC 4226 3132333435363738393031323334353637383930 8-digit HOTPs from moving factor 0 shall then be 84755224 94287082 37359152 26969429 Regards, JakobE Hardware- and firmware guy @ Yubico |
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