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KB-39253: Can an existing OATH OTP that is set up on one tenant be used as an MFA option for a second federated tenant?

Authentication Service ,   Privileged Access Service ,  

21 August,20 at 02:47 PM

Question:
Can an existing OATH OTP that is set up on one tenant be used as an MFA option for a second federated tenant?

Answer:
Unfortunately, the existing OATH OTP from one tenant cannot be used on another federated tenant.

OATH tokens are attached to the host name when created, its part of the protocol (and embedded in the 'data' used to generate OTPs). So if the OATH token was created for .my.centrify.com, it can't work on .my.centrify.net.

For interactive login (not agents, ssh/rdp) for a federated user, redirection to the IDP occurs, and OATH token is usable (as authentication is occurring on the IDP at its host name). For cases like SSH/RDP/agents, there is not redirection, so the OATH token registered to the IDP cannot be used.

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