Hi I have to develop an application to check whether TPM is password protected or not in order to perfrom any operation?
For example I am performing following step:
1:Reset TPM state
2.Create private key and store insiide TPM
So while performing this steps I got an error in step1 -> TPM_RC_LOCKOUT error
what dows that mean?
As per my understanding I think that TPM is password protected in this case.
Also if it is password protected , how can I clear this state too.?
Thanks
Last edit: sam 2019-09-20
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I need something more precsise. "Reset TPM state" can mean many things. "TPM is password protected" is also imprecise.
Any TPM entity (e.g., a key) can (optionally) use a password for authorization. Every key has a password, although a password length of 0 is legal and often used.
TPM_RC_LOCKOUT means that an entity that permits password authorization was also confgured for DA protection ( optional) and you exceeded the number (configurable) of passsword authorization tries before lockout.
Perhaps post the test script.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi I have to develop an application to check whether TPM is password protected or not in order to perfrom any operation?
For example I am performing following step:
1:Reset TPM state
2.Create private key and store insiide TPM
So while performing this steps I got an error in step1 -> TPM_RC_LOCKOUT error
what dows that mean?
As per my understanding I think that TPM is password protected in this case.
Also if it is password protected , how can I clear this state too.?
Thanks
Last edit: sam 2019-09-20
I need something more precsise. "Reset TPM state" can mean many things. "TPM is password protected" is also imprecise.
Any TPM entity (e.g., a key) can (optionally) use a password for authorization. Every key has a password, although a password length of 0 is legal and often used.
TPM_RC_LOCKOUT means that an entity that permits password authorization was also confgured for DA protection ( optional) and you exceeded the number (configurable) of passsword authorization tries before lockout.
Perhaps post the test script.