Function report | 
Source Code:security\keys\trusted-keys\trusted_tpm1.c | 
Create Date:2022-07-28 18:30:23 | 
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick | 
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| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:Lock a trusted key, by extending a selected PCR.* Prevents a trusted key that is sealed to PCRs from being accessed.* This uses the tpm driver's extend function.
Proto:static int pcrlock(const int pcrnum)
Type:int
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| const int | pcrnum | 
| 389 | If Not Check operation authority Then Return -EPERM | 
| 392 | Return If tpm_pcr_extend(chip, pcrnum, digests) Then -EINVAL Else 0 | 
| Name | Describe | 
|---|---|
| trusted_instantiate | rusted_instantiate - create a new trusted key* Unseal an existing trusted blob or, for a new key, get a* random key, then seal and create a trusted key-type key,* adding it to the specified keyring.* On success, return 0. Otherwise return errno. | 
| trusted_update | rusted_update - reseal an existing key with new PCR values | 
| Source code conversion tool public plug-in interface  | X | 
|---|---|
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