.TH "nvme_update_key" 9 "nvme_update_key" "May 2024" "libnvme API manual" LINUX .SH NAME nvme_update_key \- Update key raw data .SH SYNOPSIS .B "long" nvme_update_key .BI "(long keyring_id " "," .BI "const char *key_type " "," .BI "const char *identity " "," .BI "unsigned char *key_data " "," .BI "int key_len " ");" .SH ARGUMENTS .IP "keyring_id" 12 Id of the keyring holding key_id .IP "key_type" 12 Type of the key to insert .IP "identity" 12 Key identity string .IP "key_data" 12 Raw data of the key .IP "key_len" 12 Length of \fIkey_data\fP .SH "DESCRIPTION" Links the keyring specified by \fIkeyring_id\fP into the session keyring and updates the key reference by \fIidentity\fP with \fIkey_data\fP. The old key with identity \fIidentity\fP will be revoked to make it inaccessible. .SH "RETURN" Key id of the new key or 0 with errno set otherwise.