我在 Ubuntu 17.10 上发现了 tpm2.0 芯片。我在 1.1.0 版中使用 tpm2-tools 包。(我的笔记本电脑上有物理芯片)。但是,当我尝试清除芯片时出现错误。
$ tpm2_takeownership -c
Clear Failed ! ErrorCode: 0x921
我也启动了 tpmtest 并且几乎没有错误。
9 - DICTIONARY ATTACK LOCK RESET TEST
DICTIONARY ATTACK LOCK RESET TEST:
passing case: FAILED! TPM Error: 0x921
16 - POLICY TESTS
POLICY TESTS:
Policy Test: PASSWORD
passing case: PASSED!
passing case: PASSED!
passing case: PASSED!
passing case: PASSED!
passing case: PASSED!
passing case: PASSED!
passing case: FAILED! TPM Error: 0x9a2
24 - QUOTE CONTROL TESTS
QUOTE CONTROL TESTS:
passing case: FAILED! TPM Error: 0x184
我在 tpmclient 中也有一个失败的测试。
$ tpmclient
[...]
STARTUP TESTS:
passing case: PASSED!
passing case: FAILED! TPM Error: 0x100
我检查了resourcemgr 服务是否已很好地激活。我在 tpm 上尝试了一些基本命令(tpm2_create、tpm2_load、tpm2_rsaencrypt、tpm2_sign 等),它们都起作用了。
这是 tpm2_rc_decode 的输出:
$ tpm2_rc_decode 0x921
error layer
hex: 0x0
identifier: TSS2_TPM_ERROR_LEVEL
description: Error produced by the TPM
format 0 warning code
hex: 0x21
name: TPM_RC_LOCKOUT
description: authorizations for objects subject to DA protection are not allowed at this time because the TPM is in DA lockout mode
$ tpm2_rc_decode 0x9a2
error layer
hex: 0x0
identifier: TSS2_TPM_ERROR_LEVEL
description: Error produced by the TPM
format 1 error code
hex: 0x22
identifier: TPM_RC_BAD_AUTH
description: authorization failure without DA implications
session
hex: 0x100
identifier: TPM_RC_1
description: (null)
$ tpm2_rc_decode 0x184
error layer
hex: 0x0
identifier: TSS2_TPM_ERROR_LEVEL
description: Error produced by the TPM
format 1 error code
hex: 0x04
identifier: TPM_RC_VALUE
description: value is out of range or is not correct for the context
handle
hex:0x100
identifier: TPM_RC_1
description: (null)
$ tpm2_rc_decode 0x100
error layer
hex: 0x0
identifier: TSS2_TPM_ERROR_LEVEL
description: Error produced by the TPM
format 0 error code
hex: 0x00
name: TPM_RC_INITIALIZE
description: TPM not initialized
我是 tpm 技术的新手,所以我想知道这些错误是来自 tpm 本身还是来自 tpm2-tools 包。谢谢您的帮助 !