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76 lines
3 KiB
Markdown
76 lines
3 KiB
Markdown
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# Quote
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This example demonstrates the use of ESAPI.quote
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The code will:
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* setup the ESAPI interface
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* send a TPM_STARTUP clear command
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* request a quote using the given attestation key, pcrs and extradata
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* unmarshal the returned data structures and print these as a python dict and convert to JSON and pretty print
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## Setup and Variables
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The following code might need to be modified for you local setup
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```python3
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tcti_to_use = None
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attestation_key_handle = 0x810100AA
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pcrs_to_quote = "sha256:0,1,2,3"
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extradata_to_use = b"Ian12345"
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```
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## Running
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To run type `python3 quote.py`
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Errors might be generated as the pytss libraries search for a suitable TPM device. If everything is successful then a pretty printed JSON structure will be shown.
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## Example Output
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```bash
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~/tpm.dev.tutorials/PythonExamples$ python3 quote.py
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ERROR:tcti:src/tss2-tcti/tcti-device.c:442:Tss2_Tcti_Device_Init() Failed to open specified TCTI device file /dev/tpmrm0: No such file or directory
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ERROR:tcti:src/tss2-tcti/tctildr-dl.c:154:tcti_from_file() Could not initialize TCTI file: libtss2-tcti-device.so.0
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ERROR:tcti:src/tss2-tcti/tcti-device.c:442:Tss2_Tcti_Device_Init() Failed to open specified TCTI device file /dev/tpm0: No such file or directory
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ERROR:tcti:src/tss2-tcti/tctildr-dl.c:154:tcti_from_file() Could not initialize TCTI file: libtss2-tcti-device.so.0
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ERROR:tcti:src/tss2-tcti/tcti-swtpm.c:222:tcti_control_command() Control command failed with error: 1
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ERROR:tcti:src/tss2-tcti/tcti-swtpm.c:330:tcti_swtpm_set_locality() Failed to set locality: 0xa000a
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WARNING:tcti:src/tss2-tcti/tcti-swtpm.c:599:Tss2_Tcti_Swtpm_Init() Could not set locality via control channel: 0xa000a
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ERROR:tcti:src/tss2-tcti/tctildr-dl.c:154:tcti_from_file() Could not initialize TCTI file: libtss2-tcti-swtpm.so.0
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att= <tpm2_pytss.types.TPMS_ATTEST object at 0x7f5fb10419d0>
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ae= <class 'dict'>
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{'attested': {'pcrDigest': '38723a2e5e8a17aa7950dc008209944e898f69a7bd10a23c839d341e935fd5ca', 'pcrSelect': [{'hash': 'sha256', 'pcrSelect': [0, 1, 2, 3]}]}, 'clockInfo': {'clock': 308418200, 'resetCount': 22, 'restartCount': 0, 'safe': 1}, 'extraData': '49616e3132333435', 'firmwareVersion': [538513443, 1455670], 'magic': 4283712327, 'qualifiedSigner': '000bff3ea118be81e7f10ead098c900b93c885785e828bf27d824a87add847b5ec56', 'type': 'attest_quote'}
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{
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"attested": {
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"pcrDigest": "38723a2e5e8a17aa7950dc008209944e898f69a7bd10a23c839d341e935fd5ca",
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"pcrSelect": [
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{
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"hash": "sha256",
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"pcrSelect": [
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0,
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1,
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2,
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3
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]
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}
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]
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},
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"clockInfo": {
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"clock": 308418200,
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"resetCount": 22,
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"restartCount": 0,
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"safe": 1
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},
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"extraData": "49616e3132333435",
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"firmwareVersion": [
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538513443,
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1455670
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],
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"magic": 4283712327,
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"qualifiedSigner": "000bff3ea118be81e7f10ead098c900b93c885785e828bf27d824a87add847b5ec56",
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"type": "attest_quote"
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}
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```
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