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tests/README: Update instructions for key/cert pair usage on device.

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Signed-off-by: Andrew Leech <andrew@alelec.net>
This commit is contained in:
Andrew Leech
2024-07-25 16:20:05 +10:00
committed by Damien George
parent 338df1ae35
commit c2eebe0609
1 changed files with 18 additions and 7 deletions
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tests/README.md
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@@ -177,11 +177,21 @@ internal_bench/bytebuf:
## Test key/certificates
SSL/TLS tests in `multi_net` and `net_inet` use a
self-signed key/cert pair that is randomly generated and to be used for
testing/demonstration only. You should always generate your own key/cert.
SSL/TLS tests in `multi_net` and `net_inet` use self-signed key/cert pairs
that are randomly generated to be used for testing/demonstration only.
To generate a new self-signed RSA key/cert pair with openssl do:
To run tests on-device the `.der` files should be copied and the current time
set to ensure certs validity. This can be done with:
```
$ mpremote rtc --set cp multi_net/*.der net_inet/*.der :
```
### Generating new test key/certificates
The keys used for the unit tests are included in the tests folders so don't generally
need to be re-created by end users. This section is included here for reference only.
A new self-signed RSA key/cert pair can be created with openssl:
```
$ openssl req -x509 -newkey rsa:2048 -keyout rsa_key.pem -out rsa_cert.pem -days 365 -nodes -subj '/CN=micropython.local/O=MicroPython/C=AU'
```
@@ -193,8 +203,9 @@ $ openssl pkey -in rsa_key.pem -out rsa_key.der -outform DER
$ openssl x509 -in rsa_cert.pem -out rsa_cert.der -outform DER
```
To test elliptic curve key/cert pairs, create a key then a certificate using:
For elliptic curve tests using key/cert pairs, create a key then a certificate using:
```
$ openssl ecparam -name prime256v1 -genkey -noout -out ec_key.der -outform DER
$ openssl req -new -x509 -key ec_key.der -out ec_cert.der -outform DER -days 365 -nodes -subj '/CN=micropython.local/O=MicroPython/C=AU'
$ openssl ecparam -name prime256v1 -genkey -noout -out ec_key.pem
$ openssl x509 -in ec_key.pem -out ec_key.der -outform DER
$ openssl req -new -x509 -key ec_key.pem -out ec_cert.der -outform DER -days 365 -nodes -subj '/CN=micropython.local/O=MicroPython/C=AU'
```