atst/tests/fixtures/README.md

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# Regenerating Fixture Certificates
You don't need to keep the key file generated by this process.
1. Certificate with an email as subjectAltName:
```
openssl req -x509 \
-newkey rsa:4096 \
-sha256 \
-nodes \
-days 3650 \
-keyout _foo.key \
-out artgarfunkel@uso.mil.crt \
-subj "/CN=GARFUNKEL.ART.G.5892460358" \
-extensions SAN \
-config <(cat /etc/ssl/openssl.cnf; echo '[SAN]'; echo 'subjectAltName=email:artgarfunkel@uso.mil')
```
2. Certificate with a DNS name as subjectAltName:
```
openssl req -x509 \
-newkey rsa:4096 \
-sha256 \
-nodes \
-days 3650 \
-keyout _foo.key \
-out no-email.crt \
-subj "/CN=GARFUNKEL.ART.G.5892460358" \
-extensions SAN \
-config <(cat /etc/ssl/openssl.cnf; echo '[SAN]'; echo 'subjectAltName=DNS:artgarfunkel.com')
```
3. Certificate with no subjectAltName:
```
openssl req -x509 \
-newkey rsa:4096 \
-sha256 \
-nodes \
-days 3650 \
-keyout _foo.key \
-out no-san.crt \
-subj "/CN=GARFUNKEL.ART.G.5892460358"
```