Add more security checks for challenge (#40) #217

Job	Run time
ubuntu-build-with-local-db	2m 34s
ubuntu-build-with-local-db	2m 34s
macos-build-with-all	4s
macos-build-with-all	4m 24s
ubuntu-build-with-influx	1m 15s
ubuntu-build-with-influx	1m 15s
ubuntu-build-with-splunk	1m 18s
ubuntu-build-with-splunk	1m 18s
ubuntu-build-with-all-except-yubikey	2m 30s
ubuntu-build-with-all-except-yubikey	2m 30s
ubuntu-build-with-amazon-kms	2m 20s
ubuntu-build-with-amazon-kms	2m 20s
	24m 22s

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