During the execution of SWPM it fails with message similar to this in sapinst_dev.log:
WARNING <timestamp> (<user>) (startInstallation) [ArchiveSignatureChecker.cpp:103]
SAR file at '<media>.sarr' has been tampered with!
Modified files: 
Full SAPCAR output:
SAPCAR: processing archive <media>.sar (version 2.01)
SAPCAR: error during certificate revocation check (error 61). SSF-RC: SSF_API_CRL_OUTDATED
Detail: CRL is outdated (CurrentTime>CRL.nextUpdate)
CRL outdated. Download and use CRL from https://tcs.mysap.com/crl/crlbag.p7s
01.01.2018 01/01/2018 , KBA , BC-INS-SWPM , Installation with Software Provisioning Manager , Problem
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