Provided by: openssl_1.1.1c-1ubuntu4_amd64
openssl-crl, crl - CRL utility
openssl crl [-help] [-inform PEM|DER] [-outform PEM|DER] [-text] [-in filename] [-out filename] [-nameopt option] [-noout] [-hash] [-issuer] [-lastupdate] [-nextupdate] [-CAfile file] [-CApath dir]
The crl command processes CRL files in DER or PEM format.
-help Print out a usage message. -inform DER|PEM This specifies the input format. DER format is DER encoded CRL structure. PEM (the default) is a base64 encoded version of the DER form with header and footer lines. -outform DER|PEM This specifies the output format, the options have the same meaning and default as the -inform option. -in filename This specifies the input filename to read from or standard input if this option is not specified. -out filename Specifies the output filename to write to or standard output by default. -text Print out the CRL in text form. -nameopt option Option which determines how the subject or issuer names are displayed. See the description of -nameopt in x509(1). -noout Don't output the encoded version of the CRL. -hash Output a hash of the issuer name. This can be use to lookup CRLs in a directory by issuer name. -hash_old Outputs the "hash" of the CRL issuer name using the older algorithm as used by OpenSSL before version 1.0.0. -issuer Output the issuer name. -lastupdate Output the lastUpdate field. -nextupdate Output the nextUpdate field. -CAfile file Verify the signature on a CRL by looking up the issuing certificate in file. -CApath dir Verify the signature on a CRL by looking up the issuing certificate in dir. This directory must be a standard certificate directory: that is a hash of each subject name (using x509 -hash) should be linked to each certificate.
The PEM CRL format uses the header and footer lines: -----BEGIN X509 CRL----- -----END X509 CRL-----
Convert a CRL file from PEM to DER: openssl crl -in crl.pem -outform DER -out crl.der Output the text form of a DER encoded certificate: openssl crl -in crl.der -inform DER -text -noout
Ideally it should be possible to create a CRL using appropriate options and files too.
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