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OPENSSL-CRL(1SSL) OpenSSL OPENSSL-CRL(1SSL)

📛 NAME

openssl-crl - CRL command

🚀 Quick Reference

Use Case	Command	Description
Convert CRL from PEM to DER	openssl crl -in crl.pem -outform DER -out crl.der	Convert a CRL file from PEM to DER format.
View CRL in text form	openssl crl -in crl.der -text -noout	Output the CRL in human-readable text form.
Verify CRL signature	openssl crl -in crl.pem -verify	Verify the signature on the CRL.
Output CRL fingerprint	openssl crl -in crl.pem -fingerprint -noout	Print the fingerprint of the CRL.
Output CRL number	openssl crl -in crl.pem -crlnumber -noout	Print the CRL number.
Output issuer hash	openssl crl -in crl.pem -hash -noout	Print the hash of the issuer name.
Output issuer name	openssl crl -in crl.pem -issuer -noout	Print the issuer name.
Output lastUpdate	openssl crl -in crl.pem -lastupdate -noout	Print the lastUpdate field.
Output nextUpdate	openssl crl -in crl.pem -nextupdate -noout	Print the nextUpdate field.
Generate delta CRL	openssl crl -in crl.pem -gendelta delta.pem	Output a comparison of the main CRL and a delta CRL.

📋 SYNOPSIS

openssl crl [-help] [-inform DER|PEM] [-outform DER|PEM] [-key filename] [-keyform DER|PEM|P12] [-dateopt] [-text] [-in filename] [-out filename] [-gendelta filename] [-badsig] [-verify] [-noout] [-hash] [-hash_old] [-fingerprint] [-crlnumber] [-issuer] [-lastupdate] [-nextupdate] [-nameopt option] [-CAfile file] [-no-CAfile] [-CApath dir] [-no-CApath] [-CAstore uri] [-no-CAstore] [-provider name] [-provider-path path] [-propquery propq]

📖 DESCRIPTION

This command processes CRL files in DER or PEM format.

⚙️ OPTIONS

-help 🔍 Print out a usage message. -inform DER|PEM 📄 The CRL input format; unspecified by default. See openssl-format-options(1) for details. -outform DER|PEM 📄 The CRL output format; the default is PEM. See openssl-format-options(1) for details. -key filename 🔑 The private key to be used to sign the CRL. -keyform DER|PEM|P12 🔑 The format of the private key file; unspecified by default. See openssl-format-options(1) for details. -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. -gendelta filename 🔄 Output a comparison of the main CRL and the one specified here. -badsig 💥 Corrupt the signature before writing it; this can be useful for testing. -dateopt 📅 Specify the date output format. Values are: rfc_822 and iso_8601. Defaults to rfc_822. -text 📝 Print out the CRL in text form. -verify ✅ Verify the signature in the CRL. -noout 🚫 Don't output the encoded version of the CRL. -fingerprint 🖐️ Output the fingerprint of the CRL. -crlnumber 🔢 Output the number 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. -nameopt option 🔤 This specifies how the subject or issuer names are displayed. See openssl-namedisplay-options(1) for details. -CAfile file, -no-CAfile, -CApath dir, -no-CApath, -CAstore uri, -no-CAstore 🔐 See "Trusted Certificate Options" in openssl-verification-options(1) for details. -provider name 🔧 Provider name. -provider-path path 🔧 Provider path. -propquery propq 🔧 Property query. See "Provider Options" in openssl(1), provider(7), and property(7).

🧪 EXAMPLES

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 -text -noout

🐛 BUGS

Ideally it should be possible to create a CRL using appropriate options and files too.

🔗 SEE ALSO

openssl(1), openssl-crl2pkcs7(1), openssl-ca(1), openssl-x509(1), ossl_store-file(7)

©️ COPYRIGHT

Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.

3.0.2 2026-06-02 OPENSSL-CRL(1SSL)

📛 NAME 🚀 Quick Reference 📋 SYNOPSIS 📖 DESCRIPTION ⚙️ OPTIONS 🧪 EXAMPLES 🐛 BUGS 🔗 SEE ALSO ©️ COPYRIGHT