AWS Certificate Manager Private Certificate Authority
User Guide (Version latest)

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Creating a Certificate Revocation List (CRL)

ACM Private CA can create a certificate revocation list (CRL) for you when you create a new private CA or update an existing CA. The CRL is written to an Amazon S3 bucket that you specify. Note that ACM Private CA does not support Amazon S3 server-side encryption (SSE) for CRLs and audit reports. Each CRL is a DER encoded file. To download the file and use OpenSSL to view it, use a command like to the following:

openssl crl -inform DER -in path-to-crl-file -text -noout

CRLs have the following format:

Certificate Revocation List (CRL): Version 2 (0x1) Signature Algorithm: sha256WithRSAEncryption Issuer: /C=US/ST=WA/L=Seattle/O=Example Company CA/OU=Corporate/ Last Update: Feb 26 19:28:25 2018 GMT Next Update: Feb 26 20:28:25 2019 GMT CRL extensions: X509v3 Authority Key Identifier: keyid:AA:6E:C1:8A:EC:2F:8F:21:BC:BE:80:3D:C5:65:93:79:99:E7:71:65 X509v3 CRL Number: 1519676905984 Revoked Certificates: Serial Number: E8CBD2BEDB122329F97706BCFEC990F8 Revocation Date: Feb 26 20:00:36 2018 GMT CRL entry extensions: X509v3 CRL Reason Code: Key Compromise Serial Number: F7D7A3FD88B82C6776483467BBF0B38C Revocation Date: Jan 30 21:21:31 2018 GMT CRL entry extensions: X509v3 CRL Reason Code: Key Compromise Signature Algorithm: sha256WithRSAEncryption 82:9a:40:76:86:a5:f5:4e:1e:43:e2:ea:83:ac:89:07:49:bf: c2:fd:45:7d:15:d0:76:fe:64:ce:7b:3d:bb:4c:a0:6c:4b:4f: 9e:1d:27:f8:69:5e:d1:93:5b:95:da:78:50:6d:a8:59:bb:6f: 49:9b:04:fa:38:f2:fc:4c:0d:97:ac:02:51:26:7d:3e:fe:a6: c6:83:34:b4:84:0b:5d:b1:c4:25:2f:66:0a:2e:30:f6:52:88: e8:d2:05:78:84:09:01:e8:9d:c2:9e:b5:83:bd:8a:3a:e4:94: 62:ed:92:e0:be:ea:d2:59:5b:c7:c3:61:35:dc:a9:98:9d:80: 1c:2a:f7:23:9b:fe:ad:6f:16:7e:22:09:9a:79:8f:44:69:89: 2a:78:ae:92:a4:32:46:8d:76:ee:68:25:63:5c:bd:41:a5:5a: 57:18:d7:71:35:85:5c:cd:20:28:c6:d5:59:88:47:c9:36:44: 53:55:28:4d:6b:f8:6a:00:eb:b4:62:de:15:56:c8:9c:45:d7: 83:83:07:21:84:b4:eb:0b:23:f2:61:dd:95:03:02:df:0d:0f: 97:32:e0:9d:38:de:7c:15:e4:36:66:7a:18:da:ce:a3:34:94: 58:a6:5d:5c:04:90:35:f1:8b:55:a9:3c:dd:72:a2:d7:5f:73: 5a:2c:88:85