ismir-explorer.ai.ovgu.de
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:96:bc:98:6a:03:04:23:a8:10:8c:47:d0:d7:9e:62:93:b2 was issued on by Let's Encrypt.
With 3 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=ismir-explorer.ai.ovgu.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:96:bc:98:6a:03:04:23:a8:10:8c:47:d0:d7:9e:62:93:b2Serial Number (int): 312629899075925954458008997133416145261490
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 8c:90:ee:20:1f:8f:e0:52:5b:f3:ce:06:16:bd:dd:70:b6:67:df:bc
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): cc:dd:b3:16:3f:92:6f:b6:65:9e:18:65:04:e6:b5:dd:d6:cc:1b:d8
Fingerprint (sha256): 10:25:b9:e2:c8:ba:a7:06:15:6d:f2:d5:a0:1a:e8:67:bc:04:16:a4:80:05:c3:65:d4:e5:1e:88:8d:04:75:83
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate ismir-explorer.ai.ovgu.de
3
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for ismir-explorer.ai.ovgu.de
Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
ismir-explorer.ai.ovgu.de
ismir.cs.ovgu.de
ismir.cs.uni-magdeburg.de
ismir.cs.ovgu.de
ismir.cs.uni-magdeburg.de
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Certificate
The complete raw certificate details for ismir-explorer.ai.ovgu.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFmDCCBICgAwIBAgISA5a8mGoDBCOoEIxH0NeeYpOyMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA5MzAxNTAxMDhaFw0x OTEyMjkxNTAxMDhaMCQxIjAgBgNVBAMTGWlzbWlyLWV4cGxvcmVyLmFpLm92Z3Uu ZGUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDLwyQj7NVZ3OHxt8aw HdGL0tpi1EIbNMFGr+BfRaZo9oJ6y9xYciIn5+dYXI7xqhIMtQC/teCMssXo2Vv8 7FqiEIffJWu8ol9XuzoKywk4V80coMAEZ4AXi5XmK7t+HGiK684xtTsTfcnAnLCQ ZQqmeMpbVw3jmwiqUBMLOtGoNGgOUvb4wO5eYBrHL9rjM75vHzCdTXVjihSuuVU+ Lw1Bp5DmOWFh2Gb2Sxs+AL0cugJivxcVxvt91PXLn5W2LX5Kfhu60eYhikg0PMNc YZZWvp5x6At+3+akvdSvFLFswp2FMNw3d9+KuijZs05QAseLDE2+YuOVgSFet0Et myfbAgMBAAGjggKcMIICmDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFIyQ7iAfj+BS W/POBha93XC2Z9+8MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wUQYDVR0RBEowSIIZaXNtaXItZXhwbG9yZXIuYWkub3Zn dS5kZYIQaXNtaXIuY3Mub3ZndS5kZYIZaXNtaXIuY3MudW5pLW1hZ2RlYnVyZy5k ZTBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUF BwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB1nkCBAIE gfYEgfMA8QB3AOJpS64m6OlACeiGG7Y7g9Q+5/50iPukjyiTAZ3d8dv+AAABbYLn cTEAAAQDAEgwRgIhAKIVWH5JcroM3K6mm+ZcGueao7KwIpo4VSsyCtujfZDeAiEA m5hYoqtUwHqF6Q6groBPDP+4+kk6bhghaTLU22tmNuMAdgBj8tvN6DvMLM8LcoQn V2szpI1hd4+9daY4scdoVEvYjQAAAW2C53E9AAAEAwBHMEUCIB+TP5Vz4noitjRX WkG6B8lTkE91bB/8sZCQRudfMO+jAiEAv2O1GD2qcP75Py1j0tHuA5pkWNX8ga+c 3qYEScROUM8wDQYJKoZIhvcNAQELBQADggEBAIqiK1+8+3HC7UWFK4e9M/ACpzGo qqV2q9/5lRJgRc2sbBgJT16ZeQSCM/9avpaOzFsmUj1CNDKnuovLRCcK+arYOv98 pLHyfHCYhvTjczmz4ghXA67apEmY6J0vgGgUolCU4+YBMZUguzawyOpZL1VZFM+U MMxDsHw7kA+krmueoYtZbq89uVLG/ZPX7Z9VjeW6jlnH9HoQailt30LumYPit1rS Rc9UYqU9z2OezFHu2qp/UunjHdbDLAVn7+OBwhsYXydqse9O2vNumXYQ/NePpkOp N1a0evaLO+YekJc1P+AhN6Vi2hs8t4foEvfKBewWB9XCOdmzVbqDIX5TSsM= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAy8MkI+zVWdzh8bfGsB3R i9LaYtRCGzTBRq/gX0WmaPaCesvcWHIiJ+fnWFyO8aoSDLUAv7XgjLLF6Nlb/Oxa ohCH3yVrvKJfV7s6CssJOFfNHKDABGeAF4uV5iu7fhxoiuvOMbU7E33JwJywkGUK pnjKW1cN45sIqlATCzrRqDRoDlL2+MDuXmAaxy/a4zO+bx8wnU11Y4oUrrlVPi8N QaeQ5jlhYdhm9ksbPgC9HLoCYr8XFcb7fdT1y5+Vti1+Sn4butHmIYpINDzDXGGW Vr6ecegLft/mpL3UrxSxbMKdhTDcN3ffiroo2bNOUALHiwxNvmLjlYEhXrdBLZsn 2wIDAQAB -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 312629899075925954458008997133416145261490 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-30 15:01:08 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-29 15:01:08 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'ismir-explorer.ai.ovgu.de' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 25722603607057448587573343670865971677994301146438340059390343979279043276021053133617807881398234167537469107639739711695764559287830074002744184644777349271721360024145500670386267347806301628456004219701415790970661206873607765895363906175525042873643752993624066201376844601036063466613362707560778404192050241259165084455726808883012841678076306155677601271392696762430197826709290660984615527619446184672674680247010238600781352653310607246891606337547138619440925162087571869826971590131163368746941251559516020682702494743992020970896483712983551164639202661806449510610389611041287530328183566718381854500827 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) 8c90ee201f8fe0525bf3ce0616bddd70b667dfbc . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (74 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ismir-explorer.ai.ovgu.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ismir.cs.ovgu.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ismir.cs.uni-magdeburg.de' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f1007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016d82e771310000040300483046022100a215587e4972ba0cdcaea69be65c1ae79aa3b2b0229a38552b320adba37d90de0221009b9858a2ab54c07a85e90ea0ae804f0cffb8fa493a6e18216932d4db6b6636e300760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d82e7713d000004030047304502201f933f9573e27a22b634575a41ba07c953904f756c1ffcb1909046e75f30efa3022100bf63b5183daa70fef93f2d63d2d1ee039a6458d5fc81af9cdea60449c44e50cf . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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