chat.ucc.ovgu.de
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:10:46:ca:4b:91:8a:3a:73:cd:9d:da:b2:c6:cd:b2:ba:d9 was issued on by Let's Encrypt.
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We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=chat.ucc.ovgu.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:10:46:ca:4b:91:8a:3a:73:cd:9d:da:b2:c6:cd:b2:ba:d9Serial Number (int): 266875472002397706935931518561563735931609
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 13:4f:2c:02:24:cc:43:65:e0:75:25:dd:6a:c9:fe:53:11:d1:79:53
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 24:00:ae:05:af:33:29:76:38:b2:9a:91:70:9b:78:e0:66:69:9e:ad
Fingerprint (sha256): 01:ec:0a:7e:0d:5d:19:06:79:b5:90:5b:ea:1d:0e:ce:55:91:8c:88:6f:03:7d:b9:a4:a8:1e:c0:b9:b1:85:87
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate chat.ucc.ovgu.de
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for chat.ucc.ovgu.de
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
chat.ucc.ovgu.de
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Certificate
The complete raw certificate details for chat.ucc.ovgu.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGAzCCBOugAwIBAgISAxBGykuRijpzzZ3assbNsrrZMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNzEwMjEyMDE5NThaFw0x ODAxMTkyMDE5NThaMBsxGTAXBgNVBAMTEGNoYXQudWNjLm92Z3UuZGUwggIiMA0G CSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDYJpOHhjADyimajOSak0yFJUn+ygwU 8eWdcu8a8Eg/jGlubBSfWMSLIlrEj9buwfuEhVgBCi/p6wRwi6YmwazVPV7glTi8 Xi0NsPGFS8AVwQXeRH77Opm2b3eefm1oBKOS+zUjrOlvDeAOJEtFWT6lhpDjBWDe TY8GIr1dA16ErrLYWw1JR78K+NMPznqcDI5mOgaPcEDL9DeX3kd7IckN7iiMIEfR LanliYSvUJrPqKMtdZPYpZrBtMK0Ubf+8L5/bN4ZuTs7HtHSGxZuBdN7ZnCAmaBB 3vec7yPk1r7cJNgJmGTlcCF/QEeqf40uEOBX6GV0k94qyYs9b3QFtWphnnkkrqMv tpqVdRWrWIGuFgTNmHSRyMkGCTlniVsnNVwtGick2QXEvvVBO9Zn1+Si0LcRetD1 Xl9jtz3rPB/ig1JlFVMT5QxNgo8f91HeXB9gEGI6l/cBsQLlM4tsImgC5rA5aQ7V hQJPed98AXx+rOngLNCvxxrhNLoxDkIjfHmuNcXiE4VATpI5homFPsMYb4o7BB06 D/7AOZzG5KET2z+C6JONMWTCLz2QsemeQre5RllqyY+KGVWE19c4Uq2vTk7kjAGT hhdoJwdOb3IlSPwUxohd/HNM5BqNg0XYteUMPAkGcgBWPJvJcMonbOIzRJW30LCE PxYbuNQPxvfp5wIDAQABo4ICEDCCAgwwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW MBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQT TywCJMxDZeB1Jd1qyf5TEdF5UzAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv 86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmlu dC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0Lmlu dC14My5sZXRzZW5jcnlwdC5vcmcvMBsGA1UdEQQUMBKCEGNoYXQudWNjLm92Z3Uu ZGUwgf4GA1UdIASB9jCB8zAIBgZngQwBAgEwgeYGCysGAQQBgt8TAQEBMIHWMCYG CCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCBqwYIKwYBBQUH AgIwgZ4MgZtUaGlzIENlcnRpZmljYXRlIG1heSBvbmx5IGJlIHJlbGllZCB1cG9u IGJ5IFJlbHlpbmcgUGFydGllcyBhbmQgb25seSBpbiBhY2NvcmRhbmNlIHdpdGgg dGhlIENlcnRpZmljYXRlIFBvbGljeSBmb3VuZCBhdCBodHRwczovL2xldHNlbmNy eXB0Lm9yZy9yZXBvc2l0b3J5LzANBgkqhkiG9w0BAQsFAAOCAQEAdvmT2Y/TvJ82 P+VVNXiogK6ia8UKNpBau0xiBI6U/d98bMiRlqqhq+Kb9AN3/ErYXUsb5daM+b6r Q9GuL44f0H8/CycMdE5W6/rtWcPLpn3uwcNsDP9FJEMB1Q5MXSvV/K4Z59e6vCiP cuLcO/7+ShpZaZH0H7oeo4uakoxnx9/cs48v/SPkxO1VZGe/BVD5EFpmC2paF6B2 AV1DpStYr06d4u/+HPx5Dkcx7DNcA18TvOSw/7VnN+QUZeD5NmheWTNGPIPZQipF 2uTeL+UphJU2Qez3qJ2KmabsWTCRomIGCs5fgOxk/V5BcOx4E34f9XsMnxeyQIhx phzUer7ICA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA2CaTh4YwA8opmozkmpNM hSVJ/soMFPHlnXLvGvBIP4xpbmwUn1jEiyJaxI/W7sH7hIVYAQov6esEcIumJsGs 1T1e4JU4vF4tDbDxhUvAFcEF3kR++zqZtm93nn5taASjkvs1I6zpbw3gDiRLRVk+ pYaQ4wVg3k2PBiK9XQNehK6y2FsNSUe/CvjTD856nAyOZjoGj3BAy/Q3l95HeyHJ De4ojCBH0S2p5YmEr1Caz6ijLXWT2KWawbTCtFG3/vC+f2zeGbk7Ox7R0hsWbgXT e2ZwgJmgQd73nO8j5Na+3CTYCZhk5XAhf0BHqn+NLhDgV+hldJPeKsmLPW90BbVq YZ55JK6jL7aalXUVq1iBrhYEzZh0kcjJBgk5Z4lbJzVcLRonJNkFxL71QTvWZ9fk otC3EXrQ9V5fY7c96zwf4oNSZRVTE+UMTYKPH/dR3lwfYBBiOpf3AbEC5TOLbCJo AuawOWkO1YUCT3nffAF8fqzp4CzQr8ca4TS6MQ5CI3x5rjXF4hOFQE6SOYaJhT7D GG+KOwQdOg/+wDmcxuShE9s/guiTjTFkwi89kLHpnkK3uUZZasmPihlVhNfXOFKt r05O5IwBk4YXaCcHTm9yJUj8FMaIXfxzTOQajYNF2LXlDDwJBnIAVjybyXDKJ2zi M0SVt9CwhD8WG7jUD8b36ecCAwEAAQ== -----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 266875472002397706935931518561563735931609 . . . . . . . . [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 2017-10-21 20:19:58 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-01-19 20:19:58 +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 'chat.ucc.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 881817874626486422790535059981390545967750110126465179625475005564003349724238880091512468983783299702836755880052609050959786343847884444226918621983559392316157108189808564925779312224512417521569100478770440243223380620939276842343816390277668861658325505795854303138114722842050779435594761134622914895488276562439272677620057708617723665187535446417982748039982541307048258302486223576953301260328916937250432480335329279597688476849385315672903645735240466905532057493126770989844409290991390099736826803312794362601776002027487722235519491909968354135202529277605879889497595408447292658872091173267331341328916646722890115956638346196112819206866257518108435316182084859474643868909690205678001688751035223746393935962182861254538327784254978438567729055035937074306106119282628113493312302155985218234357453876552674994678296411149088829745165227277049578875548517894471494508152608790910838863043853740824140440191599154101527466081225360653447464572468230618909298707890542645784478748653133301175950017487025826123653862110821313269978183481232978927595826818684259406889641183490926795800091504395348844525395322812295445524688567569856730305037225602490608167309718455646871914290307943217758114624362826347823146461671 . . . . . . . . . . . . . . . . . . . . [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) 134f2c0224cc4365e07525dd6ac9fe5311d17953 . . . . . . . . . . . . . . . . [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 (20 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'chat.ucc.ovgu.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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