synnas.wtech.rub.de
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:ec:ae:9e:3e:84:88:7f:a4:53:4d:90:a4:6e:4b:e2:3f:3d was issued on by Let's Encrypt.
With 2 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=synnas.wtech.rub.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:ec:ae:9e:3e:84:88:7f:a4:53:4d:90:a4:6e:4b:e2:3f:3dSerial Number (int): 428987889642562444977708600541936783343421
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 10:87:14:00:e6:92:52:fa:c4:6a:bc:ab:44:fd:a8:f5:cd:63:d1:1f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): f7:8b:c0:52:b0:23:6e:96:3a:bf:99:24:bc:ec:ef:33:87:bc:fa:60
Fingerprint (sha256): 03:19:e0:63:25:d6:14:15:2b:2e:d7:dc:48:b5:91:17:d5:90:54:0a:27:be:55:ca:8c:07:d9:d7:ca:a6:6c:0f
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate synnas.wtech.rub.de
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for synnas.wtech.rub.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
synnas.wtech.rub.de
synnas.wtech.ruhr-uni-bochum.de
synnas.wtech.ruhr-uni-bochum.de
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Certificate
The complete raw certificate details for synnas.wtech.rub.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFfTCCBGWgAwIBAgISBOyunj6EiH+kU02QpG5L4j89MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMTIxMjExNDBaFw0x OTA2MTAxMjExNDBaMB4xHDAaBgNVBAMTE3N5bm5hcy53dGVjaC5ydWIuZGUwggEi MA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCViRBDBuy5kEMgQ2OulYTfeFaL twLmY5ziKVTq0/IH+m/sNzTdze+SCItyDTUZo6Zu7O2H8/jYy1hQL2lGQuA2TcmL bDnc62riMfxFy0Q4jYTYEbKH92TtXMQjwwdx+WzQESPlD0BZJsHfYUL7x86prN7D Ak8HGAMFndQuFv83ZaRbU2y5lMtb4RRyUY+wBbyCUD0G0GKpTM3ADHSEGdtgMc+S YGE9drrtdXQe3LG8fgCAb/B28FIvyqq/TdVHGPpT3InktkE/yFkhTHZtO5dCHDRC cS7mB+W+4/oD6ymBECK4yaOhzntoX/EWQl7YXemXC7bphGSwMzosjZOpEN0LAgMB AAGjggKHMIICgzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEG CCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFBCHFADmklL6xGq8q0T9 qPXNY9EfMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUF BwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNy eXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNy eXB0Lm9yZy8wPwYDVR0RBDgwNoITc3lubmFzLnd0ZWNoLnJ1Yi5kZYIfc3lubmFz Lnd0ZWNoLnJ1aHItdW5pLWJvY2h1bS5kZTBMBgNVHSAERTBDMAgGBmeBDAECATA3 BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNy eXB0Lm9yZzCCAQIGCisGAQQB1nkCBAIEgfMEgfAA7gB1AHR+2oMxrTMQkSGcziVP QnDCv/1eQiAIxjc1eeYQe8xWAAABaXIHsqEAAAQDAEYwRAIgDApOz3/tWV0M0OPj Nk7aKb6l8s72ZLOaXyh+aFVI5yECIAJgmn1Lsuh5cez+aUT9R89Enz+JTbkUzhba U7DMFsbFAHUAKTxRllTIOWW6qlD8WAfUt2+/WHopctykwwz05UVH9HgAAAFpcge0 tQAABAMARjBEAiAvz81+jji+eq3ciQaEHAck8koopdNFPEEU51Bsv61EnQIgdkZy kryM3ACxKuIQQ9VNX9/jvs7zCLIAtuomFVFyxjswDQYJKoZIhvcNAQELBQADggEB ADPAnh+GbfTIvJmCSHPeP4bsQY3Sb4K1ZqW8DGBs2POPSXkTU5mjULGFOz4nvAxI x4POA4xdQYH+eBiCfjhjXA1lLKW8EAh8ns4M/SUivxezJpFhoxF6WnHOYSyHKNde iJvEq4I/6WbonmGWWY+dK5SdAv4KJQhM40PRNIhSB1WdutH2LgF+vgmSU79UKCFR cJNUlL2b3DzKdRvzguJfTCEEfLQi8xsFWuoE3wmjbt44Od+RV/nD+VYv7e26sTaM WCcwV6L+Ju8yQLt+wNVGx3cpQZMktfIEyeASbzUDl9dDhDlRKnufM6ZUB1yb66yL cM01RYUCemu67FOnPT+wD0g= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAlYkQQwbsuZBDIENjrpWE 33hWi7cC5mOc4ilU6tPyB/pv7Dc03c3vkgiLcg01GaOmbuzth/P42MtYUC9pRkLg Nk3Ji2w53Otq4jH8RctEOI2E2BGyh/dk7VzEI8MHcfls0BEj5Q9AWSbB32FC+8fO qazewwJPBxgDBZ3ULhb/N2WkW1NsuZTLW+EUclGPsAW8glA9BtBiqUzNwAx0hBnb YDHPkmBhPXa67XV0HtyxvH4AgG/wdvBSL8qqv03VRxj6U9yJ5LZBP8hZIUx2bTuX Qhw0QnEu5gflvuP6A+spgRAiuMmjoc57aF/xFkJe2F3plwu26YRksDM6LI2TqRDd CwIDAQAB -----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 428987889642562444977708600541936783343421 . . . . . . . . [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 2019-03-12 12:11:40 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-10 12:11:40 +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 'synnas.wtech.rub.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 18877095982071017108849168063304656653159382040590586980711768071321289759767692439073606982870367161386529146150403530584147228227805513574334959011783401489420304770826939571325497204319713431846266632084400634611211606939211631064987178568167395428983103705753884585139902727819055195631812769180766662449550525398031329478768478076030782030082477106709435576097955675667008684170219999778495551512236365419777980261604903158018779421819623830859114805464820525015621903966427005957209514590250741498130468513803790322813534453791214783584016413504609939118108302286198591440272040163598666913344259834707620977931 . . . . . . . . . . . . . . . . . . . . [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) 10871400e69252fac46abcab44fda8f5cd63d11f . . . . . . . . . . . . . . . . [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 (56 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'synnas.wtech.rub.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'synnas.wtech.ruhr-uni-bochum.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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc56000001697207b2a1000004030046304402200c0a4ecf7fed595d0cd0e3e3364eda29bea5f2cef664b39a5f287e685548e721022002609a7d4bb2e87971ecfe6944fd47cf449f3f894db914ce16da53b0cc16c6c5007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001697207b4b5000004030046304402202fcfcd7e8e38be7aaddc8906841c0724f24a28a5d3453c4114e7506cbfad449d022076467292bc8cdc00b12ae21043d54d5fdfe3becef308b200b6ea26155172c63b . . . . [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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