www.cin.uni-tuebingen.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:af:26:17:6e:ef:17:88:e5:f8:21:99:aa:c7:34:8a:6d:c4 was issued on by Let's Encrypt.

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=www.cin.uni-tuebingen.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:af:26:17:6e:ef:17:88:e5:f8:21:99:aa:c7:34:8a:6d:c4
Serial Number (int): 408049190274880661694521375287075354078660
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 52:f6:7a:4f:6f:50:1a:0c:ec:59:5a:1b:e0:b7:51:b9:0b:5b:90:5e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c8:e8:18:71:59:10:b5:71:f1:06:dc:b2:0c:d5:04:47:b9:2c:6b:94
Fingerprint (sha256): 03:92:53:a0:2f:33:3f:d6:5f:a6:e2:7c:ed:1a:3d:15:ce:31:2b:46:29:0e:28:8d:17:66:1d:b2:1d:2a:b7:76

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.cin.uni-tuebingen.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.cin.uni-tuebingen.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

www.cin.uni-tuebingen.de

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Certificate

The complete raw certificate details for www.cin.uni-tuebingen.de in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAp1ZzsUL3lXAcuVCho4cy
+2AfZ1aLxRRqwDSEqntfhWTTHZjQ+Im8Baar2Byd2qFQeFSUKQT7OpgVxy4aWubR
0KlgdJYfHZC5rwCTpWk2hl7gFF29oYYPHv1VpEb+uV6Id4BxRfbx+PeAU6DtXVz8
UCTAyN2Z8BaG/M5Nc2Z3o866GzF7KV3bfczgUUy4gBk4ThIspUTpJ9O4HCbN68vA
wcH2UhtTWqqishidLWVz/5Yen/0LaIqyexxcDSVR00NEl4GyatY1E12IaQk5vIOC
2Mzw7lBp54W9x+XL/Nu0+MY55vtAFXgxQa+AiTwWwsTtnnG87Zqdf0GmjWfZabLY
4wIDAQAB
-----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 408049190274880661694521375287075354078660
 . . . . . . . . [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 2019-09-12 21:53:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-11 21:53:09 +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 'www.cin.uni-tuebingen.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 21124427961713257887588101459130635222473732166390528940538239960517079483567562331053707683324654631380111486858537048708454016495830078000133254625892478445146308412900583501896635027872747335481681708284281265874659995425362253443317211423327007190525803145273249788086814001312219555727176371438772159774486352947679632362317760218449733941176120207942718381768792415322220331359709687521886617047845349503672911262740847599321225069108470463737787221187502151365183827758516510619656016460505157793404078273012589773092844810515128308447533798603398301094282156209537724054576182901262570240992616246799164954851
 . . . . . . . . . . . . . . . . . . . . [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)
							52f67a4f6f501a0cec595a1be0b751b90b5b905e
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cin.uni-tuebingen.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016d27ae2e59000004030046304402202b19f6abbb8ea9c26aa36194f5ea10f4b9ba491685e5fad5503c139e180a522202201b6a8b53cf65557353ddf0836756cbbe66ea1b12849890e0d2e75185450a669c007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d27ae2d5d00000403004730450221008a77be6086af949bdd794df8707d34c306d8ec68e5e757a853bc1ced6cc51dff0220736f5d82d1a8dbab56e121475a02776703ea3884a0d93e7db29bf8e25739fcc2
 . . . . [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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