www6.in.tum.de

Issued by R3

About this certificate

This digital certificate with serial number 04:f1:c7:0f:d5:d8:11:88:32:8a:01:62:c6:c1:5b:ef:bb:53 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=www6.in.tum.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f1:c7:0f:d5:d8:11:88:32:8a:01:62:c6:c1:5b:ef:bb:53
Serial Number (int): 430721792747873187140920566326663320681299
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 27:09:49:fc:37:66:69:fb:4e:fc:ed:d3:a5:ba:e5:7a:ca:82:0c:77
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 23:86:ab:25:ee:15:6f:83:4b:ef:45:68:3a:82:b4:5b:8a:b4:81:ce
Fingerprint (sha256): 00:c8:4c:c1:41:b6:26:ff:ca:e5:3b:7c:22:5f:23:aa:c6:82:81:57:40:67:b4:a1:66:ea:6e:79:61:37:1d:1d

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate www6.in.tum.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www6.in.tum.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

www6.in.tum.de

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Certificate

The complete raw certificate details for www6.in.tum.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA8S8QIl48xAckhzUcqWd8
XaeZ2W2pDjqwdFLOCQnZc9UI74ZDvEjmWbL/ZYnCpaS5KXb1LXYNha/8mSxRx9y3
gRCMayYCLDqMb7ASHf01mSmy37PsD3Oit1p7PifGWvtNAiz7vzdnwVjgHZhriBqa
g5XFfLE0uX9FL1Doz38YbXQkRPD5+8MN4QoEGf403uRfubWIk0krZ3ZN2V6nrJZX
TQZLeYjVRlw7IKUlcOvX88QvrJP/4UWcHZbMM+BUf9b10T/K25osd9wBtZ1Vu4kR
D2ey0idp+V4hd0ZBw9eVltwC4UF5yytSM8l4YTCHvdTbPn3O1T9L4nLwkyCwe5yl
VQIDAQAB
-----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 430721792747873187140920566326663320681299
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-16 02:42:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-15 02:42:22 +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 'www6.in.tum.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 30446639139120239086253889108881685296316491370936086508684356456008409264070320292928606583272536389232658558814227007758791289454961791002639182238198409922400783370678690111893393337724277031882893159851739229879550359255796981724862537856309935729676157194643209684712891253458293129950614390240252531995855253501013588430361292489835202121858868945440943565509497868712248282638530630423723702419245426921216811341223466791310291029257788711424313390650574651362899746536639161238333952605515345956932155747568105238201245389197077558364762636652694381760286320073522122514151694987748182717948489764951962723669
 . . . . . . . . . . . . . . . . . . . . [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)
							270949fc376669fb4efcedd3a5bae57aca820c77
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www6.in.tum.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f200770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c70b7d10400000403004830460221008ef009b5444eecb5708aa0e90b8a7f582965eb1dbdecca83c6bb5609d4af7d88022100a434616f917eb7259025f0f4ae96c916778a83587f17591ac94d1bdd9418a8a2007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018c70b7d108000004030048304602210088cb328efac354ab66a8ea8081c5fd4b950a6581a205255aaf03fe29b013cf38022100aef3006ece9c829cf66dd53c98d15112c67af008527270cbf9b5e993408177a0
 . . . . [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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