studenthub.atu.ie
Issued by R3
About this certificate
This digital certificate with serial number 04:9c:33:f7:3c:d1:ad:ed:14:8d:4e:d5:ca:ff:90:e3:d9:32 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=studenthub.atu.ie
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:9c:33:f7:3c:d1:ad:ed:14:8d:4e:d5:ca:ff:90:e3:d9:32Serial Number (int): 401602267325373565402478192561533604845874
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 20:30:41:cc:fe:84:82:cb:65:ff:8f:0e:d6:a5:ac:5a:b6:f3:ff:ac
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): c8:88:6e:4b:1b:2c:96:9e:85:4b:13:e8:18:e1:cf:1b:78:fc:14:a8
Fingerprint (sha256): 3b:e9:56:a5:83:d8:ec:81:f4:79:fb:81:8c:2c:2a:ae:81:bc:3d:d5:4f:75:7f:17:7b:04:a1:7b:6e:11:48:87
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate studenthub.atu.ie
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for studenthub.atu.ie
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
studenthub.atu.ie
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Certificate
The complete raw certificate details for studenthub.atu.ie in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFKTCCBBGgAwIBAgISBJwz9zzRre0UjU7Vyv+Q49kyMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzAzMTYxMDA0MDhaFw0yMzA2MTQxMDA0MDdaMBwxGjAYBgNVBAMT EXN0dWRlbnRodWIuYXR1LmllMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC AQEAwQ6Nc457dx4SXpmMvd4aG17/kpEdNT2d9AspDI0CMssfFLWNsnlNlzfL85E9 QazNO0mQPYR+ZzLyXcKzDugq/GRtE/4cPeEdthM8D4+NhUDcrBOrLJedbUrUi9oU kfwdKRnXXlyEaM2TKdTT7iHWm8+vXofsq9ux++Wtp4Ih/8Ag+NGIOM3KoALBgpft 0xhL9yc9epgGVNz5AO1JhPUUFbJavLLFNerKMZDIkBd9E0ABxX9jYmyv+0jUMjDH My8rW6Wet87FI3p9tYI5DFLdhojG+R654woJbO5UHmbOUfhXwz9+x0PupuZ5sLNt qOZW4Yzfkkvefh2joI9YUC01xQIDAQABo4ICTTCCAkkwDgYDVR0PAQH/BAQDAgWg MB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0G A1UdDgQWBBQgMEHM/oSCy2X/jw7WpaxatvP/rDAfBgNVHSMEGDAWgBQULrMXt1hW y65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6 Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iu b3JnLzAcBgNVHREEFTATghFzdHVkZW50aHViLmF0dS5pZTBMBgNVHSAERTBDMAgG BmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3Bz LmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB2ALc++yTf nE26dfI5xbpY9Gxd/ELPep81xJ4dCYEl7bSZAAABhuoXbK8AAAQDAEcwRQIhAOyT oBtRK8QOnx7k0hwaGcFiemjrBrbWhRkh6fS8yHuYAiBeyu3t9mlwpSkMjOi83ygA R24AxiXmFmuJ/vi1iInQlgB3AHoyjFTYty22IOo44FIe6YQWcDIThU070ivBOlej UutSAAABhuoXbLwAAAQDAEgwRgIhAMSmU9gllcDU4QGd4cVEZqD2O2DoaU6FdXSE rb7bXkQuAiEAteEtqaJd0DFsGPXXAAgS67sMyYoogWJwH1KjEMMfzokwDQYJKoZI hvcNAQELBQADggEBAIMD00zs4W0cFZdAM4zRYISBIge9LxA5b8dyVWCKzakJvGZM mf1vxwBEepzvzIlfSdihR4ArVNRJeDu9FHuiWNg0hSK9OoccCeWrsTzQtObg8Epa RhSTxHqo+ivblp2TajIbIKAjtum2W0EZuZfi+waV7SANAJLJnTXP1Ft0T2m3Y9WD 7kSNrAngjKzixu0VnGobaAJ215zsKoMTABrbeP+ZaFF++tWfQzfopN3ZGO6R/8hP 6mWkpOPP5pyOE01Q3NbQaXY0WmHwEcCp2hqzdoFds0T5W8lJADGDeQkaMr4/9q7Z ufZuf2KuSP/Znd6pa6JAElIBZw23vMkvpoXc4FI= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwQ6Nc457dx4SXpmMvd4a G17/kpEdNT2d9AspDI0CMssfFLWNsnlNlzfL85E9QazNO0mQPYR+ZzLyXcKzDugq /GRtE/4cPeEdthM8D4+NhUDcrBOrLJedbUrUi9oUkfwdKRnXXlyEaM2TKdTT7iHW m8+vXofsq9ux++Wtp4Ih/8Ag+NGIOM3KoALBgpft0xhL9yc9epgGVNz5AO1JhPUU FbJavLLFNerKMZDIkBd9E0ABxX9jYmyv+0jUMjDHMy8rW6Wet87FI3p9tYI5DFLd hojG+R654woJbO5UHmbOUfhXwz9+x0PupuZ5sLNtqOZW4Yzfkkvefh2joI9YUC01 xQIDAQAB -----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 401602267325373565402478192561533604845874 . . . . . . . . [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 2023-03-16 10:04:08 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-06-14 10:04:07 +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 'studenthub.atu.ie' . . . . . . . . [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 24371168985601836819217462184641962855199705918075023820200363361867855449678918028299170929021241133822121519241602155205940046483352542630400997383045318209942498662681795624984694943077417530178837967468146298949724728536577300287106280978713972330301412085663255167972002312627707088171066031921474336410221628958327899207399694346408491221552440542081572514328344981064594392698282851054449342054704998220891322854545620120056918042000811417796334188065066994899952195013349984400474050885920214192405368505500453988313614223954868451953137682278772848442793612505563658513321133931514741444967498541418356225477 . . . . . . . . . . . . . . . . . . . . [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) 203041ccfe8482cb65ff8f0ed6a5ac5ab6f3ffac . . . . . . . . . . . . . . . . [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 (21 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'studenthub.atu.ie' . . . . . . . . . . . . . . . . [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) 00f1007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000186ea176caf0000040300473045022100ec93a01b512bc40e9f1ee4d21c1a19c1627a68eb06b6d6851921e9f4bcc87b9802205ecaededf66970a5290c8ce8bcdf2800476e00c625e6166b89fef8b58889d0960077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000186ea176cbc0000040300483046022100c4a653d82595c0d4e1019de1c54466a0f63b60e8694e85757484adbedb5e442e022100b5e12da9a25dd0316c18f5d7000812ebbb0cc98a288162701f52a310c31fce89 . . . . [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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