cs.up.ac.za
Issued by R3
About this certificate
This digital certificate with serial number 04:02:6d:7c:c7:67:fb:7a:ba:2e:ee:d8:d7:78:6e:45:43:d0 was issued on by Let's Encrypt.
With 11 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:
- 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=cs.up.ac.za
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:02:6d:7c:c7:67:fb:7a:ba:2e:ee:d8:d7:78:6e:45:43:d0Serial Number (int): 349275242201671718633487518494789724357584
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 39:b4:8c:f6:3c:33:84:e3:8e:c5:33:ac:9f:7b:f6:cb:08:3e:de:e3
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 08:5f:cf:0e:65:78:3f:d8:34:2c:a4:f4:40:4d:36:af:9e:c2:bc:1c
Fingerprint (sha256): 19:20:34:2d:5b:37:4a:ce:84:f0:ef:15:26:a1:d5:4b:74:fe:61:d3:69:1c:14:d8:34:ac:d1:f4:87:8a:1e:66
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate cs.up.ac.za
11
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for cs.up.ac.za
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
cirg.cs.up.ac.za
cloud.cs.up.ac.za
cs.up.ac.za
csedar.cs.up.ac.za
ftp.cs.up.ac.za
infpostgrad.cs.up.ac.za
inlpostgrad.cs.up.ac.za
javagently.cs.up.ac.za
nicog.cs.up.ac.za
portal.cs.up.ac.za
www.cs.up.ac.za
cloud.cs.up.ac.za
cs.up.ac.za
csedar.cs.up.ac.za
ftp.cs.up.ac.za
infpostgrad.cs.up.ac.za
inlpostgrad.cs.up.ac.za
javagently.cs.up.ac.za
nicog.cs.up.ac.za
portal.cs.up.ac.za
www.cs.up.ac.za
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exfreight.loadsure.net
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crm.iingxoxo.com
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eduvation.up.ac.za
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prod.28.slot.cdn.salesforce-communities.com
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eu-central-1-san1.blackboard.com
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Certificate
The complete raw certificate details for cs.up.ac.za in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFszCCBJugAwIBAgISBAJtfMdn+3q6Lu7Y13huRUPQMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzEyMjIxMzUxMDhaFw0yNDAzMjExMzUxMDdaMBYxFDASBgNVBAMT C2NzLnVwLmFjLnphMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArIX7 SdLdJNvFtgbiACl9LE9mkw1DfLflf5WnqalFbYjXjhnDcppH9E03/SYsk6zhp2b0 kaVoefcgmHptNFYfDcGPfMaZ3tBFUQEfj1Hw2qh36KW7Y+wt/mabjKi8no+S9iKB e9qZz3TofNRC8bkeuqmb6vhyOgNmGiQeheXiVgFe9V1gvojD2B+AdO1S6LqAMHbl tpOkDBXR/eo0I6UK9MCoU1seRFKeXGDTTbKahiI32muW5+hfB3RQucUb3TMxuxYg EIPmOLg3PU/AqYbO5+wPQXDidNvfQjF4ouMuxD2DntnWPBHkij8jMVE9wLrCGj4w QQ6JOJeB3T7NXrChVQIDAQABo4IC3TCCAtkwDgYDVR0PAQH/BAQDAgWgMB0GA1Ud JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW BBQ5tIz2PDOE447FM6yfe/bLCD7e4zAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDm H6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5v LmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzCB 5AYDVR0RBIHcMIHZghBjaXJnLmNzLnVwLmFjLnphghFjbG91ZC5jcy51cC5hYy56 YYILY3MudXAuYWMuemGCEmNzZWRhci5jcy51cC5hYy56YYIPZnRwLmNzLnVwLmFj LnphghdpbmZwb3N0Z3JhZC5jcy51cC5hYy56YYIXaW5scG9zdGdyYWQuY3MudXAu YWMuemGCFmphdmFnZW50bHkuY3MudXAuYWMuemGCEW5pY29nLmNzLnVwLmFjLnph ghJwb3J0YWwuY3MudXAuYWMuemGCD3d3dy5jcy51cC5hYy56YTATBgNVHSAEDDAK MAgGBmeBDAECATCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB3AEiw42vapkc0D+Vq AvqdMOscUgHLVt0sgdm7v6s52IRzAAABjJICOvgAAAQDAEgwRgIhANXXxbcrxuEl MaNzX9NEVqbsMxkC3XuevnpkayN0zicaAiEAhMBpQndwzD/94onG6Jhjj29WPvsG KSoXr8PBQbAhaioAdgAp0DobtnSqcRzTA1tlV8FPiqeLT+g4lEnspFP5RL0kaAAA AYySAjvGAAAEAwBHMEUCIQClGUQFYoXQpTOR0bJ8Y/odthIKFlJKpBg8vQGgwhd+ WgIgMSksb7Zp6FBhMu/RFRH6afe0Yuhvv+XHMxIBDyRkHYowDQYJKoZIhvcNAQEL BQADggEBAJ5et0ohKiz/DVezHserUFuxwb18wPRvkMhHyWcGy4CKxSDuIsf4KEZI SZaoOvSquidcCRBA5Lp7MxzTDeLRjG6DQT/FBFksxo69gdldjOx2C5//GGPJRgBB 7plO2u0TyzFqby+WVqg0A868e0ryjxjPT+AzdLmh1ClqkbzxbFKBCbCb+CkxvOJP M1oqc4S4sJ/+yjTtVyV2L4QVIQhpedp5BL/asSSYBHyxNmmOSvCn5pHe1fjdXjza Yodyy3v+MpLVm5zhKPLLCnH2O6dxof5ZVN26mHv9xw+FSgHrr55p1hoxxE5MM5gN te47WtDym6wkZgWyW06RUHpSLIQplnY= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArIX7SdLdJNvFtgbiACl9 LE9mkw1DfLflf5WnqalFbYjXjhnDcppH9E03/SYsk6zhp2b0kaVoefcgmHptNFYf DcGPfMaZ3tBFUQEfj1Hw2qh36KW7Y+wt/mabjKi8no+S9iKBe9qZz3TofNRC8bke uqmb6vhyOgNmGiQeheXiVgFe9V1gvojD2B+AdO1S6LqAMHbltpOkDBXR/eo0I6UK 9MCoU1seRFKeXGDTTbKahiI32muW5+hfB3RQucUb3TMxuxYgEIPmOLg3PU/AqYbO 5+wPQXDidNvfQjF4ouMuxD2DntnWPBHkij8jMVE9wLrCGj4wQQ6JOJeB3T7NXrCh 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 349275242201671718633487518494789724357584 . . . . . . . . [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 2023-12-22 13:51:08 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-21 13:51:07 +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 'cs.up.ac.za' . . . . . . . . [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 21779057241177580445959422929995086830629578892346797515343557869432048126932810157281373452637987148043592891628533726216900165482796342794053554277304709736737697423161681054401290500713662922213829612121112040944456275658853819662530919638655536559461587870623991098432367986896841037251871822005056337379289690243175647548259090658466937730446886337734870468108468022785545149340323491954583817666301775860755636931909608238662150788647503949672170984164700820863211857861280597909764517425227584599232149180095047025546812912527791165140880042622521407756750839856465425868394734026910186912550297657230115250517 . . . . . . . . . . . . . . . . . . . . [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) 39b48cf63c3384e38ec533ac9f7bf6cb083edee3 . . . . . . . . . . . . . . . . [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 (220 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cirg.cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cloud.cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'csedar.cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ftp.cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'infpostgrad.cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'inlpostgrad.cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'javagently.cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nicog.cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'portal.cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cs.up.ac.za' . . . . . . . . . . . . . . . . [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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c92023af80000040300483046022100d5d7c5b72bc6e12531a3735fd34456a6ec331902dd7b9ebe7a646b2374ce271a02210084c069427770cc3ffde289c6e898638f6f563efb06292a17afc3c141b0216a2a00760029d03a1bb674aa711cd3035b6557c14f8aa78b4fe8389449eca453f944bd24680000018c92023bc60000040300473045022100a51944056285d0a53391d1b27c63fa1db6120a16524aa4183cbd01a0c2177e5a022031292c6fb669e8506132efd11511fa69f7b462e86fbfe5c73312010f24641d8a . . . . [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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