cs.up.ac.za
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:6e:ce:ba:bf:eb:6c:94:a3:63:fd:63:af:12:53:0a:0d:80 was issued on by Let's Encrypt.
With 6 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=cs.up.ac.za
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:6e:ce:ba:bf:eb:6c:94:a3:63:fd:63:af:12:53:0a:0d:80Serial Number (int): 386154994715284054277217297296165037542784
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 25:5e:df:8c:f6:19:01:48:ad:9f:62:d8:be:e4:8b:22:e2:31:6e:5d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): ea:be:89:fa:7f:ee:c9:3d:56:de:0e:1d:f0:0d:23:21:d4:bd:a2:4c
Fingerprint (sha256): 0b:ee:0c:c3:9c:49:2f:e2:5f:1d:9b:6a:cd:67:07:25:c0:87:94:c0:af:a3:94:18:27:c0:f3:34:0c:5a:b0:18
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate cs.up.ac.za
6
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
ftp.cs.up.ac.za
nicog.cs.up.ac.za
www.cs.up.ac.za
cloud.cs.up.ac.za
cs.up.ac.za
ftp.cs.up.ac.za
nicog.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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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----- MIIFpjCCBI6gAwIBAgISBG7Our/rbJSjY/1jrxJTCg2AMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTExMDIwNDM2MjNaFw0y MDAxMzEwNDM2MjNaMBYxFDASBgNVBAMTC2NzLnVwLmFjLnphMIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3TpqvgSx+tv67Jf3adgWlyK6Tu+zxDhf4SUh rv8SQL21HkWYd+XYyawrKXzlCfBrFVwIWwRt08lJE65l/qwZt4kr/S1wUgW6SsWO 8IH1P1Jw7ASjjaKzXP8TcABYSJ5EN07+PHZSgDn++rU+v9x9Y8EBoGksYzdXTEL5 ljljFBpKMcXoPf61lir0iKCi5l8N10WNEzUfTqI9m8tqDoWbl8vbdB0xoKJvqoMp DoSqdDbF2/GmDfod1RbL2Y4KgcWnPT1jfcjGi+IMGjyYeNJXTBh0UszW3YeJ0k9e CTIIF8dYYlho4rVjMx/PFwoTOupxT4ntTv+9w3k1bXvdU5iCvwIDAQABo4ICuDCC ArQwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcD AjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQlXt+M9hkBSK2fYti+5Isi4jFuXTAf BgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRjMGEw LgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5vcmcw LwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcv MHAGA1UdEQRpMGeCEGNpcmcuY3MudXAuYWMuemGCEWNsb3VkLmNzLnVwLmFjLnph ggtjcy51cC5hYy56YYIPZnRwLmNzLnVwLmFjLnphghFuaWNvZy5jcy51cC5hYy56 YYIPd3d3LmNzLnVwLmFjLnphMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQB gt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3Jn MIIBAgYKKwYBBAHWeQIEAgSB8wSB8ADuAHUAsh4FzIuizYogTodm+Su5iiUgZ2va +nDnsklTLe+LkF4AAAFuKp1TZAAABAMARjBEAiAX03vJeRLaysFi4Ad/jU0EtB/r N00T16pBFZEIBmfgtQIgS88SNe19CZrG4zBts2rn3nY22YQLkHQuBtN9rSqTftoA dQBvU3asMfAxGdiZAKRRFf93FRwR2QLBACkGjbIImjfZEwAAAW4qnVOXAAAEAwBG MEQCIEDBa2L064udXcEIBfMNQ50C1TXVkevH1YP9kYrgJ+B5AiBCoPh0A9MoZFB+ sVFuMYfLbB2M4vJEKvnTjkXdf+8K3DANBgkqhkiG9w0BAQsFAAOCAQEAeodl/CYh WyVjLKqbHnluoVYIwCaU1DFgBSifzwpkgTd/qvPRCEHJDfCf7rhFW5hUaVCEj5mh wf7XdLmHt0Ff4p7Rt3fG5g0qkqQNHFyARFaOq9AZyGF9a/4v31rXsRaVU/ifo6n0 Ydx2+eY09TaJEP5rT0k/+a7Q+klc4peEGNi37MphAVeCRY4sWveBLA7xM6HDbsAi XRv2YpJ7Z7KE8fIcv7iuFK9hrHn+briOejPAEILNfNhdyUqbxJB71kahApE8sEqi 0FFX2VuvOumStNoqPODzJy5whizURnzCYkhcVr4GxMOL99lm+d5iMMVBC59qGdy6 zQFwnG2oxY8UUQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3TpqvgSx+tv67Jf3adgW lyK6Tu+zxDhf4SUhrv8SQL21HkWYd+XYyawrKXzlCfBrFVwIWwRt08lJE65l/qwZ t4kr/S1wUgW6SsWO8IH1P1Jw7ASjjaKzXP8TcABYSJ5EN07+PHZSgDn++rU+v9x9 Y8EBoGksYzdXTEL5ljljFBpKMcXoPf61lir0iKCi5l8N10WNEzUfTqI9m8tqDoWb l8vbdB0xoKJvqoMpDoSqdDbF2/GmDfod1RbL2Y4KgcWnPT1jfcjGi+IMGjyYeNJX TBh0UszW3YeJ0k9eCTIIF8dYYlho4rVjMx/PFwoTOupxT4ntTv+9w3k1bXvdU5iC vwIDAQAB -----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 386154994715284054277217297296165037542784 . . . . . . . . [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 2019-11-02 04:36:23 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-31 04:36:23 +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 27927471875068513817613416724724889468137119586427623020931403471202883613596969432838311156944888612369208324584684297577332868482217709765089252936683994816245469595907461075361373290387423942422342421559469491135529781814908535158511882163291419674583669997711701523785295663897444951551052226783733570435130922568483364497055428235426006059957619742689700413775158384371700891484878622827258250634092779007588454428671672923069934928056493107781792712377865711119197164636437220738542223619836887787686309871340029807625012703967949133297534164676613416141844412729934479578074045830379982563346070209675476370111 . . . . . . . . . . . . . . . . . . . . [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) 255edf8cf6190148ad9f62d8bee48b22e2316e5d . . . . . . . . . . . . . . . . [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 (105 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 'ftp.cs.up.ac.za' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nicog.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 (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) 00ee007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e2a9d53640000040300463044022017d37bc97912dacac162e0077f8d4d04b41feb374d13d7aa411591080667e0b502204bcf1235ed7d099ac6e3306db36ae7de7636d9840b90742e06d37dad2a937eda0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016e2a9d53970000040300463044022040c16b62f4eb8b9d5dc10805f30d439d02d535d591ebc7d583fd918ae027e079022042a0f87403d32864507eb1516e3187cb6c1d8ce2f2442af9d38e45dd7fef0adc . . . . [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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