cirg.cs.up.ac.za
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:fa:1d:3d:26:40:9a:76:04:05:79:49:5b:07:37:2c:33:5f was issued on by Let's Encrypt.
With 7 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=cirg.cs.up.ac.za
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:fa:1d:3d:26:40:9a:76:04:05:79:49:5b:07:37:2c:33:5fSerial Number (int): 346446314643351459693940935781858411295583
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 13:25:13:51:fb:cd:e5:b0:07:c5:ff:cd:7e:2e:9b:72:49:05:1d:cc
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): b0:49:fd:1c:2c:fe:6c:f5:48:c4:55:c5:43:cc:25:c2:d2:97:51:df
Fingerprint (sha256): 06:3d:7a:91:64:75:13:1c:28:d9:81:b2:9f:f9:3b:0f:f4:64:3c:13:36:67:7f:33:6b:00:d0:80:8f:a3:fa:66
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate cirg.cs.up.ac.za
7
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for cirg.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
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
cloud.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
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Certificate
The complete raw certificate details for cirg.cs.up.ac.za in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF3DCCBMSgAwIBAgISA/odPSZAmnYEBXlJWwc3LDNfMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMDMxNDMyMjdaFw0x OTA2MDExNDMyMjdaMBsxGTAXBgNVBAMTEGNpcmcuY3MudXAuYWMuemEwggEiMA0G CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDC68wk5XtOYgZjJhaNAN+tjVXK2ezy 4ch3bZ++QugPz2Z8NgK2Ye0bb+KO8oltO4THUpnH8EIvI80FDzH1KadbcAumnzy3 trFq2BkoJlH/yQ3Rov1ZNNWMufsMTl84S6Crp9vhKUBOlYYlCEW6GFWbZJ1rDJQx D0JZNNjb+I6kCN8E2ves0Q3X1ENokZ4KU8KSDjP3/5fJd4QR+IGECE0M0T8AkErJ E7rMmptpXkIxklwc7/4dwWpVy3v2AFZm41TwiIo3z677l7mEaPPFNfEkdIfllvPz F7m50uWX1H00DW/XtJleVKmQUNwoMuwsGsKlIFg5oytLpsn9EdRm6k7lAgMBAAGj ggLpMIIC5TAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsG AQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFBMlE1H7zeWwB8X/zX4um3JJ BR3MMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEB BGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0 Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0 Lm9yZy8wgZ8GA1UdEQSBlzCBlIIQY2lyZy5jcy51cC5hYy56YYIRY2xvdWQuY3Mu dXAuYWMuemGCEmNzZWRhci5jcy51cC5hYy56YYIPZnRwLmNzLnVwLmFjLnphghdp bmZwb3N0Z3JhZC5jcy51cC5hYy56YYIXaW5scG9zdGdyYWQuY3MudXAuYWMuemGC FmphdmFnZW50bHkuY3MudXAuYWMuemEwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYL KwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlw dC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdgB0ftqDMa0zEJEhnM4lT0Jw wr/9XkIgCMY3NXnmEHvMVgAAAWlEL1taAAAEAwBHMEUCIQCEbfavcaMUDBwR8c1Y ynsKwLlO53XmTWZqvfOLd4JmggIgV6PPXE24yme0ttC8WOE3QoyV8d+9Epuke1Mt PW9dZ8UAdQApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTDDPTlRUf0eAAAAWlEL1mu AAAEAwBGMEQCIHkQX77NWlAsdydSjFa6BgC10xUHZtKbeLfgL8MVufXlAiAD+aqP XfDCEf89SVZ035Rv7ladP0DPG99u0UwCaB03lTANBgkqhkiG9w0BAQsFAAOCAQEA SJxpgGbNl0L83z0+Cgacyarqm5DhJVSG7aUZ24qDiNhVcMFuUQr2JHb/neRsRAww bWPDGeLiozlkkptULCAGSU1cIU9WQJeBOx8l0UQIAc30A3JkXNJNrTQ6NuomVXUn ujXvIgf8Zfn4V70gVtHpNrkJAQpK2XUr8To/yMoIr1ePng1rlQMphkSBe8ASX4+M 3Hx3kODqX17eZx2a6hEEP8W/8/wmpQscOHeTY4p1SYKfEfEEi2odz++VPuO2ntfj ktZfSc0vXGCbnPZKStvRCKxv5GbzC6o2VBCTQoi8u7SpwRdWq8XobuOI417j8Buc usyZVbMF+rHo52b0WUrHGQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwuvMJOV7TmIGYyYWjQDf rY1Vytns8uHId22fvkLoD89mfDYCtmHtG2/ijvKJbTuEx1KZx/BCLyPNBQ8x9Smn W3ALpp88t7axatgZKCZR/8kN0aL9WTTVjLn7DE5fOEugq6fb4SlATpWGJQhFuhhV m2SdawyUMQ9CWTTY2/iOpAjfBNr3rNEN19RDaJGeClPCkg4z9/+XyXeEEfiBhAhN DNE/AJBKyRO6zJqbaV5CMZJcHO/+HcFqVct79gBWZuNU8IiKN8+u+5e5hGjzxTXx JHSH5Zbz8xe5udLll9R9NA1v17SZXlSpkFDcKDLsLBrCpSBYOaMrS6bJ/RHUZupO 5QIDAQAB -----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 346446314643351459693940935781858411295583 . . . . . . . . [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 2019-03-03 14:32:27 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-01 14:32:27 +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 'cirg.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 24606507213758243844612531122540872280011739392378784102476300171608275765467798053369017189140331673205159435924205486642161666159723498820517993887004990608099968438342549621068163005279349948602903192269868442728527204979608652157134476811488966431393239626786732691379081044633000294121186691269687149573912928753779652089561177154189355428345866022560774264359835955693994144321846230511686842315853681849877329330277122277729018473310113936989838275344582794050785093273261568710180499866335720079272857775234803004591435151617308239376395027302299040823883667243828487827951233023573703824321741986407253692133 . . . . . . . . . . . . . . . . . . . . [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) 13251351fbcde5b007c5ffcd7e2e9b7249051dcc . . . . . . . . . . . . . . . . [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 (151 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 '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: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) 00ef007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000169442f5b5a0000040300473045022100846df6af71a3140c1c11f1cd58ca7b0ac0b94ee775e64d666abdf38b77826682022057a3cf5c4db8ca67b4b6d0bc58e137428c95f1dfbd129ba47b532d3d6f5d67c5007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000169442f59ae0000040300463044022079105fbecd5a502c7727528c56ba0600b5d3150766d29b78b7e02fc315b9f5e5022003f9aa8f5df0c211ff3d495674df946fee569d3f40cf1bdf6ed14c02681d3795 . . . . [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) 00489c698066cd9742fcdf3d3e0a069cc9aaea9b90e1255486eda519db8a8388d85570c16e510af62476ff9de46c440c306d63c319e2e2a33964929b542c2006494d5c214f564097813b1f25d1440801cdf40372645cd24dad343a36ea26557527ba35ef2207fc65f9f857bd2056d1e936b909010a4ad9752bf13a3fc8ca08af578f9e0d6b9503298644817bc0125f8f8cdc7c7790e0ea5f5ede671d9aea11043fc5bff3fc26a50b1c387793638a7549829f11f1048b6a1dcfef953ee3b69ed7e392d65f49cd2f5c609b9cf64a4adbd108ac6fe466f30baa365410934288bcbbb4a9c11756abc5e86ee388e35ee3f01b9cbacc9955b305fab1e8e766f4594ac719