kep.itb.ac.id

Issued by R3

About this certificate

This digital certificate with serial number 04:a3:ae:55:51:fe:ec:97:6c:d0:42:44:21:02:25:63:c1:a6 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=kep.itb.ac.id

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:a3:ae:55:51:fe:ec:97:6c:d0:42:44:21:02:25:63:c1:a6
Serial Number (int): 404146898214725859651641669770948867506598
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 1f:ca:69:2b:e6:e2:ea:bd:48:64:55:54:16:5f:6c:a9:e3:36:8d:4b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 50:1c:aa:be:d8:0b:5d:a0:01:a6:b3:e6:ca:82:19:cc:7b:75:72:ec
Fingerprint (sha256): 00:50:4f:bf:47:2b:29:3c:ba:20:6a:18:bc:6b:37:7d:f9:7d:9f:4f:f7:ed:a3:17:b3:f9:cf:32:a0:4f:13:b9

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

Revocation information

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

Check the revocation status for certificate kep.itb.ac.id

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kep.itb.ac.id

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

kep.itb.ac.id

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Certificate

The complete raw certificate details for kep.itb.ac.id in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE5jCCA86gAwIBAgISBKOuVVH+7Jds0EJEIQIlY8GmMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzA2MjQxNjU1NTZaFw0yMzA5MjIxNjU1NTVaMBgxFjAUBgNVBAMT
DWtlcC5pdGIuYWMuaWQwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCf
c2Sxt9LFBZ3eJQygxsaSUCN3b4pFOU4s2qTqJ4epdL/ZJ6RIv8QALcnpw922YVE6
Xdat6H1NRKgnR+WrIMlRS/6kXuPvJSQDDCcG3/ZyP88VWk6LS2z03FIae3I8+WP4
5exid7+L6FkxFGBIr37dTm5HebUpgj4IuWO432sjxrFeFkXW6bbD/+aLc1YvfZon
KghW4JCtCwMZaDvWZNPsbimqlHx2K75l+EW+2n4WmUU3wZ0d0T6wbEtSLfbS/lgH
QNigxFZNI+1QPlTfqoz5Jptx4dl0FajI3SjsTjaIsPAaRFQeoDr5QxL/JC7J2+OD
BGoVQaIaIBaB9PSIiMuxAgMBAAGjggIOMIICCjAOBgNVHQ8BAf8EBAMCBaAwHQYD
VR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0O
BBYEFB/KaSvm4uq9SGRVVBZfbKnjNo1LMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJ
QOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3Iz
Lm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcv
MBgGA1UdEQQRMA+CDWtlcC5pdGIuYWMuaWQwEwYDVR0gBAwwCjAIBgZngQwBAgEw
ggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdgC3Pvsk35xNunXyOcW6WPRsXfxCz3qf
NcSeHQmBJe20mQAAAYjujGEHAAAEAwBHMEUCIQCITJAOsksUC+VplQvkHXZZAM00
K70UWUh6HbjdKDBUpgIgGkPCVJwpz1KOf8Z1e5wV32L2gPPKU4DcDLeDuUAQgNsA
dQB6MoxU2LcttiDqOOBSHumEFnAyE4VNO9IrwTpXo1LrUgAAAYjujGEOAAAEAwBG
MEQCIEWBC/D4iZyfOKz3VzFZW0hXls/ZcL4hO0LuPXKbe36AAiAEyA7BfNoXuw2C
851d82C5CPJXpI5JVmrzmDNTcyQZ7TANBgkqhkiG9w0BAQsFAAOCAQEAhx5t/8Iy
EY2J/jMN8RfcBx4RIWI8058dEpDTrBIrgfoR3pMGSN0O4+gIZfUgUh88bOCMitEZ
aEQSI5IOfLx1nagOwWM8lWSfv6065tkBWRJ5nhrrT1109y84Lf/tBm1mQRV1h7kL
E1ySBcSwGNvlDnH/L0cH2I8+zKS7a0fwELrxndr4s7FlgA4Hbx9Yx1Tkhpr76bPH
xrMybEck4ostWXHIiUUriHTj3mkXvaI/n0JFMT3f6YZdeaR6HHFO7Gh52pwRcXNY
4xji+9USrRir0V7Po8/87CFTNlNkBsx2Pnhpi2clO5arSUB68rVmrKIxax1w5leN
6EUadEbgEfDLZQ==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAn3NksbfSxQWd3iUMoMbG
klAjd2+KRTlOLNqk6ieHqXS/2SekSL/EAC3J6cPdtmFROl3Wreh9TUSoJ0flqyDJ
UUv+pF7j7yUkAwwnBt/2cj/PFVpOi0ts9NxSGntyPPlj+OXsYne/i+hZMRRgSK9+
3U5uR3m1KYI+CLljuN9rI8axXhZF1um2w//mi3NWL32aJyoIVuCQrQsDGWg71mTT
7G4pqpR8diu+ZfhFvtp+FplFN8GdHdE+sGxLUi320v5YB0DYoMRWTSPtUD5U36qM
+SabceHZdBWoyN0o7E42iLDwGkRUHqA6+UMS/yQuydvjgwRqFUGiGiAWgfT0iIjL
sQIDAQAB
-----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 404146898214725859651641669770948867506598
 . . . . . . . . [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 2023-06-24 16:55:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-22 16:55:55 +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 'kep.itb.ac.id'
 . . . . . . . . [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 20128793064748873284016568794996558695568780824394534610634667729039398371527731313616926064957308176599294056233480135891283153622518852933482238444497356368064747303971276236086833504660754936703271242703957840932065704382765111381431186306505223309150279513452983888945727894051927804744778807779895232961570209190038805136560972915019004785744507429429040076142386790514705902988902369890844719437612664593281162007355054838765318411297781694254090903152057553926432602866280473996004015397804222337468552332135820510568640489956439359111553583221456333148964655763148740016180184356397701458154261502944575278001
 . . . . . . . . . . . . . . . . . . . . [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)
							1fca692be6e2eabd48645554165f6ca9e3368d4b
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kep.itb.ac.id'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000188ee8c61070000040300473045022100884c900eb24b140be569950be41d765900cd342bbd1459487a1db8dd283054a602201a43c2549c29cf528e7fc6757b9c15df62f680f3ca5380dc0cb783b9401080db0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000188ee8c610e0000040300463044022045810bf0f8899c9f38acf75731595b485796cfd970be213b42ee3d729b7b7e80022004c80ec17cda17bb0d82f39d5df360b908f257a48e49566af3983353732419ed
 . . . . [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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