kep.itb.ac.id

Issued by R3

About this certificate

This digital certificate with serial number 04:fe:47:d3:50:cc:55:58:af:9e:0c:9d:5c:23:f3:83:61:f7 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:fe:47:d3:50:cc:55:58:af:9e:0c:9d:5c:23:f3:83:61:f7
Serial Number (int): 434976337326078963067478666786720492773879
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: e0:17:3a:36:96:f7:bc:82:48:86:1b:8b:4b:74:9f:2e:3a:6b:dc:ba
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0d:23:9a:4d:57:c5:56:58:a0:44:6b:71:59:31:b6:e6:c8:81:d5:7e
Fingerprint (sha256): 02:d0:21:92:72:34:f2:67:ce:e4:b1:28:75:ae:f4:ec:a6:70:f7:51:02:9b:60:fe:62:ab:39:46:2d:99:67:19

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-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA34rlBiec0nP2SxwN0oKj
2DvcQx/O5ms3oXKVWaxCYZGlmzD6epRRrnkEPXkosZpSoSFSNVz/7eWRGCojM5BX
N+GTpU1aVH0ggrThLlT8Nl/820T4RyTkRTqJbO7u//VP9ynt6CA/Kku8Wc/mAvri
WgswBJk8pYHNV7EBDXoIj2Z6Bjyjkl32XsSOXQ+5YWbWA/rq19YAW7mWovNkN0DP
Uyuv/UZ1YKAM9NdDVncSn8kUt0ip0BzEkcORUbqhgZTbePqsAtROFA0P4A2nm8B+
kLFH8w08tBEqinRUzHB2QnOYaSGjF6UOUzSP4iBDnU+JvM0oOtywvcyPoP71K5tV
TQIDAQAB
-----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 434976337326078963067478666786720492773879
 . . . . . . . . [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 2023-08-26 16:46:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-24 16:46:55 +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 28219633499812235981334212855376881188697871773564228442166149168730277647842625294776827006591089848948026352321822720932700482922564690126807904069553898939087294600279934756921288447902197611328636616697508030030429312378286895677420861062728368831378607228092647427332914428836341328827342203463576250356837993497774040292193168850942195778970373111171557461423475759669648560152051940740867130718365520352274268930161565498201056895460459269712162523161241265529040855376765801484727342482661545163465736487322797543132049568382957757893286421836661851741326447477686406185790933312460583588283975115584843765069
 . . . . . . . . . . . . . . . . . . . . [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)
							e0173a3696f7bc8248861b8b4b749f2e3a6bdcba
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a32f4c6fa000004030046304402205e1f0cdd79cfe3aad78b1370886d418e03996eb3cdf5c4f1c73cfe8d89728ef10220196c4805c0f654aaa34871387e34de0edc270a97bd4b23301863e54a65ee2bbc0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018a32f4c70800000403004630440220751285d10353aa6e29876feabfb1834e9a8a3ca1f04d403934ceefbbe43d91f10220772a17d7ddfeda99bf97dd4951eff91f3f38f0357a9ea73fe9ab7af24490dc46
 . . . . [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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