mail.kcis.ntpc.edu.tw

- Kang Chiao International School -

Issued by TWCA Secure SSL Certification Authority

About this certificate

This digital certificate with serial number 47:e8:00:00:00:07:40:29:6d:03:13:63:6b:3e:68:6a was issued on by TAIWAN-CA.

This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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 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)

Kang Chiao International School

Organization: Kang Chiao International School
State / Province: Taiwan
Locality: New Taipei
Country: TW

TAIWAN-CA

Organization: TAIWAN-CA
Country: TW

This certificate will expire on

Certificate Details

Serial Number (hex): 47:e8:00:00:00:07:40:29:6d:03:13:63:6b:3e:68:6a
Serial Number (int): 95579800571917872462353233004677982314
Serial Number lenght: 127 bits, 16 octets

SubjectKeyId: e6:4f:dd:48:e4:81:2c:fc:4d:e0:99:90:14:50:f0:3d:7d:6a:a5:7f:41:28:7c:ee:7f:92:24:e9:32:2b:2d:3c
AuthorityKeyId: 92:e7:fa:62:16:71:8c:f3:97:71:42:c6:06:a7:e0:46:61:4b:5c:b6

Fingerprint (sha1): ad:e2:5c:a8:d0:cb:8f:ba:07:29:70:86:fe:2d:53:14:1d:d5:b8:18
Fingerprint (sha256): 91:b0:93:d9:eb:17:61:0c:76:6e:fe:a1:e6:d5:23:d5:30:7a:6a:c3:12:b4:f1:b5:5c:ad:88:69:b7:c9:0e:d9

Issuing Certificate URL: http://sslserver.twca.com.tw/cacert/secure_sha2_2023G3.crt

Revocation information

OCSP Server: http://twcasslocsp.twca.com.tw/
CRL Distribution Point: http://sslserver.twca.com.tw/sslserver/Securessl_revoke_sha2_2023G3.crl

Check the revocation status for certificate mail.kcis.ntpc.edu.tw

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.kcis.ntpc.edu.tw

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

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

mail.kcis.ntpc.edu.tw

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mail.kcis.ntpc.edu.tw
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web180.ches.ntpc.edu.tw
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opensource.ntpc.edu.tw
web.jljh.ntpc.edu.tw
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w15.tsces.ntpc.edu.tw
web.ntpc.edu.tw
qslibrary.kcis.ntpc.edu.tw
cooc.eces.ntpc.edu.tw
nprog1.nssh.ntpc.edu.tw
rrcp.ntpc.edu.tw
web.fsps.ntpc.edu.tw
ssl.url.com.tw
ao.ntpc.edu.tw
mail.ghes.ntpc.edu.tw
isas.test.ntpc.edu.tw
www.tjsps.ntpc.edu.tw
phplibrary.slps.ntpc.edu.tw
www.ecjh.ntpc.edu.tw
nprog1.nssh.ntpc.edu.tw
www.lkjh.ntpc.edu.tw
uhow.ntpc.edu.tw
www.sdes.ntpc.edu.tw
web.slps.ntpc.edu.tw
www.thps.ntpc.edu.tw
lib.tykjh.ntpc.edu.tw
web.jdjh.ntpc.edu.tw
www.international-education.ntpc.edu.tw
www2.sies.ntpc.edu.tw
www.wses.ntpc.edu.tw
pos.kcis.ntpc.edu.tw
library.kcis.ntpc.edu.tw
www.sdhs.ntpc.edu.tw
mt.sjps.ntpc.edu.tw
www2.chues.ntpc.edu.tw
www.gmes.ntpc.edu.tw
www1.sles.ntpc.edu.tw
nas.ntvs.ntpc.edu.tw
ssl.url.com.tw
cdtower.tjsps.ntpc.edu.tw
tplc.ntpc.edu.tw
www.lles.ntpc.edu.tw
web.fsps.ntpc.edu.tw
www1.lles.ntpc.edu.tw
mtx.sjps.ntpc.edu.tw
www.jhes.ntpc.edu.tw
www.sjps.ntpc.edu.tw
www2.dpps.ntpc.edu.tw
freeswitch.mdhs.ntpc.edu.tw
pcclass.rfjh.ntpc.edu.tw
blog.ghes.ntpc.edu.tw
www1.hses.ntpc.edu.tw
ssl.url.com.tw
www.szjh.ntpc.edu.tw
web.ckps.ntpc.edu.tw
www.tyhs.ntpc.edu.tw
www.kkes.ntpc.edu.tw
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Certificate

The complete raw certificate details for mail.kcis.ntpc.edu.tw in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6qANVKiiarAs9babc3EJ
VdvycCCmWHuvFNkOI4LQC/DSsxirlkrWrgmOzAndSHXhLqo7ovyvNSvvgZjvYEbe
Tm1TiG4kRDp4LjQpfFFjweTWT6x7jozNk9Kf2uNIsw/8PoKD2PVDAFusHJR9jj5r
au83m8qKg9ch5b6LHnhTcUneKsHNr8DLkF6qqOe7liQ086Kg7CtGOup86Q/58wea
ZKqMKJ69JSZAomIGY8BJ/XrKH8XXBfZMRP3Lv5OJ2TPABT9YKsEkamjObZCantiB
RWI4txV8xzolCcrJZa3T33Z2WqeUkjKfJaI/h6lGSUJqSid8TeLTEjEi/4WLIiin
PwIDAQAB
-----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 95579800571917872462353233004677982314
 . . . . . . . . [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 'TW'
 . . . . . . . . . . . . [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 'TAIWAN-CA'
 . . . . . . . . . . . . [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 'TWCA Secure SSL Certification Authority'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-12 00:37:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-12 15:59:59 +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 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'TW'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8 (stateOrProvinceName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Taiwan'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'New Taipei'
 . . . . . . . . . . . . [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 'Kang Chiao International School'
 . . . . . . . . . . . . [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 'mail.kcis.ntpc.edu.tw'
 . . . . . . . . [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 29618687980834407672053952070149867013475851701281442492074470293864133517864336431135378304018310678082480532614378167283765891433100581124150109724341731940707150250373555307820347701802897537620113538749112330615702506797031730717988088554348864440098527422579906790976398374061315377907292151277076207406176399761608033952311685335309973867293528635443989092599561058709802387728990653497279057005411579142945928809641428274182362252821768615466745658472883453771799965079588418937339875159671949066697648662297095858249915907256804882328447023678489057226930990045938794923908363545398006816377197693158315042623
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 92e7fa6216718cf3977142c606a7e046614b5cb6
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (32 bytes)
							e64fdd48e4812cfc4de099901450f03d7d6aa57f41287cee7f9224e9322b2d3c
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (81 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://sslserver.twca.com.tw/sslserver/Securessl_revoke_sha2_2023G3.crl'
 . . . . . . . . . . . . . . . . [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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.kcis.ntpc.edu.tw'
 . . . . . . . . . . . . . . . . [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 (119 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://sslserver.twca.com.tw/cacert/secure_sha2_2023G3.crt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://twcasslocsp.twca.com.tw/'
 . . . . . . . . . . . . . . . . [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 (67 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.40869.1.1.21
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://www.twca.com.tw/'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.2 (Organization Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [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 2.5.29.15 (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 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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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