aps4.uch.edu.tw

Issued by TWCA Secure CA

About this certificate


This digital certificate with serial number 40:01:33:06:15:00:00:00:00:65:c8:69:c3:d2:c4:d3 was issued on by TAIWAN-CA INC. .

While the 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.

Cerificate errors/warnings *beta

  • ERROR: Certificate contains no Authority Info Access Issuers

Chien Hsin University of Science and Technology

Organization: Chien Hsin University of Science and Technology
Organization unit: Computer and Network Center - 1
State / Province: Taiwan
Locality: Jhongli
Country: TW

TAIWAN-CA INC.

Organization: TAIWAN-CA INC.
Organization unit: SSL Certification Service Provider
State / Province: Taiwan
Locality: Jhongli
Country: TW

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 40:01:33:06:15:00:00:00:00:65:c8:69:c3:d2:c4:d3
Serial Number (int): 85076818911851097220526724997801231571
Serial Number lenght: 127 bits, 16 octets

SubjectKeyId: 91:f6:b4:84:91:6a:bd:e4:af:4e:93:ad:17:e0:26:f3:a6:ce:92:c8
AuthorityKeyId: 0a:69:4d:3b:5c:3c:e7:1d:61:12:54:3e:cb:58:d9:58:d0:79:f9:74

Fingerprint (sha1): 1a:58:16:d7:e7:be:18:60:ff:17:08:30:fd:a1:3c:71:53:0c:88:7a
Fingerprint (sha256): 2a:67:00:58:03:d8:ab:da:59:f6:bb:dc:c5:2a:a2:60:fa:e8:9f:e6:45:dc:90:c3:fc:b5:ab:42:c9:b7:4d:8c


Revocation information

CRL Distribution Point: http://sslserver.twca.com.tw/sslserver/revoke11.crl

Check the revocation status for the current certificate on aps4.uch.edu.tw
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA1 with RSA



Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

8 extensions
No unhandled critical extensions



CA Certificate

This is not a CA certificate

Subject Alternative Names

This certificate doesn't contain any other subject alternative names besides the common name of the subject: aps4.uch.edu.tw

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIE4DCCA8igAwIBAgIQQAEzBhUAAAAAZchpw9LE0zANBgkqhkiG9w0BAQUFADBs MQswCQYDVQQGEwJUVzEXMBUGA1UEChMOVEFJV0FOLUNBIElOQy4xKzApBgNVBAsT IlNTTCBDZXJ0aWZpY2F0aW9uIFNlcnZpY2UgUHJvdmlkZXIxFzAVBgNVBAMTDlRX Q0EgU2VjdXJlIENBMB4XDTEyMTEwOTAxMjczNVoXDTE0MTEyNzE1NTk1OVowga4x CzAJBgNVBAYTAlRXMQ8wDQYDVQQIEwZUYWl3YW4xEDAOBgNVBAcTB0pob25nbGkx ODA2BgNVBAoTL0NoaWVuIEhzaW4gVW5pdmVyc2l0eSBvZiBTY2llbmNlIGFuZCBU ZWNobm9sb2d5MSgwJgYDVQQLEx9Db21wdXRlciBhbmQgTmV0d29yayBDZW50ZXIg LSAxMRgwFgYDVQQDEw9hcHM0LnVjaC5lZHUudHcwggEiMA0GCSqGSIb3DQEBAQUA A4IBDwAwggEKAoIBAQDXgt0ba71VDbwQ7Bsb2FVyUpokntXkdOOSvgHLrGC1o56+ sBKs4+LU8NCqwJFgYgtubYkcUVae0fRBYtbGiiKeSxg0xl5J7Wq9hwNP/kQMVibj tUHvXCCZAlSX+ttZeQWF3D7fEfbQHlcMmng8TsYqHz60nhxP92EELBDEmAFfacGI /r79E1hlS4za+jfrtvbN1U5N3XM8++acNjugpllkmQr0hoa7pe8CQTgPz4OvOiYE X8ZdRYtH76PztgOmNJ3yCdHxsiPyipNWWQxCbdeX/Q5BSZMa35FHyoo5m1JRCzTi 4U0eFLqj8puAHWSqwS+i9BECcdpqxMLv+bVIg/WHAgMBAAGjggE5MIIBNTAfBgNV HSMEGDAWgBQKaU07XDznHWESVD7LWNlY0Hn5dDAdBgNVHQ4EFgQUkfa0hJFqveSv TpOtF+Am86bOksgwRAYDVR0fBD0wOzA5oDegNYYzaHR0cDovL3NzbHNlcnZlci50 d2NhLmNvbS50dy9zc2xzZXJ2ZXIvcmV2b2tlMTEuY3JsMBoGA1UdEQQTMBGCD2Fw czQudWNoLmVkdS50dzBXBgNVHSAEUDBOMEwGB2CBHgMBCAUwQTAiBggrBgEFBQcC AjAWGhRSZXN0cmljdGlvbiA9My4yLjEuMTAbBggrBgEFBQcCARYPd3d3LnR3Y2Eu Y29tLnR3MAkGA1UdEwQCMAAwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjANBgkqhkiG9w0BAQUFAAOCAQEAL9dTyOVhBdZBtG6A /x7jr94GVt+CA+nRhDOvyZwts95sMQDKejky1BkZUhQ13w1BnOaOGJfB7fYHSe3J stXG2VjTWD5GIRvJYeEp7LYI7CTN5EyjwMLo6wyQx7EivQmp79QmJyUgazl4+tOI rH3w1vTTGvkhdDppbe5l61ohpngMpF6mVBUKpkxAragv3j42oOEGGtSQp/ELJG8M cOUq49vEx2j0vcnKolc0+Pee4ddb3moZ4rnuMgZI7gwojEWpPO5qWmpxQEyIhMvR LHtNWzonA4NcJK6R3sei05PM14sYgvsZsnviEOniqqGg5Z3+P6IN5RFVybUrQZ6o 8dH7Pg== -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA14LdG2u9VQ28EOwbG9hV clKaJJ7V5HTjkr4By6xgtaOevrASrOPi1PDQqsCRYGILbm2JHFFWntH0QWLWxooi nksYNMZeSe1qvYcDT/5EDFYm47VB71wgmQJUl/rbWXkFhdw+3xH20B5XDJp4PE7G Kh8+tJ4cT/dhBCwQxJgBX2nBiP6+/RNYZUuM2vo367b2zdVOTd1zPPvmnDY7oKZZ ZJkK9IaGu6XvAkE4D8+DrzomBF/GXUWLR++j87YDpjSd8gnR8bIj8oqTVlkMQm3X l/0OQUmTGt+RR8qKOZtSUQs04uFNHhS6o/KbgB1kqsEvovQRAnHaasTC7/m1SIP1 hwIDAQAB -----END PUBLIC KEY-----

ASN1 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 85076818911851097220526724997801231571 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . . . . . [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 INC.' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'SSL Certification Service Provider' . . . . . . . . . . . . [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 CA' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2012-11-09 01:27:35 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2014-11-27 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 'Jhongli' . . . . . . . . . . . . [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 'Chien Hsin University of Science and Technology' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Computer and Network Center - 1' . . . . . . . . . . . . [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 'aps4.uch.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 27205766863118815315165106880262398951097625562687570892704524867179874360747696442144661697780332150754962167397057285299633122590553277147966368198122775112360456810111076339783774422996377401634576688776298118078633073350058405574030988175163226611368676813068926294244597761457145784649457054529178439274153372863114629297433369601808526905320219552461545739596550843150101529881671086727286540931732103292140226462244672472093887622936380703882604008653541927935970009708486224310676494580718443972638698829767753051428070684777784100502535400450453589478058658147016957756040869613695368540592957532318611010951 . . . . . . . . . . . . . . . . . . . . [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 0a694d3b5c3ce71d6112543ecb58d958d079f974 . . . . . . . . . . . . . . . . [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) 91f6b484916abde4af4e93ad17e026f3a6ce92c8 . . . . . . . . . . . . . . . . [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 (61 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/revoke11.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 (19 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'aps4.uch.edu.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 (80 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.158.3.1.8.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:26|false] VisibleString, ISO646String [82 101 115 116 114 105 99 116 105 111 110 32 61 51 46 50 46 49 46 49] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'www.twca.com.tw' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [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 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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