reporter.ntut.edu.tw

Issued by TWCA Secure CA

About this certificate


This digital certificate with serial number 65:c8:29:d5 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
  • ERROR: Certificate [key too small: 1024]
  • ERROR: Certificate doesn't contain any subjectAltName
  • ERROR: Certificate CN is not listed in subjectAltName

NTUT

Organization: NTUT
Organization unit: NTUT
State / Province: TW
Locality: Taipei
Country: TW

TAIWAN-CA INC.

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

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 65:c8:29:d5
Serial Number (int): 1707616725
Serial Number lenght: 31 bits, 4 octets

SubjectKeyId: bf:72:b0:88:8c:96:57:bd:2e:72:d7:b1:f5:f8:03:1a:9e:fc:ca:19
AuthorityKeyId: 0a:69:4d:3b:5c:3c:e7:1d:61:12:54:3e:cb:58:d9:58:d0:79:f9:74

Fingerprint (sha1): 74:ae:18:99:e4:34:b8:80:44:ac:f0:bc:f2:f9:d1:9f:47:63:c8:2e
Fingerprint (sha256): af:13:f8:5e:55:1c:5e:4f:7f:ec:10:b6:31:06:9e:cc:86:2f:53:eb:82:7e:6f:c3:74:d4:3c:39:93:62:cf:38


Revocation information

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

Check the revocation status for the current certificate on reporter.ntut.edu.tw
0
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


Public Key Algorithm

RSA

Key Size

1024

Signature Algorithm

SHA1 with RSA



Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

7 extensions
No unhandled critical extensions



CA Certificate

This is not a CA certificate

Subject Alternative Names

This certificate doesn't contain any subject alternative names (DNS Name).

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIID7TCCAtWgAwIBAgIEZcgp1TANBgkqhkiG9w0BAQUFADBsMQswCQYDVQQGEwJU VzEXMBUGA1UEChMOVEFJV0FOLUNBIElOQy4xKzApBgNVBAsTIlNTTCBDZXJ0aWZp Y2F0aW9uIFNlcnZpY2UgUHJvdmlkZXIxFzAVBgNVBAMTDlRXQ0EgU2VjdXJlIENB MB4XDTExMDQyMjA2MzYyOFoXDTEzMDQyMzE1NTk1OVowaDELMAkGA1UEBhMCVFcx CzAJBgNVBAgTAlRXMQ8wDQYDVQQHEwZUYWlwZWkxDTALBgNVBAoTBE5UVVQxDTAL BgNVBAsTBE5UVVQxHTAbBgNVBAMTFHJlcG9ydGVyLm50dXQuZWR1LnR3MIGfMA0G CSqGSIb3DQEBAQUAA4GNADCBiQKBgQDHVdp1xdDlsyIrsr9DlfHrF/0UhRga2kDP oWq+eRa4uLG01f8fzOvUxsUUfZ0su87pDWjVfVThxBYmWb1K8Am2XWycr/Xs9ape e4U6UD5ogeZhtMa5YnJDg1nyRMSoInEfSPNNin5XsWUPvSIJg5gmSxSDaCqLaRCM CcDiFsU7eQIDAQABo4IBHTCCARkwHwYDVR0jBBgwFoAUCmlNO1w85x1hElQ+y1jZ WNB5+XQwHQYDVR0OBBYEFL9ysIiMlle9LnLXsfX4Axqe/MoZMEQGA1UdHwQ9MDsw OaA3oDWGM2h0dHA6Ly9zc2xzZXJ2ZXIudHdjYS5jb20udHcvc3Nsc2VydmVyL3Jl dm9rZTExLmNybDBXBgNVHSAEUDBOMEwGB2CBHgMBCAUwQTAiBggrBgEFBQcCAjAW GhRSZXN0cmljdGlvbiA9My4yLjEuMTAbBggrBgEFBQcCARYPd3d3LnR3Y2EuY29t LnR3MAkGA1UdEwQCMAAwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUF BwMBBggrBgEFBQcDAjANBgkqhkiG9w0BAQUFAAOCAQEARKkC6kMaMNej0R0AExYa XVaaa57yh4OnlhSTcLdAZ1Hrdkh5KKFG+6t+YHaDuIzsoFXA+Q3nDeGJGlDj4WOw qBAEK1xk75zwQl+c7NSRkg3XMwulpsfxOGG8PW3ZfAIsywmpCFxSUIZwZLbs9lSB sb0YQ3G0eW5QAR+NrAipIUZ3LXhMraIzoY3yHW4nmY88t1w3K0+IvsiCR79Fk12I ty7pjfgZVoX838BTG8pcJ9wZ6/iufarZzrrlQwFSC6/TnT7TdJGaPdp461MXZ+oH SWnNTc5o6CCRlk7o165dXgqCH8mLt3UBr2yo/t1qMp69uuahe/wP/rF2akS/f4zm tA== -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDHVdp1xdDlsyIrsr9DlfHrF/0U hRga2kDPoWq+eRa4uLG01f8fzOvUxsUUfZ0su87pDWjVfVThxBYmWb1K8Am2XWyc r/Xs9apee4U6UD5ogeZhtMa5YnJDg1nyRMSoInEfSPNNin5XsWUPvSIJg5gmSxSD aCqLaRCMCcDiFsU7eQIDAQAB -----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 1707616725 . . . . . . . . [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 2011-04-22 06:36:28 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-04-23 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 'TW' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString '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 'NTUT' . . . . . . . . . . . . [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 'NTUT' . . . . . . . . . . . . [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 'reporter.ntut.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 (1120 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 139978053371472183355629455795666414240022651286359320163885979511628627964069921328897099338179113458315465051026704456206249555848965791132570958943041198653566612820153585468714274393803016438646701887847806334282521000926381527040048350404189206535106348642489925231785010720431740772808916439567729769337 . . . . . . . . . . . . . . . . . . . . [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) bf72b0888c9657bd2e72d7b1f5f8031a9efcca19 . . . . . . . . . . . . . . . . [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 2.5.29.32 (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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