english-distance-teaching.cilab.csie.ncu.edu.tw

Issued by GTS CA 1D4

About this certificate

This digital certificate with serial number 18:36:23:7a:ec:8b:cf:e1:09:00:00:00:00:bc:f1:c8 was issued on by Google Trust Services LLC.

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=english-distance-teaching.cilab.csie.ncu.edu.tw

Google Trust Services LLC

Organization: Google Trust Services LLC
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 18:36:23:7a:ec:8b:cf:e1:09:00:00:00:00:bc:f1:c8
Serial Number (int): 32182575552578300878137799436557677000
Serial Number lenght: 125 bits, 16 octets

SubjectKeyId: 70:71:2a:d4:32:e8:01:f7:c7:e5:10:2b:c4:e4:92:5c:5d:6e:c6:48
AuthorityKeyId: 25:e2:18:0e:b2:57:91:94:2a:e5:d4:5d:86:90:83:de:53:b3:b8:92

Fingerprint (sha1): 39:61:3e:bf:03:9c:04:63:e0:db:5f:02:8c:6b:1f:c3:13:42:36:7f
Fingerprint (sha256): 05:57:13:37:48:bd:d0:50:9a:b1:19:cc:e9:c4:2a:3e:3a:c7:9c:20:95:86:31:ed:6f:8c:11:97:3d:2e:9b:88

Issuing Certificate URL: http://pki.goog/repo/certs/gts1d4.der

Revocation information

OCSP Server: http://ocsp.pki.goog/gts1d4
CRL Distribution Point: http://crls.pki.goog/gts1d4/_wSnBXSRndc.crl

Check the revocation status for certificate english-distance-teaching.cilab.csie.ncu.edu.tw

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for english-distance-teaching.cilab.csie.ncu.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

Extensions

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

english-distance-teaching.cilab.csie.ncu.edu.tw

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Certificate

The complete raw certificate details for english-distance-teaching.cilab.csie.ncu.edu.tw in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvIb+vtd5jzNxI9KSfkPo
+xyROvtt1fWNBWeUVOT+oa5lXDRlIiLap0p5SvIsh1s3zksGHSXqd+7gaTMOY2q7
go2nqYzC+ZI8JHlYwWKVcAj8J/Hl+RT6Dybj1xSFeOzLgWvaSNxJO6md7agP4DHm
5TFNvOq4SX3BHB6dP+dwhm33gva9aGP2ajN0gvt/33AcN7f44ghAq6Y7jNfT8Yn6
nfaE6eBAnCS4LWbvc3T7BTSKQKwdqZhWBZRYcYOuTGRZUvmJ//TuEBsvo6Bc+Rsz
tr0WkFRUYsihHiIRzy9AAAlYQV4LRxkNrrDi2fQ6GMO/BspMpKB0HTeenickZy25
gwIDAQAB
-----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 32182575552578300878137799436557677000
 . . . . . . . . [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 'Google Trust Services LLC'
 . . . . . . . . . . . . [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 'GTS CA 1D4'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2021-10-18 23:13:22 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-01-16 23:13:21 +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 'english-distance-teaching.cilab.csie.ncu.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 23799369898233371410344176981079775897296739348787166857221810775747826634376110703066908275655401991015353198551949962665387378516114059394467918036204052860521056133126417780751390703224925314511483167819850350062893260315371133215711459848866245897836044991375025942094621439500687791756529413142620333450908157299599185768665879151448157653423891397635855007367724583441105475433640190820154588441322410924954032804217990358091005210840927772874971046897640454910716658298632761398990978612151322233288721000009973923412188113498684652763352970983906833815413318370789205505582655054020299502517483287192634505603
 . . . . . . . . . . . . . . . . . . . . [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 (12 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: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)
							70712ad432e801f7c7e5102bc4e4925c5d6ec648
 . . . . . . . . . . . . . . . . [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 25e2180eb25791942ae5d45d869083de53b3b892
 . . . . . . . . . . . . . . . . [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 (94 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://ocsp.pki.goog/gts1d4'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://pki.goog/repo/certs/gts1d4.der'
 . . . . . . . . . . . . . . . . [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 (51 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'english-distance-teaching.cilab.csie.ncu.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 (26 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 1.3.6.1.4.1.11129.2.5.3
 . . . . . . . . . . . . . . . . [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 (53 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://crls.pki.goog/gts1d4/_wSnBXSRndc.crl'
 . . . . . . . . . . . . . . . . [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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