*.hycu.ac.kr

- HanyangCyber University -

Issued by GeoTrust SSL CA - G2

About this certificate

This digital certificate with serial number 46:4f:9b:56:74:54:5a:b3:ce:68:21:cf:e0:3f:95:8a was issued on by GeoTrust Inc..

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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:
  • Compliant certificates must not encode explicitTest as an IA5String (RFC 6818: 3)
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
  • Compliant certificates should use the utf8string encoding for explicitText (RFC 6818: 3)
  • Sub certificates SHOULD include Subject Key Identifier in end entity certs (RFC 5280: 4.2 & 4.2.1.2)

HanyangCyber University

Organization: HanyangCyber University
State / Province: Seoul
Locality: Seongdong-gu
Country: KR

GeoTrust Inc.

Organization: GeoTrust Inc.
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 46:4f:9b:56:74:54:5a:b3:ce:68:21:cf:e0:3f:95:8a
Serial Number (int): 93459301779881143959516627529285735818
Serial Number lenght: 127 bits, 16 octets

SubjectKeyId:
AuthorityKeyId: 11:4a:d0:73:39:d5:5b:69:08:5c:ba:3d:bf:64:9a:a8:8b:1c:55:bc

Fingerprint (sha1): d9:ad:d6:57:de:0b:d7:b3:d6:ba:db:bd:3c:8e:31:1a:ec:70:8a:2a
Fingerprint (sha256): 57:20:1c:2c:71:df:05:71:24:69:ab:97:2e:04:fa:29:f4:67:d7:fb:c7:8d:f4:84:09:58:28:8f:3f:ce:d0:c5

Issuing Certificate URL: http://gb.symcb.com/gb.crt

Revocation information

OCSP Server: http://gb.symcd.com
CRL Distribution Point: http://gb.symcb.com/gb.crl

Check the revocation status for certificate *.hycu.ac.kr

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.hycu.ac.kr

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

*.hycu.ac.kr
hycu.ac.kr

Other certificates including the domain name hycu.ac.kr

(limited to 100 certificates)
*.hycu.ac.kr
*.hycu.ac.kr
*.hycu.ac.kr
*.hycu.ac.kr
*.hycu.ac.kr
autodiscover.hycu.ac.kr
*.hycu.ac.kr
*.hycu.ac.kr
autodiscover.hycu.ac.kr
*.hycu.ac.kr
*.hycu.ac.kr
*.hycu.ac.kr
*.hycu.ac.kr
*.hycu.ac.kr

Certificate

The complete raw certificate details for *.hycu.ac.kr in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtNCi2U4j+MIgjcFpmQvQ
NfTdbwObfkxtaTUrDNyO0KkJkttnoHdOyxXgsxaFmHQrnad6B2p6klXxzsdgTLM4
EP/eRVhmpG8Y1yWf8dHoDLHBVwHMQ73ZJe/hd6xHtFctLMZkgPW2R22eFKOrUVsi
LHq/Cwva2E9ZRZxGWj2hI4WvFZ6aTe8SjqunrTj05RtyJ7SNqZNnLgikz0waXVyT
Llw5gn/S1voYOGs9LhtOnbB/oKj/7XxeAC+yB7//Q2vjSyX5VzJAMpYs+VSCfd0Q
5SDLIipy1EvwwQGJ3My2L1oeesANrmCU4i3z2LifdACDmZ3jmGJ6ZgkDP+7X1fav
RwIDAQAB
-----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 93459301779881143959516627529285735818
 . . . . . . . . [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 '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 'GeoTrust Inc.'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'GeoTrust SSL CA - G2'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2014-07-13 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-07-12 23:59:59 +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 'KR'
 . . . . . . . . . . . . [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 'Seoul'
 . . . . . . . . . . . . [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:20|false] TeletexString, T61String 'Seongdong-gu'
 . . . . . . . . . . . . [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:20|false] TeletexString, T61String 'HanyangCyber University'
 . . . . . . . . . . . . [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:20|false] TeletexString, T61String '*.hycu.ac.kr'
 . . . . . . . . [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 22825777203238743171957108870800639770769201562265489533907283772493942263924623340229622636936833579555340626824844284369751525091205143189132659025801421186109485467006259480160338902999969074299348884003718550119462056789097299300511501157217258835010627952519329944743717442714901163299652931495291098638334368840382162104797156983369926649193589423962519326714421490490497483648895851902453808326712944286792583626795154328810792774502201138377560395349118821505354717109338172186199991698962108692105438895347429652501642202612284410457673942621291575729038292774724645620373196781206701717848867775512101433159
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.hycu.ac.kr'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hycu.ac.kr'
 . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (36 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://gb.symcb.com/gb.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 (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 2.16.840.1.113733.1.7.54
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://d.symcb.com/cps'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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:22|false] IA5String 'https://d.symcb.com/rpa'
 . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 114ad07339d55b69085cba3dbf649aa88b1c55bc
 . . . . . . . . . . . . . . . . [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 (75 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://gb.symcd.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://gb.symcb.com/gb.crt'
 . . . . [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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