bksit.ssu.ac.kr

Issued by Sectigo RSA Domain Validation Secure Server CA

About this certificate

This digital certificate with serial number e9:f2:a9:af:09:d0:04:bf:ab:88:b6:43:ce:c2:43:e6 was issued on by Sectigo Limited.

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=bksit.ssu.ac.kr

Sectigo Limited

Organization: Sectigo Limited
State / Province: Greater Manchester
Locality: Salford
Country: GB

This certificate has expire since

Certificate Details

Serial Number (hex): e9:f2:a9:af:09:d0:04:bf:ab:88:b6:43:ce:c2:43:e6
Serial Number (int): 310970100452839127885278478736283550694
Serial Number lenght: 128 bits, 16 octets

SubjectKeyId: c0:4f:57:c8:d6:f3:27:a5:4f:ea:23:d7:92:02:7f:84:c2:6f:14:41
AuthorityKeyId: 8d:8c:5e:c4:54:ad:8a:e1:77:e9:9b:f9:9b:05:e1:b8:01:8d:61:e1

Fingerprint (sha1): 52:c8:51:c8:f7:f4:1d:f7:fd:75:be:b6:3d:46:50:77:fa:36:4f:2b
Fingerprint (sha256): 65:61:66:2f:54:2d:0c:0f:3d:54:8e:91:51:f6:1c:20:0a:d8:f7:72:ba:bb:91:4a:46:27:e4:a4:a0:68:2a:bc

Issuing Certificate URL: http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt

Revocation information

OCSP Server: http://ocsp.sectigo.com

Check the revocation status for certificate bksit.ssu.ac.kr

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for bksit.ssu.ac.kr

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

bksit.ssu.ac.kr

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Certificate

The complete raw certificate details for bksit.ssu.ac.kr in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvR1QkU8waoOMvvpgZ+Zb
6oanBK1PrKa34+lR3qz29Uz0mCVKmGdqK9MvpnXCSIKMIhiP8/b84ml75nA9CFYI
j1F0pOCavq0TU4417BTW7M9z2IPfsDO0d+SaOgxg6b3ssadVPfMuwvauS43+IE9w
W8jXyo5UWzA5duaXuFV7iazlQ9l1s93EJG6DAdKuf4M8+2EJfYznFZq1r2mPrbKZ
tpXhJ2gn/TBV+5M3ja6UsOqrweAiUoMkE7SnPQeUEZi6NLtGVrK0LTYINqo3QHdq
vswH5cK6osRdrhh0Nqu+7OXDhxJItU0zXVRZVl+sCzkqh06zoc09FW6adTzCTzx7
BQIDAQAB
-----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 310970100452839127885278478736283550694
 . . . . . . . . [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 'GB'
 . . . . . . . . . . . . [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 'Greater Manchester'
 . . . . . . . . . . . . [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 'Salford'
 . . . . . . . . . . . . [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 'Sectigo Limited'
 . . . . . . . . . . . . [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 'Sectigo RSA Domain Validation Secure Server CA'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-12-23 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-22 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 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'bksit.ssu.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 23873495264426873083180032484278059366885771188210738492748018731664475147353168701726431882039608559032073968872083949935993416903049576557368739899140785867876970547712093905438502905100544003246410130999132727306456086445698835236797722450877687423477268449438426016075313498808638496323236905922791242836070849050441211091609194647849142751988777264593686612987213200097038964737472063147160164552026519450082706180698446566895406519103843899079182263678062244281218809167296681757625872165065059093940004803755837703672859050376729618792347139495924646429712268597505257658749516012741482966533595097925672532741
 . . . . . . . . . . . . . . . . . . . . [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 8d8c5ec454ad8ae177e99bf99b05e1b8018d61e1
 . . . . . . . . . . . . . . . . [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)
							c04f57c8d6f327a54fea23d792027f84c26f1441
 . . . . . . . . . . . . . . . . [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 2.5.29.19 (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 2.5.29.37 (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 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (66 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.6449.1.2.2.7
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://sectigo.com/CPS'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (120 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://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.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://ocsp.sectigo.com'
 . . . . . . . . . . . . . . . . [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 'bksit.ssu.ac.kr'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (366 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (362 bytes)
							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
 . . . . [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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