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
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:e6Serial 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.comCheck 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----- MIIGKDCCBRCgAwIBAgIRAOnyqa8J0AS/q4i2Q87CQ+YwDQYJKoZIhvcNAQELBQAw gY8xCzAJBgNVBAYTAkdCMRswGQYDVQQIExJHcmVhdGVyIE1hbmNoZXN0ZXIxEDAO BgNVBAcTB1NhbGZvcmQxGDAWBgNVBAoTD1NlY3RpZ28gTGltaXRlZDE3MDUGA1UE AxMuU2VjdGlnbyBSU0EgRG9tYWluIFZhbGlkYXRpb24gU2VjdXJlIFNlcnZlciBD QTAeFw0yMjEyMjMwMDAwMDBaFw0yNDAxMjIyMzU5NTlaMBoxGDAWBgNVBAMTD2Jr c2l0LnNzdS5hYy5rcjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAL0d UJFPMGqDjL76YGfmW+qGpwStT6ymt+PpUd6s9vVM9JglSphnaivTL6Z1wkiCjCIY j/P2/OJpe+ZwPQhWCI9RdKTgmr6tE1OONewU1uzPc9iD37AztHfkmjoMYOm97LGn VT3zLsL2rkuN/iBPcFvI18qOVFswOXbml7hVe4ms5UPZdbPdxCRugwHSrn+DPPth CX2M5xWata9pj62ymbaV4SdoJ/0wVfuTN42ulLDqq8HgIlKDJBO0pz0HlBGYujS7 RlaytC02CDaqN0B3ar7MB+XCuqLEXa4YdDarvuzlw4cSSLVNM11UWVZfrAs5KodO s6HNPRVumnU8wk88ewUCAwEAAaOCAvEwggLtMB8GA1UdIwQYMBaAFI2MXsRUrYrh d+mb+ZsF4bgBjWHhMB0GA1UdDgQWBBTAT1fI1vMnpU/qI9eSAn+Ewm8UQTAOBgNV HQ8BAf8EBAMCBaAwDAYDVR0TAQH/BAIwADAdBgNVHSUEFjAUBggrBgEFBQcDAQYI KwYBBQUHAwIwSQYDVR0gBEIwQDA0BgsrBgEEAbIxAQICBzAlMCMGCCsGAQUFBwIB FhdodHRwczovL3NlY3RpZ28uY29tL0NQUzAIBgZngQwBAgEwgYQGCCsGAQUFBwEB BHgwdjBPBggrBgEFBQcwAoZDaHR0cDovL2NydC5zZWN0aWdvLmNvbS9TZWN0aWdv UlNBRG9tYWluVmFsaWRhdGlvblNlY3VyZVNlcnZlckNBLmNydDAjBggrBgEFBQcw AYYXaHR0cDovL29jc3Auc2VjdGlnby5jb20wGgYDVR0RBBMwEYIPYmtzaXQuc3N1 LmFjLmtyMIIBfgYKKwYBBAHWeQIEAgSCAW4EggFqAWgAdgB2/4g/Crb7lVHCYcz1 h7o0tKTNuyncaEIKn+ZnTFo6dAAAAYU+KZ7wAAAEAwBHMEUCIQD6GWCpPyStg2cR XNbAT3i9fITdtM/H7cadrZore5s/5gIgeJUPiVngwujbIcmH72pkYWmAf5dSBtn8 WuWn5VJ8XBsAdgDatr9rP7W2Ip+bwrtca+hwkXFsu1GEhTS9pD0wSNf7qwAAAYU+ KZ6vAAAEAwBHMEUCIDRf9WkU3V+2A3nj9CfRwsDzQjQq4g7AZMmNlqxJSm3BAiEA 9idkSto1VKJQBI3op755cnfNwL53Bj/jnPrlPkLUYoEAdgDuzdBk1dsazsVct520 zROiModGfLzs3sNRSFlGcR+1mwAAAYU+KZ6DAAAEAwBHMEUCIQCp5yg4GQ0bdzxh 0KI9phvZzhy4Glo7tYhNv0OQ8yfUmgIgTttJS4uiNa0sfkf//a0px3E7fXRgvlf2 +2/iaLnEMU0wDQYJKoZIhvcNAQELBQADggEBAE7MaJVCHAEe2Xa0DKi0CXii9bby ZXEzVlQlss2W0DVIvIzEMZ9rE/DdQTOcy+ErqRA0znPK0jWUJ9z6DEScMPPQbsHv +74UcQObNK6oxZ/7bzC/LqVFGWp2vHzTQBEzcGRFaMhGgul47CdbqeWcEd9oPypk b7znfR/qoscnFqSXBYO4KOftEBiYLBmhnJEnXAVmxpVm/xX5cxUcQviMq00ENGNm s7yupiwKzRlg4Lm+t5pWlNFbFoA0vak/uVKEfwmVBO+yuUejlU31cUueI8GUs834 aexNo9YRjDB1c7GuhhV7IzcwBsJ7sxTznIMyiMgAnsOodzr9JIDhe14HYMU= -----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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