real.afterschool.dgedu.net

- Daegu Education Research and Information Institute -

Issued by CA134100031

About this certificate

This digital certificate with serial number 74:bf:85:2f:a6:78:9a:7d:77:eb:29:51:4a:5e:ee:64:27:31:42:a3 was issued on by Government of Korea.

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:
  • CAs MUST NOT issue certificates that have authority key IDs that include both the key ID and the issuer's issuer name and serial number (Mozilla Root Store Policy / Section 5.2)
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
  • Compliant certificates should use the utf8string encoding for explicitText (RFC 6818: 3)
  • Subscriber certificates authorityInformationAccess extension should contain the HTTP URL of the issuing CA’s certificate (BRs: 7.1.2.3)

Daegu Education Research and Information Institute

Organization: Daegu Education Research and Information Institute
Organization unit: Daegu Education Research and Information Institute
State / Province: Daegu
Locality: Nam-gu
Country: KR

Government of Korea

Organization: Government of Korea
Organization unit: GPKI
Country: KR

This certificate has expire since

Certificate Details

Serial Number (hex): 74:bf:85:2f:a6:78:9a:7d:77:eb:29:51:4a:5e:ee:64:27:31:42:a3
Serial Number (int): 666513973897062959583022295482545636482913223331
Serial Number lenght: 159 bits, 20 octets

SubjectKeyId: ff:5b:18:c9:a8:73:cd:ae:43:5a:e9:95:ab:9a:51:f6:80:75:dc:9e
AuthorityKeyId: 8e:46:f8:0d:9e:78:76:a2:cc:1a:e4:0f:51:7f:52:d7:4d:9c:5b:1b

Fingerprint (sha1): 50:65:60:f5:5a:e4:e8:f0:98:3e:74:df:e5:a2:fc:10:3a:69:b8:91
Fingerprint (sha256): 1f:d7:c2:f1:0f:f1:0b:53:e1:79:4d:78:e5:77:ed:41:d2:17:58:2b:ad:8d:30:b7:66:dd:35:7e:20:e3:ff:e6


Revocation information

OCSP Server: http://ocsp.epki.go.kr:8081
CRL Distribution Point: http://www.epki.go.kr/crl1p1dp16653.crl

Check the revocation status for certificate real.afterschool.dgedu.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for real.afterschool.dgedu.net

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

real.afterschool.dgedu.net

Other certificates including the domain name dgedu.net

(limited to 100 certificates)
real.afterschool.dgedu.net
leonte.uk
leonte.uk
real.afterschool.dgedu.net
queeniar.co
*.dgedu.net
queeniar.co
ict.dgedu.net
ilt.dgedu.net
real.afterschool.dgedu.net
queeniar.co
real.afterschool.dgedu.net
queeniar.co
queeniar.co
real.afterschool.dgedu.net
afterschool.dgedu.net

Certificate

The complete raw certificate details for real.afterschool.dgedu.net in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4EPB28XJkuRxHFjBKgCL
1gc1YsWC1neJaQSVDTo1vXE4o7fIR5Bx0BqIQozAsVSuaNGw7VdZqGMqDoms68XY
LbDL/UIBoagMO0AZSMwkhwJv2HS4pCXN1SitCDKjmkHN+mjTj5QU0i2patK5pmJt
Qtwegsm9Edaem7QBY5Bj6Y8RcHtzyiLIqlXzr4QeQHaPCy9ev1W868u2Psuieab6
CzYmQVkT85B0H7gRxMgJ6oBVms47qM5fzHqD8kZuAmo6afwn2FK0yTwCwklG72u6
2UFkPtKVSw2ZosLfbbtp8ujHa+op1GSdEJ+6EFRfk9yJS/PlGoA6mBzP2BoFihTu
lwIDAQAB
-----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 666513973897062959583022295482545636482913223331
 . . . . . . . . [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 'KR'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'Government of Korea'
 . . . . . . . . . . . . [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:12|false] UTF8String 'GPKI'
 . . . . . . . . . . . . [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:12|false] UTF8String 'CA134100031'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-07-10 06:04:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-10-10 06:04:49 +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:12|false] UTF8String 'Daegu'
 . . . . . . . . . . . . [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:12|false] UTF8String 'Nam-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:12|false] UTF8String 'Daegu Education Research and Information Institute'
 . . . . . . . . . . . . [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:12|false] UTF8String 'Daegu Education Research and Information Institute'
 . . . . . . . . . . . . [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:12|false] UTF8String 'real.afterschool.dgedu.net'
 . . . . . . . . [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 28310792662457372482905646504156904286354931167062198427103279181297571849371652460900827488149464765953116631155263055427934249406439786502533629605778153551366293302813883341571142489856241573271951499845482905028044445263708120495459109703879893933864479043227586890404864868202161246537435537620321075650601461790690479150738461285764974750534835434789287378345003132987766823854332000654857891812550002175671894298566994769536062990632968203868231628267042758328186869386533559528765035304774077902320716081540308382612018791887433768862946789419728177980487477488560906257338616088014004316087940603024627789463
 . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (43 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.epki.go.kr:8081'
 . . . . . . . . . . . . . . . . [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 (114 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 8e46f80d9e7876a2cc1ae40f517f52d74d9c5b1b
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:1|true] IA5String 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:4|true] Name 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'Government of Korea'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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:12|false] UTF8String 'GPKI'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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:12|false] UTF8String 'GPKIRootCA1'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '''
 . . . . . . . . . . . . . . . . [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)
							ff5b18c9a873cdae435ae995ab9a51f68075dc9e
 . . . . . . . . . . . . . . . . [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 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.410.100001.5.3.1.9
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'http://www.epki.go.kr/cps.html'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 [69 100 117 99 97 116 105 111 110 32 67 101 114 116 105 102 105 99 97 116 101]
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.18 (issuerAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.410.200004.10.1.1 (npkiIdentifyData)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String '교육과학기술부'
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'real.afterschool.dgedu.net'
 . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (49 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://www.epki.go.kr/crl1p1dp16653.crl'
 . . . . [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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