imagination.tianjinjuilliard.edu.cn

Issued by R3

About this certificate

This digital certificate with serial number 04:ce:9c:4e:49:f0:b9:99:c5:c6:7b:88:08:d2:4f:cc:e4:86 was issued on by Let's Encrypt.

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=imagination.tianjinjuilliard.edu.cn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:ce:9c:4e:49:f0:b9:99:c5:c6:7b:88:08:d2:4f:cc:e4:86
Serial Number (int): 418755077378939823349109072094047490598022
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: cf:9d:2f:80:77:07:55:bb:2a:4e:f7:6e:52:37:24:82:a7:8d:70:33
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b3:25:a4:bf:ca:a6:b6:d2:68:11:4e:5f:1b:19:e8:90:99:d3:92:a0
Fingerprint (sha256): 3c:45:22:41:ff:4a:a1:3d:78:b7:21:3f:dd:df:ba:0c:fc:e4:ad:41:3c:cb:e8:52:8a:8a:10:01:35:54:78:2e

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate imagination.tianjinjuilliard.edu.cn

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for imagination.tianjinjuilliard.edu.cn

Public Key Algorithm

RSA

Key Size

4096

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

imagination.tianjinjuilliard.edu.cn

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Certificate

The complete raw certificate details for imagination.tianjinjuilliard.edu.cn in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 418755077378939823349109072094047490598022
 . . . . . . . . [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 'Let's Encrypt'
 . . . . . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-08-02 02:46:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-10-31 02:46:08 +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 'imagination.tianjinjuilliard.edu.cn'
 . . . . . . . . [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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 598803543179148980714117796920028453016663084815752174520048467214791978213430938041546959024352662325662422635963519726079902344778625417537642792546738910281561725072633322132752524169505213649575443221455650611565458418203239634937406292638477593778309151066579902555381791265552660169693033228779899267544754647957508793468389513490618881158628958923286992387392074943218485860793844426757198855749126848647976123311172036408092843136784193495088487175577639108091250710524825437411204434715240382384354835309336744723808149715445092643583234348420668676428769103507886372263405045844602057162821421180562098590470197107800007478039878526304991153615140428554538171115407850795694121900566147445224947698778214581869023820635786238354989850001284472190909190116255599888231130309027596087277622615893842598163386179246468772891039501276213581463299988001874568848544824246625032256786806880567784313827290193333347349580158542954636250163165769837477381130932899286902518085624248427783707358691091377194927768414015643966825305842458493770336043480488103758382541016404870384310501113374163665446220307453213801082247801183178208769017895795939912350930844597154925913955426409772072586787428663739128742987879029510998213170873
 . . . . . . . . . . . . . . . . . . . . [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 (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 2.5.29.19 (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)
							cf9d2f80770755bb2a4ef76e52372482a78d7033
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [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 (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'imagination.tianjinjuilliard.edu.cn'
 . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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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