lrc.cn

Issued by R3

About this certificate

This digital certificate with serial number 03:e0:52:e7:e1:ee:f7:f2:74:02:4f:7d:48:4b:c3:1c:cc:f5 was issued on by Let's Encrypt.

With 4 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=lrc.cn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e0:52:e7:e1:ee:f7:f2:74:02:4f:7d:48:4b:c3:1c:cc:f5
Serial Number (int): 337670308684274839807760023318356985433333
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 71:4e:23:c3:eb:d1:49:4d:ca:97:cd:c7:0f:ef:60:fd:c5:ed:aa:68
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f7:e9:e9:b2:18:64:ee:f9:69:8c:7e:2c:c8:ff:2d:4a:4b:d9:c8:b7
Fingerprint (sha256): 37:a4:b2:5b:96:cc:ca:c5:24:c7:ed:44:96:2b:65:58:34:10:38:ab:fa:7a:12:e0:c0:51:79:e8:18:35:f1:b2

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

Revocation information

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

Check the revocation status for certificate lrc.cn

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for lrc.cn

Public Key Algorithm

RSA

Key Size

3072

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

en.lrc.cn
lrc.cn
sso.lrc.cn
www.lrc.cn

Other certificates including the domain name lrc.cn

(limited to 100 certificates)
lrc.cn
lrc.cn
lrc.cn
meetings.lrc.cn
lrc.cn
*.lrc.cn
lrc.cn
lrc.cn
lrc.cn

Certificate

The complete raw certificate details for lrc.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 337670308684274839807760023318356985433333
 . . . . . . . . [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 2023-07-27 02:51:33 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-25 02:51:32 +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 'lrc.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 (3184 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2906172511334906908677169572067818616664678986256274699196003266622872964559934904522303266853726813228250596377635804960891064241100650039209987717417684003013915552227464015782195790283039204619433561955278314324230942635483423200507757902161873287069121363140840372064472824207272914848671353473401518079695159235990885453438488345253629274327722796435907133164869362697922765353337246262847706958791547325929108201845788476123457988714193530441555085812991241488008931056643954493231782160666352800465810196935026594037484126342345451519844226277969728374617247701255037154391857068621287132307128516861558370674927299645913304845490746965521403510698623880840345657609736456130947960256407089913370769481619855873060048919189602212245191439348728563902779500876843166134994872243595087421869901244103789170822985355200117251607652819587255467203745629626878159292488674727893417409436805885181711493706354665758148084447
 . . . . . . . . . . . . . . . . . . . . [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)
							714e23c3ebd1494dca97cdc70fef60fdc5edaa68
 . . . . . . . . . . . . . . . . [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 (45 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'en.lrc.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'lrc.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sso.lrc.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.lrc.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018995792bca000004030047304502200dcc832e4a692e5b42c6359d22590de6f1c66f9e5b1c12b7fc280d3f395311cf022100a2bc8eefde3fae9f312ca61fc38b312c2aa8c65d4f4d21e1ad226e07dced40ae007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018995792bf600000403004730450220347ff4d2602ac23ad62cebdd8f0b13a47d54312de0d9e0d9683057176b7f2069022100cdb09bc256eec2535d78076e66e404494ad9b13adcdd0e04140bc7ea368cec93
 . . . . [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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