buptwc.com

Issued by R3

About this certificate

This digital certificate with serial number 03:cc:fa:9b:32:30:77:07:28:f9:b7:78:4c:67:d1:d5:ea:98 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=buptwc.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:cc:fa:9b:32:30:77:07:28:f9:b7:78:4c:67:d1:d5:ea:98
Serial Number (int): 331087573470071757708327298172969381391000
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b5:19:c9:11:94:68:bd:46:37:ec:bb:cb:ff:69:58:28:9e:11:d2:45
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 8e:fb:a8:65:23:e6:2c:1c:25:a4:50:ab:39:b9:b5:ad:63:84:77:d1
Fingerprint (sha256): 5d:d9:f9:6d:97:f9:bd:42:48:6b:d6:b0:1a:7e:71:86:9f:d2:69:a9:04:96:d2:9e:b5:e6:bf:03:f1:48:bc:68

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

Revocation information

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

Check the revocation status for certificate buptwc.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for buptwc.com

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

buptwc.com

Other certificates including the domain name buptwc.com

(limited to 100 certificates)
buptwc.com
buptwc.com
buptwc.com
320ytmp.com
buptwc.com
buptwc.com
buptwc.com
buptwc.com
buptwc.com
buptwc.com
jobsindeed.com
buptwc.com
buptwc.com
jobsindeed.com
jobsindeed.com

Certificate

The complete raw certificate details for buptwc.com 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 331087573470071757708327298172969381391000
 . . . . . . . . [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 2024-02-01 16:34:06 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-01 16:34:05 +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 'buptwc.com'
 . . . . . . . . [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 914573816544605340670701730921660337726479164667773241600072180132135935948125027801655223191028720370135403759945232775412743135316442845229985916775723540780113363169029546434950146594089176359179948785315419786617289767045612010623995886127996979043150839204183899309380291892798518332720412564257188862943669977713098325611610053689691019831422941944187958251870972316858353651276935327515726048303593401966452689428724775327884489564601803612826330270021104462754007719202417483208790160428957103721014280804700629560183248230868186316471365394624850575452410048690205480508622080481743144191745282721339623766899941343438034319079547333912783129719413304743152103605464487951833758942910761834940147061525548043476881628915913309642531104993516863619962790214779256571275838516306619716282668365560545520908884750052125680006107299182324639445258335167942787374430745030672382039571958353178809119053990441121074597715852345772152626685125946701233467140696493822128360399239770396743469094776748256087055577998744004412316237819671329853160282405176555909321307734754882854798667996936083070421785683020709322257325913486376527895861521818461366279843074876298813158775034500768850195073745104847286100749273211115063869077867
 . . . . . . . . . . . . . . . . . . . . [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)
							b519c9119468bd4637ecbbcbff6958289e11d245
 . . . . . . . . . . . . . . . . [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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'buptwc.com'
 . . . . . . . . . . . . . . . . [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)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d65bc28120000040300473045022060ef7be325cb5be5af013d7044498d9d6ba68302dbdca67d4c82c873c51d00a6022100d9f79263f897f485dc4598002ecb04b001eff89b247700844d55eb4aa6100691007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d65bc2865000004030047304502206d0dd87410090fcd819a4cf586e9f901e1756b10c373a367281fd695828ca8bc022100c3dbe62b1e4283a43cafd9f6dcabf6fab68734b7eadfc95b76890fe318669677
 . . . . [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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