res.puc.edu.kh

Issued by R3

About this certificate

This digital certificate with serial number 04:f8:de:93:4f:bb:a0:66:f5:ee:1d:09:4e:69:38:d7:a5:58 was issued on by Let's Encrypt.

With 2 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:
  • 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=res.puc.edu.kh

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f8:de:93:4f:bb:a0:66:f5:ee:1d:09:4e:69:38:d7:a5:58
Serial Number (int): 433135024223311848620885156010870825264472
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: da:2b:f2:14:60:e8:71:84:5d:41:9a:e6:40:25:fb:9e:bc:b1:cd:84
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 72:67:c3:27:1a:fb:59:89:7e:36:43:6f:64:80:20:57:f0:16:0c:a6
Fingerprint (sha256): 00:18:e1:f7:75:c5:16:d2:89:94:91:cd:c2:f5:2f:cc:7f:eb:be:a4:41:32:99:7d:4d:8b:ca:29:c7:18:22:a5

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

Revocation information

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

Check the revocation status for certificate res.puc.edu.kh

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for res.puc.edu.kh

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

res.puc.edu.kh
www.res.puc.edu.kh

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Certificate

The complete raw certificate details for res.puc.edu.kh in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtZlpKLcAKl0tbucd65Fa
F8/3N5hjomO7zZVR15RSzFHtYSdN5n4xxpga4IU3+BZ55bs1QLLVkjlX33QK5Nr6
cZpd+CnzX58nt/z+IoWlNymyQWtJ8TsHjNLwBMN37vhHVv+EOqBRkhP7nE+74scN
LHFzrgTnqEHDrFTF7+TwJwEWO+22RPMZfyQ/+cJ6k9kQtPYBZSOPRU2FO4dejsJn
fqZ7YGRZy03OrRzhR10UhHaeVm5jGospiYQqS7qsYHWMtYWLcc9pPJlH+7OMnwZQ
S2hzLEiFVAXA2xL1M/6mjSLBZZ+IGNwm/7xQXBEjIcOSz9aoNohsZAt9iWZGqN7A
vwIDAQAB
-----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 433135024223311848620885156010870825264472
 . . . . . . . . [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 2023-12-14 11:22:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-13 11:22:11 +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 'res.puc.edu.kh'
 . . . . . . . . [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 22924782872748380153648914707725621940913256271249972516533418840102031419969640173660786448667687038388969686342253969598381196922284515282556380672381575921352334842591671621780059732889766855992975306928649783625606906092030644104609291707688908027492348242305886840655115998850274133759902724103409962060975921566458733254807816598379185464608668561156263061427769516652620229622431722550751668103674137575778801056938138869214765511188901990961066111475079014659573690837072042966067754269209745468028140974362902500614174678005009733891218353130172834914267072453178532732642863097750027849997680860809517777087
 . . . . . . . . . . . . . . . . . . . . [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)
							da2bf21460e871845d419ae64025fb9ebcb1cd84
 . . . . . . . . . . . . . . . . [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 (38 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'res.puc.edu.kh'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.res.puc.edu.kh'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018c6846fee50000040300483046022100d21e7b566001af039eb850d6e3a434df814b556d89b1fe3a85dfb7ed242fb417022100e398a1e29997a1464cc66a06b03956221840517b849d62f09df99711902912dc007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c6846feda0000040300473045022059f627d79b2ed75015c75446ebcc31a43d675190420a9af830fe2ff5fc2070e1022100e8c9ea8a1f50f82255d0dc9ba840f030d34d4e689c24391874ed693165578142
 . . . . [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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