npc.cnsi.ucla.edu

Issued by R3

About this certificate

This digital certificate with serial number 03:a7:0b:eb:8a:f4:e8:f7:09:35:43:b0:71:2a:9d:54:68:2c 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=npc.cnsi.ucla.edu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:a7:0b:eb:8a:f4:e8:f7:09:35:43:b0:71:2a:9d:54:68:2c
Serial Number (int): 318179857587169149225200771544457128732716
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 47:90:ca:57:e3:db:16:e8:01:ff:8c:36:65:83:10:be:0e:9c:e7:b4
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 10:9f:5c:66:a2:71:25:b5:ad:e0:b8:85:17:aa:b4:f8:6d:8d:5c:28
Fingerprint (sha256): 00:81:55:c5:d2:92:78:ca:6c:7e:54:db:73:a4:93:36:e1:e6:29:02:cf:cd:8b:36:33:fd:52:b9:24:36:16:be

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

Revocation information

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

Check the revocation status for certificate npc.cnsi.ucla.edu

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for npc.cnsi.ucla.edu

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

npc.cnsi.ucla.edu

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Certificate

The complete raw certificate details for npc.cnsi.ucla.edu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAp2uFQGjZTIXvTYfOyw9m
MyolRXZ/KjPqVAGreZxh5pI5/7wst5IsgUN8b6Pdnuqf1V64BcTGm40Do8FSLimF
0Dn7lB39SWS2fNHBWDWMTjO6Y/49wLdCc614P7YlBJryeXDViGYD+ctnknZFhC5A
18zIwn3d6mYnJMTryc1KN2pETJ4BhQkFu9EnCBG7WFIm9IFQFtBzW2yCos1FBoUq
0lGTVlM1i065irHCRBXcAh0vqKNHr6839/fGtajOyBfRziGkL9oi8xC0uhgGEqfC
i+sDD6/RgHQhCcZud4PFJxw05frLSwLfusdG7DStlW504dyOMdqSC6s+ktKetOQT
yQIDAQAB
-----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 318179857587169149225200771544457128732716
 . . . . . . . . [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 2023-11-06 16:44:55 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-04 16:44:54 +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 'npc.cnsi.ucla.edu'
 . . . . . . . . [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 21134817270910943180138076059302140900429735489829125462174760443784839976527806990295022253061076088475431062302327620741663862212138220998100227836307505607588747614225170238293460471502198985578811280435844990029578630363659845226355195071650867907087668352664236255611924371189266731590068087574806628623170540861970970948897648350439709106493246884564120598023020234730341309003098841887311276286095111605984949552854022742249164217341603867299158379116665775248748489117122672892339640671831836835454020966341378639353151684241900993111572954989495482319251434397792680993525029618565315519934008657838103335881
 . . . . . . . . . . . . . . . . . . . . [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)
							4790ca57e3db16e801ff8c36658310be0e9ce7b4
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'npc.cnsi.ucla.edu'
 . . . . . . . . . . . . . . . . [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)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018ba5bccbd10000040300473045022100ef857bbcb2824672f06b051b592e6856daab6d8cc37f0946948fa7a00321a0070220403de7641dd8fbd9e618236a8ba22f5d2a4b46bb2f123c65d6d1862c4bfbbafc007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ba5bccbcb000004030047304502201f69f791760f6cc650c69a6de9e11cffcbb2e3da9e77bae7f4f211476a9cd9150221008f6b768b028ba00be9ab706f457c96033ab39c2778e2a242b27600744b7a39b0
 . . . . [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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