csa.edu.ph

Issued by R3

About this certificate

This digital certificate with serial number 03:87:15:28:d0:1c:84:af:d4:ee:2c:91:00:5a:5b:63:b0:c5 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=csa.edu.ph

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:87:15:28:d0:1c:84:af:d4:ee:2c:91:00:5a:5b:63:b0:c5
Serial Number (int): 307303103030393907832660322228135524544709
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 08:6b:93:17:bf:64:19:ce:2f:47:11:61:5e:ad:c7:67:b2:c1:dd:e2
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b8:37:91:9c:38:a1:23:ef:06:93:34:c0:43:bd:12:b5:3d:1e:7a:52
Fingerprint (sha256): 6c:6a:47:40:e8:b6:ad:a6:0f:9b:04:3c:92:6d:3a:75:c0:68:10:c4:c1:f2:a8:6c:34:0b:dc:9d:f0:0c:0f:17

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

Revocation information

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

Check the revocation status for certificate csa.edu.ph

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for csa.edu.ph

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

csa.edu.ph
www.csa.edu.ph

Other certificates including the domain name csa.edu.ph

(limited to 100 certificates)

Certificate

The complete raw certificate details for csa.edu.ph 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 307303103030393907832660322228135524544709
 . . . . . . . . [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 2023-12-04 11:35:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-03 11:35:37 +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 'csa.edu.ph'
 . . . . . . . . [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 647471513546242825818537490349890865194455669097493548069719590799720979124174927551667522306257620710742805063682082600665331741425863102797151272614784696364000170009035151011600641938354473136983844745191267051163434948593467511748666907597249676963431778944148270925192201013050516181873078963920891167749734940535669988277470878233831539699608046874854645447757533370995686899614826537091005365126450371147369821642841940428548420630328674012659175793631864244690708718453059464564996045702794849724334245777855454223299134913066333873245808910444174336437626006630887117396042460735921889151193830283492983531092980962528881870243180684212343735367690528724011179805050178442947897018298895960707194399329129406926276934233841816639440161445377951771560395247924648172334444409538377128838478094028419093880728628414851974702849000222469678953341841831113193277651944869840529360929625887742556601372219780329699452949283059454291148849710309047519786125160525735951577783213341705747795610253238378605929512468440416471841167705864560707176206823303371063587669227702276347193757947045726526111895363811088328045696342348260837343108592143824572328367649454345061804586883888179592047878197296565705812925415856319982542416071
 . . . . . . . . . . . . . . . . . . . . [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)
							086b9317bf6419ce2f4711615eadc767b2c1dde2
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'csa.edu.ph'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.csa.edu.ph'
 . . . . . . . . . . . . . . . . [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)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c34d3b3180000040300473045022050cd61e9810c5a86c1e47abe342529e6d3b642371895788be402fbac08aac23402210098b2d2eb3b4d345b8d49ed3e4c1d980e5735ad10de3b85ded40a9f64680a72550076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c34d3b320000004030047304502207e84e2b987c78d7b02f2df14e0d7e06d800791c16ee8b9b3362732f9b15e3665022100b5ab485e1dcbb46453b5ea74eae665fdbbb30c427529a32129712dc6064d53a6
 . . . . [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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