iymforum.ptsem.edu

Issued by R3

About this certificate

This digital certificate with serial number 04:34:2d:df:43:c3:cb:a3:83:2a:a9:0b:54:ce:f0:ac:71:83 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=iymforum.ptsem.edu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:34:2d:df:43:c3:cb:a3:83:2a:a9:0b:54:ce:f0:ac:71:83
Serial Number (int): 366204801323373519433695659113574396883331
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 6f:ec:4b:ef:dc:a9:f8:e2:78:7d:dd:e1:08:c9:e8:d5:39:f2:b4:9f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 4e:74:c3:8d:12:be:f2:b4:09:72:1c:ea:f1:81:01:0f:56:7d:03:71
Fingerprint (sha256): 08:73:6c:f0:c5:a0:2d:66:77:f0:e1:42:a9:2e:f7:92:e4:73:a5:42:2e:04:6e:95:9a:73:c2:de:3a:90:ab:0b

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

Revocation information

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

Check the revocation status for certificate iymforum.ptsem.edu

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for iymforum.ptsem.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

iymforum.ptsem.edu

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Certificate

The complete raw certificate details for iymforum.ptsem.edu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu2h4PLLTUtRd7xAoBrvd
F5SoxRTvb6TCDliMvc0bzihhqn2fsVagtn2tGejPX5tPwMSGhN9DM6Jv9PRMGlQf
lUu9dTGQowSoSfhRrtbU6BSG6WvZyOP31hg1M/9fldvNcgtc0WZMOPaZ5lcfjjoD
EP2XwVYqM2wNV0Zcm/1f6lyYgM8bWx9uZ+rkKO12NgTNhYlbkIbY00ovlMq3x6UY
/p9Ddyx3oOgq9d0FIOhUEoaxuENlxsMCJlZqAL+zlzjyfUpn2vQliEzD8hpXkMFS
k9yxh7aT1bBdvufL9wJ+WNyhMCg+CpJNrsbhtU3ORw+YMl8S48L93EtqKY5Gql7i
dQIDAQAB
-----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 366204801323373519433695659113574396883331
 . . . . . . . . [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 2023-08-27 13:28:33 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-25 13:28:32 +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 'iymforum.ptsem.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 23658078946004897966625337787769015816684144024457612544591939389601339697946095050920862621309589157384330750668364939123223826574085126730930116917923803059622269299932250914343450185728585827500478234692934522882955017558649751942574253711688969099024590455850274840187616691308113355962100674540952241041712648270969873703483956628644061877587770332723458393113828993385523561070078004211722326850846779682189872259108020254783247819963512779245018704212918784026264121429881807710808216614482633439546004571912913083392901423201696534617171954169155631763054550054498156471230427787363494725483156764347657544309
 . . . . . . . . . . . . . . . . . . . . [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)
							6fec4befdca9f8e2787ddde108c9e8d539f2b49f
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'iymforum.ptsem.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a37657f9c0000040300483046022100e657bf8fcec7cf038671fba029641899a696921f2380f939685e0d134cb5d39e0221008ce13194a45595c6dc1c02f085f3fb3839f51509a2509d63b6feafafdb246406007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018a37657fd40000040300473045022100a355384703b9b13e831dd71d17be9e41e7b361de1c31f627f42a56f38660e1fc022037b93c7ca5a9de8aaf0059583cdd401f409f56aae358cb69dd425d9ab255edcc
 . . . . [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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