aula.istec.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:9b:79:ad:77:4a:81:6e:05:2b:1f:61:c7:78:2b:e4:5c:91 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=aula.istec.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:9b:79:ad:77:4a:81:6e:05:2b:1f:61:c7:78:2b:e4:5c:91
Serial Number (int): 401354647874142633202238514864258067750033
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 56:55:96:32:cb:f4:11:85:c2:0a:cd:5c:47:67:9e:bb:bb:a1:f9:12
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b1:0b:d2:46:d0:96:16:1b:6c:16:c7:2a:dd:53:f4:ff:98:36:d2:73
Fingerprint (sha256): b8:64:7c:ce:34:3e:9b:1f:37:bd:3f:8f:28:33:38:eb:ad:17:ef:29:4b:94:bb:b7:bc:48:36:8e:3e:b1:e0:41

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate aula.istec.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for aula.istec.org

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

aula.istec.org

Other certificates including the domain name istec.org

(limited to 100 certificates)
submissions.istec.org
celsius.istec.org
biredial.istec.org
biredial.istec.org
istec.org
*.istec.org
istec.org
istec.org
istec.org
aula.istec.org
istec.org
istec.org
istec.org
istec.org
www.istec.org
www.istec.org
istec.org
istec.org
biredial.istec.org
*.istec.org
aula.istec.org
istec.org
istec.org
istec.org
istec.org
istec.org
aula.istec.org
istec.org
istec.org
biredial.istec.org
submissions.istec.org
istec.org
istec.org
aula.istec.org
istec.org
biredial.istec.org

Certificate

The complete raw certificate details for aula.istec.org in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFUjCCBDqgAwIBAgISBJt5rXdKgW4FKx9hx3gr5FyRMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMDUwMjE5NDhaFw0y
MDA1MDUwMjE5NDhaMBkxFzAVBgNVBAMTDmF1bGEuaXN0ZWMub3JnMIIBIjANBgkq
hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo0N4xErT5+j0OUXS1mJtgYooXHH/log2
i1VP4ebSzk3XMHZGKTYIGtTZgAanlwAmk4j7ulw5bONDeLZWvx+1IU7BwhHZakvi
bAyUg1RXmhqFy5zZqW5B2Zp6oAtCHMa64ixorIvnTyKzMYx5vT2YENrk3Ck5Nazt
uidznrt2Pf0yzGJqL05+gWPPyUw5j7CSqJq9EJgk7zPsoB7A9Pr4zxWjPTu7HL0u
UV7Db/JUwZTRr292q7c4S4MZ2oGO6KXdRUM3QgN6PdFKuYSgxElUxJhRv+SJ/nHs
bP2D6Ja/EFzDzUx/P4loMTluniqFRMRua349BKl/hhGda1qPGnuKDwIDAQABo4IC
YTCCAl0wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEF
BQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRWVZYyy/QRhcIKzVxHZ567u6H5
EjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRj
MGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5v
cmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5v
cmcvMBkGA1UdEQQSMBCCDmF1bGEuaXN0ZWMub3JnMEwGA1UdIARFMEMwCAYGZ4EM
AQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0
c2VuY3J5cHQub3JnMIIBAgYKKwYBBAHWeQIEAgSB8wSB8ADuAHUAXqdz+d9WwOe1
Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFwE1xprwAABAMARjBEAiBYE6WullJ5
Ycnmt41HOBqo61lBzjVy/EdO4jpv1IF07wIgUUdIrfooTEaXTFFTw0B1rBSIJu58
+WoQW15MTUe7kaUAdQAHt1wb5X1o//Gwxh0jFce65ld8V5S3au68YToaadOiHAAA
AXATXGnUAAAEAwBGMEQCID1HU00BSgH9DUnFKXuoP5UKmFqEZgNByUJUPkhP6+ik
AiBFpLroKUSqCdpUoy2U36hhezVFtgUpR7j1v15PWRK2RzANBgkqhkiG9w0BAQsF
AAOCAQEAfoGf+iZTiL4YT2YlE81T3Z2Nc+LRiGDoBNIMxP9UVBUR5reBXJZCieSt
CDtZaOqoqouHb0i/VBvFBVONHIYCfLtJ4uWALK6S6Hct3tUl0jbafNeNZOkcwhZ6
K2na6/Dd/NC+YPocVEBEmT/UwxIffBUO4MG2DNZNjlv7oKlNYbwify6DAQwC0Ja9
8TjfTlCuna4F8mn60addGl709BXlrukr4po3la0K3d8VW2R4lPVVccgukcdVwlP5
9NNIF/rgsnsRv1H4GwlvMVt2c4cE66gPfW5pchb6XiXGcvJ0ucLV4h43FvCK3uuU
bK3LsItOnR46lqZ5jGM1pwv2DxRVtg==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo0N4xErT5+j0OUXS1mJt
gYooXHH/log2i1VP4ebSzk3XMHZGKTYIGtTZgAanlwAmk4j7ulw5bONDeLZWvx+1
IU7BwhHZakvibAyUg1RXmhqFy5zZqW5B2Zp6oAtCHMa64ixorIvnTyKzMYx5vT2Y
ENrk3Ck5Naztuidznrt2Pf0yzGJqL05+gWPPyUw5j7CSqJq9EJgk7zPsoB7A9Pr4
zxWjPTu7HL0uUV7Db/JUwZTRr292q7c4S4MZ2oGO6KXdRUM3QgN6PdFKuYSgxElU
xJhRv+SJ/nHsbP2D6Ja/EFzDzUx/P4loMTluniqFRMRua349BKl/hhGda1qPGnuK
DwIDAQAB
-----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 401354647874142633202238514864258067750033
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-05 02:19:48 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-05 02:19:48 +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 'aula.istec.org'
 . . . . . . . . [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 20610115267065097208408650020532731676868529840926747187361433272850016202276327293006257934841917091310271847661695072479869542868946430054056568169247676525334407616854464284795203396800569690372628877424151753142889323065933950765143661534769537788287291510110057758536435120816352807682917275605947578230724742234604090405673116816637170239356056271732508727467691565140724935722320505917265072036587168935163134403182541056466522534847887593209660103607375884159127434500139163373369098565554803871194130271317919707130428650430885949025626611964508400416767721990837285134136172033703776234384293170735939815951
 . . . . . . . . . . . . . . . . . . . . [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)
							56559632cbf41185c20acd5c47679ebbbba1f912
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'aula.istec.org'
 . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000170135c69af000004030046304402205813a5ae96527961c9e6b78d47381aa8eb5941ce3572fc474ee23a6fd48174ef0220514748adfa284c46974c5153c34075ac148826ee7cf96a105b5e4c4d47bb91a500750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170135c69d4000004030046304402203d47534d014a01fd0d49c5297ba83f950a985a84660341c942543e484febe8a4022045a4bae82944aa09da54a32d94dfa8617b3545b6052947b8f5bf5e4f5912b647
 . . . . [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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