istec.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:06:d0:0d:d2:d2:89:3c:39:bc:6f:5d:1b:ba:17:ed:ce:5d was issued on by Let's Encrypt.

With 6 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=istec.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:06:d0:0d:d2:d2:89:3c:39:bc:6f:5d:1b:ba:17:ed:ce:5d
Serial Number (int): 350767389127535443970990911505468922646109
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 6c:23:9a:f5:d1:d9:ff:dc:3b:5d:66:9b:59:4f:54:d2:59:e0:ac:7a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): be:22:e4:40:5a:6e:87:d4:ad:05:0d:69:d6:6b:d2:0d:6c:bd:2f:a7
Fingerprint (sha256): c3:65:4e:ea:1c:d6:6e:28:86:7b:0b:0a:cd:e0:6c:d4:aa:0b:c1:72:3b:15:e6:d5:a1:e4:82:d2:96:71:5f:e9

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 istec.org

6

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 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
istec.org
metabuscador.istec.org
submissions.istec.org
vm-unlp.istec.org
www.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
*.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
istec.org
istec.org
aula.istec.org
istec.org
biredial.istec.org

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAozlHC8ThBFb1EOvH7WNL
Ptzd6oa/Qba2xFXp6HJfRZdF/ZetAkVzw+fe/BWBPmVVVL6RjKgZKS9AYZ9BhPSW
PFs3Og9oHwTo6aaerG0pnf//usbLfqEguw5B2dP9G7vXIpyACUoto5sH8sUcaz4B
WwD6Hpo/f5Cg6lOko6aLjkxAOMXdfSzjME1v7s2IJ1J8KV5qlloYgWHyvmH0zlfm
tw3RBmH58gOz3ibPmhnvq6aG7G8iHfglqy8D7wWi3TYye/7irongBH7dRCxdCrP2
5oU45CrL/mUFREIRLSoYLhzK3z6JrlpBDUX/04qB2419u+n6OKyGHbH4GbBBv4E4
eQIDAQAB
-----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 350767389127535443970990911505468922646109
 . . . . . . . . [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 2019-04-10 22:47:13 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-07-09 22:47:13 +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 '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 20605088308912995462523073337911870272373498624315042066955658141592969469879697004351643140091111326229044770569475184958897805370474032688374298727883959293938502630167160115584264006116556000791409649200717635345545466645753606239571909089215109727602764760811387764643227046967846615106529989759173227888368454925494830689624243126523965367548389270562298220988614966233446284732026473069133953093605419845571721398592790540241731440575939366556770817787603370530291999695451152900273217308191524628150219776825864367350037923575474835220049912644698935597274986704661486509835837319928307367768585173937846040697
 . . . . . . . . . . . . . . . . . . . . [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)
							6c239af5d1d9ffdc3b5d669b594f54d259e0ac7a
 . . . . . . . . . . . . . . . . [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 (110 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'aula.istec.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'istec.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'metabuscador.istec.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'submissions.istec.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vm-unlp.istec.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016a09a5fc030000040300483046022100d1c6650588a8ec0738b2ffe68b9d5f0569d36bb83781bce3a6df2f28d4e3554c022100c4b722a6a02fb334d31838116f053fb5318990ec59c7dec6d7f01e8c6bd7c650007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016a09a5fbd100000403004630440220521a33a34543dcca82f2a5960b618f73147ff6a569833f77bc7d1afb3a618d1202205a39f93545143ef57f001fba83426510cb93d56f51e55c86a8361501ebedbfb4
 . . . . [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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