ctc.com.br

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b3:54:a6:ec:f6:3a:4b:85:32:f1:96:1a:ca:b4:95:e6:c1 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=ctc.com.br

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b3:54:a6:ec:f6:3a:4b:85:32:f1:96:1a:ca:b4:95:e6:c1
Serial Number (int): 322359923353210010483849852860291804948161
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: d6:0e:a1:bf:1c:0a:5e:f2:3f:9c:f0:2b:0d:74:a9:dd:52:44:b0:31
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 21:58:aa:e4:eb:ed:c7:b8:4f:95:39:82:62:4e:0f:ba:6e:72:19:f6
Fingerprint (sha256): d8:73:7e:b0:d3:ac:8b:ab:c7:d5:1b:76:fe:39:e4:28:d5:79:1e:f0:53:8d:10:a9:83:f2:6f:fb:0b:81:2e:25

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 ctc.com.br

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ctc.com.br

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

ctc.com.br
www.ctc.com.br

Other certificates including the domain name ctc.com.br

(limited to 100 certificates)
ri.ctc.com.br
ri.ctc.com.br
*.ctc.com.br
ctc.com.br
*.ctc.com.br
ctc.com.br
ri.ctc.com.br
ri.ctc.com.br
ri.ctc.com.br
ctc.com.br
*.ctc.com.br
*.ctc.com.br
ri.ctc.com.br
ctc.com.br
ctc.com.br
ctc.com.br
ri.ctc.com.br
ri.ctc.com.br
ctc.com.br
ctc.com.br
ri.ctc.com.br
ctc.com.br
ctc.com.br
ri.ctc.com.br

Certificate

The complete raw certificate details for ctc.com.br in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzVLcAhdBuYnpfSba4w6u
zB5Y+rz116LJhFAVIEMhgbGaC/RJIHLyWI9R9rVHkiQcAtv9QvjER2ZyT+gGJM7k
pxnTkdF+HuAVwF6IScTtwFB5fv+iI1tvWaS6hBIKAtE/lhbqU63qCGN2cC/caV09
ApmwWKmhZh/Gxd1koZPFTQ5m/yE8qgxWZ2e9KiEhLeilLmUlF82Xb8jNYLXq3jqk
PvN+vhZpx7gX6Y/aSvdgJA0QhBZbgiwMWnizALruKd3c3HLp9Bd38JI3f/IbHNYn
xbbVtpY0WKf/VBCUQICCUzq1z2MVtDUHPcqwSf0HiJGkoW1VhKBFMM6+07szpq1x
+QIDAQAB
-----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 322359923353210010483849852860291804948161
 . . . . . . . . [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 2019-09-20 20:03:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-19 20:03:09 +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 'ctc.com.br'
 . . . . . . . . [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 25919712014440560901100618366395970979297089175678350062498239870548190376582528264062410045489910065191342831832873768000869596940317822081689151026354747260969604120000378835125886442187851618282521337035971605116173141070227445294367192747816117173440040834188400249834877932090244450233134650822740356435007010530993331605847788602623190511237273590392732949893944004552246717838031612054381332872839105924233778792551778782752035338683688685123921567360308821262826206589082839836441030273081587678911406910405435374357175661754708276072577517855549780192422262366581316616091692056602024706501129420723901526521
 . . . . . . . . . . . . . . . . . . . . [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)
							d60ea1bf1c0a5ef23f9cf02b0d74a9dd5244b031
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ctc.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ctc.com.br'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d507c58da000004030047304502201b727b33d8a9687bd46f3ce7b28324479038d77ac9968b6ca1fcf64685d01dcb022100a26dd433b2279e8d7ee94396e9efa9dd1087c7968b16a30fc09360ae90f41e58007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016d507c5ac600000403004630440220492223204a51a43e2c58455a1f395591c4f16a7571c32a4f8d208b8d8ba2397e02200b0c0d913b0220d3af510a748d5262f9e61fd14a31e0d573ac44879fe651ddd0
 . . . . [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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