www.smartcitychallenge.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:c1:4e:87:2e:93:0d:1f:6c:bf:d0:9a:6a:d4:e6:f5:ad:a0 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=www.smartcitychallenge.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:c1:4e:87:2e:93:0d:1f:6c:bf:d0:9a:6a:d4:e6:f5:ad:a0
Serial Number (int): 327115736299410431981075068689027071061408
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: d5:76:80:f9:3b:31:05:f4:19:42:23:1b:fd:7c:bb:a9:4f:ab:57:eb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): dd:2a:ad:87:e1:bc:6f:1e:65:68:c3:bf:b9:ad:a6:f0:80:73:6b:aa
Fingerprint (sha256): 9b:e4:98:e9:01:7b:b0:12:e6:0f:23:b9:b2:fc:02:6d:57:fc:39:5d:8c:0a:ed:a0:d8:60:c2:f5:70:bf:53:27

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 www.smartcitychallenge.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.smartcitychallenge.com

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

www.smartcitychallenge.com

Other certificates including the domain name smartcitychallenge.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.smartcitychallenge.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGbDCCBVSgAwIBAgISA8FOhy6TDR9sv9CaatTm9a2gMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMjMwODQ0MTNaFw0y
MDAzMjIwODQ0MTNaMCUxIzAhBgNVBAMTGnd3dy5zbWFydGNpdHljaGFsbGVuZ2Uu
Y29tMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvLGtr7v89CFZEWu0
jbrK2twzfBVk4mbNn66fu8m1YlVgrHesSm+SVPpq7ccPmRuV+enkMuk7UxWdZrO0
ETmgLIlZW928HBkZfGkf5XArT844dC5LyJdctDW5xojE0ftnqwhYE3NAALvF/o2w
U0uBTdURuX8p9tcuQpMiLGUWJn7pzSFnZog5RAgBSj02tPXs0V2N3cj3ThaLykjr
BHpshb8TTBKeR/YAvdrBm/+D7MTetUmbA1Jt6KBLPBWWfrMf3G1H0d3VXTwMLbqr
tNuU7zp27GoOZgrIIWQcdVK/9JQbt1FT6Vl/nM8oNQgQTeEGTIxMIsG31M+jHbYe
aXsvUrKNv+97dkisUB8wmf23VgbxkPMBUUY8niKRYww0JhmbYKH327+Ugj6GJz2n
lGWbJ/MSAv8lYNGtfzvUYRyikAuEBbEPTbkQg57BCUPfKR+zstTMV5dmyD01tURp
XZon5a8uF1F6JP7C611651h3K0rFx94HA8WWBJVm6WJl95cNJQQL/AksYpzecNH0
Cd3hyDYK+mMx6prQ1c9IbCikR/CcvVfIQibQ55/t5qzWtODgMLlJ/sHkB6cq1Jhp
BNEMFDjjikjV/ljcSuYr5JzSCKl736AmJ5BeKD+efGm8NsXoTfDceXX+lConbujk
uUng2A6tA6nRQz6+ZL9LkcTBLUcCAwEAAaOCAm8wggJrMA4GA1UdDwEB/wQEAwIF
oDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAd
BgNVHQ4EFgQU1XaA+TsxBfQZQiMb/Xy7qU+rV+swHwYDVR0jBBgwFoAUqEpqYwR9
3brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRw
Oi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRw
Oi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAlBgNVHREEHjAcghp3d3cu
c21hcnRjaXR5Y2hhbGxlbmdlLmNvbTBMBgNVHSAERTBDMAgGBmeBDAECATA3Bgsr
BgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0
Lm9yZzCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2APCVpFnyANGCQBAtL5OIjq1L
/h1H45nh0DSmsKiqjrJzAAABbzIki6cAAAQDAEcwRQIgPMIPODE7DJhoDFuLTUHA
pJWcE/CoJdEXGiiDy4/p+RsCIQCAzbZ5rkDqpuprSwBHdCyL69x999RVcVuqTjQI
2LGziAB2AAe3XBvlfWj/8bDGHSMVx7rmV3xXlLdq7rxhOhpp06IcAAABbzIki80A
AAQDAEcwRQIhAKncvoi4WFrvYOQSdipzlro47wdkhLFnCojpkCEwFn6jAiAVj6Jh
8h3Kh1I56HMnLH24cfcfaXCwZBeYuhUT8Y5xqDANBgkqhkiG9w0BAQsFAAOCAQEA
H3ZNqW4n5YyzvKFxYLWMahTPINmKwLSwmdBUnEDehu+DmXXnMgQvHEurOgb9YMkS
jrBG59b2aqyeWaFXekafykOEnKjnJEEsDkQqCli2uEXWK7lvJV3pEI0AGFc54vYA
ynae8Ccr5PEBUP86f1YKmADVQWKR247c+Na997JW/ULE9I5xFzcnn2sXwzoSU1pA
BJw/5A0gK31c21v9sAQP26kBVcJxBJKiP/r7+EihApDNQn10vCvBDn3JLOWjpScp
G+v/yhwUOxPpChCfgzErHv+fkNqGnwiH2HUqmTm4Qno9/iUxpscABhFawj+ZeE5Z
K3eUhbKFzsVa3kh5Xl97zw==
-----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 327115736299410431981075068689027071061408
 . . . . . . . . [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 2019-12-23 08:44:13 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-22 08:44:13 +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 'www.smartcitychallenge.com'
 . . . . . . . . [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 769804588250848788244205345836865876976951221971954371424749153413896811465802893234169877949466399779913193722621503144438783514829231778891042142008996449010189101241115509936362455688853953872119084201693262876084463927080037500593306357368878144088237801845042493035082965987217740469761055594007923827165004200211929781135440330084206389265301100646211289932484986690376838736083988827331287411546581846114378063405336563029600418423812076569508440126719071263851191509742749790137349210464417618242177133472013425976127016369786944854771704153047556761154545888223416744219416589117672971311296029477371858144720663672178048400655863316617966455614475740394246272217991072727139970088278773961334563785120780394139655622076468671839377571171623401364422481936484255823206110213302692200576089985729217845923964041029039751176584649949640970167086583980419976249521590358671091173603576726725259732617755098571673668213117779833532260318023209153726695394012609029598260622122687356905541165209919832774569861415897645970910994036229226938233534842677683823522155605838528779206260053134471411971928404372139936344651341796248624193402113628856203375321526135917287380337875207594921105688558103876449387888434915641524328934727
 . . . . . . . . . . . . . . . . . . . . [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)
							d57680f93b3105f41942231bfd7cbba94fab57eb
 . . . . . . . . . . . . . . . . [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 'www.smartcitychallenge.com'
 . . . . . . . . . . . . . . . . [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)
							00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f32248ba7000004030047304502203cc20f38313b0c98680c5b8b4d41c0a4959c13f0a825d1171a2883cb8fe9f91b02210080cdb679ae40eaa6ea6b4b0047742c8bebdc7df7d455715baa4e3408d8b1b38800760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f32248bcd0000040300473045022100a9dcbe88b8585aef60e412762a7396ba38ef076484b1670a88e9902130167ea30220158fa261f21dca875239e873272c7db871f71f6970b0641798ba1513f18e71a8
 . . . . [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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