support.epfl.ch
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:c4:61:af:28:6f:5f:12:52:6b:3b:db:de:b7:68:bb:13:65 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=support.epfl.ch
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:c4:61:af:28:6f:5f:12:52:6b:3b:db:de:b7:68:bb:13:65Serial Number (int): 415274332231206439270783788961234738156389
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: e8:a6:e4:01:9a:b7:29:5e:0e:f3:96:a7:45:e9:de:49:3a:36:6e:67
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): f4:48:85:3b:a9:ee:25:96:b6:48:1e:c3:cc:8e:94:6f:00:a0:3f:8d
Fingerprint (sha256): 01:15:86:9f:17:90:af:ce:da:bd:0a:78:1d:e6:be:6a:8a:14:08:08:16:a2:2b:87:c4:20:87:c7:4b:89:93:b9
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate support.epfl.ch
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for support.epfl.ch
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
support.epfl.ch
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Certificate
The complete raw certificate details for support.epfl.ch in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFVTCCBD2gAwIBAgISBMRhryhvXxJSazvb3rdouxNlMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDA0MDQyMDMwMjZaFw0y MDA3MDMyMDMwMjZaMBoxGDAWBgNVBAMTD3N1cHBvcnQuZXBmbC5jaDCCASIwDQYJ KoZIhvcNAQEBBQADggEPADCCAQoCggEBALD7HY93omgfpkF8L+tjP0avoyFH0cfx 7N+Y6tu3ybOUgkYpl3BSBX/Zh0hYqjfPHdtSbtzwA+JQgdonc0KnnhUjNl/482FG fOTz7p6dO/JuGUcWXmKCw1BfPsUIteKdALk0MaOWc5JqAmTATGhAUgMF7FSPzhOd 9sMh9vHGLz8L/bJIhXpiBSWPTK8xVNTiWXrHAmGiBx46JfYZ8aVl2d98J6kxxbD9 K5tALS22yNEXYHTqZ0j2OlSRbhoyfJajHoGXVRkS2kQSomyJZ2YdUWB7Jcwi6r0U f7StoTPN5BwPJacSC2CR7/SobS2L9NANRX2msYe6lNV2sAQjU7Ne1G8CAwEAAaOC AmMwggJfMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYB BQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU6KbkAZq3KV4O85anReneSTo2 bmcwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEE YzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQu b3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQu b3JnLzAaBgNVHREEEzARgg9zdXBwb3J0LmVwZmwuY2gwTAYDVR0gBEUwQzAIBgZn gQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5s ZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdQDwlaRZ8gDR gkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAAAXFHGh/TAAAEAwBGMEQCIDsB2Mrm ETRwTaKTf8iN4xmMmIF6k+3rh4dyIKfvdCbqAiBmTBdM4A/bPumrCGX/Xo8Ek6zH AdYfJV+pGBlYW5zJNQB2AAe3XBvlfWj/8bDGHSMVx7rmV3xXlLdq7rxhOhpp06Ic AAABcUcaH/QAAAQDAEcwRQIhANrq9q+GjjfhhT3+Hr6/WnUdStmn3k+f7HH41P+0 pzzKAiAH/WAPWJzgLZReMO5j2VTkeBhFUK8jk5qUBAMN6inKwDANBgkqhkiG9w0B AQsFAAOCAQEAI3aR56h09QRVZvPWnXEbgLsPzNdoAZEHTdlT47lCxPjuMAonR32m zWfptbhHxOBT1XHszCZvTQx2Mu0b/RPEGs3m5tF6MCL/ibrAj3NoQXI3w0zqT0V3 Llo2oPu5eBfbzi6oj/xJv7zxhUiNzZhnPZQojrHpyMDgrWj1fRRK5rm/crcmLy2t AuDPA5PjbYR9hkHPpQb7aEdJ3azPDip2jfD+r7KdzteI2tkLWe4rL5iTUWkeieJA xXlY3EgfOS2CjvIVYR2z5B1TNcBxDdiv89qOLMnndhbexCcwFrw2zKrRAOiDxpDm ngINo89PJfBMHQX+4HFCdvyoPj5RLGQLTw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsPsdj3eiaB+mQXwv62M/ Rq+jIUfRx/Hs35jq27fJs5SCRimXcFIFf9mHSFiqN88d21Ju3PAD4lCB2idzQqee FSM2X/jzYUZ85PPunp078m4ZRxZeYoLDUF8+xQi14p0AuTQxo5ZzkmoCZMBMaEBS AwXsVI/OE532wyH28cYvPwv9skiFemIFJY9MrzFU1OJZescCYaIHHjol9hnxpWXZ 33wnqTHFsP0rm0AtLbbI0RdgdOpnSPY6VJFuGjJ8lqMegZdVGRLaRBKibIlnZh1R YHslzCLqvRR/tK2hM83kHA8lpxILYJHv9KhtLYv00A1Ffaaxh7qU1XawBCNTs17U bwIDAQAB -----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 415274332231206439270783788961234738156389 . . . . . . . . [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 2020-04-04 20:30:26 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-07-03 20:30:26 +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 'support.epfl.ch' . . . . . . . . [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 22341771327668838439612180199904867052983422360633925555519956584247652876920473815242356862233414357489470815627540260923824124637718608181370151408177838595821550951145826222208706170866582703461507400469199679369020235978028603181325071410984391542039283863047311336825272734484051560889066521771722939936810045926046710785952873338556184873829932820290693807599708891418659609073014662465344959258687695119265107098825668690021008597226928389113258569475749727365014038553879667339572946627186370780400773626430404282610491743321780836383238341572302624401677086314462604272873394049164058925926650805199354909807 . . . . . . . . . . . . . . . . . . . . [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) e8a6e4019ab7295e0ef396a745e9de493a366e67 . . . . . . . . . . . . . . . . [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 (19 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'support.epfl.ch' . . . . . . . . . . . . . . . . [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) 00ef007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb27300000171471a1fd3000004030046304402203b01d8cae61134704da2937fc88de3198c98817a93edeb87877220a7ef7426ea0220664c174ce00fdb3ee9ab0865ff5e8f0493acc701d61f255fa91819585b9cc93500760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000171471a1ff40000040300473045022100daeaf6af868e37e1853dfe1ebebf5a751d4ad9a7de4f9fec71f8d4ffb4a73cca022007fd600f589ce02d945e30ee63d954e478184550af23939a9404030dea29cac0 . . . . [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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