www.cost-jet.eu
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:e9:03:fa:f1:e5:47:20:8d:41:30:ad:39:79:ac:a9:91:62 was issued on by Let's Encrypt.
With 10 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=www.cost-jet.eu
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:e9:03:fa:f1:e5:47:20:8d:41:30:ad:39:79:ac:a9:91:62Serial Number (int): 340627939952287366865562694704975938425186
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 67:82:a9:4c:15:e8:d9:23:0b:a6:41:bb:4a:77:a9:d0:8c:c2:b0:e7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): a7:63:9b:19:1e:b0:6e:4e:8b:71:46:c6:cb:03:8c:da:61:01:a7:5f
Fingerprint (sha256): 03:a5:8c:a1:63:f7:6e:49:95:7b:a7:2c:86:06:f7:a1:85:11:bc:d3:e1:fb:cc:37:c5:9a:75:4f:3a:b0:c9:98
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.cost-jet.eu
10
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.cost-jet.eu
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
frontiers2019.rub.de
japanplasmadays.rub.de
rdpci.rub.de
rdpci.ruhr-uni-bochum.de
rdplasma.rub.de
sfb1316.rub.de
www.cost-jet.eu
www.ep2.rub.de
www.ispc-conference.org
www.plasma-school.org
japanplasmadays.rub.de
rdpci.rub.de
rdpci.ruhr-uni-bochum.de
rdplasma.rub.de
sfb1316.rub.de
www.cost-jet.eu
www.ep2.rub.de
www.ispc-conference.org
www.plasma-school.org
Other certificates including the domain name cost-jet.eu
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.cost-jet.eu in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGEjCCBPqgAwIBAgISA+kD+vHlRyCNQTCtOXmsqZFiMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA4MzAwMDI1MjFaFw0x OTExMjgwMDI1MjFaMBoxGDAWBgNVBAMTD3d3dy5jb3N0LWpldC5ldTCCASIwDQYJ KoZIhvcNAQEBBQADggEPADCCAQoCggEBAO87Er61U9DWikal2HDleXkDnvCwIjhs dipJ5tr8Age+bJDGI5Z/feozY5uuaM2SgpsP6lCF8WPzfV5xiYFuKwRSGvPDu5ci KOZqDVodnL5VTe3c2Yala+2Oqqd72NsXYvQXvKrrCqfwudHXopFgLcM3Hy8NY1ii /jbQ48dlT3rX/IYqZXMWQzZJcVxqn9w69MQXCcWrDd2N7NrrBsmmZ6ayLguk2zeo Zw0uYkUFG6INVEkYi80P0zXpwd3epgMOl74I2VUAoCtZ/DLXEvSR0LVH25KyYE4X S4Ye6PIkXnvMTt06kkw/2BKLQ+Adkuy5C/fMVL52ib871SgQJoJkz+UCAwEAAaOC AyAwggMcMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYB BQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUZ4KpTBXo2SMLpkG7Snep0IzC sOcwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEE YzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQu b3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQu b3JnLzCB0wYDVR0RBIHLMIHIghRmcm9udGllcnMyMDE5LnJ1Yi5kZYIWamFwYW5w bGFzbWFkYXlzLnJ1Yi5kZYIMcmRwY2kucnViLmRlghhyZHBjaS5ydWhyLXVuaS1i b2NodW0uZGWCD3JkcGxhc21hLnJ1Yi5kZYIOc2ZiMTMxNi5ydWIuZGWCD3d3dy5j b3N0LWpldC5ldYIOd3d3LmVwMi5ydWIuZGWCF3d3dy5pc3BjLWNvbmZlcmVuY2Uu b3JnghV3d3cucGxhc21hLXNjaG9vbC5vcmcwTAYDVR0gBEUwQzAIBgZngQwBAgEw NwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5j cnlwdC5vcmcwggEGBgorBgEEAdZ5AgQCBIH3BIH0APIAdwDiaUuuJujpQAnohhu2 O4PUPuf+dIj7pI8okwGd3fHb/gAAAWzgIIDgAAAEAwBIMEYCIQC1inHg7qxAhdRO P1AJqQjZonkpHbjvycGDaOUUKjDuVQIhAOUJ79g3yQUcbSk3mb3wb9V6lg3Y6u0p gb2uTdFlun6MAHcAKTxRllTIOWW6qlD8WAfUt2+/WHopctykwwz05UVH9HgAAAFs 4CCA0gAABAMASDBGAiEAzZKXrBOt2fSdKIzYkRbp055rADLKuUEKmNWEXja4hwIC IQDWWVhOIq6kjs7f3nyKDizrAv8G/yhW8qlrfLVMwAVNjTANBgkqhkiG9w0BAQsF AAOCAQEAIck9EYRzz/8T8AQWeGA0bSPoR/NYvrwfePaf0qxd2t4xhYbBBrSxkCTw 79+AHrUvy8LnFd4ht+SrVatTitRExr/0IhGEC4GTAIM30DBM16vn+qNMZxOIKcc/ ikYalBio6jIKosGZ8n2EYSTuSyejJ5tD4FdPoL2mFFZKHZjtoWiw3DhtSIKKfYxn H763SJ8VLGhA7z3k4Akr6MZj8U416Xmp5QjjJrHTej9TqVY+nELsno1og7cLTwbY xtReyIXS+gv90rC3JWcb5VorLOAzLKYO+TjMC4/Ht95ReTOdswKqjlrpkE8qidQp 18/oLwhImAlu7nMa51GsgZfO4Gq7/A== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7zsSvrVT0NaKRqXYcOV5 eQOe8LAiOGx2Kknm2vwCB75skMYjln996jNjm65ozZKCmw/qUIXxY/N9XnGJgW4r BFIa88O7lyIo5moNWh2cvlVN7dzZhqVr7Y6qp3vY2xdi9Be8qusKp/C50deikWAt wzcfLw1jWKL+NtDjx2VPetf8hiplcxZDNklxXGqf3Dr0xBcJxasN3Y3s2usGyaZn prIuC6TbN6hnDS5iRQUbog1USRiLzQ/TNenB3d6mAw6XvgjZVQCgK1n8MtcS9JHQ tUfbkrJgThdLhh7o8iRee8xO3TqSTD/YEotD4B2S7LkL98xUvnaJvzvVKBAmgmTP 5QIDAQAB -----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 340627939952287366865562694704975938425186 . . . . . . . . [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 2019-08-30 00:25:21 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-28 00:25:21 +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.cost-jet.eu' . . . . . . . . [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 30200084978585237768922584345415595033996954863671104571493295191609296930997699105140204379826279208285901814366472142974388255655672658641607305769032611312425771925203525866674734504777111780115117034717292367388357476469741478341388472137267970582503061526305203622742052424838165241551849717575067073400713220374994120033086385025634420709728070672753030056010351437871707294899391947817823633261354401451008003104551212015363261647553792831794902081650971128732252219485758281267885686998837888885052155734364285470177173504299549823185415032386209146664337927132519975897261357249313211991349018364407854714853 . . . . . . . . . . . . . . . . . . . . [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) 6782a94c15e8d9230ba641bb4a77a9d08cc2b0e7 . . . . . . . . . . . . . . . . [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 (203 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'frontiers2019.rub.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'japanplasmadays.rub.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rdpci.rub.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rdpci.ruhr-uni-bochum.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rdplasma.rub.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sfb1316.rub.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cost-jet.eu' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ep2.rub.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ispc-conference.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.plasma-school.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 (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f2007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016ce02080e00000040300483046022100b58a71e0eeac4085d44e3f5009a908d9a279291db8efc9c18368e5142a30ee55022100e509efd837c9051c6d293799bdf06fd57a960dd8eaed2981bdae4dd165ba7e8c007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016ce02080d20000040300483046022100cd9297ac13add9f49d288cd89116e9d39e6b0032cab9410a98d5845e36b88702022100d659584e22aea48ecedfde7c8a0e2ceb02ff06ff2856f2a96b7cb54cc0054d8d . . . . [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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