www.cost-jet.eu
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:97:8e:cd:b0:aa:41:af:4f:23:cb:4a:59:c9:77:d9:a3:05 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): 03:97:8e:cd:b0:aa:41:af:4f:23:cb:4a:59:c9:77:d9:a3:05Serial Number (int): 312909313579793111947960442388035283821317
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: b2:bc:9a:04:a8:d9:d0:3d:98:1b:97:71:ce:fd:e3:71:5b:44:8f:79
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): e1:30:64:09:b3:7e:5d:2b:6c:d2:93:13:65:b7:a7:fe:72:7a:fd:06
Fingerprint (sha256): 6e:78:e3:2b:50:f4:64:7b:fe:6d:5a:25:01:2d:33:da:55:d7:a3:54:f1:eb:3a:77:29:b7:99:5e:c2:2f:b9:fe
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----- MIIGEDCCBPigAwIBAgISA5eOzbCqQa9PI8tKWcl32aMFMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA1MDEyMDM3MDhaFw0x OTA3MzAyMDM3MDhaMBoxGDAWBgNVBAMTD3d3dy5jb3N0LWpldC5ldTCCASIwDQYJ KoZIhvcNAQEBBQADggEPADCCAQoCggEBANiFxmj27czCtxpZd9tCSO+VrMVwW67a SqkkIMK6yRrV/QkX2WppeGdu+L8CC21r+LCGSqA8Rf8hPwp5o1r9ourXDpWBm5S5 GQr9uV+RMiiMLmmHKuj7zKc1opIdpWAP0dXvsyynXLAjtvFL6b8bpZOB4m2a+DLM l0QL4AY0nzxktuZp2lq2kd4sXfC3uq4NeiOPEIGOD7ktsbM3UMyz+7GsbjmdVdTp ntSHoQXESWukdP1fyWpbbGdRVsS66NHIRki6gV0V5AEoXra2R0ZN2u/MylQbcrXu b2W8nhQWBjYNbEy0q6ALwaW680DtT/l0qgo+WZOXJWSaqYpfXgwDhzkCAwEAAaOC Ax4wggMaMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYB BQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUsryaBKjZ0D2YG5dxzv3jcVtE j3kwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEE YzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQu b3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQu b3JnLzCB0wYDVR0RBIHLMIHIghRmcm9udGllcnMyMDE5LnJ1Yi5kZYIWamFwYW5w bGFzbWFkYXlzLnJ1Yi5kZYIMcmRwY2kucnViLmRlghhyZHBjaS5ydWhyLXVuaS1i b2NodW0uZGWCD3JkcGxhc21hLnJ1Yi5kZYIOc2ZiMTMxNi5ydWIuZGWCD3d3dy5j b3N0LWpldC5ldYIOd3d3LmVwMi5ydWIuZGWCF3d3dy5pc3BjLWNvbmZlcmVuY2Uu b3JnghV3d3cucGxhc21hLXNjaG9vbC5vcmcwTAYDVR0gBEUwQzAIBgZngQwBAgEw NwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5j cnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdgBvU3asMfAxGdiZAKRR Ff93FRwR2QLBACkGjbIImjfZEwAAAWp1VHAXAAAEAwBHMEUCIQDysOTs4xUOU/Na 9CT69u3aPKCBz/5DeYSGwsbYVCQlXAIgA6+oOjOazwplDKUGM2xE4YaF8U8ErWXS L1E9ES2iUr8AdgBj8tvN6DvMLM8LcoQnV2szpI1hd4+9daY4scdoVEvYjQAAAWp1 VG+/AAAEAwBHMEUCIF0mn1fht9R1ub238gBe/7iO4CL6bJbiELRfVeQQR8LEAiEA gHb/an0GsM+zJLVmaV4JgDQ29NIY2uKMsnlTeC0b5U0wDQYJKoZIhvcNAQELBQAD ggEBAEXoRIEdVja9rlMU4/H5eDL5X8HBP6Y0goXwc23Af68SWqO8hGT1Hwzp/Z7Q bN9XK6S4FSQToegeNFNJX9d+D7962VXh+ByBO7bEgQEg9cI/O35ZX+cP4CVAqQyh fW9U0lilOLSm5PQCxMNistbYPWfyHohgdLOVMEfOCmfWNAyY7jf4DlIMqk2j7rMz n7ygkJ6Pi5u5JdMNkstlugBNOqsl+LK6fp1iOO66lEfv85M6+tJgkbMEiTGkhmyi stHMNugmGKREIZB3LpFNUPgIYFq6WeCMItyWiW0ccB63tZ3wy6sK5pxVEGYeRYwl EaXdfAOUomXNwcwasbmRHU0WbG0= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2IXGaPbtzMK3Gll320JI 75WsxXBbrtpKqSQgwrrJGtX9CRfZaml4Z274vwILbWv4sIZKoDxF/yE/CnmjWv2i 6tcOlYGblLkZCv25X5EyKIwuaYcq6PvMpzWikh2lYA/R1e+zLKdcsCO28Uvpvxul k4HibZr4MsyXRAvgBjSfPGS25mnaWraR3ixd8Le6rg16I48QgY4PuS2xszdQzLP7 saxuOZ1V1Ome1IehBcRJa6R0/V/JaltsZ1FWxLro0chGSLqBXRXkAShetrZHRk3a 78zKVBtyte5vZbyeFBYGNg1sTLSroAvBpbrzQO1P+XSqCj5Zk5clZJqpil9eDAOH OQIDAQAB -----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 312909313579793111947960442388035283821317 . . . . . . . . [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 2019-05-01 20:37:08 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-07-30 20:37:08 +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 27333440803085902961214992396146807715030216334277560016662324291654649634356624483275876538966703974935080490461329185787278859081653021379199459736384200805665778960705431915915255787909774361756286397506418305211336330365470987804804152576562877589245770884433887188829300430170241137387842454337463295931155959018818133493357945868245361055588611385028119278920833271566209682245096256200490015708904850209153030510310136957707773682480271365601420191293553668055158742872568208526516324521538580609899785218966189246877802272383333225703310043666375021931146322743912225865081777695427067985744368178358238021433 . . . . . . . . . . . . . . . . . . . . [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) b2bc9a04a8d9d03d981b9771cefde3715b448f79 . . . . . . . . . . . . . . . . [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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016a755470170000040300473045022100f2b0e4ece3150e53f35af424faf6edda3ca081cffe43798486c2c6d85424255c022003afa83a339acf0a650ca506336c44e18685f14f04ad65d22f513d112da252bf00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016a75546fbf000004030047304502205d269f57e1b7d475b9bdb7f2005effb88ee022fa6c96e210b45f55e41047c2c40221008076ff6a7d06b0cfb324b566695e09803436f4d218dae28cb27953782d1be54d . . . . [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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