helpdesk.nm.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:07:3f:fa:96:a7:0d:ae:c3:de:e9:3f:94:23:26:fd:86:14 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=helpdesk.nm.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:07:3f:fa:96:a7:0d:ae:c3:de:e9:3f:94:23:26:fd:86:14Serial Number (int): 263803876857273170861841840289237090272788
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: a0:8b:1f:f1:ae:ce:20:4c:c6:c4:03:31:d5:81:67:b7:bb:0f:a4:91
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 5a:45:d1:d9:c2:b0:89:70:c5:33:1f:34:70:8a:7d:6f:0d:2d:82:60
Fingerprint (sha256): 3c:b6:6f:b2:19:36:24:bf:f1:62:8d:e0:b5:36:1f:0e:6a:13:3e:9f:69:a0:e9:cc:09:25:a2:6f:5b:98:93: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 helpdesk.nm.cz
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for helpdesk.nm.cz
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
helpdesk.nm.cz
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odtvs.opac.nm.cz
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Certificate
The complete raw certificate details for helpdesk.nm.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUzCCBTugAwIBAgISAwc/+panDa7D3uk/lCMm/YYUMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA5MTIxMjUzMDFaFw0x OTEyMTExMjUzMDFaMBkxFzAVBgNVBAMTDmhlbHBkZXNrLm5tLmN6MIICIjANBgkq hkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvRZ3FhtD3geqD+R7mP9UFJpVTy8mk7+L uOaPjvgDBJo7XTmLWtWu+d0Z6jKculuNJFCf/OoXsZn0M4p5GnzKdUyBf11CEzmr mSaeTfOLQ2PrvnlOsz6zRg3Y9TdoesR3bwJBkoODlBxU1SWFHrqRq9jlRCSHW0Fm 8GZonLaupZ28dY6OX+Uuxb4YgPXzByFwgVO8ODiZvx7o8Z1oafjnngKQr8Ftwtf1 VclT0EgufPV3NJDqq5FOLAfmT8m+nOLgGMCVsU4nOAuQrDI+Svs5QozfkFPwERDP lnzTocJzFfKHbwW+8Dx8prWYlPlHEI419jQh6jBQTMHGNO+31THB9C4o4NnaSTte i/z5wbhfb9l6qk4lFv/FBtV/8ze1DPR1eDUHx8GzaXz68kSZ/tShc1YTP3U4VowB HunyVAVMcKu61IYZxq+4OXsA86zvZOqPwV0XpA6BleyOHEqjpXSQbfHwuSunW5fU JKXqfa9uwdEM8KyNRP62GNo5hcVjfdYI/CuO1e+huS2xz7lD2DEzZYOqN2TqanJF YRScpVpjNYj/GryFoJRO5n/pHd1yhmFDqf1d3HiBGWM3dXhs2syMKTvs+5m1gMIi jw29m+eT/LGEBTp6UF8f7tcKjuuoiRioyLLdVwhDU9vqBYdhSFXz1OMGvdNLsM2I yU2rjgyrfO0CAwEAAaOCAmIwggJeMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAU BggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUoIsf 8a7OIEzGxAMx1YFnt7sPpJEwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo 7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQt eDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQt eDMubGV0c2VuY3J5cHQub3JnLzAZBgNVHREEEjAQgg5oZWxwZGVzay5ubS5jejBM BgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIB FhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQE gfEA7wB1AOJpS64m6OlACeiGG7Y7g9Q+5/50iPukjyiTAZ3d8dv+AAABbSW/q+oA AAQDAEYwRAIgF2jo409vHKi4byMKyoFiPV7ayqS6aCJ6Y/DH6JMrTY0CIHwo7rrg gGPsJhsdiyoXBb5RGQK9FS8IFnut3gmWFG13AHYAY/Lbzeg7zCzPC3KEJ1drM6SN YXePvXWmOLHHaFRL2I0AAAFtJb+r2wAABAMARzBFAiEA3jkM+uPPVQHTm9iz97il dJuk+7tCrm93q05XpZwGB2MCIBdUWaP+zK/pWThuM2Z2QhpqtqUMzCZJGaoj9j8r nvJyMA0GCSqGSIb3DQEBCwUAA4IBAQA00QNq/6eID/tjf8TV1CXKQdLM7a9xyg+r Lx6uXcmfzf+ixoWA5RuDvlzNwTk4gcrXeeXSHHIuE76rsx2hUlDHoP6KV2DTDdoX CtZwvlHxtbFcH1k0mr/H8FDoBaE2d/9XPNX3BjSYg/lYEs40zeL0DkontbbWnbab c9GnzINDnMr0g5zpHEPFxUj97SLp49I/ZZP/PgeWW6s6SCTAp2M6rSM5QI+VxNs2 0/NPlXXv+jM2Fl1o9/0iyt5yxuzZUQG7gyMjybHOqPHOMCZsoDyMuaNQJfzPSmxq KHdat0VcHxS5z5L1M/gh5VMOJLVJD5xQzEAw4WTQl6L8oTVdVQAS -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvRZ3FhtD3geqD+R7mP9U FJpVTy8mk7+LuOaPjvgDBJo7XTmLWtWu+d0Z6jKculuNJFCf/OoXsZn0M4p5GnzK dUyBf11CEzmrmSaeTfOLQ2PrvnlOsz6zRg3Y9TdoesR3bwJBkoODlBxU1SWFHrqR q9jlRCSHW0Fm8GZonLaupZ28dY6OX+Uuxb4YgPXzByFwgVO8ODiZvx7o8Z1oafjn ngKQr8Ftwtf1VclT0EgufPV3NJDqq5FOLAfmT8m+nOLgGMCVsU4nOAuQrDI+Svs5 QozfkFPwERDPlnzTocJzFfKHbwW+8Dx8prWYlPlHEI419jQh6jBQTMHGNO+31THB 9C4o4NnaSTtei/z5wbhfb9l6qk4lFv/FBtV/8ze1DPR1eDUHx8GzaXz68kSZ/tSh c1YTP3U4VowBHunyVAVMcKu61IYZxq+4OXsA86zvZOqPwV0XpA6BleyOHEqjpXSQ bfHwuSunW5fUJKXqfa9uwdEM8KyNRP62GNo5hcVjfdYI/CuO1e+huS2xz7lD2DEz ZYOqN2TqanJFYRScpVpjNYj/GryFoJRO5n/pHd1yhmFDqf1d3HiBGWM3dXhs2syM KTvs+5m1gMIijw29m+eT/LGEBTp6UF8f7tcKjuuoiRioyLLdVwhDU9vqBYdhSFXz 1OMGvdNLsM2IyU2rjgyrfO0CAwEAAQ== -----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 263803876857273170861841840289237090272788 . . . . . . . . [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 2019-09-12 12:53:01 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-11 12:53:01 +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 'helpdesk.nm.cz' . . . . . . . . [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 771410736444409657229317921115957618610415599868739105787363913330691630257544966726575637866874278058534197722866158238421880617903286450968842575977864958862773250948996316453884835551445135972153871483879303430085445907934902821485351078401143126521188664783239413326737944585042342351254636348640982760922433805211557972394941800073829398783632253309368249159316706527940068072772687318944244535962365091982285132070981270248707842275980769425406624223194714070089729285525153204655760943929307864390058321690540199187488937613628388803106535941682241445713180908820303962463937950922019359133334437672422926944314518534043091209809901199263496598419701660978392109942625697382366777288499734845654558456422085112713867653658901182405972126036951540333342051698432076301506648804247675157118814061597270109470868465990631950086614089888653893457382795111345537860593445791196734041879571706888129879362370338754512837114094197327360106245214941850054322500259559105347362840996423183481321838587621674899232138666315081439836606757139845426430740610746960141505507487847318058290909999954791795335423844814953201413999642103075225451392683058603009404845686939255862379585735728467282615814624569645109949010821128676299617565933 . . . . . . . . . . . . . . . . . . . . [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) a08b1ff1aece204cc6c40331d58167b7bb0fa491 . . . . . . . . . . . . . . . . [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 (18 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'helpdesk.nm.cz' . . . . . . . . . . . . . . . . [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) 00ef007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016d25bfabea000004030046304402201768e8e34f6f1ca8b86f230aca81623d5edacaa4ba68227a63f0c7e8932b4d8d02207c28eebae08063ec261b1d8b2a1705be511902bd152f08167badde0996146d7700760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d25bfabdb0000040300473045022100de390cfae3cf5501d39bd8b3f7b8a5749ba4fbbb42ae6f77ab4e57a59c0607630220175459a3feccafe959386e336676421a6ab6a50ccc264919aa23f63f2b9ef272 . . . . [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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