vyzkum.gov.cz

Issued by R3

About this certificate

This digital certificate with serial number 04:66:a2:fc:b5:c4:d2:93:29:33:52:2e:4d:2d:80:23:13:c2 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=vyzkum.gov.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:66:a2:fc:b5:c4:d2:93:29:33:52:2e:4d:2d:80:23:13:c2
Serial Number (int): 383374592233812244880202468615551866573762
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: c6:e7:c3:55:c8:98:1b:75:42:61:ca:71:21:9b:53:c2:71:18:3b:76
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 70:30:0d:89:a6:b3:46:2e:8c:d8:51:86:dc:70:76:94:18:93:2e:29
Fingerprint (sha256): 1c:40:c0:d9:7c:1b:65:a2:8d:ab:c2:f1:5a:e1:3c:e0:78:ba:49:95:e9:2b:e8:84:61:c1:d3:f7:e8:52:34:96

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate vyzkum.gov.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for vyzkum.gov.cz

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

vyzkum.gov.cz

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prod.frs.gov.cz
tsl.gov.cz
isnipi.gov.cz
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www.snsu.cz
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Certificate

The complete raw certificate details for vyzkum.gov.cz in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE5zCCA8+gAwIBAgISBGai/LXE0pMpM1IuTS2AIxPCMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzEwMTcxMDAyMzdaFw0yNDAxMTUxMDAyMzZaMBgxFjAUBgNVBAMT
DXZ5emt1bS5nb3YuY3owggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDf
1vfefbWrl33//eEAAgmZCij5OcznbyKlNMg68qUHwCBCUHZ8nLgB3v2zBfKBAviX
1D2eaRt2BT4xXi5Fa5zDNgSAtA2erUcEsOzaYrXnpg6Ug9fKILmSYc5oUCh1Rntm
76LZwjSCn3yGk4oRmS1O47M4nx1obFhC+AMz08Ow8j53ydWXPz+Ozb8sgA1OHF/d
c60w5rYQNzdA7u+itPe2A1oubhkGV2bcQo1pdnbSLlf4UHx5EMl27pDjNuDtfrg0
wX7JtdBp3KrY89Sp2q4rmr86r6PStgn2Ai9/hV4gIMg/c535+/avtBYqTiMuWyXb
t+QVYdU82t9JEf6pv7GRAgMBAAGjggIPMIICCzAOBgNVHQ8BAf8EBAMCBaAwHQYD
VR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0O
BBYEFMbnw1XImBt1QmHKcSGbU8JxGDt2MB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJ
QOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3Iz
Lm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcv
MBgGA1UdEQQRMA+CDXZ5emt1bS5nb3YuY3owEwYDVR0gBAwwCjAIBgZngQwBAgEw
ggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdgA7U3d1Pi25gE6LMFsG/kA7Z9hPw/TH
vQANLXJv4frUFwAAAYs9TUw2AAAEAwBHMEUCIQD/cHBw69TuHA2BR+OLLgJRiPfz
PMCuLn1MrWPKmZj3VwIgH5l1yOHZSipB4liq/Fgj8LlSC8/FQq8Xn9uyECNQJAwA
dgDatr9rP7W2Ip+bwrtca+hwkXFsu1GEhTS9pD0wSNf7qwAAAYs9TUxTAAAEAwBH
MEUCIDp/8AKqGPxd6PkUdMNSW17gvDUClsE97/W488nQyVljAiEAw/oTVDudWjjO
FZgkAtvid91aggb/k2O0Zp4vZow+XLAwDQYJKoZIhvcNAQELBQADggEBAGiV7hPp
efwV+1JisZMvVFwtrMwl2D7LHSXt/jUJUDlmri3lkJgTQlwYLzN/RHuL5DSnQpoD
wbWkEuR/jvpmS13ke9vpx53CiKJknZnAKDdpvpT1wwzWlkBvRL2c1sn9P7bPaqtA
Gj59uwtAjhyS3t3OAMANT+iWXZNdch8YA90NFTqZDmvt3WRUcuwezxNjqsnQJN+Y
ZnZOrFXSsF2XfvMm0pAZPWOaXtyP0yGWabAi5aEkd7mm2VDof14xHawv/27dGtHq
OyIjkMMG64FnaGplbOxmEN1rlOkqCMvnTfdmLP3z6vz0j6Ds4mwBBaWUZmXCNhZr
GYHfbNUynnsbp6A=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA39b33n21q5d9//3hAAIJ
mQoo+TnM528ipTTIOvKlB8AgQlB2fJy4Ad79swXygQL4l9Q9nmkbdgU+MV4uRWuc
wzYEgLQNnq1HBLDs2mK156YOlIPXyiC5kmHOaFAodUZ7Zu+i2cI0gp98hpOKEZkt
TuOzOJ8daGxYQvgDM9PDsPI+d8nVlz8/js2/LIANThxf3XOtMOa2EDc3QO7vorT3
tgNaLm4ZBldm3EKNaXZ20i5X+FB8eRDJdu6Q4zbg7X64NMF+ybXQadyq2PPUqdqu
K5q/Oq+j0rYJ9gIvf4VeICDIP3Od+fv2r7QWKk4jLlsl27fkFWHVPNrfSRH+qb+x
kQIDAQAB
-----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 383374592233812244880202468615551866573762
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-17 10:02:37 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-15 10:02:36 +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 'vyzkum.gov.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 28257146796783713697551927359665048051136311671446712276506544233687234735327057252898137349450259842140102145177077430172883761724552226087994869692960142727502123503629003284103238954054006253036485667948665102237199268864531614092998520281477904971266403531301834203838642209001273251351803601917951321963938615331332983910489760948374560003773198701250244685182229732150777208477779379136931960616955613995619056691700867854439751353511371354891201598190180628610333951748700855180733114267259205408949464763428088473369812524846849529127092039402787161431720683556466103575792215157244267242449475033992934699409
 . . . . . . . . . . . . . . . . . . . . [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)
							c6e7c355c8981b754261ca71219b53c271183b76
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vyzkum.gov.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b3d4d4c360000040300473045022100ff707070ebd4ee1c0d8147e38b2e025188f7f33cc0ae2e7d4cad63ca9998f75702201f9975c8e1d94a2a41e258aafc5823f0b9520bcfc542af179fdbb2102350240c007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b3d4d4c53000004030047304502203a7ff002aa18fc5de8f91474c3525b5ee0bc350296c13deff5b8f3c9d0c95963022100c3fa13543b9d5a38ce15982402dbe277dd5a8206ff9363b4669e2f668c3e5cb0
 . . . . [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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