liber-lag2012.techlib.cz
Issued by R3
About this certificate
This digital certificate with serial number 04:7c:35:9d:cb:e2:41:39:46:da:22:bb:fd:ac:95:1a:27:d5 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=liber-lag2012.techlib.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:7c:35:9d:cb:e2:41:39:46:da:22:bb:fd:ac:95:1a:27:d5Serial Number (int): 390715425634875646603668119096430924802005
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 40:d3:33:d5:9e:a8:bc:9e:27:65:ea:b4:62:cf:82:7b:4a:3a:06:d2
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 27:35:eb:4e:df:6b:34:b3:6b:ec:cf:69:78:5d:60:b6:8e:39:ff:bd
Fingerprint (sha256): 27:9c:4a:c8:62:c2:11:60:c1:b9:62:54:f6:22:77:fa:25:2e:c5:9c:7d:6d:c0:f4:cf:b1:6e:76:61:ca:ba:4c
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate liber-lag2012.techlib.cz
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for liber-lag2012.techlib.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
liber-lag2012.techlib.cz
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Certificate
The complete raw certificate details for liber-lag2012.techlib.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFNzCCBB+gAwIBAgISBHw1ncviQTlG2iK7/ayVGifVMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzAzMjEyMjA4MjVaFw0yMzA2MTkyMjA4MjRaMCMxITAfBgNVBAMT GGxpYmVyLWxhZzIwMTIudGVjaGxpYi5jejCCASIwDQYJKoZIhvcNAQEBBQADggEP ADCCAQoCggEBANsf+OnzW8vVZyBHz8bZPzmsFZhhLT8M34HPGZmWwnbOOAhcExWB DFv4RLpzSI0MPc0KvfiehDCYPTswCUIdVEH6/0M4rthStfZ2auOe7+dZ0JDABgSW khqEq2WZCoNZFnWo/XeBY9DrK1imd0nFe3ussNXopxxk0KGoEOq1nmdjMhdhIM6I dfMyJ/Ep0YFOyGJtZxrM4V1HZfFl3X/J9J+zRQI70g6S2DLSOHoDeRskHu3J9SmR pEx/JNyGgKLVQ13b9ZId8xF9hft60ha+zj1q3+UOxnZA0ne2a1tf2CVwYZXxHUJI 8X9Jw5YgFnjs992jFK64hPdA3Ws2mA2omrcCAwEAAaOCAlQwggJQMA4GA1UdDwEB /wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/ BAIwADAdBgNVHQ4EFgQUQNMz1Z6ovJ4nZeq0Ys+Ce0o6BtIwHwYDVR0jBBgwFoAU FC6zF7dYVsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzAB hhVodHRwOi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5p LmxlbmNyLm9yZy8wIwYDVR0RBBwwGoIYbGliZXItbGFnMjAxMi50ZWNobGliLmN6 MEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUH AgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBQYKKwYBBAHWeQIEAgSB 9gSB8wDxAHcAtz77JN+cTbp18jnFulj0bF38Qs96nzXEnh0JgSXttJkAAAGHBm5P vwAABAMASDBGAiEAiwvN1Podv3bNFCN1RhHzpojS2ZB7k4Vmsen7Ea4TjRUCIQCO t8PsrfAXAerY4T7yccHtuYB3t8x6C4pw/quLkDf5uwB2AOg+0No+9QY1MudXKLyJ a8kD08vREWvs62nhd31tBr1uAAABhwZuT7UAAAQDAEcwRQIhALNVjREG9YhHZnhG xC7YsBN+sTyYqUwcNc1IiyqygSZUAiAwRDXJfKY0orV3+AbqTWs/h3Htups8WUzY OGmei7sY5zANBgkqhkiG9w0BAQsFAAOCAQEAZAsPIQG2VxBKNnRrn6rQGZ0N/KvJ rzZpMHQctMkVL9JEHfQ8XL1RwcNqkpDp1i5mA2dGLB3EEgkgUm612hH6T5KN4xrO 1NZWuHGmr4JB0dnuazQc2N9YRB4ba8HeExAgHf50Mu484qLx8HnrK931ddnFmbrK z8sH66juHCiewsPRMVvb1zruOQzAHyxhs6Xir/uoKyr6AKEzwbu5RzlJZT0lR8gz hUugIefEL51AobKVgrrtQtYhj4VXdGLuohGiNTwrN3IKKlTBeNZz/O+Hhd4ltpwK kspbrtx13YY3xgMZCJEsE931P/XHVXazaGYO+hWRBDLsUIfDLAsUsLsqiQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2x/46fNby9VnIEfPxtk/ OawVmGEtPwzfgc8ZmZbCds44CFwTFYEMW/hEunNIjQw9zQq9+J6EMJg9OzAJQh1U Qfr/Qziu2FK19nZq457v51nQkMAGBJaSGoSrZZkKg1kWdaj9d4Fj0OsrWKZ3ScV7 e6yw1einHGTQoagQ6rWeZ2MyF2Egzoh18zIn8SnRgU7IYm1nGszhXUdl8WXdf8n0 n7NFAjvSDpLYMtI4egN5GyQe7cn1KZGkTH8k3IaAotVDXdv1kh3zEX2F+3rSFr7O PWrf5Q7GdkDSd7ZrW1/YJXBhlfEdQkjxf0nDliAWeOz33aMUrriE90DdazaYDaia twIDAQAB -----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 390715425634875646603668119096430924802005 . . . . . . . . [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 2023-03-21 22:08:25 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-06-19 22:08:24 +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 'liber-lag2012.techlib.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 27661954926073802383016183720288879873293176932990220585494328609530617709352984334030218341968243959862757064034164672095829390790112705108035593806383708977107317632584587470809579093355928281170683911031663269562493568922614600764644999732478680967651822642370693081636126415011875766233334812485229114167220574940840877980085597930179961654929446449750417235796311710517643986883179106166061652660302635368235645506403925909966547122178953728181133050121605633574608844105631612235834687143485327456972558007926100566482966078202430909243510239900031009831197849605270090565528321833614221725680851493171835214519 . . . . . . . . . . . . . . . . . . . . [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) 40d333d59ea8bc9e2765eab462cf827b4a3a06d2 . . . . . . . . . . . . . . . . [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 (28 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'liber-lag2012.techlib.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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f1007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000187066e4fbf00000403004830460221008b0bcdd4fa1dbf76cd1423754611f3a688d2d9907b938566b1e9fb11ae138d150221008eb7c3ecadf01701ead8e13ef271c1edb98077b7cc7a0b8a70feab8b9037f9bb007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e00000187066e4fb50000040300473045022100b3558d1106f58847667846c42ed8b0137eb13c98a94c1c35cd488b2ab28126540220304435c97ca634a2b577f806ea4d6b3f8771edba9b3c594cd838699e8bbb18e7 . . . . [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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