liber-lag2012.techlib.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:e9:34:d3:40:95:db:36:13:14:83:eb:f9:2d:85:99:c8:2f 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): 03:e9:34:d3:40:95:db:36:13:14:83:eb:f9:2d:85:99:c8:2fSerial Number (int): 340692866028224421838439431156558171064367
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 8c:b5:fd:2f:b0:b2:f4:2c:ac:80:48:6e:60:92:0d:27:eb:8f:33:57
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 15:8f:24:1e:31:a3:02:70:a7:96:d3:fb:fc:c1:80:53:b1:88:a3:67
Fingerprint (sha256): 0b:bf:90:db:9c:3f:4e:b6:51:9a:dd:a2:3a:7b:76:55:b1:41:ba:76:5e:5d:de:93:5a:82:4c:d2:b8:37:91:9b
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.org/Check 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
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
8 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----- MIIGFDCCBPygAwIBAgISA+k000CV2zYTFIPr+S2FmcgvMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNjEwMzEyMjAyMDBaFw0x NzAxMjkyMjAyMDBaMCMxITAfBgNVBAMTGGxpYmVyLWxhZzIwMTIudGVjaGxpYi5j ejCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAL5cFUFc2p4c3W4BP1YM 2Nqf95wkKPbB/Z+G2RNQcayBjSLe3SpWFWh1PakvoL8miGjpt1FL8wENPmBtcgm5 WbugYxbBcK5yTvLxpGtdVNhogoaOYciNaj0Xdf7IKiyVb5v1v319X7Ge1F/5/o4M Z/d0sLyA8FFmf3CWzKXdEW136/mUaGoySqv9/GVgTCLW5Gzhj3r/IRd6VgG8lKuB 6JVkUbOvK0NRxhWlrS3XS4l+ziEkctwPhzqsCmTt8y2wXJ6SKhSt73xAaSQBr8OW 3ZpQmp3S4CPEMOvUe97cMRYv8zomg9J0qE8bnFAEDUzcujNeUx7vaKO0oTCqBRPI G4deMJ9Vofl8IkPAwBLSAy4ySc9fLkG1DKZtX5tXHFhd3PzLU9Xh7ULIyj/l+oCT NVfADYGXonwtYFaYWsoABkEabHDF5xGXt9MG1nnFRxrx6iTuIp+fQR3QUue+Yah4 rL1eMTeRVf7RKmv2DIc80MKoMduI5/g/qjnMOL/37wUKp5v3Xtodzd6m1b/Lq2ti RSDFWXzmBoI3gWlAL5sjK7EiSxV1Ss89T9ruWCelCaib2TNE31F834pTtvatRRIn ESkR3hUumCyOCIfd/Pbq/PXsrgLqL8q4BMUAIimHSFZfDp+YroBKjaUBdp3gmVWq N6XQH+f0t0wrcBJk2VJwmXHBAgMBAAGjggIZMIICFTAOBgNVHQ8BAf8EBAMCBaAw HQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYD VR0OBBYEFIy1/S+wsvQsrIBIbmCSDSfrjzNXMB8GA1UdIwQYMBaAFKhKamMEfd26 5tE5t6ZFZe/zqOyhMHAGCCsGAQUFBwEBBGQwYjAvBggrBgEFBQcwAYYjaHR0cDov L29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8wLwYIKwYBBQUHMAKGI2h0dHA6 Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcvMCMGA1UdEQQcMBqCGGxpYmVy LWxhZzIwMTIudGVjaGxpYi5jejCB/gYDVR0gBIH2MIHzMAgGBmeBDAECATCB5gYL KwYBBAGC3xMBAQEwgdYwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5 cHQub3JnMIGrBggrBgEFBQcCAjCBngyBm1RoaXMgQ2VydGlmaWNhdGUgbWF5IG9u bHkgYmUgcmVsaWVkIHVwb24gYnkgUmVseWluZyBQYXJ0aWVzIGFuZCBvbmx5IGlu IGFjY29yZGFuY2Ugd2l0aCB0aGUgQ2VydGlmaWNhdGUgUG9saWN5IGZvdW5kIGF0 IGh0dHBzOi8vbGV0c2VuY3J5cHQub3JnL3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEB CwUAA4IBAQASrgkPB2cVizzZ6cUxCJuJ5qgB1By/1AU0PNIDy0WgKAvz9MSP7a/i LkO8WpDQUciuRWehQcow3uImhQS7Gf4e8CqSn+yG8eO/aXcLc7uIvmi5wIAJfXHH NgJtKAJaPpyNXhQqEMaWr1otQnzQxJ6km0GFIoZfHlFeHz3v69CeWeYBALO345WJ an/9lSeLC2Y8UlJPXbF1mKh5y5MBpmBikKfORUS0IMk8L4rUxGC5GuFLySxGQIPm DAou2Bae3r6d8gfFDWRW6eCesnC/18CHFj5+xsJ/quw6/TWyvDDGYidyU2t8I3p+ 6gCC311dE+XVDa0jNAsnMDw+W+FNGosU -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvlwVQVzanhzdbgE/VgzY 2p/3nCQo9sH9n4bZE1BxrIGNIt7dKlYVaHU9qS+gvyaIaOm3UUvzAQ0+YG1yCblZ u6BjFsFwrnJO8vGka11U2GiCho5hyI1qPRd1/sgqLJVvm/W/fX1fsZ7UX/n+jgxn 93SwvIDwUWZ/cJbMpd0RbXfr+ZRoajJKq/38ZWBMItbkbOGPev8hF3pWAbyUq4Ho lWRRs68rQ1HGFaWtLddLiX7OISRy3A+HOqwKZO3zLbBcnpIqFK3vfEBpJAGvw5bd mlCandLgI8Qw69R73twxFi/zOiaD0nSoTxucUAQNTNy6M15THu9oo7ShMKoFE8gb h14wn1Wh+XwiQ8DAEtIDLjJJz18uQbUMpm1fm1ccWF3c/MtT1eHtQsjKP+X6gJM1 V8ANgZeifC1gVphaygAGQRpscMXnEZe30wbWecVHGvHqJO4in59BHdBS575hqHis vV4xN5FV/tEqa/YMhzzQwqgx24jn+D+qOcw4v/fvBQqnm/de2h3N3qbVv8ura2JF IMVZfOYGgjeBaUAvmyMrsSJLFXVKzz1P2u5YJ6UJqJvZM0TfUXzfilO29q1FEicR KRHeFS6YLI4Ih9389ur89eyuAuovyrgExQAiKYdIVl8On5iugEqNpQF2neCZVao3 pdAf5/S3TCtwEmTZUnCZccECAwEAAQ== -----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 340692866028224421838439431156558171064367 . . . . . . . . [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 2016-10-31 22:02:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-01-29 22:02:00 +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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 776599818163734477888812548043121169502897508879254831833395270546649462317391916640259795938231759605170823088776478096689535305034050445629274935180146286674890557815595178462528879255414819813222027476681941185485767710749954854685419249298160998597567915377856617945268831743131725437552168226798387157035562126023933765619053834245396100938271844311481313403988876762748342881073366500380461888984805976974356811229047949658071393091198113352178204433789146655507427677889149393704756938492769623279434808914858245232804793417234147450486723789964809457205330176415417385185877892616415565268980032484628173098037877350243289882047151842079084391834287146423652767570711346799937901429762450978677949830217175268741164553216805359413030202496425151317722100119605911736998139044606677483859007066821357365636342321664805570296673872945288360357540346291737053694158484141619805584368573129948383868802349381291906530163316554934876807641670171777347061420792468511983451598483537217919344562295138379720991628802955285463684159134879824272691565173390931229225575556972270605037335785926243411437873240253895799622846199086980625045888802869163346104017744208385483015400168285584649060174914050794846607705183091635110503084481 . . . . . . . . . . . . . . . . . . . . [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) 8cb5fd2fb0b2f42cac80486e60920d27eb8f3357 . . . . . . . . . . . . . . . . [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 (100 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 (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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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