www.k-12.at
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:91:63:31:93:4a:be:ab:83:e9:94:4f:68:4b:f1:20:86:8d was issued on by Let's Encrypt.
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We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=www.k-12.at
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:91:63:31:93:4a:be:ab:83:e9:94:4f:68:4b:f1:20:86:8dSerial Number (int): 310809651980381697284003401945521036756621
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 5c:0b:04:1e:55:29:a7:40:69:43:48:96:81:e5:4b:8a:5a:91:32:2f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 35:cf:f1:72:ad:03:b0:44:3c:88:36:5e:95:62:a6:5f:26:60:10:e1
Fingerprint (sha256): 00:18:ca:c4:d6:ba:a3:94:cb:4e:1c:79:c0:8a:a4:88:a7:b2:a1:d2:33:26:3b:c0:5e:e2:5e:5a:2d:c6:fc:ab
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.k-12.at
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.k-12.at
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
www.k-12.at
Other certificates including the domain name k-12.at
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.k-12.at in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGATCCBOmgAwIBAgISA5FjMZNKvquD6ZRPaEvxIIaNMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODA1MDUyMjExMDJaFw0x ODA4MDMyMjExMDJaMBYxFDASBgNVBAMTC3d3dy5rLTEyLmF0MIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2gxadqTHeYbWgCYnojR03euA4bxSc9TU3DLj 0isppYN8B+RFtySaeZO3yb5c5lwkcDIxuk/XH9xFyBmbRpcT2WK4Bnmj9es+cceE wCoCZyAcCJOtn40eaqOGJaKKs+08f6LN6aR99lUOlN/VefZQxfvvr3sdytZ8an8E 7E3uIIJrorIodurWKwhcR3tLs9eCD+QPZuB2fycRG6hrh+NcBXhjohG2qT6lYy8o 1FuvG20HF3V5FurcLCBvzJallQwLB5CpMF64BPRc8G3IhYYEcH77xjHXtswG3D1I Sw3tZunZDiUuiUzfUgJ4Wq94V1MdpUlv2EyrdApjmDF3JguLeQIDAQABo4IDEzCC Aw8wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcD AjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRcCwQeVSmnQGlDSJaB5UuKWpEyLzAf BgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRjMGEw LgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5vcmcw LwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcv MBYGA1UdEQQPMA2CC3d3dy5rLTEyLmF0MIH+BgNVHSAEgfYwgfMwCAYGZ4EMAQIB MIHmBgsrBgEEAYLfEwEBATCB1jAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRz ZW5jcnlwdC5vcmcwgasGCCsGAQUFBwICMIGeDIGbVGhpcyBDZXJ0aWZpY2F0ZSBt YXkgb25seSBiZSByZWxpZWQgdXBvbiBieSBSZWx5aW5nIFBhcnRpZXMgYW5kIG9u bHkgaW4gYWNjb3JkYW5jZSB3aXRoIHRoZSBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91 bmQgYXQgaHR0cHM6Ly9sZXRzZW5jcnlwdC5vcmcvcmVwb3NpdG9yeS8wggEEBgor BgEEAdZ5AgQCBIH1BIHyAPAAdwApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTDDPTl RUf0eAAAAWMykqp4AAAEAwBIMEYCIQD8JDD9GgHnviWqEqFhOhcXuA5Vs8Q3lW58 9Cr8GqvYXgIhANFBSCIw7fuqFd+LbkAfJvmycYk3ZRonup7DdVfF3Hb4AHUA23Sv 7ssp7LH+yj5xbSzluaq7NveEcYPHXZ1PN7Yfv2QAAAFjMpKrOgAABAMARjBEAiAc Ddm/6HNOUWPDfy7KKQR+J2Xf85MSrhfdT8kfrCvQbwIgNWH2eAwyqHTBndfk4pI/ AmPZXscagRfs5HtlFDXXlsMwDQYJKoZIhvcNAQELBQADggEBACc7diMeF+0cbjqm jWBsQGIlTptmQvxU3O977MObMZ7s7YaXPPZCmBr+VM+DNKNdhCKYDT3/yqsJyDv/ s6E/90Fxb6S24TCJfgAeLrlg5YVGsYGQzwyQT9O9lqereVx4l33L7B95/ofjJcE0 RDDCF9BYxAajvB2eq24ux7zfodPT36tRnTqdPPhOBaylGlRAq1Oxz8VwzQgJcyaS VUvuNvL1B2Jjzz4Joj+ec2QhRXHPLCCHBzXaUsKLAdwBpAbAkmC1pCKw8rRrFkea hrsU9StINg2zritiHV9q7IilXGREeTFZLvjCh4JqVOjiNRm8cBByvPr0PHmcirkQ qdQ926c= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2gxadqTHeYbWgCYnojR0 3euA4bxSc9TU3DLj0isppYN8B+RFtySaeZO3yb5c5lwkcDIxuk/XH9xFyBmbRpcT 2WK4Bnmj9es+cceEwCoCZyAcCJOtn40eaqOGJaKKs+08f6LN6aR99lUOlN/VefZQ xfvvr3sdytZ8an8E7E3uIIJrorIodurWKwhcR3tLs9eCD+QPZuB2fycRG6hrh+Nc BXhjohG2qT6lYy8o1FuvG20HF3V5FurcLCBvzJallQwLB5CpMF64BPRc8G3IhYYE cH77xjHXtswG3D1ISw3tZunZDiUuiUzfUgJ4Wq94V1MdpUlv2EyrdApjmDF3JguL eQIDAQAB -----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 310809651980381697284003401945521036756621 . . . . . . . . [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 2018-05-05 22:11:02 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-08-03 22:11:02 +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.k-12.at' . . . . . . . . [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 27526042157797255781598117810785901834166159112281013589429024960845234658102489558136106942381371275506428665132138831700695243214280915618870701444112616156436244977518082147967462755674247892216076140521765373193332305522130055094659675727558413452420367425022040440988650456814727526330023082624346455833142839492645398499790006198105280858512394703691497629836484023708304447623362828343372744705663696479426655851032887324100401521767552810436695223527213576128289193938404519377312072853247283734658747928376987324034639724240628668680054112361804990363753809498338575738928219878544439408843635713032508377977 . . . . . . . . . . . . . . . . . . . . [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) 5c0b041e5529a7406943489681e54b8a5a91322f . . . . . . . . . . . . . . . . [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 (15 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.k-12.at' . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001633292aa780000040300483046022100fc2430fd1a01e7be25aa12a1613a1717b80e55b3c437956e7cf42afc1aabd85e022100d141482230edfbaa15df8b6e401f26f9b2718937651a27ba9ec37557c5dc76f8007500db74afeecb29ecb1feca3e716d2ce5b9aabb36f7847183c75d9d4f37b61fbf64000001633292ab3a000004030046304402201c0dd9bfe8734e5163c37f2eca29047e2765dff39312ae17dd4fc91fac2bd06f02203561f6780c32a874c19dd7e4e2923f0263d95ec71a8117ece47b651435d796c3 . . . . [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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