leo10.cse.kyutech.ac.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:6a:e5:48:38:29:a5:93:13:14:28:e0:be:a4:8b:37:49:c7 was issued on by Let's Encrypt.
With 3 subject alternative names this certificate can be used to secure multiple fqdn's. 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=leo10.cse.kyutech.ac.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:6a:e5:48:38:29:a5:93:13:14:28:e0:be:a4:8b:37:49:c7Serial Number (int): 297711556884423312605864863396882634197447
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 3b:18:e4:4f:8a:c5:d8:d3:7a:28:f9:86:a0:3f:fa:5d:e4:8e:52:44
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 2c:87:5b:a0:0c:01:4a:66:64:76:c3:23:42:ad:f5:65:8c:fa:13:cc
Fingerprint (sha256): 08:23:83:00:fc:c4:a0:ac:ec:a0:08:15:d2:45:a2:1d:8f:13:bf:06:02:73:b3:ea:4c:dc:bf:40:4a:6c:00:7f
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate leo10.cse.kyutech.ac.jp
3
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for leo10.cse.kyutech.ac.jp
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
leo10.cse.kyutech.ac.jp
leo11.cse.kyutech.ac.jp
leo50.cse.kyutech.ac.jp
leo11.cse.kyutech.ac.jp
leo50.cse.kyutech.ac.jp
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Certificate
The complete raw certificate details for leo10.cse.kyutech.ac.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFlzCCBH+gAwIBAgISA2rlSDgppZMTFCjgvqSLN0nHMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAxMzExNzAwMTFaFw0x OTA1MDExNzAwMTFaMCIxIDAeBgNVBAMTF2xlbzEwLmNzZS5reXV0ZWNoLmFjLmpw MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtFq0uBTmFIvqIiuWeZrj 5y2T30h5EDxTtLvCfSeFOfbX+jJ3Y3O8d8uIEd+4Z/+5ZSsh55E9koiYJFzolJc2 m3wRKEyf9dSilLfdV9FhMlyLajpDh5LRmlcpxr3axQwRd2f0vMJXgImhitXf7kBn Rn1tiDIDzaFcnnXzQh7acTre2JGuHBqJEi6Qu0kqqFbA2uYrcoSu3pGEmmIxFYh/ F+Q6MGeb9mvag/CQfnnxW1GP6DCfnKkyvC3zFNpE5oAVXyUFIe9fCLAGIwN6rhcP PS781yV5RDFziWFzTY1tjm/zp83aRAt1L6qcQGhDt4VVHVIyZ5mMatR89sKtstIg ewIDAQABo4ICnTCCApkwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUF BwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQ7GORPisXY03oo +YagP/pd5I5SRDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggr BgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRz ZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRz ZW5jcnlwdC5vcmcvMFQGA1UdEQRNMEuCF2xlbzEwLmNzZS5reXV0ZWNoLmFjLmpw ghdsZW8xMS5jc2Uua3l1dGVjaC5hYy5qcIIXbGVvNTAuY3NlLmt5dXRlY2guYWMu anAwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQC BIH0BIHxAO8AdQB0ftqDMa0zEJEhnM4lT0Jwwr/9XkIgCMY3NXnmEHvMVgAAAWil EXQUAAAEAwBGMEQCIDHh8+3pYKBSA0izgsDhLInWVOYpT6md4pftEGjWWAOaAiB/ KU+c2IcjzmdAfK18KOrgH3JKFfmalBMWad6+mCDqYwB2AGPy283oO8wszwtyhCdX azOkjWF3j711pjixx2hUS9iNAAABaKURdhAAAAQDAEcwRQIgKchb+lf/ROiIYwN+ /muEAO05YoYKjgBKEuHsjViaUQACIQDcNmGScHsJqrUPajA9J9iwe4hKPtOMPghC jFWsRKJzQzANBgkqhkiG9w0BAQsFAAOCAQEAdMnvnsLMkZpk16a9f+Gwp/Kk13k3 5wL8XEVH0CPNXyZhtuWQCfR4MOetETS80bODWehuS/c3+hqpmdTwqCtkhriV1ykM LMk1WUfZGCIOOHhaeHX1y/ZlMybmbMGWZGRiIXXKBPcbmpSq0YLg7NQb4dh6xDV+ WKx1NRtoi3CrkSSveezufGRgKiv7YYs0yuSSrC29Ly/Kl5i+REUPMlS4iFk7AEKs PtBsgtjDWOcMcTHXVNlj50nf/iV70Q8JxYYh+qNJZGeKebNwBNraCn7MptvtRcHm AjyqTCMtQhV4wITzkj5sDd/dp08kW9cvKrvw+PK5RE4Uu3Cy6jgzJsJnkA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtFq0uBTmFIvqIiuWeZrj 5y2T30h5EDxTtLvCfSeFOfbX+jJ3Y3O8d8uIEd+4Z/+5ZSsh55E9koiYJFzolJc2 m3wRKEyf9dSilLfdV9FhMlyLajpDh5LRmlcpxr3axQwRd2f0vMJXgImhitXf7kBn Rn1tiDIDzaFcnnXzQh7acTre2JGuHBqJEi6Qu0kqqFbA2uYrcoSu3pGEmmIxFYh/ F+Q6MGeb9mvag/CQfnnxW1GP6DCfnKkyvC3zFNpE5oAVXyUFIe9fCLAGIwN6rhcP PS781yV5RDFziWFzTY1tjm/zp83aRAt1L6qcQGhDt4VVHVIyZ5mMatR89sKtstIg ewIDAQAB -----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 297711556884423312605864863396882634197447 . . . . . . . . [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 2019-01-31 17:00:11 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-01 17:00:11 +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 'leo10.cse.kyutech.ac.jp' . . . . . . . . [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 22767623656942152080900982709745070189042559000365845775982671255306991792996008268050027777905475017782340395775064600043153645149511759299623351236297418170379725938493110146827688999590708139033301675121075805110246050927804248095358348664746986735357163347955021223432862773815875111683439293732918046746271397645212754310079428411534799963648024959887544697300688163316165455939013170076765153505848051587278725397511045490258623541577721461567531439238625073237271157680781529950338416221351623960355531783130866582227247173453942442899889593480977703331116874922185996157817111778340905829761669424599572553851 . . . . . . . . . . . . . . . . . . . . [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) 3b18e44f8ac5d8d37a28f986a03ffa5de48e5244 . . . . . . . . . . . . . . . . [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 (77 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'leo10.cse.kyutech.ac.jp' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'leo11.cse.kyutech.ac.jp' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'leo50.cse.kyutech.ac.jp' . . . . . . . . . . . . . . . . [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) 00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000168a51174140000040300463044022031e1f3ede960a0520348b382c0e12c89d654e6294fa99de297ed1068d658039a02207f294f9cd88723ce67407cad7c28eae01f724a15f99a94131669debe9820ea6300760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000168a51176100000040300473045022029c85bfa57ff44e88863037efe6b8400ed3962860a8e004a12e1ec8d589a5100022100dc366192707b09aab50f6a303d27d8b07b884a3ed38c3e08428c55ac44a27343 . . . . [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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