leo10.cse.kyutech.ac.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:7c:b8:af:8a:73:a3:be:6c:69:3f:95:2a:b3:5c:f9:0b:aa 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): 04:7c:b8:af:8a:73:a3:be:6c:69:3f:95:2a:b3:5c:f9:0b:aaSerial Number (int): 390889646636546464428937935914149621599146
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: dd:e4:ad:81:f5:21:ae:1c:04:27:0d:9a:91:fb:65:a9:ba:f0:d6:22
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 15:c3:75:34:06:2a:4a:14:af:5e:5b:4c:25:8e:3b:56:e1:49:41:3e
Fingerprint (sha256): 0e:09:c9:2a:ec:b7:5b:ed:94:cd:79:0c:59:b9:cd:18:92:ad:0a:a5:d5:4a:aa:17:85:02:00:27:98:10:2a:ce
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----- MIIFmDCCBICgAwIBAgISBHy4r4pzo75saT+VKrNc+QuqMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTExMzAxNzAwMTRaFw0y MDAyMjgxNzAwMTRaMCIxIDAeBgNVBAMTF2xlbzEwLmNzZS5reXV0ZWNoLmFjLmpw MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw5E0eLVmFYZlNIgk/pHA uQFRVg8nJJGwnqzxidYFdIFevJ2y08vfiHrAMKWYVYnXLT9mzbLNbzlnuKCkJBZD ATfW2rcZo/3emUL5pdt2W5uz8qZjDMfq/OBBEe2MsgBCDiQzhK6p3838O6QoI/oy J4a5w+bUyJgKR8L7cQUQuoWUpJgLH7jlNSBhTc0gKGUncLMPYDRfzIhgnuk/bmcc Cnrpsg1IxAuscDskhIGWexGh0jJebest+cgbI36/1zhurPlO+j64VKwu0eX57QBw b2FMnyyZ8v99LocMP36tmeh3xP2zhrXszqd5qq5Ag12FpfIY65kqaQ00w3nImE67 4QIDAQABo4ICnjCCApowDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUF BwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTd5K2B9SGuHAQn DZqR+2WpuvDWIjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggr BgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRz ZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRz ZW5jcnlwdC5vcmcvMFQGA1UdEQRNMEuCF2xlbzEwLmNzZS5reXV0ZWNoLmFjLmpw ghdsZW8xMS5jc2Uua3l1dGVjaC5hYy5qcIIXbGVvNTAuY3NlLmt5dXRlY2guYWMu anAwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQC BIH1BIHyAPAAdgDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAAAW69 eGx6AAAEAwBHMEUCIEPIsdKz/rpgOHlMqovXNCwRsSwXf8V1tfAHGk4Bv3uLAiEA 0pZSqKWrtnmLu1MFccUnKGH5PKbgK35wtb2rFDYeIS4AdgCyHgXMi6LNiiBOh2b5 K7mKJSBna9r6cOeySVMt74uQXgAAAW69eGxtAAAEAwBHMEUCIQD6KXkJvUA1e5sN TBud11WXeUbDAqEAZObaaZZpAZwQmQIgBuYdKCZG0vi/VVfVlY9mye13lHsiTGl6 4K0qsJsVUx0wDQYJKoZIhvcNAQELBQADggEBACq4IHM5eV4h6f5aHvTC1qfqHpd1 GLuI3qYc2ij2KU85R96nMt8tiBi/FYPgCNThf53K78WSNp/JDmIoX5+UMe/G5FSM ft9bSTzbhgOsQIFHJf74S8JIZZcxNpYjuaPxa2zzGbaDuPjCCEf18rum9h/q+VEk NjxyfDnunvRRz+Qe1Xiq+nk3YM2P5P9cj7iH2xVBZ8Raqvsgm5pxFaRRylIEGg2Q 2KUNMN2dJhUa597oM1vgETkHiV/+36ZYmQgJ5gIwCNaT9OWMZ/NWy1GOzItDlG4i 1GiJzwG44xRmSDlbw8XGCwA45O7+6kZKedfu3P8tQEN/pFuljYmTB1+p3V0= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw5E0eLVmFYZlNIgk/pHA uQFRVg8nJJGwnqzxidYFdIFevJ2y08vfiHrAMKWYVYnXLT9mzbLNbzlnuKCkJBZD ATfW2rcZo/3emUL5pdt2W5uz8qZjDMfq/OBBEe2MsgBCDiQzhK6p3838O6QoI/oy J4a5w+bUyJgKR8L7cQUQuoWUpJgLH7jlNSBhTc0gKGUncLMPYDRfzIhgnuk/bmcc Cnrpsg1IxAuscDskhIGWexGh0jJebest+cgbI36/1zhurPlO+j64VKwu0eX57QBw b2FMnyyZ8v99LocMP36tmeh3xP2zhrXszqd5qq5Ag12FpfIY65kqaQ00w3nImE67 4QIDAQAB -----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 390889646636546464428937935914149621599146 . . . . . . . . [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 2019-11-30 17:00:14 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-28 17:00:14 +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 24688072706232719307212109989574655803186940759007050061227194516487844266001217180946313651555835677828661069659510618593751769582205267881437445509414658015131759286751035017929083225334831510151056224781012790404651616543293890117540720568807913725649752483757167313112274599785156677849608605810115403212863260630500605857302570694405063500027078751226904120869622706295167550320225791640684868660172851788499890330849020054041408565021426701349456404269178907739139971872826420979436046684576209204455575692554270494959076051974292647373616188696037171645990897826683809942809399317203088204842319222327884037089 . . . . . . . . . . . . . . . . . . . . [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) dde4ad81f521ae1c04270d9a91fb65a9baf0d622 . . . . . . . . . . . . . . . . [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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016ebd786c7a0000040300473045022043c8b1d2b3feba6038794caa8bd7342c11b12c177fc575b5f0071a4e01bf7b8b022100d29652a8a5abb6798bbb530571c5272861f93ca6e02b7e70b5bdab14361e212e007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016ebd786c6d0000040300473045022100fa297909bd40357b9b0d4c1b9dd755977946c302a10064e6da699669019c1099022006e61d282646d2f8bf5557d5958f66c9ed77947b224c697ae0ad2ab09b15531d . . . . [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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