rekishi.irides.tohoku.ac.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:92:8b:e9:13:b2:6f:27:7c:73:be:81:8a:a3:87:bb:4f:2b was issued on by Let's Encrypt.
With 2 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=rekishi.irides.tohoku.ac.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:92:8b:e9:13:b2:6f:27:7c:73:be:81:8a:a3:87:bb:4f:2bSerial Number (int): 311204056261822693495521939249361451700011
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: c2:4f:29:77:8e:b4:62:47:4b:47:1b:9b:01:76:3e:0d:d1:0c:31:3d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 90:79:f5:b5:ee:ea:ec:70:95:e4:89:4c:26:92:36:0d:85:96:52:bb
Fingerprint (sha256): 0c:51:1c:91:fb:04:23:8d:a5:f3:c9:0a:12:f4:a6:e6:01:86:78:26:58:0f:21:ff:33:18:ee:94:c3:9b:24:17
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate rekishi.irides.tohoku.ac.jp
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for rekishi.irides.tohoku.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
rekishi.irides.tohoku.ac.jp
www.rekishi.irides.tohoku.ac.jp
www.rekishi.irides.tohoku.ac.jp
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Certificate
The complete raw certificate details for rekishi.irides.tohoku.ac.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFjzCCBHegAwIBAgISA5KL6ROybyd8c76BiqOHu08rMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA1MTMwMzU1MTFaFw0x OTA4MTEwMzU1MTFaMCYxJDAiBgNVBAMTG3Jla2lzaGkuaXJpZGVzLnRvaG9rdS5h Yy5qcDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMPVCO8JY4peI1ho aG4IUABu1Y1XdaxuqykIg74ssfHgvm0W9IkEMjEb1ydFFw7t59Ps/tnon/J7paDL M+SpAiLwXsifct/mqK3NLjjkXv9iYOdqJyWQz0q7wgEf3IPRbWSMl2hjVHsEHLk/ rslpMO0gO+xOzg7Nh0HquETJvZHxjPA5TX2tKhr8yCRu0diHAG394jhGnzmeq2Ku FPSQcSUiEY4zOgyauMoDd2Wh4WlEbXgj/vUlwbBCwog6BTU6GMO9pVoYrIk31OIi /tLdqBfZzup4cwx8spXrFuHULMY5bxxuocsCxPCICB4Qm6n0XVBki8CGkYroLvrF G01sKZECAwEAAaOCApEwggKNMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUwk8pd460 YkdLRxubAXY+DdEMMT0wHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu bGV0c2VuY3J5cHQub3JnLzBHBgNVHREEQDA+ghtyZWtpc2hpLmlyaWRlcy50b2hv a3UuYWMuanCCH3d3dy5yZWtpc2hpLmlyaWRlcy50b2hva3UuYWMuanAwTAYDVR0g BEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0 cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAA dgDiaUuuJujpQAnohhu2O4PUPuf+dIj7pI8okwGd3fHb/gAAAWqvi2yZAAAEAwBH MEUCICeUHUBmlLjnTe235c5knKFz6Ck4hJcSWGvG+EI8olGtAiEAimRe10H0EfJA 7mD6ERKtuz3SsPSO7eAjH96Ink9PMNMAdgApPFGWVMg5ZbqqUPxYB9S3b79Yeily 3KTDDPTlRUf0eAAAAWqvi25/AAAEAwBHMEUCIQCtlA7XceCBBpWWjIr/tHu4AJt2 aF860NdUuIq+23w7RAIgeTn5VrHNeWpZg5Jta5cyhz1g2BfEK73UCoYodVvFP3gw DQYJKoZIhvcNAQELBQADggEBADZidyqXam22M9rv9OROjXts/a/7owYYaTeePLWL Pr6jsnB2UDKU0qy6llwrBKXCG0dGGtJeoS1szysl5pInToBTbGqY4mvWbfv8PAtD ljFRn8CzRgkFuzN8a3JgL5WMxrn0l7Imdp1n1b6E4UkTbPRkyxBNRXgyvirE824N M4tBgrWeLY5u76B1JUq8daOq1JmCvrjR935d2qc4p03LH9a2yH9yEP+W6di1Elib psyCRzRcAs18WSkBYvrpGON25fKoQ6OY7kr/vxI5EXWeg7qFR71KNdjzQJO/YOG4 X4T3E5UyEiz8REqSKrFVEKwrlQWOWPrTwDleJiM0xDDBDWM= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw9UI7wljil4jWGhobghQ AG7VjVd1rG6rKQiDviyx8eC+bRb0iQQyMRvXJ0UXDu3n0+z+2eif8nuloMsz5KkC IvBeyJ9y3+aorc0uOORe/2Jg52onJZDPSrvCAR/cg9FtZIyXaGNUewQcuT+uyWkw 7SA77E7ODs2HQeq4RMm9kfGM8DlNfa0qGvzIJG7R2IcAbf3iOEafOZ6rYq4U9JBx JSIRjjM6DJq4ygN3ZaHhaURteCP+9SXBsELCiDoFNToYw72lWhisiTfU4iL+0t2o F9nO6nhzDHyylesW4dQsxjlvHG6hywLE8IgIHhCbqfRdUGSLwIaRiugu+sUbTWwp kQIDAQAB -----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 311204056261822693495521939249361451700011 . . . . . . . . [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 2019-05-13 03:55:11 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-11 03:55:11 +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 'rekishi.irides.tohoku.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 24721520891614565412190274425964844520490239828922021844006437879809219480227044025853705061559531201852202160129671452024868244520277669128611900957412218723597559826412095874440844978956037574132836682364172820446152215797705471822153850731916829568623563185719193334574002032851624268733384483082442037407259159365257117750921177802352121394793698615130388769841603357178798752716671671390863397425464787278300623530451339136165017368331413848992132882804344263474356927799997391932935722119954277412617368552581828220656152447327508585723259479429608763542273757576937515559605770394099123312267265795871409449361 . . . . . . . . . . . . . . . . . . . . [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) c24f29778eb462474b471b9b01763e0dd10c313d . . . . . . . . . . . . . . . . [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 (64 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rekishi.irides.tohoku.ac.jp' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.rekishi.irides.tohoku.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) 00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016aaf8b6c990000040300473045022027941d406694b8e74dedb7e5ce649ca173e82938849712586bc6f8423ca251ad0221008a645ed741f411f240ee60fa1112adbb3dd2b0f48eede0231fde889e4f4f30d3007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016aaf8b6e7f0000040300473045022100ad940ed771e0810695968c8affb47bb8009b76685f3ad0d754b88abedb7c3b4402207939f956b1cd796a5983926d6b9732873d60d817c42bbdd40a8628755bc53f78 . . . . [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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