www.one-earth-g.a.u-tokyo.ac.jp

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:13:c3:ed:85:7d:33:26:f7:4a:6d:22:0a:6f:36:ed:d1:77 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=www.one-earth-g.a.u-tokyo.ac.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:13:c3:ed:85:7d:33:26:f7:4a:6d:22:0a:6f:36:ed:d1:77
Serial Number (int): 268062655507791930537474706881406288384375
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 31:7d:cd:d6:04:2f:f4:05:8d:26:0a:e9:68:4b:9e:3f:a4:1c:ab:3a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 98:16:16:f5:bc:90:1e:9a:45:6c:5d:7e:27:85:d9:00:5b:a0:6d:d8
Fingerprint (sha256): 03:e3:4d:b5:d8:71:1b:a0:ea:7c:67:36:a0:35:14:8c:13:4d:cf:02:56:ba:da:03:af:02:b4:48:2d:f0:34:6b

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 www.one-earth-g.a.u-tokyo.ac.jp

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.one-earth-g.a.u-tokyo.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

www.one-earth-g.a.u-tokyo.ac.jp

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Certificate

The complete raw certificate details for www.one-earth-g.a.u-tokyo.ac.jp in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1Eg41HkXF4tjQ/LqVMf
EYy7PoYgvqjee6gFfmwUcACi6PGNZSLQtB6a1zp0vBawJm7X6t/MIhsz2PqCzI/h
IvriZYkxXfNsTd7NZ+KSR/XFyU1t144KWIp35ufr8YAlcA/oWJ2BkzRDxOaptRBd
8Y9LCovwkppVvASEayOXmoIRq3kGKZVaQnybL8nSnu1+QVy2kc9bfx5hQFsoxUq0
xM9ZDEYub7BUJcXt1S5iRwIQqHv2INfRY/ZlFWS7ejFxTmV6g96428mze2+qwnjP
nqWLMeXkz0E5UBieVYw0kK7W3okhy4ZPUxGD+T4AEW+newGWoKauV5OLXWqIs2K2
tQIDAQAB
-----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 268062655507791930537474706881406288384375
 . . . . . . . . [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 2019-08-11 02:11:22 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-09 02:11:22 +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.one-earth-g.a.u-tokyo.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 26171335066895507792040573557766175275747525564485808991872731531791942207646344803835118108465514649065342008057153390974605512171235861282190649589870547760432076537788676845433583021602028358789714089580549133035260869735674046545277582227803166294809213437185988306137895000836868550814277144884131513937592413377225182445885685648147816254573297684134991280229699200508541543276374586022166248189998429193773566732059784004096337581708153113278835632157743349399110665084288062648983165051755602484373000129409220137658428858750002156790688924362098500077827127017256168316996932461748422227872173774478145402549
 . . . . . . . . . . . . . . . . . . . . [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)
							317dcdd6042ff4058d260ae9684b9e3fa41cab3a
 . . . . . . . . . . . . . . . . [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 (35 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.one-earth-g.a.u-tokyo.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016c7ea8bafb0000040300473045022075608aaeaacfccdf224a4774f658584051066b116a710e56ff7374da36efa6d2022100dce6edb815183aa75b7f4cd36abe37b6c8f303df619712ee25628d780f43de3700770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016c7ea8bb1b0000040300483046022100bdd7ba1d05971ccbb4046512dea87e7dc9ffa2600b8a992e334b151c68195800022100e7844f97048647615df4a4e28fe7729dcc481a954f4071ba382807578245559d
 . . . . [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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