itonavi.f.ait.kyushu-u.ac.jp

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e2:74:9b:de:0e:e0:8b:4d:ad:5e:41:9d:7a:af:ac:50:ef 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=itonavi.f.ait.kyushu-u.ac.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e2:74:9b:de:0e:e0:8b:4d:ad:5e:41:9d:7a:af:ac:50:ef
Serial Number (int): 338395672476810575157713363993127931367663
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 00:e6:53:f1:ba:c5:25:72:9f:7f:e0:96:0b:e6:78:cc:2e:7a:f1:70
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 24:4c:c4:22:2b:dc:d8:d8:e2:e4:ae:1a:6e:36:06:a4:8f:54:8a:4f
Fingerprint (sha256): 0c:23:60:0b:4d:66:38:c1:7e:95:02:6d:b1:ea:4b:af:e4:be:bd:f2:77:82:36:5f:72:0a:ae:9e:7c:cd:6a:2a

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 itonavi.f.ait.kyushu-u.ac.jp

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for itonavi.f.ait.kyushu-u.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

itonavi.f.ait.kyushu-u.ac.jp

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Certificate

The complete raw certificate details for itonavi.f.ait.kyushu-u.ac.jp in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0gZYsud/fGyk/oTzZCLp
ndQoC6h+YE1Vhl4S+5CkifI/sit8fpVpejQmaxJFB7Bv2IiPL2VgCjb1TpZDlOoI
iZyS+DDBh8CYhYFd5dOPXDdexB7f0ZXJhVTsffe1HieVofP0XDsc3/fZdl3VDk1T
zzAPmyLYJB31mEfTTsmywmiKy7K73PkCvkxpAwPH8PK9SSgKr1dUyiVIPHFwV2+/
EYsICQMjQqgk0NDYgOyZ0Q4DriBfeUmFqJfVqxyxGf2ALaNXL05ccjpuil/TcgtF
Hxt3RlGBNQphHmlQMfCV14hl+2EUFj2mZiOEjWBMkGUJDoTfrrF5Ir5vIDP3vGZg
DQIDAQAB
-----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 338395672476810575157713363993127931367663
 . . . . . . . . [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 2019-08-17 14:59:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-15 14:59:11 +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 'itonavi.f.ait.kyushu-u.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 26513173608733178635288825597437275364895559223289020392923139828146642383975274538213794809541512867647519944451042530060645185542214349129836477718921560593892543869501284844808751715254285107774344400980102366885122138886576116828788206512604086750625190161749849316864829390155490960865598257976377181548126114033109469790157393375010037143686052425360410395172796373751824695356292469650560667467397603342914717810270694594347803640732811280496808463535035551763493377369639154882032261755703276456458769278011592723691218494424555755306980879564292995212477192178140783798194001831187863827348530097005722492941
 . . . . . . . . . . . . . . . . . . . . [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)
							00e653f1bac525729f7fe0960be678cc2e7af170
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'itonavi.f.ait.kyushu-u.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)
							00f1007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016ca04dd7510000040300483046022100eac56e190a98f45ea3c20cc47fa3645afce8c84415c3cf108b89eced4f98e8ca022100ea147b58fbc6b6a958275398d9537f7ce5e1da6e716145e591b690623bbe6b02007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016ca04dd743000004030047304502206fb704988a79db9c89f865bf5235b00a047ca4818a755cbe2bf265b03828e25f0221009d0b9823f94e136d091821da381e7f2cb064b44103635f9e13183e7407c0f983
 . . . . [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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