DV SSL/TLS Certificate for *.ycci-conference.jp

Certificate is witin its validity period

Issued by Amazon (Amazon RSA 2048 M03)

About the *.ycci-conference.jp DV SSL/TLS Certificate

This certificate with serial number 0d:2b:a2:3f:ed:49:d1:b7:c8:94:bf:e2:fe:4e:4f:a2 for *.ycci-conference.jp was issued on by Amazon.

With 2 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for *.ycci-conference.jp provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Amazon

Organization: Amazon
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 0d:2b:a2:3f:ed:49:d1:b7:c8:94:bf:e2:fe:4e:4f:a2
Serial Number (int): 17506523525288123182331373521791242146
Serial Number Length: 124 bits, 16 octets

Subject Key Identifier: 48:b2:76:fa:ef:a3:84:a1:40:0b:06:37:f2:d8:e5:b7:b8:fa:35:62
Authority Key Identifier: 55:d9:18:5f:d2:1c:cc:01:e1:58:b4:be:ab:d9:55:42:01:d7:2e:02

Fingerprint (SHA-1): d3:30:38:c9:fe:b1:0a:ea:e8:a8:c3:6c:8c:59:32:38:d6:79:c5:0d
Fingerprint (SHA-256): 17:37:10:91:c0:2c:e5:64:7b:ea:3c:9a:37:db:26:35:c4:a0:4c:65:21:2e:50:91:00:42:78:f6:eb:ee:bb:76

Issuing Certificate URL: http://crt.r2m03.amazontrust.com/r2m03.cer

Revocation Information

OCSP Server: http://ocsp.r2m03.amazontrust.com
CRL Distribution Point: http://crl.r2m03.amazontrust.com/r2m03.crl

Check the revocation status for certificate *.ycci-conference.jp
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for *.ycci-conference.jp

Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Key Encipherment
Digital Signature
Extended Key Usages
Server Authentication
Client Authentication
Extensions
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for *.ycci-conference.jp in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwmq7+Mn857XCdqBgnx9P
L25KDK44+LPT75AaGnOEH3K9RW3mrdPL/N99qgzhXi+9CdgjaZU6db56TbuFTaus
EMi7lYteV06KLFEBIeIFCXMNv5kaTODp6gYShrC4UzinOJwjo+AroFWatpDGwIKc
ZnZsK+b/4OrQzqFGH/T25kJxCVN4mtp40CH5/ohAo/heHqCHOMYdwYpXDd1g8DTN
Ld93/DbFsUvZChyBkHF8djG8u43bKz+vLa8Jmt0qDUia0Tqa/C4v9q57ciXg/Mi6
qaeYCNunB7PpilYzYKIvBjqUmJ5HsIwSwl8vSHr2cMuvmH8S9HT4J1f3Yjx+ZX6p
MQIDAQAB
-----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 17506523525288123182331373521791242146
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Amazon'
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Amazon RSA 2048 M03'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-10-16 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-11-15 23:59:59 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String '*.ycci-conference.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
 . . . . . . . . . . . . . . . . [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 24542863791116536801698176720590878805446523618332882866176587144067867888917318396871614655914863008886499243831485896712950940446143552792926370506746151401569429323369383691702542007762396969133577218635665897744559524495181159120163836367075551119831482919703719077758865011106961674015200842502651248248168945519427560621504238718090851430719831443103311271356873598111871449897144603131276549844752852277993100341690946468207805817960696901871603603545187159739359546575808282287942573388094931061993590167825153003093982955971616243556151891969418330942726397189463618064483055942206638142228036505110598035761
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 55d9185fd21ccc01e158b4beabd9554201d72e02
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							48b276faefa384a1400b0637f2d8e5b7b8fa3562
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (44 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.ycci-conference.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ycci-conference.jp'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (52 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crl.r2m03.amazontrust.com/r2m03.crl'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (105 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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.r2m03.amazontrust.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crt.r2m03.amazontrust.com/r2m03.cer'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (368 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (364 bytes)
							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
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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