www.chatwork.com

Issued by EssentialSSL CA

About this certificate


This digital certificate with serial number fe:02:c9:a4:06:08:c0:b6:50:56:41:99:85:b4:4c:9f was issued on by COMODO CA Limited .

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. While the 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.

Cerificate errors/warnings *beta

  • ERROR: Certificate contains a key usage different from ServerAuth, ClientAuth or ServerGatedCrypto

www.chatwork.com

Organization unit: Domain Control Validated
Organization unit: Hosted by Comodo Japan Inc
Organization unit: EssentialSSL

COMODO CA Limited

Organization: COMODO CA Limited

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): fe:02:c9:a4:06:08:c0:b6:50:56:41:99:85:b4:4c:9f
Serial Number (int): 337638385282702179220876639374008405151
Serial Number lenght: 128 bits, 16 octets

SubjectKeyId: 08:ab:4d:ce:33:17:fe:8c:24:f8:3a:e2:04:bf:79:d3:e9:43:eb:d3
AuthorityKeyId: da:cb:ea:ad:5b:08:5d:cc:ff:fc:26:54:ce:49:e5:55:c6:38:f4:f8

Fingerprint (sha1): e6:bc:0c:96:02:8e:b2:fc:87:c0:60:0f:89:d5:0b:f9:32:5b:b7:c3
Fingerprint (sha256): 99:4f:b5:e7:39:6b:1e:7d:3b:f2:5a:9a:d0:6b:a3:5b:32:16:73:24:79:91:c1:7e:9a:51:69:52:31:75:a5:fb

Issuing Certificate URL: http://crt.comodoca.com/EssentialSSLCA_2.crt

Revocation information

OCSP Server: http://ocsp.comodoca.com
CRL Distribution Point: http://crl.comodoca.com/EssentialSSLCA.crl

Check the revocation status for the current certificate on www.chatwork.com
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA1 with RSA



Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication
Microsoft Server-Gated Cryptography
Netscape Server-Gated Cryptography

Extensions

9 extensions
No unhandled critical extensions



CA Certificate

This is not a CA certificate

Subject Alternative Names

www.chatwork.com
chatwork.com

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFMDCCBBigAwIBAgIRAP4CyaQGCMC2UFZBmYW0TJ8wDQYJKoZIhvcNAQEFBQAw cjELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G A1UEBxMHU2FsZm9yZDEaMBgGA1UEChMRQ09NT0RPIENBIExpbWl0ZWQxGDAWBgNV BAMTD0Vzc2VudGlhbFNTTCBDQTAeFw0xMjA3MTkwMDAwMDBaFw0xMzExMTQyMzU5 NTlaMHoxITAfBgNVBAsTGERvbWFpbiBDb250cm9sIFZhbGlkYXRlZDEjMCEGA1UE CxMaSG9zdGVkIGJ5IENvbW9kbyBKYXBhbiBJbmMxFTATBgNVBAsTDEVzc2VudGlh bFNTTDEZMBcGA1UEAxMQd3d3LmNoYXR3b3JrLmNvbTCCASIwDQYJKoZIhvcNAQEB BQADggEPADCCAQoCggEBALdGMhhqYxqaHIzYcCSCELgmecnB21sBKRxPrLeBMwo/ I0jVkhPDyzo0zt7oXezYvCsYNRjQGWL1cWZGckVpro51YQEG9rZG0iIvDaA9AxYK Ygp7tT0x4r/TfYVI8jWIkNHgWj+eV6D+x0LrsB2l5QcODikTEjz5TjBjhwS+FiPZ fZ4zRKRfyy0iTzlDbi/tEeRpFilq55+QSVOgOcEtk83e4/sGxqQScIbotsdBpDwV Sze0mnCb6n4nMWkicsIO5VPaZYNMJIPJyxVxwhMc7E5Xy/B4KQ6snL9iK6MOBI+V puQ+RgC4ZbS7SIiRAMkHIW6b2kHoFNMUZpxy3jgHB3kCAwEAAaOCAbcwggGzMB8G A1UdIwQYMBaAFNrL6q1bCF3M//wmVM5J5VXGOPT4MB0GA1UdDgQWBBQIq03OMxf+ jCT4OuIEv3nT6UPr0zAOBgNVHQ8BAf8EBAMCBaAwDAYDVR0TAQH/BAIwADA0BgNV HSUELTArBggrBgEFBQcDAQYIKwYBBQUHAwIGCisGAQQBgjcKAwMGCWCGSAGG+EIE ATBFBgNVHSAEPjA8MDoGCysGAQQBsjEBAgIHMCswKQYIKwYBBQUHAgEWHWh0dHBz Oi8vc2VjdXJlLmNvbW9kby5jb20vQ1BTMDsGA1UdHwQ0MDIwMKAuoCyGKmh0dHA6 Ly9jcmwuY29tb2RvY2EuY29tL0Vzc2VudGlhbFNTTENBLmNybDBuBggrBgEFBQcB AQRiMGAwOAYIKwYBBQUHMAKGLGh0dHA6Ly9jcnQuY29tb2RvY2EuY29tL0Vzc2Vu dGlhbFNTTENBXzIuY3J0MCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5jb21vZG9j YS5jb20wKQYDVR0RBCIwIIIQd3d3LmNoYXR3b3JrLmNvbYIMY2hhdHdvcmsuY29t MA0GCSqGSIb3DQEBBQUAA4IBAQAoy7e7UyevILEzuN9Lh6FsFRuyu5ZkDaZnWGuw WdXRhnpi1Mup/ZBTVDfd9lZh87Flsesue3djwwfYrI4D4lNggkXzw3XUKVSOPvat jblCFRfKsuzJmLDsHloocem3i7+rRRysP1biNayezr6W+g91uAfqj02jirENc6L4 R+cMOzU7otOTFmBH+7EAXaRDtZjF8PBH9uOsUc2FLRl/J0WVTlh3UXivBFIh4bik Qr+wxqumL6k6RlzxfmvTkjGnm+5hQ6PlkdGqAxvLQBldvxQ/MlXrR060lQplC6b6 50dmu5sRzTrOkG2e+0NpFDvg+W03s+J7Hk3evDeXjKH7+Ib/ -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt0YyGGpjGpocjNhwJIIQ uCZ5ycHbWwEpHE+st4EzCj8jSNWSE8PLOjTO3uhd7Ni8Kxg1GNAZYvVxZkZyRWmu jnVhAQb2tkbSIi8NoD0DFgpiCnu1PTHiv9N9hUjyNYiQ0eBaP55XoP7HQuuwHaXl Bw4OKRMSPPlOMGOHBL4WI9l9njNEpF/LLSJPOUNuL+0R5GkWKWrnn5BJU6A5wS2T zd7j+wbGpBJwhui2x0GkPBVLN7SacJvqficxaSJywg7lU9plg0wkg8nLFXHCExzs TlfL8HgpDqycv2Irow4Ej5Wm5D5GALhltLtIiJEAyQchbpvaQegU0xRmnHLeOAcH eQIDAQAB -----END PUBLIC KEY-----

ASN1 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 337638385282702179220876639374008405151 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . . . . . [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 'GB' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8 (stateOrProvinceName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Greater Manchester' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Salford' . . . . . . . . . . . . [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 'COMODO CA Limited' . . . . . . . . . . . . [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 'EssentialSSL CA' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2012-07-19 00:00:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-11-14 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 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Domain Control Validated' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Hosted by Comodo Japan Inc' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'EssentialSSL' . . . . . . . . . . . . [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.chatwork.com' . . . . . . . . [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 23136224591198528429839468705113824354532583433199163568436125588233975370083550455174124375109210019179955168381808159277993773878368410044369966561581905425420253890279359864678724774024231768513686296154866634783364934823450637368243785096882939140468525366428691029433942560730739422370147051858875733658116230321318656859169149716606662963823513815414864616031672055921549281122257986092650773365592158367411119992423703224982630483225193449694333396893917827052817755132340414467483247579293225534235273551032582918966635686967347062432603605242937910467978767728648775599827620736217123485136754645276727641977 . . . . . . . . . . . . . . . . . . . . [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 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName dacbeaad5b085dccfffc2654ce49e555c638f4f8 . . . . . . . . . . . . . . . . [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) 08ab4dce3317fe8c24f83ae204bf79d3e943ebd3 . . . . . . . . . . . . . . . . [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 2.5.29.19 (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 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (45 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:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.311.10.3.3 (serverGatedCrypto) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.840.1.113730.4.1 (serverGatedCrypto) . . . . . . . . . . . . . . . . [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 (62 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.6449.1.2.2.7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://secure.comodo.com/CPS' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [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.comodoca.com/EssentialSSLCA.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 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (98 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crt.comodoca.com/EssentialSSLCA_2.crt' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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.comodoca.com' . . . . . . . . . . . . . . . . [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 (34 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.chatwork.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'chatwork.com' . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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