dywang.csie.cyut.edu.tw
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:bb:49:2a:1d:16:c0:78:cc:cc:56:7d:87:0e:1a:35:34:98 was issued on by Let's Encrypt.
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- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=dywang.csie.cyut.edu.tw
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:bb:49:2a:1d:16:c0:78:cc:cc:56:7d:87:0e:1a:35:34:98Serial Number (int): 325066912719649055170333566606207672988824
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 62:bc:fc:8e:43:0c:a9:16:59:5e:75:54:f5:64:e1:8e:a1:3b:c7:46
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): d8:fc:f6:d8:b4:79:b8:3b:f9:0a:38:64:e4:eb:b1:66:84:23:3a:cc
Fingerprint (sha256): 21:91:20:6b:86:f3:94:69:65:d1:15:3f:9c:a8:a0:df:88:05:a2:68:5e:cb:cc:c2:5b:44:6b:92:3d:16:1b:5b
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate dywang.csie.cyut.edu.tw
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for dywang.csie.cyut.edu.tw
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
dywang.csie.cyut.edu.tw
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Certificate
The complete raw certificate details for dywang.csie.cyut.edu.tw in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFZzCCBE+gAwIBAgISA7tJKh0WwHjMzFZ9hw4aNTSYMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAxMzEwMTAzMDVaFw0x OTA1MDEwMTAzMDVaMCIxIDAeBgNVBAMTF2R5d2FuZy5jc2llLmN5dXQuZWR1LnR3 MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtAx0IYDGydbsrtSnt+s8 iRakNSq+jfiZEdhPiyAoe+IhYt8MRVogS3uDEpioQKW7ixnTidgC1gnt2jNQsXaG 87PwksxTxKiEZimwfuHxOocqGXO6+xbr+a8BBhqT84dsyYcVehP8OJYaQ6cP0xBf DJ7FHeuXe1xFfeYfQFdIZDYRtU04MkGxG5VNqeNDRFHPdp2UNVof2AOPvZBriWfi t9S0kFxWEHDdNrBjYzvPx/VJnH1eMjlu1lJ84mwrRrcT10O2hNl29CEdgWbdnqPt CTkn3I+5tJW9W+WiparIVEFxQ5sllgmbiz1GQzv0w2yYaPAXr1ZM8RgslmxlyYWq kQIDAQABo4ICbTCCAmkwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUF BwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRivPyOQwypFlle dVT1ZOGOoTvHRjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggr BgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRz ZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRz ZW5jcnlwdC5vcmcvMCIGA1UdEQQbMBmCF2R5d2FuZy5jc2llLmN5dXQuZWR1LnR3 MEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUH AgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBQYKKwYBBAHWeQIEAgSB 9gSB8wDxAHYA4mlLribo6UAJ6IYbtjuD1D7n/nSI+6SPKJMBnd3x2/4AAAFooaU4 2wAABAMARzBFAiEAr43eArFQlUG/8N7IzFKUJFS5c/upv2yw52tmUaS13RwCIGtG kpnzf0U8ByNBcp1uuYJ78dr+t70W38GEBmCygcTFAHcAY/Lbzeg7zCzPC3KEJ1dr M6SNYXePvXWmOLHHaFRL2I0AAAFooaU25wAABAMASDBGAiEAmF4eQwgzFtAzc31i /Vx8V3309K4ZJFteHGTRW0iTeXUCIQDRV1jOG/VVK9CTkzdCHIw2KIDwQs7XL5pR 4dquusFKozANBgkqhkiG9w0BAQsFAAOCAQEAiJW8Kk74Pmpeqoo/g0ts7bhK2YqQ CNZQVvt6KjJk3xoqEXcbTi4Kb6TLCYpqjZqK3DEqriB7IlfX0ECZNhItvLitEM44 A8eF+GUiTRCk06IkXZRokq7xmzLB9XO7HQXGnq1baKvFkmp5T1Ci5ITYPu62jU0O Mt8BmebjfpdtZqB7oQk7Rb5qifUVNNz7vlDfqpM+xTIc9/mYzS+9HkRFvYketOTL GxCg+0BLEfkaH0d4hOtZt4MJ50Xb9CXf8IHQkiHGeajBIc7rH73JMG68xlZNOFiZ b1Q6YBJrKsuKikmncXwYd2lLwGjFAWxaMDRsckmjYhzXMXhkpeM2TdX9pw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtAx0IYDGydbsrtSnt+s8 iRakNSq+jfiZEdhPiyAoe+IhYt8MRVogS3uDEpioQKW7ixnTidgC1gnt2jNQsXaG 87PwksxTxKiEZimwfuHxOocqGXO6+xbr+a8BBhqT84dsyYcVehP8OJYaQ6cP0xBf DJ7FHeuXe1xFfeYfQFdIZDYRtU04MkGxG5VNqeNDRFHPdp2UNVof2AOPvZBriWfi t9S0kFxWEHDdNrBjYzvPx/VJnH1eMjlu1lJ84mwrRrcT10O2hNl29CEdgWbdnqPt CTkn3I+5tJW9W+WiparIVEFxQ5sllgmbiz1GQzv0w2yYaPAXr1ZM8RgslmxlyYWq 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 325066912719649055170333566606207672988824 . . . . . . . . [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 2019-01-31 01:03:05 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-01 01:03:05 +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 'dywang.csie.cyut.edu.tw' . . . . . . . . [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 22729036010791083706760766544182654906591083040830306699589520860276180265957213941033723444149026390897793002075204106971171499858298873819872207740083858662730689052572291059930522013255859139442552311869055770463969699333502476962273917328917996447767395698887138906371537271181384026986298157236895406269736241944082303841823804658414488702721039756648086682928561368831032772489920603070111558034318569786481961561183399885497162044877027411739798651193518050673388377364515405558145131271797509579521925107013756001316983056700706576872418547120656384548978342555217946558726895512244687137876356677357290236561 . . . . . . . . . . . . . . . . . . . . [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) 62bcfc8e430ca916595e7554f564e18ea13bc746 . . . . . . . . . . . . . . . . [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 (27 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dywang.csie.cyut.edu.tw' . . . . . . . . . . . . . . . . [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) 00f1007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000168a1a538db0000040300473045022100af8dde02b1509541bff0dec8cc52942454b973fba9bf6cb0e76b6651a4b5dd1c02206b469299f37f453c072341729d6eb9827bf1dafeb7bd16dfc1840660b281c4c500770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000168a1a536e70000040300483046022100985e1e43083316d033737d62fd5c7c577df4f4ae19245b5e1c64d15b48937975022100d15758ce1bf5552bd0939337421c8c362880f042ced72f9a51e1daaebac14aa3 . . . . [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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