eustoma.cc.ncu.edu.tw
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:13:66:5d:c2:2a:65:84:22:94:68:bc:06:76:db:a0:71:1e was issued on by Let's Encrypt.
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We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=eustoma.cc.ncu.edu.tw
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:13:66:5d:c2:2a:65:84:22:94:68:bc:06:76:db:a0:71:1eSerial Number (int): 355050576775863186211826792069989394313502
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 21:37:1b:9e:f5:2f:2a:1c:d0:a1:1d:86:97:c5:7d:d8:e5:1f:f5:5a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 46:0f:11:61:32:ef:11:34:d6:2c:d4:17:fe:98:c0:7e:9e:b8:85:68
Fingerprint (sha256): 0b:27:5e:67:bd:1f:41:76:9a:09:ad:4d:1e:60:c1:be:2a:18:e3:f0:fd:02:03:df:e8:f4:9d:87:7f:66:51:d9
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate eustoma.cc.ncu.edu.tw
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for eustoma.cc.ncu.edu.tw
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
eustoma.cc.ncu.edu.tw
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Certificate
The complete raw certificate details for eustoma.cc.ncu.edu.tw in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGDTCCBPWgAwIBAgISBBNmXcIqZYQilGi8BnbboHEeMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNzEwMzEyMDAxMjJaFw0x ODAxMjkyMDAxMjJaMCAxHjAcBgNVBAMTFWV1c3RvbWEuY2MubmN1LmVkdS50dzCC AiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAMezcem/SnT8+a++/SCyR2nO 8KCu1Uvyh6CanqQIW96TZdEKRaFKCJY/aAPW8asYdU14rOkC8EW3pIV/+uWbmWwX H8SgSMoNYCJK4AoNVQzQjfFNan7uutRr3BRCDuqsulSufqYB+V6+68NrfUG02l/F J/xnjWQ4zVvLE6tbPWPvimQaCFjTOHyhgGG0WFrsHNBErd0C15ySR0gvwClY10n+ sfVhmziTVKdwJxoqMmwNcfKMQeJY47QDuh1SlHzTq1SiwffMEaZazdLlhHF5/qin 332c+NaZOb1vOOYcIODwfN3h8x6dyGORgjjBCXepxvCyPGeyUHWV4UE4iH4v1ywJ B+WxRLQoJEE0ozP8iJOL7BsKnE4pXZIjkpdWxFmAtBcln8NzwwFeOzVDG0iJ0+ZH g+czIyCVP+ufcsZgan2aL1yvD4CeqiPHf0ml1ekEh9F3ma9HYZzCKrvvMOBL2JVU 1JxmiO5xUmIceI4yivY2KqmK5yHu3WLRx6M6EH+nk4CICUhXXr5fsa2ORt5BAdf4 Df3MSebv6t+XLgr69hZZ5gfLYUfqEE+YwViumCHXjSaf0nh+4OpszxekhPK53wq+ z/KUqnvtIm5X4UtE+HIwMJlpOWQGKzBFLy+UEx0635faU6JAGbUiHb47wjpdrQbx m8PRNPfIaP7abBf36+BJAgMBAAGjggIVMIICETAOBgNVHQ8BAf8EBAMCBaAwHQYD VR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0O BBYEFCE3G571Lyoc0KEdhpfFfdjlH/VaMB8GA1UdIwQYMBaAFKhKamMEfd265tE5 t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29j c3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2Nl cnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8wIAYDVR0RBBkwF4IVZXVzdG9tYS5j Yy5uY3UuZWR1LnR3MIH+BgNVHSAEgfYwgfMwCAYGZ4EMAQIBMIHmBgsrBgEEAYLf EwEBATCB1jAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcw gasGCCsGAQUFBwICMIGeDIGbVGhpcyBDZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSBy ZWxpZWQgdXBvbiBieSBSZWx5aW5nIFBhcnRpZXMgYW5kIG9ubHkgaW4gYWNjb3Jk YW5jZSB3aXRoIHRoZSBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6 Ly9sZXRzZW5jcnlwdC5vcmcvcmVwb3NpdG9yeS8wDQYJKoZIhvcNAQELBQADggEB AHTgXiSXwW9MIJZzzWRjzRrQmYSwkDM+79WyKrluddkR1eG+s1oMpZWCRGfZDkF2 QpkzgXtFwth6h8gkit9M7ixi0lRsrT6IgiRsblhO7Wnt3ehemjScRL1xgKTMQZ0K 9LLU1+PVOgYztFFive9j1YHPDa6r2Zno8ixAao+zXPW/Qsw746dp4BMTzUYgGaJO aB/wp8A2vFIwQt5RQtK85gbaFifN2BKuoo1G8UqZA4ZafjALv6c9IhWixgqToWz1 mNai2zFvWHoq4ppIsPl+QgHmUVpkIXTCdSXCVaNew/lN/lIxBvA8B/OAdkr5gqgy LWH+jnWuQ0oykou9iwjMxm4= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAx7Nx6b9KdPz5r779ILJH ac7woK7VS/KHoJqepAhb3pNl0QpFoUoIlj9oA9bxqxh1TXis6QLwRbekhX/65ZuZ bBcfxKBIyg1gIkrgCg1VDNCN8U1qfu661GvcFEIO6qy6VK5+pgH5Xr7rw2t9QbTa X8Un/GeNZDjNW8sTq1s9Y++KZBoIWNM4fKGAYbRYWuwc0ESt3QLXnJJHSC/AKVjX Sf6x9WGbOJNUp3AnGioybA1x8oxB4ljjtAO6HVKUfNOrVKLB98wRplrN0uWEcXn+ qKfffZz41pk5vW845hwg4PB83eHzHp3IY5GCOMEJd6nG8LI8Z7JQdZXhQTiIfi/X LAkH5bFEtCgkQTSjM/yIk4vsGwqcTildkiOSl1bEWYC0FyWfw3PDAV47NUMbSInT 5keD5zMjIJU/659yxmBqfZovXK8PgJ6qI8d/SaXV6QSH0XeZr0dhnMIqu+8w4EvY lVTUnGaI7nFSYhx4jjKK9jYqqYrnIe7dYtHHozoQf6eTgIgJSFdevl+xrY5G3kEB 1/gN/cxJ5u/q35cuCvr2FlnmB8thR+oQT5jBWK6YIdeNJp/SeH7g6mzPF6SE8rnf Cr7P8pSqe+0iblfhS0T4cjAwmWk5ZAYrMEUvL5QTHTrfl9pTokAZtSIdvjvCOl2t BvGbw9E098ho/tpsF/fr4EkCAwEAAQ== -----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 355050576775863186211826792069989394313502 . . . . . . . . [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 2017-10-31 20:01:22 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-01-29 20:01:22 +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 'eustoma.cc.ncu.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 814708824299404378474146764057436900404882815762157190956506576832441605302197798733289816259698368917223912235284107722286376912627442141468240716857582101798841276874078020445817505406005305328454875644814507654797006961020381345813495938209156370934981148500991109333000621807704110116540175202223967408729661300298380492965696080613909637502996709532256577380291150779978360604555461768168315566219600905311550434987686542343246234326946847252621822428099186074049474101383389146942656941976995043441406279386731319372976789385029974023997691465912670961410185198865930358658370869205902204212540033506993492748169599240123835491224508545144734057871941976025114372963198158027578198724213359278030859989973662381580418188331037351819719228799465220710819092568631975388242874682564274058887554256255584804760421076885511278772103097386807992621855597125605945011210476736607918950319260398952945548539575018575865249071446729131758678329763572063748964944888930058186108801358815918498105560437042585624326352700595716250784368512081905762012399603088410588191973774785090958669368301278851138745445288627873571396303019754980838217744591807374776518989116940070509753357720933221595057592967308480798101820039979322502770581577 . . . . . . . . . . . . . . . . . . . . [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) 21371b9ef52f2a1cd0a11d8697c57dd8e51ff55a . . . . . . . . . . . . . . . . [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 (25 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'eustoma.cc.ncu.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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) 0074e05e2497c16f4c209673cd6463cd1ad09984b090333eefd5b22ab96e75d911d5e1beb35a0ca595824467d90e4176429933817b45c2d87a87c8248adf4cee2c62d2546cad3e8882246c6e584eed69eddde85e9a349c44bd7180a4cc419d0af4b2d4d7e3d53a0633b45162bdef63d581cf0daeabd999e8f22c406a8fb35cf5bf42cc3be3a769e01313cd462019a24e681ff0a7c036bc523042de5142d2bce606da1627cdd812aea28d46f14a9903865a7e300bbfa73d2215a2c60a93a16cf598d6a2db316f587a2ae29a48b0f97e4201e6515a642174c27525c255a35ec3f94dfe523106f03c07f380764af982a8322d61fe8e75ae434a32928bbd8b08ccc66e