engineering.cornell.edu
Issued by R3
About this certificate
This digital certificate with serial number 04:88:b3:63:68:d0:39:99:d7:2c:e3:ef:ab:12:c9:77:45:81 was issued on by Let's Encrypt.
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- DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
- 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)
Certificate Subject
CN=engineering.cornell.edu
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:88:b3:63:68:d0:39:99:d7:2c:e3:ef:ab:12:c9:77:45:81Serial Number (int): 394965993602790995716787349711610380240257
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: bf:0e:78:8b:b3:45:11:37:c4:0d:92:4d:cc:aa:e3:27:21:cc:7b:0d
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 8c:81:7a:d9:a4:d2:7f:0e:d3:37:8e:c7:c6:0f:d9:2c:69:0f:e7:1f
Fingerprint (sha256): 00:c9:72:27:34:68:07:1f:65:5e:5a:34:94:6c:b0:8e:a0:6b:c7:0c:b8:58:c4:fc:80:98:01:48:bc:47:a9:6b
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate engineering.cornell.edu
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for engineering.cornell.edu
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
engineering.cornell.edu
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Certificate
The complete raw certificate details for engineering.cornell.edu in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIE+jCCA+KgAwIBAgISBIizY2jQOZnXLOPvqxLJd0WBMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzEyMTMyMzE2MDJaFw0yNDAzMTIyMzE2MDFaMCIxIDAeBgNVBAMT F2VuZ2luZWVyaW5nLmNvcm5lbGwuZWR1MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A MIIBCgKCAQEA03dlueiqU9TaBAlH3pgfiE4UXaaZsRIeYw1DW0GKPZBhGsKo/esl e37ErDlVboZ4oBd79JeKUP8f66eBYj+L8v//ENUBVO8q9JDfCVP6bTPXr0NGbnJH GIBbEsc9yXB88LOFQgZtGpZnn7oGEesuyG/bsSZy3vpfb/n/qHJtDoq/ve4zAKpv e3G6Ebie/RNlYiYrR4FMaUUxAntMObJafwqLWYWcrziW96NGL3lbJIdqdIrjHr/8 oxALM9wQOOE4+zHzego2dS32LyxkTgSHRURX9KojWKwETgq+dpM/QT17kuZqOV7T B90PVOd79KKRJwKOAFXnMi7Lhh3ejggv1wIDAQABo4ICGDCCAhQwDgYDVR0PAQH/ BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8E AjAAMB0GA1UdDgQWBBS/DniLs0URN8QNkk3MquMnIcx7DTAfBgNVHSMEGDAWgBQU LrMXt1hWy65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGG FWh0dHA6Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmku bGVuY3Iub3JnLzAiBgNVHREEGzAZghdlbmdpbmVlcmluZy5jb3JuZWxsLmVkdTAT BgNVHSAEDDAKMAgGBmeBDAECATCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB2AEiw 42vapkc0D+VqAvqdMOscUgHLVt0sgdm7v6s52IRzAAABjGWuKyAAAAQDAEcwRQIh AODqM6QnFxfJ7UQQK5R2IdtduTJRq9g93iGRoANaq1ZVAiAVOxlY2QgTm+vR7jRq K2XuNpWKjS8naYcoQRFtzb30/AB1AHb/iD8KtvuVUcJhzPWHujS0pM27KdxoQgqf 5mdMWjp0AAABjGWuK2AAAAQDAEYwRAIgcJcmPnShGSZdlnWKmfl9BT8R8+oFeuJk 1VQCoKNMjF8CIEm08tgtdJoWau8g/hH9P+IALhicdjDzaeTGl0GODFiKMA0GCSqG SIb3DQEBCwUAA4IBAQAWEPYV4dNmNRAjVsxxfV+cSt/uCZbfmUd+sWfC5ryXLvZF 3KzsxbcAGeS8PY70s840soRMyLaFEGqZnwSlpkllKmn3ttpxmY/BAlLEDVhxFMmK XHD2xb6IWOLVwC6V4FsmuCU8IUzAk+TrijFxBje34/duQg8CjY4OXL6Z4KTIGdF/ ZCWxEQjIxEuwfO67ANyrUV9FXSHVPYwDbwm5jN9pkpHDKuWmiRynJBoaGskNpdOg bdFielSrEPrrGz8d/78+73G5b1S/SqoHxHGnZ1gLIdZ1wON8iovmczUM/0PowsNm KLbpgnk8++DEOyatdoEpaHbu2JpgB77rNlf/icZW -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA03dlueiqU9TaBAlH3pgf iE4UXaaZsRIeYw1DW0GKPZBhGsKo/esle37ErDlVboZ4oBd79JeKUP8f66eBYj+L 8v//ENUBVO8q9JDfCVP6bTPXr0NGbnJHGIBbEsc9yXB88LOFQgZtGpZnn7oGEesu yG/bsSZy3vpfb/n/qHJtDoq/ve4zAKpve3G6Ebie/RNlYiYrR4FMaUUxAntMObJa fwqLWYWcrziW96NGL3lbJIdqdIrjHr/8oxALM9wQOOE4+zHzego2dS32LyxkTgSH RURX9KojWKwETgq+dpM/QT17kuZqOV7TB90PVOd79KKRJwKOAFXnMi7Lhh3ejggv 1wIDAQAB -----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 394965993602790995716787349711610380240257 . . . . . . . . [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 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-13 23:16:02 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-12 23:16:01 +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 'engineering.cornell.edu' . . . . . . . . [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 26695159384373369845709358098374780265990499043950374347724396609458701933701770319952474810313851700046607426219730083565216481854857583992257238874543591423003715813693891015091275060232403199501681356007429988817643798084619089246260921599543280164777577960888560152266402352210480332435467709482440546940453389921491368808979601804386437156673514261702767082377585476103083295874298395225667022143060160026377573583937142196818122435939481254804162303776302610397764309326731565108031723307598991536594054272929657683304164540690403131385718625434641928019718011881755414302282757494601343220985513414735396614103 . . . . . . . . . . . . . . . . . . . . [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) bf0e788bb3451137c40d924dccaae32721cc7b0d . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 'engineering.cornell.edu' . . . . . . . . . . . . . . . . [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 (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 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c65ae2b200000040300473045022100e0ea33a4271717c9ed44102b947621db5db93251abd83dde2191a0035aab56550220153b1958d908139bebd1ee346a2b65ee36958a8d2f2769872841116dcdbdf4fc00750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018c65ae2b60000004030046304402207097263e74a119265d96758a99f97d053f11f3ea057ae264d55402a0a34c8c5f022049b4f2d82d749a166aef20fe11fd3fe2002e189c7630f369e4c697418e0c588a . . . . [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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