enginuity22.esserver.com

Issued by Starfield Secure Certification Authority

About this certificate


This digital certificate with serial number 27:94:8c:21:52:83:44 was issued on by Starfield Technologies, Inc. .

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: localityName or stateOrProvinceName is required if organizationName is set
  • ERROR: stateOrProvinceName is required if organizationName is set
  • ERROR: countryName is required if organizationName is set

enginuity22.esserver.com

Organization: enginuity22.esserver.com
Organization unit: Domain Control Validated

Starfield Technologies, Inc.

Company registration number: 10688435
Organization: Starfield Technologies, Inc.
Organization unit: http://certificates.starfieldtech.com/repository

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 27:94:8c:21:52:83:44
Serial Number (int): 11140853667103556
Serial Number lenght: 54 bits, 7 octets

SubjectKeyId: d1:03:93:21:d7:b4:75:cb:62:5c:a6:b3:f6:4b:13:2a:4c:10:9c:5d
AuthorityKeyId: 49:4b:52:27:d1:1b:bc:f2:a1:21:6a:62:7b:51:42:7a:8a:d7:d5:56

Fingerprint (sha1): b3:ab:80:96:0c:99:6c:7c:34:9a:8e:6c:da:54:b4:09:40:c4:0b:b7
Fingerprint (sha256): a1:cf:3f:01:44:5f:25:af:4a:51:50:73:f6:1d:2a:58:06:42:03:78:08:67:7f:19:2d:ef:0d:3b:e9:05:23:c3

Issuing Certificate URL: http://certificates.starfieldtech.com/repository/sf_intermediate.crt

Revocation information

OCSP Server: http://ocsp.starfieldtech.com/
CRL Distribution Point: http://crl.starfieldtech.com/sfs1-20.crl

Check the revocation status for the current certificate on enginuity22.esserver.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

Extensions

9 extensions
No unhandled critical extensions



CA Certificate

This is not a CA certificate

Subject Alternative Names

enginuity22.esserver.com
www.enginuity22.esserver.com

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFsDCCBJigAwIBAgIHJ5SMIVKDRDANBgkqhkiG9w0BAQUFADCB3DELMAkGA1UE BhMCVVMxEDAOBgNVBAgTB0FyaXpvbmExEzARBgNVBAcTClNjb3R0c2RhbGUxJTAj BgNVBAoTHFN0YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xOTA3BgNVBAsTMGh0 dHA6Ly9jZXJ0aWZpY2F0ZXMuc3RhcmZpZWxkdGVjaC5jb20vcmVwb3NpdG9yeTEx MC8GA1UEAxMoU3RhcmZpZWxkIFNlY3VyZSBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0 eTERMA8GA1UEBRMIMTA2ODg0MzUwHhcNMTEwODA5MjMzODEwWhcNMTMwODE0MjEw OTEwWjBpMSEwHwYDVQQKExhlbmdpbnVpdHkyMi5lc3NlcnZlci5jb20xITAfBgNV BAsTGERvbWFpbiBDb250cm9sIFZhbGlkYXRlZDEhMB8GA1UEAxMYZW5naW51aXR5 MjIuZXNzZXJ2ZXIuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA ogdrGE+cx8nG3f5K1NqJupg7Fx/W5Py0P7nv2D1SKLM15n1fLyFS/TkkvS7/Ydso 6heK8rX9MO1EkPFw4L+nAUEwXKrE+vmLPq97abtrXubDx4fPImzxbpNaaXdPjOzD 3LsTnc0aNVwpEN/teB2CRDBt32+qmy3f2pOyIwMoMUbsns3VsE4Ak9IcWx6KGhxP mGZTreSrQHZgpyjwITItvxXGV0JLR69VhYbLvd1QOsNhNlk0rxQ3tnEKlLs8Hi4C ANVfjJkhDitSuRRWfvH4I70tLht6BTg6k/gSUrxMqjuKscRcmZAlZ0Gj6pKpeKya KDyALqx9qP4zlR/817URMQIDAQABo4IB5zCCAeMwDwYDVR0TAQH/BAUwAwEBADAd BgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDgYDVR0PAQH/BAQDAgWgMDkG A1UdHwQyMDAwLqAsoCqGKGh0dHA6Ly9jcmwuc3RhcmZpZWxkdGVjaC5jb20vc2Zz MS0yMC5jcmwwUwYDVR0gBEwwSjBIBgtghkgBhv1uAQcXATA5MDcGCCsGAQUFBwIB FitodHRwczovL2NlcnRzLnN0YXJmaWVsZHRlY2guY29tL3JlcG9zaXRvcnkvMIGN BggrBgEFBQcBAQSBgDB+MCoGCCsGAQUFBzABhh5odHRwOi8vb2NzcC5zdGFyZmll bGR0ZWNoLmNvbS8wUAYIKwYBBQUHMAKGRGh0dHA6Ly9jZXJ0aWZpY2F0ZXMuc3Rh cmZpZWxkdGVjaC5jb20vcmVwb3NpdG9yeS9zZl9pbnRlcm1lZGlhdGUuY3J0MB8G A1UdIwQYMBaAFElLUifRG7zyoSFqYntRQnqK19VWMEEGA1UdEQQ6MDiCGGVuZ2lu dWl0eTIyLmVzc2VydmVyLmNvbYIcd3d3LmVuZ2ludWl0eTIyLmVzc2VydmVyLmNv bTAdBgNVHQ4EFgQU0QOTIde0dctiXKaz9ksTKkwQnF0wDQYJKoZIhvcNAQEFBQAD ggEBACOS2p9uoZ/yG8X13hU55ZJRfPz49SybTjm6aLQmCexaYVH/o8N8A/YM/DqZ EktzOeT81VOBlq1TWC0LudaUlLzst/kz+BGSurAeJ27eCh6CQUTdxQLruX7fdgih 1qFihqFXe2usAs6UCCArsRO4f4ivp4lFyJnLk7GotEwNES7RqtA8mG80E/C4HVSV 0y3p4tkc9oGqrmg8BTLa+6DhIKsjSc9k+ebpKoGlf9lBrutQNMCL2YMNoy+AhYyO CmbZWnXuOpnSYPiPqe0C3USR/7Y8EfRI74yEyXj3210cwVekIXhbeLv8JhfBHypK LCxNgHR3QO18hu/Z8GPt7Ke+/VU= -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAogdrGE+cx8nG3f5K1NqJ upg7Fx/W5Py0P7nv2D1SKLM15n1fLyFS/TkkvS7/Ydso6heK8rX9MO1EkPFw4L+n AUEwXKrE+vmLPq97abtrXubDx4fPImzxbpNaaXdPjOzD3LsTnc0aNVwpEN/teB2C RDBt32+qmy3f2pOyIwMoMUbsns3VsE4Ak9IcWx6KGhxPmGZTreSrQHZgpyjwITIt vxXGV0JLR69VhYbLvd1QOsNhNlk0rxQ3tnEKlLs8Hi4CANVfjJkhDitSuRRWfvH4 I70tLht6BTg6k/gSUrxMqjuKscRcmZAlZ0Gj6pKpeKyaKDyALqx9qP4zlR/817UR MQIDAQAB -----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 11140853667103556 . . . . . . . . [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 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8 (stateOrProvinceName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Arizona' . . . . . . . . . . . . [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 'Scottsdale' . . . . . . . . . . . . [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 'Starfield Technologies, 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 'http://certificates.starfieldtech.com/repository' . . . . . . . . . . . . [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 'Starfield Secure Certification Authority' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.5 (serialNumber) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString '10688435' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2011-08-09 23:38:10 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-08-14 21:09:10 +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 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'enginuity22.esserver.com' . . . . . . . . . . . . [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 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'enginuity22.esserver.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 20454263524150614277723348965664011432147632071989422820318360323044564764476848806756803462480489605268275633599978168634764563299509725519740727260173024246204374744570349151521815768940778956502741305468675311687664210825122047442421575729005517051387717210014556335420942168488603050904104539035972190095607761172324887403696391929416945054281298164845718893643521152615570564139547106990603533719498942353656581595701355246045829717568217963214576092117010959235628381552387204083335170697735329990730056410119894891740945552678653066855060635251349266469103478333931500175199912278762695462408835032034837860657 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (5 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN false . . . . . . . . . . . . . . . . [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 2.5.29.15 (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 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (50 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.starfieldtech.com/sfs1-20.crl' . . . . . . . . . . . . . . . . [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 (76 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.840.1.114414.1.7.23.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://certs.starfieldtech.com/repository/' . . . . . . . . . . . . . . . . [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 (128 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.starfieldtech.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 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://certificates.starfieldtech.com/repository/sf_intermediate.crt' . . . . . . . . . . . . . . . . [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 494b5227d11bbcf2a1216a627b51427a8ad7d556 . . . . . . . . . . . . . . . . [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 (58 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'enginuity22.esserver.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.enginuity22.esserver.com' . . . . . . . . . . . . . . . . [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) d1039321d7b475cb625ca6b3f64b132a4c109c5d . . . . [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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