www.columbiadoctors.org

- Columbia University -

Issued by InCommon RSA Server CA

About this certificate

This digital certificate with serial number 7a:36:c3:a5:17:9d:8a:61:fc:66:5d:c1:54:36:7a:14 was issued on by Internet2.

This 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. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Columbia University

Organization: Columbia University
Organization unit: Information Technology
State / Province: NY
Locality: New York
Country: US

Internet2

Organization: Internet2
Organization unit: InCommon
State / Province: MI
Locality: Ann Arbor
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 7a:36:c3:a5:17:9d:8a:61:fc:66:5d:c1:54:36:7a:14
Serial Number (int): 162450167665948754189220052556802587156
Serial Number lenght: 127 bits, 16 octets

SubjectKeyId: 50:67:fe:cb:3c:4c:d3:41:95:22:e6:fd:22:ec:a4:3d:f6:28:8c:61
AuthorityKeyId: 1e:05:a3:77:8f:6c:96:e2:5b:87:4b:a6:b4:86:ac:71:00:0c:e7:38

Fingerprint (sha1): 4b:4e:43:31:fc:4f:4c:f9:3b:d3:8e:4f:b9:56:cb:c7:82:e1:4f:59
Fingerprint (sha256): c5:fd:20:34:dc:f8:09:fd:ed:e4:1a:44:1d:03:14:07:09:01:fd:77:9c:34:6e:3a:86:3d:36:e6:ca:b6:f4:8c

Issuing Certificate URL: http://crt.usertrust.com/InCommonRSAServerCA_2.crt

Revocation information

OCSP Server: http://ocsp.usertrust.com
CRL Distribution Point: http://crl.incommon-rsa.org/InCommonRSAServerCA.crl

Check the revocation status for certificate www.columbiadoctors.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.columbiadoctors.org

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

www.columbiadoctors.org

Other certificates including the domain name columbiadoctors.org

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.columbiadoctors.org in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo5fcFYC1luaodJoGo3Zt
8fgMH6hhQfcYzjrhWR0wV6PfgPqeRXZfYM/+X4rl/gtFpxvn+mrzuc+mY8ToWxp2
Dhvk8GehyRNIRMzxmJEEddfzlGD8OEzCfgyrGRtmKb7ZUEa/noo8JEnThjKDjoyC
yI99SnHD5bkstt3PfLnpaWoGnwLuhhup7BefJpeeDUlvDh75uGTeXUn5UHaOeOmo
JRLVv13Ug+D6wHUoTmWPY96/31zItZdgu0lVKpbfuGgaFOKocqMnm38le61DlFYM
N0Z00tRSEFOBVn+giO9Zpof+pMIok54P4Ob93+OT3ZqRH+vqXK6idw/2DFl3R1/G
qQIDAQAB
-----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 162450167665948754189220052556802587156
 . . . . . . . . [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 2.5.4.8 (stateOrProvinceName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'MI'
 . . . . . . . . . . . . [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 'Ann Arbor'
 . . . . . . . . . . . . [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 'Internet2'
 . . . . . . . . . . . . [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 'InCommon'
 . . . . . . . . . . . . [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 'InCommon RSA Server CA'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-06-20 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-20 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 2.5.4.6 (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 'NY'
 . . . . . . . . . . . . [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 'New York'
 . . . . . . . . . . . . [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 'Columbia University'
 . . . . . . . . . . . . [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 'Information Technology'
 . . . . . . . . . . . . [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.columbiadoctors.org'
 . . . . . . . . [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 20651728520064357010643563952324072605295648540969856250829410777248124693167339424317292702330367295777601524797515332247255231037229349524352188600775446414626968911383095948772937727876445722368420455238324486163859251611236178879759930558845237357937632747210913885076909068980361700929188872792619069228801241939177029426307459010526334016818351350506093555624969980251022505820151328670537939966877232768340968069356834958852552025172148020786618867719423305646249434588125577197350078570433769171057857731928381503898275439557485962171545278077353401094840880449744661146123943209672058270733085525393708926633
 . . . . . . . . . . . . . . . . . . . . [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 1e05a3778f6c96e25b874ba6b486ac71000ce738
 . . . . . . . . . . . . . . . . [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)
							5067fecb3c4cd3419522e6fd22eca43df6288c61
 . . . . . . . . . . . . . . . . [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 (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 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (96 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.5923.1.4.3.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://www.incommon.org/cert/repository/cps_ssl.pdf'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.2 (Organization Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [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 (61 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.incommon-rsa.org/InCommonRSAServerCA.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 (105 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.usertrust.com/InCommonRSAServerCA_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.usertrust.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 (27 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.columbiadoctors.org'
 . . . . [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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