Certificate summary -

Owner: *.steampowered.com, Steam, Valve Corp, L=Bellevue, ST=Washington, US

Issuer: DigiCert High Assurance CA-3, www.digicert.com, DigiCert Inc, US

Expiration: Wed Mar 16 08:00:00 EDT 2016

MD5: 67:AE:A0:69:3B:3A:A7:E8:67:98:61:5C:25:1A:1C:6D

Hash: Owner Hash=5b44d4b8, Issuer Hash=1445ed77

Information extracted out of the certificate:

Owner: CN=*.steampowered.com, OU=Steam, O=Valve Corp, L=Bellevue,
ST=Washington, C=US
Issuer: CN=DigiCert High Assurance CA-3, OU=www.digicert.com, O=DigiCert
Inc, C=US
Serial number: 7fdbb4fcd24964b7c20e3c99998af0e
Valid from: Fri Mar 08 19:00:00 EST 2013 until: Wed Mar 16 08:00:00 EDT
2016
Certificate fingerprints:
	 MD5:  67:AE:A0:69:3B:3A:A7:E8:67:98:61:5C:25:1A:1C:6D
	 SHA1: E8:5E:67:65:AB:AA:0A:68:8C:69:15:C7:EF:FD:6A:18:A7:69:B2:61
	 SHA256:
CF:55:4B:91:C7:F0:BC:53:39:C8:90:19:76:1E:83:9F:91:CC:E8:3B:C9:5F:96:90:54:
5A:5F:57:E9:CF:EF:89
	 Signature algorithm name: SHA1withRSA
	 Version: 3

Extensions: 

#1: ObjectId: 1.3.6.1.5.5.7.1.1 Criticality=false
AuthorityInfoAccess [
  [
   accessMethod: ocsp
   accessLocation: URIName: http://ocsp.digicert.com
, 
   accessMethod: caIssuers
   accessLocation: URIName:
http://cacerts.digicert.com/DigiCertHighAssuranceCA-3.crt
]
]

#2: ObjectId: 2.5.29.35 Criticality=false
AuthorityKeyIdentifier [
KeyIdentifier [
0000: 50 EA 73 89 DB 29 FB 10	8F 9E E5 01 20 D4 DE 79  P.s..)...... ..y
0010: 99 48 83 F7					 .H..
]
]

#3: ObjectId: 2.5.29.19 Criticality=true
BasicConstraints:[
  CA:false
  PathLen: undefined
]

#4: ObjectId: 2.5.29.31 Criticality=false
CRLDistributionPoints [
  [DistributionPoint:
     [URIName: http://crl3.digicert.com/ca3-g20.crl]
, DistributionPoint:
     [URIName: http://crl4.digicert.com/ca3-g20.crl]
]]

#5: ObjectId: 2.5.29.32 Criticality=false
CertificatePolicies [
  [CertificatePolicyId: [2.16.840.1.114412.1.1]
[PolicyQualifierInfo: [
  qualifierID: 1.3.6.1.5.5.7.2.1
  qualifier: 0000: 16 2E 68 74 74 70 3A 2F   2F 77 77 77 2E 64 69 67 
..http://www.dig
0010: 69 63 65 72 74 2E 63 6F	6D 2F 73 73 6C 2D 63 70  icert.com/ssl-cp
0020: 73 2D 72 65 70 6F 73 69	74 6F 72 79 2E 68 74 6D  s-repository.htm

], PolicyQualifierInfo: [
  qualifierID: 1.3.6.1.5.5.7.2.2
  qualifier: 0000: 30 82 01 56 1E 82 01 52   00 41 00 6E 00 79 00 20 
0..V...R.A.n.y. 
0010: 00 75 00 73 00 65 00 20	00 6F 00 66 00 20 00 74  .u.s.e. .o.f. .t
0020: 00 68 00 69 00 73 00 20	00 43 00 65 00 72 00 74  .h.i.s. .C.e.r.t
0030: 00 69 00 66 00 69 00 63	00 61 00 74 00 65 00 20  .i.f.i.c.a.t.e. 
0040: 00 63 00 6F 00 6E 00 73	00 74 00 69 00 74 00 75  .c.o.n.s.t.i.t.u
0050: 00 74 00 65 00 73 00 20	00 61 00 63 00 63 00 65  .t.e.s. .a.c.c.e
0060: 00 70 00 74 00 61 00 6E	00 63 00 65 00 20 00 6F  .p.t.a.n.c.e. .o
0070: 00 66 00 20 00 74 00 68	00 65 00 20 00 44 00 69  .f. .t.h.e. .D.i
0080: 00 67 00 69 00 43 00 65	00 72 00 74 00 20 00 43  .g.i.C.e.r.t. .C
0090: 00 50 00 2F 00 43 00 50	00 53 00 20 00 61 00 6E  .P./.C.P.S. .a.n
00A0: 00 64 00 20 00 74 00 68	00 65 00 20 00 52 00 65  .d. .t.h.e. .R.e
00B0: 00 6C 00 79 00 69 00 6E	00 67 00 20 00 50 00 61  .l.y.i.n.g. .P.a
00C0: 00 72 00 74 00 79 00 20	00 41 00 67 00 72 00 65  .r.t.y. .A.g.r.e
00D0: 00 65 00 6D 00 65 00 6E	00 74 00 20 00 77 00 68  .e.m.e.n.t. .w.h
00E0: 00 69 00 63 00 68 00 20	00 6C 00 69 00 6D 00 69  .i.c.h. .l.i.m.i
00F0: 00 74 00 20 00 6C 00 69	00 61 00 62 00 69 00 6C  .t. .l.i.a.b.i.l
0100: 00 69 00 74 00 79 00 20	00 61 00 6E 00 64 00 20  .i.t.y. .a.n.d. 
0110: 00 61 00 72 00 65 00 20	00 69 00 6E 00 63 00 6F  .a.r.e. .i.n.c.o
0120: 00 72 00 70 00 6F 00 72	00 61 00 74 00 65 00 64  .r.p.o.r.a.t.e.d
0130: 00 20 00 68 00 65 00 72	00 65 00 69 00 6E 00 20  . .h.e.r.e.i.n. 
0140: 00 62 00 79 00 20 00 72	00 65 00 66 00 65 00 72  .b.y. .r.e.f.e.r
0150: 00 65 00 6E 00 63 00 65	00 2E			 .e.n.c.e..

]]  ]
]

#6: ObjectId: 2.5.29.37 Criticality=false
ExtendedKeyUsages [
  serverAuth
  clientAuth
]

#7: ObjectId: 2.5.29.15 Criticality=true
KeyUsage [
  DigitalSignature
  Key_Encipherment
]

#8: ObjectId: 2.5.29.17 Criticality=false
SubjectAlternativeName [
  DNSName: *.steampowered.com
  DNSName: steampowered.com
]

#9: ObjectId: 2.5.29.14 Criticality=false
SubjectKeyIdentifier [
KeyIdentifier [
0000: FF 5D CC B4 9C 55 83 12	02 4E 41 A0 63 4C AC 7A  .]...U...NA.cL.z
0010: EC D1 29 0C					 ..).
]
]

Certificate in PEM format (Base64 encoded X.509):

-----BEGIN CERTIFICATE-----
MIIGwzCCBaugAwIBAgIQB/27T80klkt8IOPJmZivDjANBgkqhkiG9w0BAQUFADBm
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSUwIwYDVQQDExxEaWdpQ2VydCBIaWdoIEFzc3VyYW5j
ZSBDQS0zMB4XDTEzMDMwOTAwMDAwMFoXDTE2MDMxNjEyMDAwMFowdzELMAkGA1UE
BhMCVVMxEzARBgNVBAgTCldhc2hpbmd0b24xETAPBgNVBAcTCEJlbGxldnVlMRMw
EQYDVQQKEwpWYWx2ZSBDb3JwMQ4wDAYDVQQLEwVTdGVhbTEbMBkGA1UEAwwSKi5z
dGVhbXBvd2VyZWQuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA
udUc4JeNSkhQjiH3U3yKJo9n7ofq1qeAUt/Ni6Xoy3Qv0CJhfiAYb9uSF8uRWLlV
Os9EeYiQHdSSNkjuVxjDJ8KrFXV1sVBfhT9lWgOjT87MWz7X9tAukgDe3PvpFKTR
JYUS759mCBrxHA3B9s6wlaPqKwdug12o17rKOjUrhjEht6oj6HkFr8OW3P/yScmW
JeCv2Mt834693H4vpLU6kympSJj+tXQQ9tjAeb9Du3iZPEfJpMh50KPbpOQWkZrH
xDMG3hLyCBpX70eF9Dgplub/13kcWjPF0Lj+OgwySVdV63bz82YhRYRG2OzY6fxS
n88kzSJTSUnb+jziGZvRQQIDAQABo4IDWjCCA1YwHwYDVR0jBBgwFoAUUOpzidsp
+xCPnuUBINTeeZlIg/cwHQYDVR0OBBYEFP9dzLScVYMSAk5BoGNMrHrs0SkMMC8G
A1UdEQQoMCaCEiouc3RlYW1wb3dlcmVkLmNvbYIQc3RlYW1wb3dlcmVkLmNvbTAO
BgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMGEG
A1UdHwRaMFgwKqAooCaGJGh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9jYTMtZzIw
LmNybDAqoCigJoYkaHR0cDovL2NybDQuZGlnaWNlcnQuY29tL2NhMy1nMjAuY3Js
MIIBxAYDVR0gBIIBuzCCAbcwggGzBglghkgBhv1sAQEwggGkMDoGCCsGAQUFBwIB
Fi5odHRwOi8vd3d3LmRpZ2ljZXJ0LmNvbS9zc2wtY3BzLXJlcG9zaXRvcnkuaHRt
MIIBZAYIKwYBBQUHAgIwggFWHoIBUgBBAG4AeQAgAHUAcwBlACAAbwBmACAAdABo
AGkAcwAgAEMAZQByAHQAaQBmAGkAYwBhAHQAZQAgAGMAbwBuAHMAdABpAHQAdQB0
AGUAcwAgAGEAYwBjAGUAcAB0AGEAbgBjAGUAIABvAGYAIAB0AGgAZQAgAEQAaQBn
AGkAQwBlAHIAdAAgAEMAUAAvAEMAUABTACAAYQBuAGQAIAB0AGgAZQAgAFIAZQBs
AHkAaQBuAGcAIABQAGEAcgB0AHkAIABBAGcAcgBlAGUAbQBlAG4AdAAgAHcAaABp
AGMAaAAgAGwAaQBtAGkAdAAgAGwAaQBhAGIAaQBsAGkAdAB5ACAAYQBuAGQAIABh
AHIAZQAgAGkAbgBjAG8AcgBwAG8AcgBhAHQAZQBkACAAaABlAHIAZQBpAG4AIABi
AHkAIAByAGUAZgBlAHIAZQBuAGMAZQAuMHsGCCsGAQUFBwEBBG8wbTAkBggrBgEF
BQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29tMEUGCCsGAQUFBzAChjlodHRw
Oi8vY2FjZXJ0cy5kaWdpY2VydC5jb20vRGlnaUNlcnRIaWdoQXNzdXJhbmNlQ0Et
My5jcnQwDAYDVR0TAQH/BAIwADANBgkqhkiG9w0BAQUFAAOCAQEAMee5aHHNI2oE
jO9dVbLxtALmVD5o6JEoguHgWZB08GHZ93ahjS//lGl8JsCxTvXj0aD+2o5JbEQU
NDfdt4VYV0QWmy8BKf2EP5kuneJWcgDS1BXd9THaCMS19aNZcVwx7iYZJ/9vDgSy
nhm25fh0zaV0rYL/tEUyCdwwgd+SNr+9MeHxjfVs8ylcwd3u89Le9Q6D8u3iEbrk
aOph+YdQ5EqCsRqn1xalFRvmMmZPACuo5oif2/WEPdDWnHn3g5ivPG3jurP9s2uC
t1aTm3ozLWhf5aVbMGE4U85YZT//nniYWO/J7db6rc3imw+WKdhXNuB9rheb3BPZ
H6sZMya8MA==
-----END CERTIFICATE-----

Visit the Web site using this certificate: https://www.steampowered.com

Search for the certificate of the issuer.