duckrefs.uoregon.edu

Issued by R3

About this certificate

This digital certificate with serial number 04:11:ac:e9:63:09:81:19:e8:9a:ea:4d:43:7a:b9:31:f2:a4 was issued on by Let's Encrypt.

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:
  • 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=duckrefs.uoregon.edu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:11:ac:e9:63:09:81:19:e8:9a:ea:4d:43:7a:b9:31:f2:a4
Serial Number (int): 354463782993851543722352769483079687467684
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 79:9b:50:1c:d3:d5:73:90:eb:0d:52:85:15:71:e2:3d:68:34:63:dc
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 84:e2:8e:4e:ba:1c:6c:cd:09:65:8b:6d:c5:b6:61:e5:80:dd:fb:b9
Fingerprint (sha256): 02:15:6c:02:6a:3d:5d:97:b0:2a:81:1e:35:03:33:a9:2b:dc:75:57:7b:60:df:f4:8c:b7:c0:4c:fb:6f:f8:33

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate duckrefs.uoregon.edu

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for duckrefs.uoregon.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

duckrefs.uoregon.edu

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Certificate

The complete raw certificate details for duckrefs.uoregon.edu in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE9DCCA9ygAwIBAgISBBGs6WMJgRnomupNQ3q5MfKkMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAzMDEwOTAwNDFaFw0yNDA1MzAwOTAwNDBaMB8xHTAbBgNVBAMT
FGR1Y2tyZWZzLnVvcmVnb24uZWR1MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB
CgKCAQEAzdl78AR14EofTshBTIp14RqR2icHgTio01GQkm4nMBRm7Ww1lsAsZOAg
UV7W48NwMJIbOtPTPGAymTrYa+/qgnFyeyFA9ybL5J0DH2jKg5ycioGad9xiHfbA
wdDOJXODIeWK8hIpuHYRRulrQ1Vvoch8q928LZSC2BvP+obEBp/Tr9wsfUynfdiD
TfIn7T1/+iTYfXBxAGViB0UqQn9z+9JlC8nAat0wz2+V6ufXfi2ui6gEEtgx4Jcc
c3rpJrcGyXXqAWSFTzSB/J8VjosMd60fZXArrAde0Pmvw8ziveN8xsrgedfXhItO
P48sU0ytHwaFq2B4IfGI9N1xGA5bewIDAQABo4ICFTCCAhEwDgYDVR0PAQH/BAQD
AgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAA
MB0GA1UdDgQWBBR5m1Ac09VzkOsNUoUVceI9aDRj3DAfBgNVHSMEGDAWgBQULrMX
t1hWy65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0
dHA6Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVu
Y3Iub3JnLzAfBgNVHREEGDAWghRkdWNrcmVmcy51b3JlZ29uLmVkdTATBgNVHSAE
DDAKMAgGBmeBDAECATCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1ADtTd3U+LbmA
ToswWwb+QDtn2E/D9Me9AA0tcm/h+tQXAAABjfl1eVMAAAQDAEYwRAIgEV9QIgwE
L6g0NxxhV5aTyiwamt3GMF1JgJAvPXZsPKECIFcOBqSkQdy2xbOlmUROPfjGQaqy
OPGD+ZiJ/cHaZoOQAHYAouK/1h7eLy8HoNZObTen3GVDsMa1LqLat4r4mm31F9gA
AAGN+XV5WwAABAMARzBFAiEA7EFALbI5ETJ3k4acPxwXA5/CjPcWNpvzYVFLUK6V
ijwCIA3sGksTnHumTOHbMFLryT5TCLmRppy0lCFaJ0HTrWehMA0GCSqGSIb3DQEB
CwUAA4IBAQCuwuZlnlPXn7uxH3uymQ9Vb4caAL7wjE/PjCuW7EPnEQClJTyQX26Q
M388+9fFFNkWM60/Sxdim4ksuMKbdFpW9bYyCRpXP6U931iuQ7Soaq2hBLJw0d7T
WZkZcEQBJCKFMBONkRVeGewYAy3KMN3ypI6+sjPKmwl3aySTZnQapmFTHE7Dr4IX
YMGDYh7vHR3v1ubFFdyuEIWTt/8bBSo1at3cWpJviorbAgmRd++hKZFAa7+xezyh
Oeym00xP+YdO3/h5b90SYI0kegWTFp5xFkw2FULEezhhtOrVEv6USMkoJ+eg0yVN
/BYj3xTOUoMYHGNoUM0sr+yVjmIye9Ot
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzdl78AR14EofTshBTIp1
4RqR2icHgTio01GQkm4nMBRm7Ww1lsAsZOAgUV7W48NwMJIbOtPTPGAymTrYa+/q
gnFyeyFA9ybL5J0DH2jKg5ycioGad9xiHfbAwdDOJXODIeWK8hIpuHYRRulrQ1Vv
och8q928LZSC2BvP+obEBp/Tr9wsfUynfdiDTfIn7T1/+iTYfXBxAGViB0UqQn9z
+9JlC8nAat0wz2+V6ufXfi2ui6gEEtgx4Jccc3rpJrcGyXXqAWSFTzSB/J8VjosM
d60fZXArrAde0Pmvw8ziveN8xsrgedfXhItOP48sU0ytHwaFq2B4IfGI9N1xGA5b
ewIDAQAB
-----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 354463782993851543722352769483079687467684
 . . . . . . . . [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 2024-03-01 09:00:41 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-30 09:00:40 +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 'duckrefs.uoregon.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 25986097940191494799597890509266402914858773481186537366081875949836582247225308832776028670666157032516200660480134303932283109621454535703166494812124670539287572572710698225678553776176842904427160517699377625642684364219754810794512611212910696312611418903900145223358051642748138122107640073399898484837783647261898806366894142768428480441025951711099184619168373759871378357788883143712414628411753100337209755880051654356649842564055914313047796011434443552223866267156222703481425706890190870071189574517986248865795008674441329026234413053842948969185434320161324974829819964532157209202974558863381534497659
 . . . . . . . . . . . . . . . . . . . . [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)
							799b501cd3d57390eb0d52851571e23d683463dc
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'duckrefs.uoregon.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)
							00ef0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018df975795300000403004630440220115f50220c042fa834371c61579693ca2c1a9addc6305d4980902f3d766c3ca10220570e06a4a441dcb6c5b3a599444e3df8c641aab238f183f99889fdc1da668390007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018df975795b0000040300473045022100ec41402db23911327793869c3f1c17039fc28cf716369bf361514b50ae958a3c02200dec1a4b139c7ba64ce1db3052ebc93e5308b991a69cb494215a2741d3ad67a1
 . . . . [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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