cs50.net

Issued by Amazon

About this certificate

This digital certificate with serial number 0a:e1:a5:e4:0c:78:a1:fa:12:4b:24:21:e2:06:33:85 was issued on by Amazon.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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)

Certificate Subject

CN=cs50.net

Amazon

Organization: Amazon
Organization unit: Server CA 1B
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 0a:e1:a5:e4:0c:78:a1:fa:12:4b:24:21:e2:06:33:85
Serial Number (int): 14463911416484806853564198711170839429
Serial Number lenght: 124 bits, 16 octets

SubjectKeyId: 57:3d:0e:3c:6a:17:5d:d8:7c:5d:ae:8f:24:32:c9:e9:13:a0:c7:30
AuthorityKeyId: 59:a4:66:06:52:a0:7b:95:92:3c:a3:94:07:27:96:74:5b:f9:3d:d0

Fingerprint (sha1): b5:96:11:05:7d:ad:3c:29:33:28:d7:73:c6:c2:3f:ef:96:2e:24:7f
Fingerprint (sha256): 75:04:ec:f3:36:57:65:34:5a:bb:8f:29:a4:1e:ab:08:81:dc:47:02:eb:3d:e9:74:f9:d0:78:80:c5:58:bb:11

Issuing Certificate URL: http://crt.sca1b.amazontrust.com/sca1b.crt

Revocation information

OCSP Server: http://ocsp.sca1b.amazontrust.com
CRL Distribution Point: http://crl.sca1b.amazontrust.com/sca1b.crl

Check the revocation status for certificate cs50.net

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cs50.net

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

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

cs50.net
*.cs50.net

Other certificates including the domain name cs50.net

(limited to 100 certificates)
www.3scale.net
www.3scale.net
ssl.smugmug.com
ap.cs50.school
docs.cs50.net
manual.cs50.net
discourse.cs50.net
ap.cs50.school
cs50.net
ap.cs50.school
www.3scale.net
ssl.smugmug.com
www.3scale.net
discourse.cs50.net
discourse.cs50.net
ap.cs50.school
docs.cs50.net
docs.cs50.net
docs.cs50.net
www.3scale.net
ap.cs50.school
ap.cs50.school
www.abphotoshots.us
ssl.smugmug.com
ap.cs50.school
ssl.smugmug.com
ap.cs50.school
ssl.smugmug.com
www.3scale.net
www.3scale.net
cs50.net
docs.cs50.net
cs50.io
docs.cs50.net
www.3scale.net
discourse.cs50.net
www.3scale.net
cs50.net
*.cs50.net
www.3scale.net
docs.cs50.net
ap.cs50.school
ssl.smugmug.com
www.3scale.net
discourse.cs50.net
www.3scale.net
www.3scale.net
manual.cs50.net
docs.cs50.net
ssl.smugmug.com
discourse.cs50.net
ap.cs50.school
ssl.smugmug.com
ap.cs50.school
manual.cs50.net
cs50.net
ap.cs50.school
ssl.smugmug.com
www.3scale.net
cs50.net
www.3scale.net
*.cs50.net
manual.cs50.net
ap.cs50.school
*.cs50.net
discourse.cs50.net
discourse.cs50.net
capture.cs50.net
ap.cs50.school
discourse.cs50.net
cs50.net
www.3scale.net
www.3scale.net
ap.cs50.school
*.cs50.net
www.3scale.net
manual.cs50.net
docs.cs50.net
draw.cs50.net
www.3scale.net
www.3scale.net
www.3scale.net
www.3scale.net
docs.cs50.net
ssl.smugmug.com
ap.cs50.school
docs.cs50.net
cs50.io
www.3scale.net
www.3scale.net
ssl.smugmug.com
cs50.harvard.edu
ssl.smugmug.com
cs50.net
www.3scale.net
discourse.cs50.net
docs.cs50.net
www.3scale.net
docs.cs50.net
ap.cs50.school

Certificate

The complete raw certificate details for cs50.net in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx6VCPNcgx6Vqc1EwmwVe
C5VpeBpAIafTzeErwyZiyw4aAfjQi/O8fS2YWr88DNE7hcNyDVZK0p3SqZxwdtEG
Zd270KtFJvUaY2FI5YD18jqQs7zf89YgoLDwCRXXypzThhLozCtXqlPZWrBwXNGS
HGJaZqYl6zL1tn+KdqCzUTc2LFJ2NvnkUjsEkElJiR3suBaxdPvkcGHGq3+wdThn
/wkW7tPx9OjU7B/+jOwgjWtxIi+LoKRUF8B4QpLPEDgVom0uqpFT/yC7fKGBhPmb
gBQUfBsMGakKROBPSWI1k21xBpknkXUFvdF78Mjme/HDBAXxXSAcV/12Rx2kRewk
hwIDAQAB
-----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 14463911416484806853564198711170839429
 . . . . . . . . [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 'Amazon'
 . . . . . . . . . . . . [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 'Server CA 1B'
 . . . . . . . . . . . . [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 'Amazon'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-22 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2021-04-22 12:00:00 +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 'cs50.net'
 . . . . . . . . [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 25202914810611782765682835075937540453983373125774870510432114262211707996060860058598783873746663757006814378942693553143369918033463341083621892351772258415141242115010198575699218482950053762297541685995806477450432951729346109791159174706373009459917713456912420914282895651350940993221477067075327635612365077249272828909664165653046544619086234004041837229393863041185224690609912265074315989030767894900821356776038564649237482866145507966082760969596409681398047503029911861726415898059756575579454707425758961672854068433491099551162126139351621730909710603900137132529693693499098613099987222084481308173447
 . . . . . . . . . . . . . . . . . . . . [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 59a4660652a07b95923ca394072796745bf93dd0
 . . . . . . . . . . . . . . . . [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)
							573d0e3c6a175dd87c5dae8f2432c9e913a0c730
 . . . . . . . . . . . . . . . . [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 'cs50.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.cs50.net'
 . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (52 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.sca1b.amazontrust.com/sca1b.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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.840.1.114412.1.2 (digiCertDVCert)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (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 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.sca1b.amazontrust.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://crt.sca1b.amazontrust.com/sca1b.crt'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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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