cs50.net

Issued by Amazon RSA 2048 M02

About this certificate

This digital certificate with serial number 07:36:a3:2b:a0:ec:ca:94:a7:b4:4f:bc:13:64:8d:1e was issued on by Amazon.

With 4 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
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 07:36:a3:2b:a0:ec:ca:94:a7:b4:4f:bc:13:64:8d:1e
Serial Number (int): 9588289490235539862989213575971900702
Serial Number lenght: 123 bits, 16 octets

SubjectKeyId: bd:07:54:7a:c5:79:ef:5c:a3:a4:82:5b:34:9a:fd:cb:93:fd:38:bf
AuthorityKeyId: c0:31:52:cd:5a:50:c3:82:7c:74:71:ce:cb:e9:9c:f9:7a:eb:82:e2

Fingerprint (sha1): 2e:cd:7b:3b:54:4c:ef:b3:48:c3:1b:b6:d5:2d:2f:df:ec:97:b3:93
Fingerprint (sha256): d8:00:fb:d0:c4:48:f5:24:53:d8:b4:b5:25:f6:34:e5:eb:72:91:4c:3a:95:3b:5f:e3:e0:ef:82:94:84:b3:fb

Issuing Certificate URL: http://crt.r2m02.amazontrust.com/r2m02.cer

Revocation information

OCSP Server: http://ocsp.r2m02.amazontrust.com
CRL Distribution Point: http://crl.r2m02.amazontrust.com/r2m02.crl

Check the revocation status for certificate cs50.net

4

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.io
*.cs50.net
cs50.io

Other certificates including the domain name cs50.net

(limited to 100 certificates)

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvobJYaqKeFBQRsox3cwS
kShk3I1sv5U26h8CNz392Dx/Mn0B0fK7hVuLFv6wRhebUw4SxEaEj7LXE5NCdJvw
8cQyLNropuNAJJQwvJhXqeLznTdrrWux3mloH8EE9mbR58KwRQw6EBmsMb780Cnu
56Tabl89vp+JGsoCFgbdYLQIFs4Mosfpderdqv32ItGEOLoyUygFUkG8iUhHOAW/
RecRbPFeuBK50SXV4gYp+DuRGQe/M/PU+/l16lxTVe1Af/8Bur1O5vvD07KOS6Ec
DU1rVXJKFtQWNa0HOwlHM2yVjQy2Np72m0Hbl5JqFTCwNC4HA3B8Is1DcIcXyuqz
WwIDAQAB
-----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 9588289490235539862989213575971900702
 . . . . . . . . [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 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Amazon RSA 2048 M02'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-02-23 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-21 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 2.5.4.3 (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 24051743716162220982719626681785113486822703957589215704307026931523022910639217604219530670457184556091575492625424761029614731371963112694845609039940687072036551424499043187171982220966128180734325520812840005424848878396277021707939471808095685909762604367628067984012414779421869433018509990422660375039557029176844189231052854425606740439234440276572395608130027379721561670617532343625276049822481800138920413157615095710029552227588379155988483592181097150995804174742262116384448017953057780796109786952187554037059909928161302055304804017476462684275846997224661310974381591832561869086302506517921178235739
 . . . . . . . . . . . . . . . . . . . . [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 c03152cd5a50c3827c7471cecbe99cf97aeb82e2
 . . . . . . . . . . . . . . . . [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)
							bd07547ac579ef5ca3a4825b349afdcb93fd38bf
 . . . . . . . . . . . . . . . . [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 (44 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cs50.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.cs50.io'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.cs50.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cs50.io'
 . . . . . . . . . . . . . . . . [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.r2m02.amazontrust.com/r2m02.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 (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 1.3.6.1.5.5.7.1.1 (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.r2m02.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.r2m02.amazontrust.com/r2m02.cer'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (366 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (362 bytes)
							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
 . . . . [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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