cs50.net

Issued by Amazon RSA 2048 M02

About this certificate

This digital certificate with serial number 09:a2:ec:6a:b6:42:28:4c:7d:bd:20:e1:4f:7a:17:1a 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
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 09:a2:ec:6a:b6:42:28:4c:7d:bd:20:e1:4f:7a:17:1a
Serial Number (int): 12808999156404824435447707013406660378
Serial Number lenght: 124 bits, 16 octets

SubjectKeyId: ed:13:de:6c:d8:3e:ea:2c:67:7d:8b:3f:87:55:4d:1f:5f:69:74:50
AuthorityKeyId: c0:31:52:cd:5a:50:c3:82:7c:74:71:ce:cb:e9:9c:f9:7a:eb:82:e2

Fingerprint (sha1): 8c:cc:c0:5c:6d:5a:61:fa:3e:05:a9:f7:63:10:18:8b:72:4a:0b:e7
Fingerprint (sha256): 0e:34:99:ab:2a:2e:9d:6b:fb:c0:e0:ed:6c:4e:29:49:1c:7a:99:6a:5c:7f:2d:4d:66:30:86:11:3c:b6:fc:97

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

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)

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9rltri3/IarPs2vgxyk+
QnHtk/RO7mC25INFgpuEZyIoSIlOXgw/29WTNQjeJ/T8tAOraXcRa36aI+yNsRYp
ImJvqSv0BNAcJIt9WPS4SeOUnoEn+iGnVyegiS2yrcWeYd9e2oA9v8xOT3oS/rom
W3kl526xb9m9UtnftR7Ey5dVpgl86jPu39FRWKcWLEsrpaxu2M9sH6CCqvIPOiez
cdePUcXtl6YWq1xFG1zmCtfudhqcmFjn+JFEW/0TF/BNuomjNA98Ryt1lPYAaZJf
tAT9WVlo1nNyUpo91lSGXJLNJkYXnYoFElI3kGWNtTpl6tw1oSnnhuf24lRAulce
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 12808999156404824435447707013406660378
 . . . . . . . . [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 2023-03-01 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-22 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 31146061192878943069107096914685963159325847558996075865067137480380059824437545057770566025602660801597844152586962339425610711208912998603187178288077777180238194480304304795532397109307604005973909626006696150889423435640300521257587799149980251186990546879886806970921523035373444050516884512006146815388334109260511401479385366155380263994881728731227089445096636086820404429248361476702192028076829859624333126963044343559771770138958004034228746456365725426361340902346934279253586174545901731339100133417815951060112509719931650434201270144231113969671525321614537036070386069329742038789434351122626911870587
 . . . . . . . . . . . . . . . . . . . . [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)
							ed13de6cd83eea2c677d8b3f87554d1f5f697450
 . . . . . . . . . . . . . . . . [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.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 (368 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (364 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN asn1: syntax error: invalid boolean
false
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:3|t:13|false]  
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 78916861615166879968526803354225448845830285309834359931379081794716967176061
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 92594061843686390217748614111420129352268319853000422125077511977079433299694
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:0|false] reserved for BER 
 . . . . [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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