Archives for encryption - Page 3
Troubleshooting SSL certificates
Also read SSL Certificate Basics Is SSL active? SSL Checker SSL Checker Validation Methods - DNS vs HTTP SSL Labs: SSL Labs is most helpful for cryptographic issues on an…
RSA public and private key lengths
The Modulus defines the length An RSA key length is the length, in bits, of the modulus. An RSA key that has length "2048", is generated from a modulus that…
Secrecy versus Privacy in RSA based Schemes
RSA is a scheme that can be used for two purposes. Secrecy - Encrypting in transit data - Data Encryption. This is the basis for all certificate based data encryption…
SSL and TLS Certificate Basics
What IS a Certificate? (Also read, Web Server Considerations for Hosting SSL Certificates ) It is a mapping of an entity name (organization or individual) to a PUBLIC KEY. How…
Kerberos versus SSL
Kerberos does not require a session. The TGT (Ticket Granting Ticket) system allows for a session less protocol SSL of course, does establish a session before sending any data. …
Certbot with Apache
certbot and apache Prelim Concepts A .pfx file is a PKCS#12 archive. Typically, a PKCS#12 archive contains a certificate (possibly with its assorted set of CA certificates) and the corresponding private key. A .cert (or .cer or .crt)…
Letsencrypt Certbot on Amazon ec2 linux – LetsEncrypt Client Install – What a headache
At first glance, finding AWS's exact documentation on how to get this working, may excite you. Until you find that you encounter the same error that you would get were…
PKI and a regular https browser session
What is PKI used for? PKI is used for two things - one that you may be familiar with (encryption of data in transit) - and another that you may…
Troubleshooting letsencrypt and certbot
On Linux - once installed, look for certbot using ls -l /bin /usr/bin | grep certbot OR just grep certbot If you get a result, you should see the certbot…
Github and SSH authentication – Generate a key pair using gitbash
Github uses SSH for authentication only. It is important to understand that it doesn't use SSH for encrypting data back and forth. Download the entire git for windows package here.…