Collaborate Disseminate
I’m presently implementing a simple RSA-based encryption as follows in PHP (using openssl_public_encrypt):
// $sRawText is the text string to encrypt.
// $sPublicKey is the public key stored on the server.
openssl_public_encrypt($sRawText,… Continue reading Risks of Using SHA1 Instead of SHA256 for RSA OAEP Padding
I have a website in a shared hosting environment, and I’m also planning to back up in multiple locations. All of that introduces vulnerability where the data could get intercepted, stolen, or misused by authorized parties. The data isn’t a… Continue reading Getting Smaller Output From Public Key Cryptography In PHP
In cryptography, generally we have two ways of handling sensitive information.
We can use one-way encryption such as hashing. This is useful when we never need to retrieve it again. In this case, we can know if we found the right password,… Continue reading Encryption Algorithm With Separate One-Way (Hashing) And Two-Way (Decryption) Keys
I’m storing a list of email addresses and other not personally identifiable information for a mailing list in a database. Since it’s for a project related to cryptocurrency, I believe that the information could be a target for future attac… Continue reading What’s The Best PHP Encryption For Email Addresses?
I was going through the list of top 100K passwords and found Sojdlg123aljg near the top of the list. Does anyone have any idea why this is such a common password?
In my security course at university, we covered three components of network security, which were confidentiality, availability, or integrity. I’m putting together a presentation based around these 3 components, but my recolle… Continue reading If a message can be repeated, is that confidentiality, availability, or integrity?