Collaborate Disseminate
An encrypted ext4 container will always leak the superblock information.
So encrypting an unencrypted metadata file system like ext4 is inherently vulnerable because it instaleaks?
Shouldn’t it then be an absolute requirement to do at le… Continue reading Always leaking ext4 superblock
We are considering using the Soundex algorithm to improve our search capabilities in our app.
Our app data are encrypted in the DB. (EAS256)
The Soundex result will be stored in clear next to our encrypted data.
In fact, the Soundex calcul… Continue reading Soundex and encryption : good friend?
Imagine the scene: You’re puttering along in your vehicle when, at least an hour from the nearest help, one of your tires starts losing air. Not to worry! You’ve got …read more Continue reading Martian Wheel Control Algorithms Gain Traction
Measuring air quality at any particular location isn’t too complicated. Just a sensor or two and a small microcontroller is generally all that’s needed. Predicting the upcoming air quality is …read more Continue reading Weather Station Predicts Air Quality
I am working on an application which has a requirement to send very small messages (<64 bits), asynchronously, and using secure asymmetric encryption. We’ve experimented with simple RSA + OAEP, and it is workable, but with the caveat th… Continue reading Asymmetric encryption of very small messages
While NIST mentions only the hashing algorithms for use in cryptography, there is lack of clarity specifically for password hashing algorithms.
Does anyone know are there any algorithms approved by NIST for password hashing?
Also, I could … Continue reading support for adaptive password hashing algorithms [closed]
I know MD5 is no longer secure, but is there an algorithm running in polynomial time to find preimages of a given hash, or is it just bruteforce?
Continue reading Is there a well-defined algorithm to find preimages in MD5?
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
Take an example of AIDE (Advanced Intrusion Detection Environment), it has a capability to scan system file changes based on checksum.
So in AIDE you can see it has this kind of configuration setting in /etc/aide/aide.conf that we can set … Continue reading What is the purpose of using different hash algorithm to detect file changes [duplicate]
I’m working on a API which is serving content based on user requests. What I’d like to achieve is as follows: Having a constant key stored both on the server and the client machine (as a means of identifying a specific user) I’d like to be… Continue reading One-way cryptographic algorithm with distinct output and verifiable property