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Nov
16
answered applications of linear algebra to “security”?
Nov
14
answered Is it safe to use a weak password as long as I have two-factor authentication?
Nov
8
answered User authentication + database encryption with same password
Nov
7
reviewed Reviewed Passwords In Securing Network Devices
Nov
7
revised Encryption in an embeddded system
Added solution for if you assume the firmware is not modifiable
Nov
7
comment Encryption in an embeddded system
If you assume that the attacker cannot modify the firmware then all you need to do is sign the file using RSA with PKCS#1 padding (which is good enough for your needs). sourceforge.net/projects/tplockbox has Delphi code for this; OpenSSL has C code. Since the information in the file (prices) is not secret there's no reason to encrypt the file.
Nov
7
revised Encryption in an embeddded system
Typo and wording
Nov
7
answered Encryption in an embeddded system
Nov
5
reviewed Reviewed How do you log in from an unsecured computer?
Nov
5
reviewed Reviewed Attacks surrounding /etc/hosts/
Nov
5
awarded  Custodian
Nov
5
reviewed Reviewed How do you log in from an unsecured computer?
Nov
5
reviewed Reviewed Which ports are potential security risks for nmap?
Nov
4
comment Should Stack Exchange be more obscure in its systems' structure?
As @RoryMcCune wrote in his response to security.stackexchange.com/questions/2430/…, obscurity shouldn't be relied on for security but there are situations where obscurity is good as an extra layer on an otherwise properly secured system. Obscurity isn't bad in itself - it's bad only if it is used to hide the fact that the system is otherwise not secure.
Nov
4
comment What is SHA-3 and why did we change it?
@PaŭloEbermann Sure.
Nov
4
answered When using symmetric key encryption, do we need to sign?
Nov
4
answered Possible to prevent Juice Jacking by only connecting USB pins 1 & 4?
Nov
3
awarded  Nice Answer
Nov
1
revised Practices for storing username/password in Web applications
typo fix
Nov
1
reviewed Reviewed Different Security Issues Depending on OS?