Re: Looking for a security/encryption programmer for small contract

2008-02-05 Thread Francis
Lets say I use pycrypto with AES, like this. obj = AES.new('mykey', AES.MODE_CFB) mytext = "Big secret" cipher = obj.encrypt(mytext) Can I use the same key or I have to change it everytime? Would this be sufficiently secure? Francis On 23 jan, 11:25, Francis <[EMAIL PROTECTED]> wrote: > Hi, >

Re: Looking for a security/encryption programmer for small contract

2008-02-01 Thread Tim Chase
> Emanuele, your said : As for safety, nothing is safer than OTP, but > are we sure that your customer > is able to go to great lengths to distribute long key streams over a > perfectly safe channel to the sales representatives? > > Isn't the encrypted string secure? > > The method to send the s

Re: Looking for a security/encryption programmer for small contract

2008-01-31 Thread Francis
Hi, Thank you for all the information, it seems like you think it easy to do, as everyone accept to help me for free :-) The solution used before was to send to encrypted string in clear in a email. It used a perl impletation of the one-time pad. Emanuele, your said : As for safety, nothing is

Re: Looking for a security/encryption programmer for small contract

2008-01-23 Thread Emanuele Pucciarelli
Dear Francis, > Only one person (or very limited group) will receive the encrypted > message by email. It will hold customer information need by the sale > rep. So no user will have to deal with the encrypted data. > > Server receive customer info -> encrypt critical info -> sent email to > sales

Re: Looking for a security/encryption programmer for small contract

2008-01-23 Thread Tim Chase
> i'll be honest, i don't know anyone who's ever used a one-time-pad ooh...terminology clarification: OTP = one-time password OTP = one-time pad The former is a common tool used for safely logging in over an insecure channel (such as using S/Key when logging into my OpenBSD box over telnet).

Re: Looking for a security/encryption programmer for small contract

2008-01-23 Thread Derek Anderson
i'll be honest, i don't know anyone who's ever used a one-time-pad outside of some military applications before we had computers everywhere. while the security is mathematically "perfect", it's so encumbering to implement that i consider it overall riskier. having to pass by courier gigs upo

Re: Looking for a security/encryption programmer for small contract

2008-01-23 Thread Francis
Only one person (or very limited group) will receive the encrypted message by email. It will hold customer information need by the sale rep. So no user will have to deal with the encrypted data. Server receive customer info -> encrypt critical info -> sent email to sales rep. sales rep. decrypt t

Re: Looking for a security/encryption programmer for small contract

2008-01-23 Thread Tim Chase
>>> - Take a message, encrypt it using a secure method (should be better >>> or equal than OTP), return the encrypted message. > > >> parties, Blowfish and DES3 are popular choices and likely to be > > just a point of fact: neither of these are >= to OTP. They're all strong cryptographically,

Re: Looking for a security/encryption programmer for small contract

2008-01-23 Thread Derek Anderson
Tim Chase wrote: >> What's need to be done : >> - Take a message, encrypt it using a secure method (should be better >> or equal than OTP), return the encrypted message. > > parties, Blowfish and DES3 are popular choices and likely to be just a point of fact: neither of these are >= to OTP. al

Re: Looking for a security/encryption programmer for small contract

2008-01-23 Thread Tim Chase
> I'm building a web application for one of my clients with django. But > I need to do something that I have never did before and I am somehow > really short on time to learn it. > > So I am looking for someone who has experience with encryption/ > security in python. It is to be incorporated int

Looking for a security/encryption programmer for small contract

2008-01-23 Thread Francis
Hi, I'm building a web application for one of my clients with django. But I need to do something that I have never did before and I am somehow really short on time to learn it. So I am looking for someone who has experience with encryption/ security in python. It is to be incorporated into my dj