Re: ECB, CBC, CFB, OFB, and when and where you would use them.

What Victor is (correctly) trying to say is that you have not yet defined the problem. encrypting each file is a possible solution. It is not the problem. What is your data, what is it's value, where does it exist over its life, who is the attacker, what is the access, what will the attacker

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

It is a development design, and support issue. They want to use what is native in the operating system. Since we are talking about solaris that makes it OpenSSL. David Gianndrea Senior Network Engineer Comsquared Systems, Inc. Email: [EMAIL PROTECTED] Web: www.comsquared.com Rich Salz

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

It is a development design, and support issue. They want to use what is native in the operating system. Since we are talking about solaris that makes it OpenSSL. Solaris bundles OpenSSL? I didn't know that; neat. Of course you still have to design, write, and maintain your own software built

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

I’m sorry guys, but I can't get into to much more detail. Both Victor, and Ken are correct, and we know those answers. After talking with our director of development yesterday, I may have convinced him to seek the help of someone who does crypto implementation for a living. Basically to have

ECB, CBC, CFB, OFB, and when and where you would use them.

I wonder if some one could point me to some high level document that would describe where, and when you would use ECB, CBC, CFB, OFB modes. I have some developers that are trying to include encryption into some code, and there seems to be some confusion among them. -- David Gianndrea Senior

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

On Tue, Oct 18, 2005 at 09:31:44AM -0400, David Gianndrea wrote: I wonder if some one could point me to some high level document that would describe where, and when you would use ECB, CBC, CFB, OFB modes. I have some developers that are trying to include encryption into some code, and there

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

In message [EMAIL PROTECTED] on Tue, 18 Oct 2005 09:31:44 -0400, David Gianndrea [EMAIL PROTECTED] said: dgianndrea I wonder if some one could point me to some high level dgianndrea document that would describe where, and when you would use dgianndrea ECB, CBC, CFB, OFB modes. I have some

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

Sorry I forgot to state that it is to encrypt file data on storage devices such as disks, and tapes. I agree with your statement of appearance, but im trying to get the folks the resources that they need to do it correctly. They are currently in the design, and spec phase of this, so now is the

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

On Tue, Oct 18, 2005 at 10:40:21AM -0400, David Gianndrea wrote: Sorry I forgot to state that it is to encrypt file data on storage devices such as disks, and tapes. I agree with your statement of appearance, but im trying to get the folks the resources that they need to do it correctly. They

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

Ok that is good info. What about just doing file level encryption. As an example you have a disk with a bunch of files, and it is only those files you would want encrypted, and the issue is more a confidentiality is required / media loss issue then a tamper issue? We are looking to use AES-256

RE: ECB, CBC, CFB, OFB, and when and where you would use them.

, and when and where you would use them. Ok that is good info. What about just doing file level encryption. As an example you have a disk with a bunch of files, and it is only those files you would want encrypted, and the issue is more a confidentiality is required / media loss issue then a tamper

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

On Tue, Oct 18, 2005 at 11:09:51AM -0400, David Gianndrea wrote: Ok that is good info. What about just doing file level encryption. As an example you have a disk with a bunch of files, and it is only those files you would want encrypted, and the issue is more a confidentiality is required /

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

Sorry Victor, Im not explaining it very well. Let me try again. What we need to do is to protect data from the point of view of ensuring that if the media it is on be that a hard drive, tape, or optical disk is encrypted. For our system that is best done by encrypting each file on a file by file

RE: ECB, CBC, CFB, OFB, and when and where you would use them.

why not uses pgp -- Rich Salz Chief Security Architect DataPower Technology http://www.datapower.com XS40 XML Security Gateway http://www.datapower.com/products/xs40.html __ OpenSSL Project

Re: ECB, CBC, CFB, OFB, and when and where you would use them.

On Tue, Oct 18, 2005 at 07:08:38PM -0400, Rich Salz wrote: why not uses pgp Indeed, but with any file-by-file encryption tool, one also needs to ask about the lifecycle of the plain-text pre-images and and working decrypted copies. It is very hard to not leak additional plain-text copies that