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Excellent.
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Muy bueno, aunque también debería haber explicado como desencriptar...
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Nice one. Please show us some more.
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Kevin MacKay on
8/13/2009
Great video John. Thanks for the clear overview of Hashbytes.
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Louis Iacona on
8/13/2009
Pretty good overview of the mechanics, but you should have highlighted practical applications.
Storing / validating 1-way hash passwords?
What else?
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An example of what this would be used for (e.g. storing passwords) would have been helpful. I spent half the video trying to figure out why you would one way encrypt something. Once I got that figured out and rewatched it, it was excellent. Thanks
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Nice explanation of salt and hash
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Marc Moshman on
8/13/2009
What was the create table statement used for storing the hashbytes result? Other than that, excellent video.
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I wasn't aware of the HASHBYTE() function, so this is good. Thank you!
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Not sure of the usefulness of all of this. First, why would you encrypt something one way to start with? Secondly, why would you store the unencrypted value right next to it? Thirdly, what would happen if you lost the plain text or the Salt value?
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Ok, now I get it..hashing is not really encrytion. That was confusing me..hashing is one way and you do not need to know the users password to validate it. But when the data is hashed it becomes unrecoverable so this is not a useful strategy for storing credit card numbers. Because credit card numbers need to be encrypted, so that they can be unencrypted before they are used. The terms used in the video were a little confusing...
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Don't use this on a table that has a lot of rows in it. Big performance killer...
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You never gave a practical use for a one-way algorithm. Also, if all I know is the hashed value, is there a way to determine what algorithm was used?
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Do
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Sorry is there an equivalent of SHA256 in SQL server 2008 ??
Also is there an easy way of Encryption
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Good presentation and workaround in implementation.
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Good topic - subpar presentation.
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Edward Zann on
12/29/2009
Thanks, I learned something new today.
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Good..
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And with salting, what is the easiest method to extract hashed data?
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Excellent illustrations of HASHBYTES & salting. Thanks for sharing!
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Good!
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excellent demo!!!!
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What is the practical use of this??
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Dreadfully boring narrator...he should use a script if he is going to eh...hmmm...all the way through it. Content was good though...
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Nicely done, very easy to understand!
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Yes! That's great. I see where this is a good practice to follow.
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Nice video, I've personally never used this but I can see the value in it. Speaker sounded a little new to giving the presentation but he still did a great job. Props on that.
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Would like some more info on why one-way encryption would be helpful.
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Clayton Smith on
8/11/2010
Good video. Came across hashing etc in the .Net membership database, so it is good to see this stuff from another angle.
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No Create table in script. What field types were used for each field. The encrypted text look binary when type = Varchar. The example look like a hex value? why is that?
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excellent video
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I now understand this much much better.
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Good to know about encryption. What the video didn't explain is how to de-encrypt?
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Good vid.
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good demo. thanks.
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Should state when and why Hashbytes should be used.
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For author only: the content was very good, but you need inflection in your voice. Listen to the video - you'll hear what I mean. Thanks!
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I felt that the author overdid it on the zoom somewhat. I also felt that while this was an introduction to hashbytes, there was no effort to explain how this might be useful in your application/DB.
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I liked his examples and explanation but would like to know practical uses for this encryption other than for passwords.
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Excellent info.
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Excellent info.
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Hashbytes is not solely about encryption. It's also a more reliable method of generating checksum values because no two unique strings will generate the same hashbytes value whereas that is not guaranteed to be the case with checksum.
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Super! Short sharp and useful.
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Simple and clean way to demonstrate a funtion.
We so wish that ALL commands had a simple video like this to explan what they do, and demonstrate a usage!!
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chandrasekhar on
1/11/2012
very good
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interesting
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This would have been better with a tighter script.
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Very nice concept thank you very much for your demonstration, It really helps....
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still not up to speed with encryption
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great video i am going to implement that thing in our applicaton
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