Re: 8 byte key for 3DES

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"Mark Rae" <mark@xxxxxxxxxxxxxxxxx> wrote in message
news:eaoFG%235LHHA.4992@xxxxxxxxxxxxxxxxxxxxxxx
"tshad" <tscheiderich@xxxxxxxxxxxxxxx> wrote in message
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I was told that you need a 16 byte key.

Who told you that...? Not me, certainly!

Your key can be pretty much any length...
No, it wasn't you. I saw somewhere that for 3DES the key length was
supposed to be 16 or more.

Also, I did a test on that MD5/SHA1 problem and apparently the line:

des.Key = pdb.CryptDeriveKey("TripleDES", "MD5", 168, New Byte(7) {})

will give me the same results as:

des.Key = pdb.CryptDeriveKey("TripleDES", "SHA1", 168, New Byte(7) {}).

I used the first one to encrypt my string and then the 2nd one to decrypt it
and got the correct result.

I assume that there is a bug in the CryptDeriveKey function.

Thanks,

Tom


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