On 8/21/2012 7:17 AM, Matt Caswell wrote:
On 21 August 2012 12:00, Tarun Thakur wrote:
Output of my software application (after encryption and encoding with
any mechanism) should be of 24 bytes containing alphanumeric
characters only.
So, if I get encrypted 24 bytes from plain 24bytes, then
which encoding mechanism can convert encrypted 24bytes into
alphanumeric encoded 24bytes?
That is impossible. No encoding mechanism can do that.
To do the impossible :-), research FPE - format preserving encryption.
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