Timeline for Splitting text before Format Preserving Encryption operation
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Nov 23, 2019 at 16:39 | vote | accept | ixe013 | ||
| Nov 23, 2019 at 16:32 | comment | added | Maarten Bodewes♦ | Yep, that sounds about right, I think you've got the gist. | |
| Nov 23, 2019 at 13:50 | comment | added | ixe013 |
So with b = 26^3*10^3, I would convert to base b, encrypt, and convert back to base b to get the encrypted value in the right "human readable" or "format preserved" format. This can be extended to support arbitratry alphabets, like Quebec medicare digits that hides the birth sex in month number (+50 if female, so alphabet for first digit of month is 0,1,5,6).
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| Nov 22, 2019 at 3:08 | history | edited | Maarten Bodewes♦ | CC BY-SA 4.0 |
added 185 characters in body
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| Nov 22, 2019 at 2:59 | history | edited | Maarten Bodewes♦ | CC BY-SA 4.0 |
added 1 character in body
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| Nov 22, 2019 at 2:39 | history | answered | Maarten Bodewes♦ | CC BY-SA 4.0 |