Abstract: The invention creates a single use authentication code from (1) predefined unencrypted data from at least one tax form, (2) primary keys, and (3) a secondary key generated from metadata correlated to the input of the unencrypted data, the above elements being used by a data encryption circuit having a polynomial integer encryption (PIE) engine, to generate the authentication code. The authentication code is translated into at least one symbol, using, for example, barcode technology, and applied to a tax document or form or otherwise encoded into electronic documents. (4) the IRS SENTENAL Key/Code alphanumeric characters are stored from the previous year(s), and applied in the preamble of the secure authentication transmission; and/or in the subsequent year of tax filing form(s).

Abstract: The invention creates a single use authentication code from (1) predefined unencrypted data from at least one tax form, (2) primary keys, and (3) a secondary key generated from metadata correlated to the input of the unencrypted data, the above elements being used by a data encryption circuit having a polynomial integer encryption (PIE) engine, to generate the authentication code. The authentication code is translated into at least one symbol, using, for example, barcode technology, and applied to a tax document or form or otherwise encoded into electronic documents.

Abstract: The invention creates a single use authentication code from (1) predefined unencrypted data from at least one tax form, (2) primary keys, and (3) a secondary key generated from metadata correlated to the input of the unencrypted data, the above elements being used by a data encryption circuit having a polynomial integer encryption (PIE) engine, to generate the authentication code. The authentication code is translated into at least one symbol, using, for example, barcode technology, and applied to a tax document or form or otherwise encoded into electronic documents.