How to make a message into a polynomial? I saw many answers to this question and

Question

How to make a message into a polynomial? I saw many answers to this question and yes, i know that here are some questions. But i did not get it. I think that i am making some mistakes. I took a word and just convert to binary-and here is my polynomial. I this that it is not correct, i am working with utf-8 (so example with ascii-7 not solution for me). I dont like to use a hybrid crypto ( with for example aes-think that these symmetric crypto are not secure), but i tried it-and i used a 128-bit key for aes and parameter N=503 for NTRU and this is not enough for me. Because i have key ( aes) for example 255 255 255 255 255 255 255 255 255 255 255 255 255 155 155 155 and i need these spaces- i am trying to create app for windows phone encrypt sms, so it need for correcting decrypt. So i think that i am not right and need your help. Help me understand how to correct in my case make a message into a polynomial and may be give some ideas for encrypting sms.

Explanation / Answer

What you are looking for is explicitly specified in the IEEE Standard 1363.1 [1], which covers NTRU. In particular, encoding a bit string into a polynomial is done in the following manner: Once you have processed the input message, you divide it into blocks of 3 bits, and transform each block in a pair of coefficients of a ternary polynomial according to a predefined table (described in 9.2.2.h of [1]):

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.