Dec 21, 2005 #1 S senthilvadivu Newbie level 1 Joined Nov 24, 2005 Messages 0 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,280 Activity points 1,303 Hi, I am not sure if this is a right forum to ask this. how to calculate (x + 1) mod (x³ + 1) am giving small values but actually i want to know the procedure to take poly. Thanks
Hi, I am not sure if this is a right forum to ask this. how to calculate (x + 1) mod (x³ + 1) am giving small values but actually i want to know the procedure to take poly. Thanks
Dec 21, 2005 #2 V vadkudr Advanced Member level 4 Joined Jul 12, 2005 Messages 108 Helped 15 Reputation 30 Reaction score 4 Trophy points 1,298 Activity points 2,236 The resul will be (x+1) because its degree is less than degree of polynomial (x^3+1) For example x^5+x^4 +x^2+1(mod(x^3+1))=-x^2-x+x^2+1=-x+1 Algorithm is dividing polynomials, it is similar to algorithm of dividing real numbers See R.Blahut "Art of Error Correcting Codes" or similar books
The resul will be (x+1) because its degree is less than degree of polynomial (x^3+1) For example x^5+x^4 +x^2+1(mod(x^3+1))=-x^2-x+x^2+1=-x+1 Algorithm is dividing polynomials, it is similar to algorithm of dividing real numbers See R.Blahut "Art of Error Correcting Codes" or similar books
Dec 22, 2005 #3 S senthilvadivu Newbie level 1 Joined Nov 24, 2005 Messages 0 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,280 Activity points 1,303 Hi , Thanks for reply. I didnot mention one thing. THis is in galois field. i want to know the ans and procedure for this. (x^4 + x^3 + x^2 + x + 1) mod (x^8 + 1) in GF(2 ^ 8) Thanks Senthil
Hi , Thanks for reply. I didnot mention one thing. THis is in galois field. i want to know the ans and procedure for this. (x^4 + x^3 + x^2 + x + 1) mod (x^8 + 1) in GF(2 ^ 8) Thanks Senthil