T_FFELT to T

Семенов Петр on Wed, 07 Dec 2011 17:52:37 +0100

T_FFELT to T_VEC

To: pari-users@pari.math.u-bordeaux1.fr
Subject: T_FFELT to T_VEC
From: Семенов Петр <semenov.pk@gmail.com>
Date: Wed, 7 Dec 2011 20:52:30 +0400
Delivery-date: Wed, 07 Dec 2011 17:52:37 +0100
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Hello, all!

I have a problem:

1. I have an GF(2^r) element A, where GF(2^r) is extended finite field.

2. I want to get the coefficients of A when it is decomposing over GF(2^r) standard basis.

For example, for element a^5, where a is a primitive element of GF(4) ~ GF(2)[x]/<x^2 + x + 1>

I want to get a vector of coefficients: {1, 1}.

3. How can I do this? Problem is that A is a scalar

Thank you!

With best regards,

Piotr Semenov

Follow-Ups:
- Re: T_FFELT to T_VEC
  - From: Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>