implement galois polynomial mod

[Parfa]

Hi, I am quite new in VHDL, I Would like to ask if anybody could help me with implementing an synthesizable modulo operator between a fixed sized (128 bits) galois polynomial and a variable sized (8-128 bits) galois polynomial.

 

[glen herrmannsfeldt]

Parfa <arfanis.panagiotis@gmail.com> wrote:

Hi, I am quite new in VHDL,
I Would like to ask if anybody could help me with implementing
an synthesizable modulo operator between a fixed sized (128 bits)
galois polynomial and a variable sized (8-128 bits) galois polynomial.

Probably not, but it is important to know how fast it has to
be, and whether or not it can be pipelined.

-- glen

 

[Parfa]

Τη Τρίτη, 4 Αυγούστου 2015 - 7:57:06 μ.μ. UTC+3, ο χρήστης Parfa έγραψε:
> Hi, I am quite new in VHDL, I Would like to ask if anybody could help me with implementing an synthesizable modulo operator between a fixed sized (128 bits) galois polynomial and a variable sized (8-128 bits) galois polynomial.

Is something like "Reed Solomon Encoder" the answer?

 

[Brian Drummond]

On Tue, 04 Aug 2015 12:29:57 -0700, Parfa wrote:

Τη Τρίτη, 4 Αυγούστου 2015 - 7:57:06 μ.μ. UTC+3, ο χρήστης Parfa έγραψε:
Hi, I am quite new in VHDL, I Would like to ask if anybody could help
me with implementing an synthesizable modulo operator between a fixed
sized (128 bits) galois polynomial and a variable sized (8-128 bits)
galois polynomial.

Is something like "Reed Solomon Encoder" the answer?

At this level, the question has nothing whatsoever to do with VHDL, so
find generic answers (not language-specific) to the question.
Actually translating from a proven answer into VHDL is likely to be
relatively easy, so don't worry about VHDL yet.

Any questions about that translation are likely to be answerable here.

-- Brian