aboutsummaryrefslogtreecommitdiffstats
path: root/moon-abe/pbc-0.5.14/arith/fp.c
diff options
context:
space:
mode:
Diffstat (limited to 'moon-abe/pbc-0.5.14/arith/fp.c')
-rw-r--r--moon-abe/pbc-0.5.14/arith/fp.c49
1 files changed, 0 insertions, 49 deletions
diff --git a/moon-abe/pbc-0.5.14/arith/fp.c b/moon-abe/pbc-0.5.14/arith/fp.c
deleted file mode 100644
index e0127a8e..00000000
--- a/moon-abe/pbc-0.5.14/arith/fp.c
+++ /dev/null
@@ -1,49 +0,0 @@
-// F_p initialization.
-//
-// Specific implementations of F_p are found in naivefp.c, fastfp.c, fasterfp.c
-// and montfp.c. For pairing-based cryptosystems, montfp.c is the fastest.
-// I keep all versions around for testing, and also to show off the modularity
-// of the code.
-
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdint.h> // for intptr_t
-#include <gmp.h>
-#include <string.h>
-#include "pbc_utils.h"
-#include "pbc_field.h"
-#include "pbc_fp.h"
-
-// By default, use the montfp.c implementation of F_p. After
-// pbc_tweak_use_fp(), future field_init_fp calls will use the specified
-// implementation. This is useful for benchmarking and testing.
-static void (*option_fpinit) (field_ptr f, mpz_t prime) = field_init_mont_fp;
-
-void pbc_tweak_use_fp(char *s) {
- if (!strcmp(s, "naive")) {
- option_fpinit = field_init_naive_fp;
- } else if (!strcmp(s, "fast")) {
- option_fpinit = field_init_fast_fp;
- } else if (!strcmp(s, "faster")) {
- option_fpinit = field_init_faster_fp;
- } else if (!strcmp(s, "mont")) {
- option_fpinit = field_init_mont_fp;
- } else {
- pbc_error("no such Fp implementation: %s", s);
- }
-}
-
-void field_init_fp(field_ptr f, mpz_t modulus) {
- if (mpz_fits_ulong_p(modulus)) {
- // If this case mattered, I'd have written a F_p implementation specialized
- // for moduli that fits into machine words.
- field_init_naive_fp(f, modulus);
- } else {
- if (mpz_odd_p(modulus)) {
- option_fpinit(f, modulus);
- } else {
- // montfp.c only supports odd moduli.
- field_init_faster_fp(f, modulus);
- }
- }
-}