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-rw-r--r--libtommath/etc/drprime.c64
1 files changed, 0 insertions, 64 deletions
diff --git a/libtommath/etc/drprime.c b/libtommath/etc/drprime.c
deleted file mode 100644
index c7d253f..0000000
--- a/libtommath/etc/drprime.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* Makes safe primes of a DR nature */
-#include <tommath.h>
-
-int sizes[] = { 1+256/DIGIT_BIT, 1+512/DIGIT_BIT, 1+768/DIGIT_BIT, 1+1024/DIGIT_BIT, 1+2048/DIGIT_BIT, 1+4096/DIGIT_BIT };
-int main(void)
-{
- int res, x, y;
- char buf[4096];
- FILE *out;
- mp_int a, b;
-
- mp_init(&a);
- mp_init(&b);
-
- out = fopen("drprimes.txt", "w");
- for (x = 0; x < (int)(sizeof(sizes)/sizeof(sizes[0])); x++) {
- top:
- printf("Seeking a %d-bit safe prime\n", sizes[x] * DIGIT_BIT);
- mp_grow(&a, sizes[x]);
- mp_zero(&a);
- for (y = 1; y < sizes[x]; y++) {
- a.dp[y] = MP_MASK;
- }
-
- /* make a DR modulus */
- a.dp[0] = -1;
- a.used = sizes[x];
-
- /* now loop */
- res = 0;
- for (;;) {
- a.dp[0] += 4;
- if (a.dp[0] >= MP_MASK) break;
- mp_prime_is_prime(&a, 1, &res);
- if (res == 0) continue;
- printf("."); fflush(stdout);
- mp_sub_d(&a, 1, &b);
- mp_div_2(&b, &b);
- mp_prime_is_prime(&b, 3, &res);
- if (res == 0) continue;
- mp_prime_is_prime(&a, 3, &res);
- if (res == 1) break;
- }
-
- if (res != 1) {
- printf("Error not DR modulus\n"); sizes[x] += 1; goto top;
- } else {
- mp_toradix(&a, buf, 10);
- printf("\n\np == %s\n\n", buf);
- fprintf(out, "%d-bit prime:\np == %s\n\n", mp_count_bits(&a), buf); fflush(out);
- }
- }
- fclose(out);
-
- mp_clear(&a);
- mp_clear(&b);
-
- return 0;
-}
-
-
-/* $Source$ */
-/* $Revision$ */
-/* $Date$ */