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Fixed issue which stopped Montgomery & Classical reduction from being used

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git-svn-id: svn://svn.code.sf.net/p/axtls/code/trunk@41 9a5d90b5-6617-0410-8a86-bb477d3ed2e3
This commit is contained in:
cameronrich
2006-11-27 05:52:33 +00:00
parent c98ded2eca
commit 3c59f849dd
4 changed files with 33 additions and 12 deletions
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13
ssl/bigint.c
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@@ -734,8 +734,8 @@ void bi_set_mod(BI_CTX *ctx, bigint *bim, int mod_offset)
#if defined(CONFIG_BIGINT_MONTGOMERY)
/* set montgomery variables */
R = comp_left_shift(bi_clone(ctx, ctx->bi_radix), k-1); /* R */
R2 = comp_left_shift(bi_clone(ctx, ctx->bi_radix), k*2-1); /* R^2 */
R = comp_left_shift(bi_clone(ctx, ctx->bi_radix), k-1); /* R */
R2 = comp_left_shift(bi_clone(ctx, ctx->bi_radix), k*2-1); /* R^2 */
ctx->bi_RR_mod_m[mod_offset] = bi_mod(ctx, R2); /* R^2 mod m */
ctx->bi_R_mod_m[mod_offset] = bi_mod(ctx, R); /* R mod m */
@@ -743,10 +743,11 @@ void bi_set_mod(BI_CTX *ctx, bigint *bim, int mod_offset)
bi_permanent(ctx->bi_R_mod_m[mod_offset]);
ctx->N0_dash[mod_offset] = modular_inverse(ctx->bi_mod[mod_offset]);
#elif defined (CONFIG_BIGINT_BARRETT)
ctx->bi_mu[mod_offset] =
bi_divide(ctx, comp_left_shift(
bi_clone(ctx, ctx->bi_radix), k*2-1), ctx->bi_mod[mod_offset], 0);
bi_clone(ctx, ctx->bi_radix), k*2-1), ctx->bi_mod[mod_offset], 0);
bi_permanent(ctx->bi_mu[mod_offset]);
#endif
}
@@ -1383,10 +1384,10 @@ bigint *bi_mod_power(BI_CTX *ctx, bigint *bi, bigint *biexp)
if (!ctx->use_classical)
{
/* preconvert */
bi = bi_residue(ctx,
bi_multiply(ctx, bi, ctx->bi_RR_mod_m[mod_offset])); /* x' */
bi = bi_mont(ctx,
bi_multiply(ctx, bi, ctx->bi_RR_mod_m[mod_offset])); /* x' */
bi_free(ctx, biR);
biR = ctx->bi_R_mod_m[mod_offset];
biR = ctx->bi_R_mod_m[mod_offset]; /* A */
}
#endif