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Code Issues Releases Activity

clean montgomery context

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orignal 2016-04-12 19:07:11 -04:00
parent d15cc7cc47
commit c0b0df34d2
1 changed files with 6 additions and 3 deletions
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9
Crypto.cpp
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@ -163,19 +163,22 @@ namespace crypto
BN_CTX * ctx = BN_CTX_new (); BN_CTX * ctx = BN_CTX_new ();
g_MontCtx = BN_MONT_CTX_new (); g_MontCtx = BN_MONT_CTX_new ();
BN_MONT_CTX_set (g_MontCtx, elgp, ctx); BN_MONT_CTX_set (g_MontCtx, elgp, ctx);
auto montCtx = BN_MONT_CTX_new ();
BN_MONT_CTX_copy (montCtx, g_MontCtx);
for (int i = 0; i < len; i++) for (int i = 0; i < len; i++)
{ {
table[i][0] = BN_new (); table[i][0] = BN_new ();
if (!i) if (!i)
BN_to_montgomery (table[0][0], elgg, g_MontCtx, ctx); BN_to_montgomery (table[0][0], elgg, montCtx, ctx);
else else
BN_mod_mul_montgomery (table[i][0], table[i-1][254], table[i-1][0], g_MontCtx, ctx); BN_mod_mul_montgomery (table[i][0], table[i-1][254], table[i-1][0], montCtx, ctx);
for (int j = 1; j < 255; j++) for (int j = 1; j < 255; j++)
{ {
table[i][j] = BN_new (); table[i][j] = BN_new ();
BN_mod_mul_montgomery (table[i][j], table[i][j-1], table[i][0], g_MontCtx, ctx); BN_mod_mul_montgomery (table[i][j], table[i][j-1], table[i][0], montCtx, ctx);
} }
} }
BN_MONT_CTX_free (montCtx);
BN_CTX_free (ctx); BN_CTX_free (ctx);
} }