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use 486662 for A

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orignal 2019-12-05 16:13:59 -05:00
parent df1aa52e08
commit 2877900233
1 changed files with 5 additions and 9 deletions
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14
libi2pd/Elligator.cpp
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@ -23,11 +23,6 @@ namespace crypto
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
}; };
static const uint8_t A_[32] =
{
0x06, 0x6d, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const uint8_t u_[32] = static const uint8_t u_[32] =
{ {
@ -35,17 +30,18 @@ namespace crypto
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
}; };
#define decode_bytes(x) { x = BN_new (); BN_bin2bn (x##_, 32, x); } #define decode_bytes(x) { x = BN_new (); BN_bin2bn (x##_, 32, x); } // TODO: endianess
Elligator2::Elligator2 () Elligator2::Elligator2 ()
{ {
decode_bytes (p); decode_bytes (p);
decode_bytes (n1); decode_bytes (n1);
decode_bytes (n2); decode_bytes (n2);
decode_bytes (A);
decode_bytes (u); decode_bytes (u);
A = BN_new (); BN_set_word (A, 486662);
BN_CTX * ctx = BN_CTX_new (); BN_CTX * ctx = BN_CTX_new ();
BN_mod_inverse (iu, u, p, ctx); iu = BN_new (); BN_mod_inverse (iu, u, p, ctx);
BN_CTX_free (ctx); BN_CTX_free (ctx);
} }