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moved Noise initializations to Crypto.cpp

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orignal 2020-12-03 17:58:37 -05:00
parent ce14ea6fe5
commit 32fc6482cc
8 changed files with 71 additions and 58 deletions
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18
libi2pd/NTCP2.cpp
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@ -41,23 +41,7 @@ namespace transport
void NTCP2Establisher::KeyDerivationFunction1 (const uint8_t * pub, i2p::crypto::X25519Keys& priv, const uint8_t * rs, const uint8_t * epub)
{
static const uint8_t protocolNameHash[] =
{
0x72, 0xe8, 0x42, 0xc5, 0x45, 0xe1, 0x80, 0x80, 0xd3, 0x9c, 0x44, 0x93, 0xbb, 0x91, 0xd7, 0xed,
0xf2, 0x28, 0x98, 0x17, 0x71, 0x21, 0x8c, 0x1f, 0x62, 0x4e, 0x20, 0x6f, 0x28, 0xd3, 0x2f, 0x71
}; // SHA256 ("Noise_XKaesobfse+hs2+hs3_25519_ChaChaPoly_SHA256")
static const uint8_t hh[32] =
{
0x49, 0xff, 0x48, 0x3f, 0xc4, 0x04, 0xb9, 0xb2, 0x6b, 0x11, 0x94, 0x36, 0x72, 0xff, 0x05, 0xb5,
0x61, 0x27, 0x03, 0x31, 0xba, 0x89, 0xb8, 0xfc, 0x33, 0x15, 0x93, 0x87, 0x57, 0xdd, 0x3d, 0x1e
}; // SHA256 (protocolNameHash)
memcpy (m_CK, protocolNameHash, 32);
// h = SHA256(hh || rs)
SHA256_CTX ctx;
SHA256_Init (&ctx);
SHA256_Update (&ctx, hh, 32);
SHA256_Update (&ctx, rs, 32);
SHA256_Final (m_H, &ctx);
i2p::crypto::InitNoiseXKState (*this, rs);
// h = SHA256(h || epub)
MixHash (epub, 32);
// x25519 between pub and priv