Mirrors/i2pd
2
0
Fork 0
mirror of https://github.com/PurpleI2P/i2pd.git synced 2025-02-02 11:04:00 +01:00
Code Issues Actions 6 Packages Projects Releases Wiki Activity

second x25519 for new session reply

Browse source
This commit is contained in:
orignal 2020-01-30 19:30:30 -05:00
parent 239c8b5172
commit 85b88b8749
1 changed files with 7 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
libi2pd/ECIESX25519AEADRatchetSession.cpp
View file

@ -244,6 +244,8 @@ namespace garlic
MixHash (m_EphemeralKeys.GetPublicKey (), 32); // h = SHA256(h || bepk)
uint8_t sharedSecret[32];
m_EphemeralKeys.Agree (m_Aepk, sharedSecret); // sharedSecret = x25519(besk, aepk)
i2p::crypto::HKDF (m_CK, sharedSecret, 32, "", m_CK, 32); // chainKey = HKDF(chainKey, sharedSecret, "", 32)
m_EphemeralKeys.Agree (m_RemoteStaticKey, sharedSecret); // sharedSecret = x25519(besk, apk)
i2p::crypto::HKDF (m_CK, sharedSecret, 32, "", m_CK); // [chainKey, key] = HKDF(chainKey, sharedSecret, "", 64)
uint8_t nonce[12];
memset (nonce, 0, 12); // n = 0
@ -290,6 +292,8 @@ namespace garlic
MixHash (bepk, 32); // h = SHA256(h || bepk)
uint8_t sharedSecret[32];
m_EphemeralKeys.Agree (bepk, sharedSecret); // sharedSecret = x25519(aesk, bepk)
i2p::crypto::HKDF (m_CK, sharedSecret, 32, "", m_CK, 32); // chainKey = HKDF(chainKey, sharedSecret, "", 32)
GetOwner ()->Decrypt (bepk, sharedSecret, nullptr); // x25519 (ask, bepk)
i2p::crypto::HKDF (m_CK, sharedSecret, 32, "", m_CK); // [chainKey, key] = HKDF(chainKey, sharedSecret, "", 64)
uint8_t nonce[12];
memset (nonce, 0, 12); // n = 0