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publish offline signature

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orignal 2019-02-12 14:56:39 -05:00
parent a463dbc5fb
commit 72a239838e
5 changed files with 32 additions and 9 deletions
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26
libi2pd/LeaseSet.cpp
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@ -285,7 +285,7 @@ namespace data
uint16_t expires = bufbe16toh (buf + offset); offset += 2; // expires (seconds)
SetExpirationTime ((timestamp + expires)*1000LL); // in milliseconds
uint16_t flags = bufbe16toh (buf + offset); offset += 2; // flags
if (flags & 0x0001)
if (flags & LEASESET2_FLAG_OFFLINE_KEYS)
{
// transient key
m_TransientVerifier = ProcessOfflineSignature (identity, buf, len, offset);
@ -431,7 +431,7 @@ namespace data
uint16_t expires = bufbe16toh (buf + offset); offset += 2; // expires (seconds)
SetExpirationTime ((timestamp + expires)*1000LL); // in milliseconds
uint16_t flags = bufbe16toh (buf + offset); offset += 2; // flags
if (flags & 0x0001)
if (flags & LEASESET2_FLAG_OFFLINE_KEYS)
{
// transient key
m_TransientVerifier = ProcessOfflineSignature (blindedVerifier, buf, len, offset);
@ -579,16 +579,24 @@ namespace data
return ident.Verify(ptr, leases - ptr, leases);
}
LocalLeaseSet2::LocalLeaseSet2 (uint8_t storeType, std::shared_ptr<const IdentityEx> identity,
LocalLeaseSet2::LocalLeaseSet2 (uint8_t storeType, const i2p::data::PrivateKeys& keys,
uint16_t keyType, uint16_t keyLen, const uint8_t * encryptionPublicKey,
std::vector<std::shared_ptr<i2p::tunnel::InboundTunnel> > tunnels):
LocalLeaseSet (identity, nullptr, 0)
LocalLeaseSet (keys.GetPublic (), nullptr, 0)
{
auto identity = keys.GetPublic ();
// assume standard LS2
int num = tunnels.size ();
if (num > MAX_NUM_LEASES) num = MAX_NUM_LEASES;
m_BufferLen = identity->GetFullLen () + 4/*published*/ + 2/*expires*/ + 2/*flag*/ + 2/*properties len*/ +
1/*num keys*/ + 2/*key type*/ + 2/*key len*/ + keyLen/*key*/ + 1/*num leases*/ + num*LEASE2_SIZE + identity->GetSignatureLen ();
uint16_t flags = 0;
if (keys.IsOfflineSignature ())
{
flags |= LEASESET2_FLAG_OFFLINE_KEYS;
m_BufferLen += keys.GetOfflineSignature ().size ();
}
m_Buffer = new uint8_t[m_BufferLen + 1];
m_Buffer[0] = storeType;
// LS2 header
@ -597,6 +605,13 @@ namespace data
htobe32buf (m_Buffer + offset, timestamp); offset += 4; // published timestamp (seconds)
uint8_t * expiresBuf = m_Buffer + offset; offset += 2; // expires, fill later
htobe16buf (m_Buffer + offset, 0); offset += 2; // flags
if (keys.IsOfflineSignature ())
{
// offline signature
const auto& offlineSignature = keys.GetOfflineSignature ();
memcpy (m_Buffer + offset, offlineSignature.data (), offlineSignature.size ());
offset += offlineSignature.size ();
}
htobe16buf (m_Buffer + offset, 0); offset += 2; // properties len
// keys
m_Buffer[offset] = 1; offset++; // 1 key
@ -621,7 +636,8 @@ namespace data
SetExpirationTime (expirationTime*1000LL);
auto expires = expirationTime - timestamp;
htobe16buf (expiresBuf, expires > 0 ? expires : 0);
// we don't sign it yet. must be signed later on
// sign
keys.Sign (m_Buffer, offset, m_Buffer + offset); // LS + leading store type
}
LocalLeaseSet2::LocalLeaseSet2 (uint8_t storeType, std::shared_ptr<const IdentityEx> identity, const uint8_t * buf, size_t len):