func NewUpdateTxn(onlineSecret, offlineSecret crypto.CertcoinSecretKey,
source crypto.CertcoinPublicKey,
identity Identity) Txn {
fullName := identity.FullName()
return Txn{
Type: Update,
Inputs: []Input{
Input{
PrevHash: identity.Domain,
PublicKey: onlineSecret.PublicKey,
Signature: crypto.Sign(fullName, onlineSecret),
},
Input{
PrevHash: identity.Subdomain,
PublicKey: offlineSecret.PublicKey,
Signature: crypto.Sign(fullName, offlineSecret),
},
Input{
PrevHash: crypto.SHA256Sum{},
PublicKey: source,
Signature: crypto.CertcoinSignature{},
},
},
Outputs: []Output{
Output{
Address: crypto.SHA256Sum{},
Value: UPDATE_FEE,
},
},
}
}
func NewRevokeTxn(onlineSecret, offlineSecret crypto.CertcoinSecretKey,
source crypto.CertcoinPublicKey,
identity Identity) Txn {
sig := crypto.Sign(identity.FullName(), onlineSecret)
log.Println("Signature:", sig)
verifies := crypto.Verify(identity.FullName(), sig, onlineSecret.PublicKey)
log.Println("PublicKey:", onlineSecret.PublicKey)
log.Println("Signature:", sig)
log.Println("Verifies:", verifies)
return Txn{
Type: Revoke,
Inputs: []Input{
Input{
PrevHash: identity.Domain,
PublicKey: onlineSecret.PublicKey,
Signature: sig,
},
Input{
PrevHash: identity.Subdomain,
PublicKey: offlineSecret.PublicKey,
Signature: sig,
},
Input{
PrevHash: crypto.SHA256Sum{},
PublicKey: source,
Signature: sig,
},
},
Outputs: []Output{
Output{
Address: crypto.SHA256Sum{},
Value: REVOKE_FEE,
},
},
}
}
func Mine() {
bc := NewBlockchain()
g := GenesisBlock()
for !g.Header.ValidPoW() {
g.Header.Nonce += 1
}
fmt.Println(fmt.Sprintf("Gen: %v", string(g.Json())))
fromKey := crypto.NewKey()
toKey := crypto.NewKey()
online := crypto.NewKey()
offline := crypto.NewKey()
//for {
b := NewBlock(bc.LastHeader, crypto.Address(fromKey.PublicKey))
// Create and sign txn
txn := NewPaymentTxn(fromKey.PublicKey, crypto.Address(toKey.PublicKey), 10)
txn.Inputs[0].Signature = crypto.Sign("", fromKey)
b.Txns = append(b.Txns, txn)
identity, err := NewIdentity("certcoin.net", "")
if err != nil {
fmt.Println(err)
panic(err)
}
// Create and sign registration txn
rtxn := NewRegisterTxn(online, offline, fromKey.PublicKey, identity)
rtxn.Inputs[2].Signature = crypto.Sign("", fromKey)
b.Txns = append(b.Txns, rtxn)
newOnline := crypto.NewKey()
// Create and sign update txn
utxn := NewUpdateTxn(newOnline, offline, fromKey.PublicKey, identity)
utxn.Inputs[1].Signature = crypto.Sign("", offline)
utxn.Inputs[2].Signature = crypto.Sign("", fromKey)
b.Txns = append(b.Txns, utxn)
// Create and sign revoke txn
vtxn := NewRevokeTxn(newOnline, offline, fromKey.PublicKey, identity)
b.Txns = append(b.Txns, vtxn)
for !b.Header.ValidPoW() {
b.Header.Nonce += 1
}
//fmt.Println(fmt.Sprintf("%v", b.Json()))
//fmt.Println(b.Header.Hash())
if bc.ValidBlock(b) {
err = bc.WriteBlock(b)
if err != nil {
log.Println(err)
panic("Unable to save block")
} else {
fmt.Println("Saved block successfully")
}
} else {
fmt.Println("Invalid Block")
}
//}
}