public static LedgerValidationStatus CheckSignatures(this SignedNewLedger ledger, LedgerRequiredValidatorsFactory factory, Network network)
{
var hash = ledger.Hash;
// get required signatures
var required = factory.GetRequiredValidators();
// verify signatures
foreach (var signature in ledger.Signatures)
{
if (!signature.PublicKey.Verify(hash, signature.SignatureByte, network))
{
return(LedgerValidationStatus.InvalidPublicKey);
}
required.OnValidSignature(signature.PublicKey);
}
// check required signatures are set
if (!required.IsValid())
{
return(LedgerValidationStatus.NotEnoughSignatures);
}
return(LedgerValidationStatus.Ok);
}
public void Write(SignedNewLedger signed)
{
Write(signed.Hash);
Write(signed.Height);
Write(signed.Timestamp);
Write(signed.PreviousLedgerHash);
Write(signed.Signatures.ToList(), Write);
}
public LedgerValidationStatus Validate(SignedNewLedger signed)
{
// validate signature
return(signed.CheckSignatures(this, network));
}
