public static byte[] SignCompact(byte[] data, byte[] seckey, out int recoveryId)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
if (data.Length == 0)
{
throw new ArgumentOutOfRangeException(nameof(data));
}
if (seckey == null)
{
throw new ArgumentNullException(nameof(seckey));
}
if (seckey.Length != 32)
{
throw new ArgumentOutOfRangeException(nameof(seckey));
}
recoveryId = 0;
EcdsaRecoverableSignature recoverableSignature = new EcdsaRecoverableSignature();
if (!Secp256K1Manager.Secp256K1EcdsaSignRecoverable(Secp256K1Manager.Ctx, recoverableSignature, data, seckey, (NonceFunction)null, (byte[])null))
{
return((byte[])null);
}
byte[] output64 = new byte[64];
byte recid;
if (!Secp256K1Manager.Secp256K1EcdsaRecoverableSignatureSerializeCompact(Secp256K1Manager.Ctx, output64, out recid, recoverableSignature))
{
return((byte[])null);
}
recoveryId = (int)recid;
return(output64);
}
private static bool Secp256K1EcdsaRecoverableSignatureSerializeCompact(Context ctx, byte[] outputxx, int skip, out byte recid, EcdsaRecoverableSignature sig)
{
Scalar scalar1 = new Scalar();
Scalar scalar2 = new Scalar();
recid = (byte)0;
if (outputxx == null)
{
EventHandler <Callback> illegalCallback = ctx.IllegalCallback;
if (illegalCallback != null)
{
illegalCallback((object)null, new Callback("(outputxx != null)"));
}
return(false);
}
if (sig == null)
{
EventHandler <Callback> illegalCallback = ctx.IllegalCallback;
if (illegalCallback != null)
{
illegalCallback((object)null, new Callback("(sig != null)"));
}
return(false);
}
Secp256K1Manager.Secp256K1EcdsaRecoverableSignatureLoad(scalar1, scalar2, out recid, sig);
Scalar.GetB32(outputxx, skip, scalar1);
Scalar.GetB32(outputxx, skip + 32, scalar2);
return(true);
}
static Secp256K1Manager()
{
Secp256K1Manager.IllegalCallback += new EventHandler <Callback>(Secp256K1Manager.OnIllegalCallback);
Secp256K1Manager.ErrorCallback += new EventHandler <Callback>(Secp256K1Manager.OnErrorCallback);
Secp256K1Manager.Ctx = new Context();
Secp256K1Manager.Ctx = Secp256K1Manager.Secp256K1ContextCreate(Options.ContextVerify | Options.FlagsBitContextSign);
}
public static byte[] SignCompressedCompact(byte[] data, byte[] seckey)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
if (data.Length == 0)
{
throw new ArgumentOutOfRangeException(nameof(data));
}
if (seckey == null)
{
throw new ArgumentNullException(nameof(seckey));
}
if (seckey.Length != 32)
{
throw new ArgumentOutOfRangeException(nameof(seckey));
}
byte recid = 0;
EcdsaRecoverableSignature recoverableSignature = new EcdsaRecoverableSignature();
byte num1 = 0;
int num2 = 0;
byte[] numArray = (byte[])null;
RandomNumberGenerator randomNumberGenerator = RandomNumberGenerator.Create();
do
{
if (num1 == byte.MaxValue)
{
++num2;
num1 = (byte)0;
}
if (num1 > (byte)0)
{
numArray = new byte[32];
randomNumberGenerator.GetBytes(numArray);
}
++num1;
}while (!Secp256K1Manager.Secp256K1EcdsaSignRecoverable(Secp256K1Manager.Ctx, recoverableSignature, data, seckey, (NonceFunction)null, numArray) || !Secp256K1Manager.IsCanonical(recoverableSignature.Data));
byte[] outputxx = new byte[65];
Secp256K1Manager.Secp256K1EcdsaRecoverableSignatureSerializeCompact(Secp256K1Manager.Ctx, outputxx, 1, out recid, recoverableSignature);
outputxx[0] = (byte)((int)recid + 4 + 27);
return(outputxx);
}
public static byte[] GetPublicKey(byte[] privateKey, bool compressed)
{
if (privateKey == null)
{
throw new ArgumentNullException(nameof(privateKey));
}
if (privateKey.Length != 32)
{
throw new ArgumentOutOfRangeException(nameof(privateKey));
}
PubKey pubKey = new PubKey();
if (!Secp256K1T.EcPubKeyCreate(Secp256K1Manager.Ctx, pubKey, privateKey))
{
return((byte[])null);
}
return(Secp256K1Manager.SerializePublicKey(pubKey, compressed));
}
private static int SignCompact(Context ctx, byte[] msg32, byte[] seckey, byte[] output64, out byte recid)
{
EcdsaRecoverableSignature recoverableSignature = new EcdsaRecoverableSignature();
byte num = 0;
int index = 0;
byte[] noncedata = new byte[32];
do
{
noncedata[index] = num;
++num;
if (noncedata[index] == byte.MaxValue)
{
++index;
}
}while (!Secp256K1Manager.Secp256K1EcdsaSignRecoverable(ctx, recoverableSignature, msg32, seckey, (NonceFunction)null, noncedata));
Secp256K1Manager.Secp256K1EcdsaRecoverableSignatureSerializeCompact(ctx, output64, out recid, recoverableSignature);
return((int)num);
}
private static byte[] SignCompact(byte[] data, byte[] seckey, out byte recoveryId)
{
EcdsaRecoverableSignature recoverableSignature = new EcdsaRecoverableSignature();
byte num = 0;
int index = 0;
byte[] noncedata = new byte[32];
do
{
noncedata[index] = num++;
if (num == byte.MaxValue)
{
++index;
num = (byte)0;
}
}while (!Secp256K1Manager.Secp256K1EcdsaSignRecoverable(Secp256K1Manager.Ctx, recoverableSignature, data, seckey, (NonceFunction)null, noncedata));
byte[] output64 = new byte[64];
Secp256K1Manager.Secp256K1EcdsaRecoverableSignatureSerializeCompact(Secp256K1Manager.Ctx, output64, out recoveryId, recoverableSignature);
return(output64);
}
private static bool Secp256K1EcdsaSignRecoverable(Context ctx, EcdsaRecoverableSignature signature, byte[] msg32, byte[] seckey, NonceFunction noncefp, byte[] noncedata)
{
if (ctx == null || msg32 == null || (signature == null || seckey == null))
{
throw new NullReferenceException();
}
if (!EcMultGen.ContextIsBuilt(ctx.EcMultGenCtx))
{
throw new ArithmeticException();
}
if (noncefp == null)
{
noncefp = Secp256K1T.NonceFunctionDefault;
}
byte recid = 1;
bool flag = false;
bool overflow = false;
Scalar scalar1 = new Scalar();
Scalar.SetB32(scalar1, seckey, ref overflow);
Scalar scalar2 = new Scalar();
Scalar scalar3 = new Scalar();
if (!overflow && !Scalar.IsZero(scalar1))
{
byte[] numArray = new byte[32];
uint attempt = 0;
Scalar scalar4 = new Scalar();
Scalar.SetB32(scalar4, msg32);
Scalar scalar5 = new Scalar();
while (true)
{
flag = noncefp(numArray, msg32, seckey, (byte[])null, noncedata, attempt);
if (flag)
{
Scalar.SetB32(scalar5, numArray, ref overflow);
if (Scalar.IsZero(scalar5) || overflow || !Secp256K1Manager.Secp256K1EcdsaSigSign(ctx.EcMultGenCtx, scalar2, scalar3, scalar1, scalar4, scalar5, out recid))
{
++attempt;
}
else
{
break;
}
}
else
{
break;
}
}
Util.MemSet(numArray, (byte)0, 32);
Scalar.Clear(scalar4);
Scalar.Clear(scalar5);
Scalar.Clear(scalar1);
}
if (flag)
{
Secp256K1Manager.Secp256K1EcdsaRecoverableSignatureSave(signature, scalar2, scalar3, recid);
}
else
{
Util.MemSet(signature.Data, (byte)0, 65);
}
return(flag);
}
private static bool Secp256K1EcdsaRecoverableSignatureSerializeCompact(Context ctx, byte[] output64, out byte recid, EcdsaRecoverableSignature sig)
{
return(Secp256K1Manager.Secp256K1EcdsaRecoverableSignatureSerializeCompact(ctx, output64, 0, out recid, sig));
}