/// <summary>
/// check if the address is valid
/// </summary>
/// <param name="encodedAddress">Address</param>
/// <returns>valid or not</returns>
public static bool IsValid(string encodedAddress)
{
// interpret as base32
var checksumAddr = Base32.DecodeFromString(encodedAddress).ToList();
if (checksumAddr.Count != LEN_BYTES + CHECKSUM_LEN_BYTES)
{
return(false);
}
// split into checksum
byte[] checksum = checksumAddr.GetRange(LEN_BYTES, checksumAddr.Count - LEN_BYTES).ToArray();
byte[] addr = checksumAddr.GetRange(0, LEN_BYTES).ToArray();
// compute expected checksum
var hashedAddr = Digester.Digest(addr).ToList();
byte[] expectedChecksum = hashedAddr.GetRange(LEN_BYTES - CHECKSUM_LEN_BYTES,
hashedAddr.Count - LEN_BYTES + CHECKSUM_LEN_BYTES).ToArray();
// compare
if (Enumerable.SequenceEqual(checksum, expectedChecksum))
{
return(true);
}
else
{
return(false);
}
}
private byte[] GetAdressBytes(string encodedAddr)
{
byte[] checksumAddr = Base32.DecodeFromString(encodedAddr);
return(JavaHelper <byte> .ArrayCopyOf(checksumAddr, LEN_BYTES));
}