public static void Test_BlockchainWithDocumentsSignedAndGlobalSignature()
{
// Blockchain with the content having double signature and the block closure is guaranteed by digital signature
var rsa = new System.Security.Cryptography.RSACryptoServiceProvider();
var publicKeyBase64 = Convert.ToBase64String(rsa.ExportCspBlob(false));
var blocks = new Blockchain(new[] { publicKeyBase64 }, "Webmaster", "Phrases", Blockchain.BlockchainType.Binary, Blockchain.BlockSynchronization.AddInLocalAndSync, true);
var test = blocks.Validate();
bool isValid;
var block1 = new Blockchain.Block(blocks, "Hi my friends, I have a message for you");
var signature = rsa.SignHash(block1.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block1.AddBodySignature(publicKeyBase64, signature, false); // Add signature to body
signature = rsa.SignHash(block1.CalculateChecksumBytes(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block1.AddBlockSignature(signature); // Close the block with the digital signature
var block2 = new Blockchain.Block(blocks, "This is a message number 2, signed");
signature = rsa.SignHash(block2.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block2.AddBodySignature(publicKeyBase64, signature, false); // Add signature to body
signature = rsa.SignHash(block2.CalculateChecksumBytes(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block2.AddBlockSignature(signature); // Close the block with the digital signature
var block3 = new Blockchain.Block(blocks, "In the last block I added the last message");
signature = rsa.SignHash(block3.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block3.AddBodySignature(publicKeyBase64, signature, false); // Add signature to body
signature = rsa.SignHash(block3.CalculateChecksumBytes(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block3.AddBlockSignature(signature); // Close the block with the digital signature
var blockError = blocks.Validate(); // 0 = no error
var lastBlock = blocks.GetLastBlock();
}
public static void Test_BlockchainWithDocumentsSignedAndGlobalSignature()
{
// Blockchain with the content having double signature and the block closure is guaranteed by digital signature
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
var PublicKeyBase64 = Convert.ToBase64String(RSA.ExportCspBlob(false));
Blockchain Blocks = new Blockchain(PublicKeyBase64, "Webmaster", "Phrases", Blockchain.BlockchainType.Binary, true);
var Test = Blocks.Validate();
byte[] Signature;
bool IsValid;
Blockchain.Block Block1 = new Blockchain.Block(Blocks, "Hi my friends, I have a message for you");
Signature = RSA.SignHash(Block1.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block1.AddBodySignature(PublicKeyBase64, Signature, false); // Add signature to body
Signature = RSA.SignHash(Block1.CalculateChecksumBytes(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block1.AddBlockSignature(Signature); // Close the block with the digital signature
Blockchain.Block Block2 = new Blockchain.Block(Blocks, "This is a message number 2, signed");
Signature = RSA.SignHash(Block2.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block2.AddBodySignature(PublicKeyBase64, Signature, false); // Add signature to body
Signature = RSA.SignHash(Block2.CalculateChecksumBytes(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block2.AddBlockSignature(Signature); // Close the block with the digital signature
Blockchain.Block Block3 = new Blockchain.Block(Blocks, "In the last block I added the last message");
Signature = RSA.SignHash(Block3.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block3.AddBodySignature(PublicKeyBase64, Signature, false); // Add signature to body
Signature = RSA.SignHash(Block3.CalculateChecksumBytes(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block3.AddBlockSignature(Signature); // Close the block with the digital signature
int BlockError = Blocks.Validate(); // 0 = no error
var LastBlock = Blocks.GetLastBlock();
}
private static void ActionSync(string xmlObject, long timestamp)
{
if (!Converter.XmlToObject(xmlObject, typeof(Blockchain.Block.DataVector), out var objDataVector))
{
return;
}
var dataVector = (Blockchain.Block.DataVector)objDataVector;
var block = new Blockchain.Block(dataVector.Blockchain, dataVector.Data, new DateTime(timestamp));
}
public static void Test_SimpleBlockchain()
{
// Simple blockchain
var blocks = new Blockchain("Webmaster", "Phrases", Blockchain.BlockchainType.Binary, Blockchain.BlockSynchronization.AddInLocalAndSync, false);
var test = blocks.Validate();
var block1 = new Blockchain.Block(blocks, "Hi my friends, I have a message for you");
var block2 = new Blockchain.Block(blocks, "This is a message number 2");
var block3 = new Blockchain.Block(blocks, "In the last block I added the last message");
var blockError = blocks.Validate(); // 0 = no error
var lastBlock = blocks.GetLastBlock();
}
public static void Test_SimpleBlockchain()
{
// Simple blockchain
Blockchain Blocks = new Blockchain("Webmaster", "Phrases", Blockchain.BlockchainType.Binary, false);
var Test = Blocks.Validate();
Blockchain.Block Block1 = new Blockchain.Block(Blocks, "Hi my friends, I have a message for you");
Blockchain.Block Block2 = new Blockchain.Block(Blocks, "This is a message number 2");
Blockchain.Block Block3 = new Blockchain.Block(Blocks, "In the last block I added the last message");
int BlockError = Blocks.Validate(); // 0 = no error
var LastBlock = Blocks.GetLastBlock();
}
public static void Test_BlockchainWithDocumentsSigned()
{
// Blockchain with the content having double signature
var rsa1 = new System.Security.Cryptography.RSACryptoServiceProvider();
var publicKey1Base64 = Convert.ToBase64String(rsa1.ExportCspBlob(false));
var rsa2 = new System.Security.Cryptography.RSACryptoServiceProvider();
var publicKey2Base64 = Convert.ToBase64String(rsa2.ExportCspBlob(false));
var blocks = new Blockchain("Webmaster", "Phrases", Blockchain.BlockchainType.Binary, Blockchain.BlockSynchronization.AddInLocalAndSync, true);
var test = blocks.Validate();
bool isValid;
var block1 = new Blockchain.Block(blocks, "Hi my friends, I have a message for you");
var signature = rsa1.SignHash(block1.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block1.AddBodySignature(publicKey1Base64, signature, false); // Add first signature
signature = rsa2.SignHash(block1.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block1.AddBodySignature(publicKey2Base64, signature, true); // Add second signature and closing the block
var block2 = new Blockchain.Block(blocks, "This is a message number 2, signed");
signature = rsa1.SignHash(block2.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block2.AddBodySignature(publicKey1Base64, signature, false); // Add first signature
signature = rsa2.SignHash(block2.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block2.AddBodySignature(publicKey2Base64, signature, true);
var block3 = new Blockchain.Block(blocks, "In the last block I added the last message");
signature = rsa1.SignHash(block3.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block3.AddBodySignature(publicKey1Base64, signature, false); // Add first signature
signature = rsa2.SignHash(block3.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
isValid = block3.AddBodySignature(publicKey2Base64, signature, true); // Add second signature and closing the block
var blockError = blocks.Validate(); // 0 = no error
var lastBlock = blocks.GetLastBlock();
}
public static void Test_BlockchainWithDocumentsSigned()
{
// Blockchain with the content having double signature
System.Security.Cryptography.RSACryptoServiceProvider RSA1 = new System.Security.Cryptography.RSACryptoServiceProvider();
var PublicKey1Base64 = Convert.ToBase64String(RSA1.ExportCspBlob(false));
System.Security.Cryptography.RSACryptoServiceProvider RSA2 = new System.Security.Cryptography.RSACryptoServiceProvider();
var PublicKey2Base64 = Convert.ToBase64String(RSA2.ExportCspBlob(false));
Blockchain Blocks = new Blockchain("Webmaster", "Phrases", Blockchain.BlockchainType.Binary, true);
var Test = Blocks.Validate();
byte[] Signature;
bool IsValid;
Blockchain.Block Block1 = new Blockchain.Block(Blocks, "Hi my friends, I have a message for you");
Signature = RSA1.SignHash(Block1.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block1.AddBodySignature(PublicKey1Base64, Signature, false); // Add first signature
Signature = RSA2.SignHash(Block1.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block1.AddBodySignature(PublicKey2Base64, Signature, true); // Add second signature and closing the block
Blockchain.Block Block2 = new Blockchain.Block(Blocks, "This is a message number 2, signed");
Signature = RSA1.SignHash(Block2.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block2.AddBodySignature(PublicKey1Base64, Signature, false); // Add first signature
Signature = RSA2.SignHash(Block2.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block2.AddBodySignature(PublicKey2Base64, Signature, true);
Blockchain.Block Block3 = new Blockchain.Block(Blocks, "In the last block I added the last message");
Signature = RSA1.SignHash(Block3.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block3.AddBodySignature(PublicKey1Base64, Signature, false); // Add first signature
Signature = RSA2.SignHash(Block3.HashBody(), System.Security.Cryptography.CryptoConfig.MapNameToOID("SHA256"));
IsValid = Block3.AddBodySignature(PublicKey2Base64, Signature, true); // Add second signature and closing the block
int BlockError = Blocks.Validate(); // 0 = no error
var LastBlock = Blocks.GetLastBlock();
}