public StratisBlockData CertifyUser(string emailAddress, string moocEmailAddress, MicroCredential MicroCredential)
{
var block = new StratisBlockData(DateTime.Now, new List <Transactions> {
new Transactions(moocEmailAddress, emailAddress, MicroCredential.CertificateFee)
{
MicroCredentials = new List <MicroCredential> {
new MicroCredential {
MicroCredentialId = MicroCredential.MicroCredentialId,
/*MicroCredentialDescription = MicroCredential.MicroCredentialDescription,*/
MicroCredentialName = MicroCredential.MicroCredentialName
}
}
}
});
//Get RSAKeysFromDB
var moocProvider = RepositoryEndPointService.GetMoocProviderFromDB();
RestoreMoocKeys(moocProvider);
//Note We Sign with Mooc's Public Key. and Expose Private Key to the other parites to verify Mooc's Signature!!
block.KeyModulus = moocProvider.MoocModulus; //Rsa316Engine.getModValue();
block.MoocPublicKey = moocProvider.MoocPublicKey; //Rsa316Engine.getPublicKey();
block.MoocSignature = CreateSignature(block);
return(block);
}
public BlockChainResponse StratisMineBlockThenReturnResponse(StratisBlockData block)
{
try
{
var stratisMineRelativeUrl = ConfigurationManager.AppSettings["StratisBlockChainMineRelativeUrl"];
var hashOfMineData = StratisEndPointService.StratisMineBlockFromChain(stratisMineRelativeUrl, block);
return(hashOfMineData);
}
catch (Exception e)
{
throw e;
}
}
public StratisBlockData MoocSignBlock(StratisBlockData blockToSign)
{
var signaturesRaw = blockToSign.Transactions.Select(q => {
var individualDetails = q.Amount.ToString() + q.From + q.To;
var microCredential = q.MicroCredentials.Select(p => { return(p.MicroCredentialId.ToString() + p.MicroCredentialId.ToString() + p.MicroCredentialName); }).ToList();
var strBuilder = new StringBuilder();
microCredential.ForEach(p => strBuilder.Append(p));
var subResult = individualDetails + strBuilder.ToString();
return(subResult);
});
var absoluteContentSignature = new StringBuilder();
signaturesRaw.ToList().ForEach(s => absoluteContentSignature.Append(s));
blockToSign.MoocSignature = Convert.ToBase64String(Rsa316Engine.Encrypt(absoluteContentSignature.ToString()));
return(blockToSign);
}
public string GetUserDataToCertify(string emailAddress, string moocEmailAddress, MicroCredential MicroCredential)
{
var block = new StratisBlockData(DateTime.Now, new List <Transactions> {
new Transactions(moocEmailAddress, emailAddress, MicroCredential.CertificateFee)
{
MicroCredentials = new List <MicroCredential> {
new MicroCredential {
MicroCredentialId = MicroCredential.MicroCredentialId,
/*MicroCredentialDescription = MicroCredential.MicroCredentialDescription,*/
MicroCredentialName = MicroCredential.MicroCredentialName,
Fee = MicroCredential.Fee,
CertificateFee = MicroCredential.CertificateFee
}
}
}
});
return($"Fr:{block.Transactions.First().From},To:{block.Transactions.First().To},Fee:{block.Transactions.First().MicroCredentials.First().Fee},CFee:{block.Transactions.First().MicroCredentials.First().CertificateFee},CrId:{block.Transactions.First().MicroCredentials.First().MicroCredentialId}");
}
public string CreateSignature(StratisBlockData blockToVerify)
{
var signaturesRaw = blockToVerify.Transactions.Select(q =>
{
var individualDetails = q.Amount.ToString() + q.From + q.To;
var microCredentials = q.MicroCredentials.Select(p => { return(p.MicroCredentialId.ToString() + p.MicroCredentialCode + p.MicroCredentialDescription + p.MicroCredentialName); }).ToList();
var strBuilder = new StringBuilder();
microCredentials.ForEach(p => strBuilder.Append(p));
var subResult = individualDetails + ":" + strBuilder.ToString();
return(subResult);
});
var absoluteContentSignature = new StringBuilder();
signaturesRaw.ToList().ForEach(s => absoluteContentSignature.Append(s));
var sigBytes = Rsa316Engine.Encrypt(absoluteContentSignature.ToString());
return(Convert.ToBase64String(sigBytes));
}
public bool VerifyMoocSignature(StratisBlockData blockToVerify)
{
var signaturesRaw = blockToVerify.Transactions.Select(q => {
var individualDetails = q.Amount.ToString() + q.From + q.To;
var microCredential = q.MicroCredentials.Select(p => { return(p.MicroCredentialId.ToString() + p.MicroCredentialId.ToString() + p.MicroCredentialName); }).ToList();
var strBuilder = new StringBuilder();
microCredential.ForEach(p => strBuilder.Append(p));
var subResult = individualDetails + ":" + strBuilder.ToString();
return(subResult);
});
var absoluteContentSignature = new StringBuilder();
signaturesRaw.ToList().ForEach(s => absoluteContentSignature.Append(s));
var decryptedSignature = Encoding.UTF8.GetString(Rsa316Engine.Decrypt(blockToVerify.MoocSignature));
return(decryptedSignature.Equals(absoluteContentSignature.ToString()));
}
public BlockChainResponse StratisMineBlockFromChain(string stratisMineUrl, StratisBlockData blockData)
{
blockData.blockCount = 1;
return(StratisMineBlock(stratisMineUrl, blockData).Result);
}
protected async Task <BlockChainResponse> StratisMineBlock(string stratisMineUrl, StratisBlockData blockData)
{
var jsonMediaTypeFormatter = new JsonMediaTypeFormatter();
BlockChainData request = new BlockChainData {
blockCount = blockData.blockCount, description = blockData
};
var httpResponse = await HttpClient.PostAsJsonAsync <BlockChainData>(stratisMineUrl, request);
return(JsonConvert.DeserializeObject <BlockChainResponse>(httpResponse.Content.ReadAsStringAsync().Result));
}
