public string GetSeal(byte[] rgbHash, System.Security.Cryptography.RSACryptoServiceProvider privateKey)
{
System.Security.Cryptography.RSAPKCS1SignatureFormatter rsaPKCS1 = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(privateKey);
rsaPKCS1.SetHashAlgorithm("SHA256");
return(Convert.ToBase64String(rsaPKCS1.CreateSignature(rgbHash)));
}
private Boolean GenerarSelloSHA256(String CadenaOriginal, Certificado cert, out String Resultado, out List <String> ErrorSellado)
{
Boolean Devolver = false;
Resultado = String.Empty;
String SelloDigital = String.Empty;
String ErrorSellador = String.Empty;
ErrorSellado = new List <string>();
System.Security.Cryptography.SHA256CryptoServiceProvider EncriptaSHA256 = new System.Security.Cryptography.SHA256CryptoServiceProvider();
Byte[] CadenaOriginalEnBytes = EncriptaSHA256.ComputeHash(System.Text.Encoding.UTF8.GetBytes(CadenaOriginal));
System.Security.Cryptography.RSACryptoServiceProvider RSA = null;
byte[] keyblob = cert.bKey;
if (keyblob != null)
{
if (SSLKey.opensslkey.DecodeEncryptedPrivateKeyInfo(keyblob, cert.ContrasenaSegura, out RSA, out ErrorSellador))
{
//RSA.FromXmlString(LLavePrivada);
System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
RSAFormatter.SetHashAlgorithm("SHA256");
CadenaOriginalEnBytes = RSAFormatter.CreateSignature(CadenaOriginalEnBytes);
SelloDigital = Convert.ToBase64String(CadenaOriginalEnBytes);
Resultado = SelloDigital;
Devolver = true;
}
else
{
ErrorSellado.Add(ErrorSellador);
}
}
return(Devolver);
}
private static async System.Threading.Tasks.Task <ResultType> TaskMain(Fee.Crypt.OnCryptTask_CallBackInterface a_callback_interface, byte[] a_binary, string a_key, Fee.TaskW.CancelToken a_cancel)
#endif
{
ResultType t_ret;
{
t_ret.binary = null;
t_ret.errorstring = null;
}
try{
//ハッシュの計算。
byte[] t_hash_binary = null;
using (System.Security.Cryptography.SHA1Managed t_sha1 = new System.Security.Cryptography.SHA1Managed()){
t_hash_binary = t_sha1.ComputeHash(a_binary);
}
if (t_hash_binary == null)
{
t_ret.binary = null;
t_ret.errorstring = "Task_CreateSignaturePrivateKey : hash == null";
}
else
{
using (System.Security.Cryptography.RSACryptoServiceProvider t_rsa = new System.Security.Cryptography.RSACryptoServiceProvider()){
t_rsa.FromXmlString(a_key);
//証明書作成。
System.Security.Cryptography.RSAPKCS1SignatureFormatter t_formatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(t_rsa);
t_formatter.SetHashAlgorithm("SHA1");
t_ret.binary = t_formatter.CreateSignature(t_hash_binary);
}
}
}catch (System.Exception t_exception) {
t_ret.binary = null;
t_ret.errorstring = "Task_CreateSignaturePrivateKey : " + t_exception.Message;
}
if (a_cancel.IsCancellationRequested() == true)
{
t_ret.binary = null;
t_ret.errorstring = "Task_CreateSignaturePrivateKey : Cancel";
a_cancel.ThrowIfCancellationRequested();
}
if (t_ret.binary == null)
{
if (t_ret.errorstring == null)
{
t_ret.errorstring = "Task_CreateSignaturePrivateKey : null";
}
}
return(t_ret);
}
public string SignatureFormatter(string m_strHashbyteSignature)
{
byte[] rgbHash = System.Convert.FromBase64String(m_strHashbyteSignature);
System.Security.Cryptography.RSACryptoServiceProvider rSACryptoServiceProvider = new System.Security.Cryptography.RSACryptoServiceProvider();
rSACryptoServiceProvider.FromXmlString(this.p_strKeyPrivate);
System.Security.Cryptography.RSAPKCS1SignatureFormatter rSAPKCS1SignatureFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(rSACryptoServiceProvider);
rSAPKCS1SignatureFormatter.SetHashAlgorithm("MD5");
byte[] inArray = rSAPKCS1SignatureFormatter.CreateSignature(rgbHash);
return(System.Convert.ToBase64String(inArray));
}
public byte[] sign()
{
// byte[] sig=signature.sign();
// return sig;
cs.Close();
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
RSA.ImportParameters(RSAKeyInfo);
System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
RSAFormatter.SetHashAlgorithm("SHA1");
byte[] sig = RSAFormatter.CreateSignature(sha1);
return(sig);
}
public static byte[] CreateDigitalSignature(byte[] bytes, string privateKey)
{
using (var sha = new System.Security.Cryptography.SHA256Managed())
{
var hashData = sha.ComputeHash(bytes);
using (var rsa = new System.Security.Cryptography.RSACryptoServiceProvider())
{
rsa.FromXmlString(privateKey);
var rsaFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(rsa);
rsaFormatter.SetHashAlgorithm("SHA256");
var signedValue = rsaFormatter.CreateSignature(hashData);
return(signedValue);
}
}
}
public byte[] sign()
{
// byte[] sig=signature.sign();
// return sig;
cs.Close();
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
RSA.ImportParameters(RSAKeyInfo);
System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
RSAFormatter.SetHashAlgorithm("SHA1");
byte[] sig = RSAFormatter.CreateSignature( sha1 );
return sig;
}
