public override void Put(byte[] key, byte[][] value)
{
if (value == default(byte[][]))
{
baseStorage.Put(key, null);
}
else
{
baseStorage.Put(key, Decode(value));
}
}
public override void Put(byte[] key, byte[] value)
{
if (value == null)
{
baseStorage.Put(key, null);
}
else
{
baseStorage.Put(key, Encrypt(value));
}
}
public bool UpdatePassword(byte[] userID, string password, string newPassword, string pepper)
{
if (userID == null)
{
throw new ArgumentNullException("userID");
}
if (password == null)
{
throw new ArgumentNullException("password");
}
if (newPassword == null)
{
throw new ArgumentNullException("newPassword");
}
if (pepper == null)
{
throw new ArgumentNullException("pepper");
}
byte[] privateKeyRaw = userKeys.Get(userID);
{ //verify password
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(privateKeyRaw);
Stream cryptoStream = CreateCryptoStream(memoryStream, userID, password, pepper, CryptoStreamMode.Read);
RSAParameters privateKey = DeserializeKey(cryptoStream);
RSAParameters pubKey = GetPublicKey(userID);
if ((ByteSequenceComparer.Shared.Compare(pubKey.Modulus, privateKey.Modulus) != 0) || (ByteSequenceComparer.Shared.Compare(pubKey.Exponent, privateKey.Exponent) != 0))
{
return(false);
}
}
MemoryStream newKeyStream = new MemoryStream();
Rijndael oldPassRij = CreateRijndael(userID, password, pepper);
Rijndael newPassRij = CreateRijndael(userID, newPassword, pepper);
System.Security.Cryptography.CryptoStream streamI = new CryptoStream(new System.IO.MemoryStream(privateKeyRaw), oldPassRij.CreateDecryptor(), CryptoStreamMode.Read);
System.Security.Cryptography.CryptoStream streamO = new CryptoStream(newKeyStream, newPassRij.CreateEncryptor(), CryptoStreamMode.Write);
var buffer = new byte[1024];
var read = streamI.Read(buffer, 0, buffer.Length);
while (read > 0)
{
streamO.Write(buffer, 0, read);
read = streamI.Read(buffer, 0, buffer.Length);
}
streamO.FlushFinalBlock();
byte[] newKeyRaw = newKeyStream.ToArray();
userKeys.Put(userID, newKeyRaw);
return(true);
}
public void Push(byte[] chunkID, byte[] data, byte[][] dependencies, byte[][] signatures)
{
if (chunkID == null)
{
throw new ArgumentNullException("chunkID");
}
if (data == null)
{
throw new ArgumentNullException("data");
}
if (dependencies == null)
{
throw new ArgumentNullException("dependencies");
}
ldataDependencies.Put(chunkID, dependencies);
ldata.Put(chunkID, data);
ldataTopLevels.Put(chunkID, dependencies);
lsignatures.Put(chunkID, signatures);
for (int n = 0; n != signatures.Length; n++)
{
if (signatures [n] == null)
{
throw new ArgumentNullException(string.Format("signatures[{0}]", n), "signature cannot be null");
}
}
for (int n = 0; n != dependencies.Length; n++)
{
byte[] dependency = dependencies [n];
if (dependency == null)
{
throw new ArgumentNullException(string.Format("dependencies[{0}]", n), "dependency cannot be null");
}
ldataTopLevels.Delete(dependency);
}
}
public void CreateUser(string name, string password, string pepper, byte[] parentID)
{
byte[] userID = new byte[32];
RandomNumberGenerator.Create().GetBytes(userID);
Console.Write("User ID:");
foreach (byte b in userID)
{
Console.Write(" {0:X2}", b);
}
Console.WriteLine();
using (var rsa = new RSACryptoServiceProvider(2048)) {
using (var rsaSign = new RSACryptoServiceProvider(2048)) {
try {
userNames.Put(userID, name);
if (parentID != null)
{
userParents.Put(userID, parentID);
}
var Rij = CreateRijndael(userID, password, pepper);
{
MemoryStream streamI = new MemoryStream(System.Text.Encoding.Unicode.GetBytes(rsa.ToXmlString(true)));
MemoryStream newKeyStream = new MemoryStream();
CryptoStream streamO = new CryptoStream(newKeyStream, Rij.CreateEncryptor(), CryptoStreamMode.Write);
var buffer = new byte[1024];
var read = streamI.Read(buffer, 0, buffer.Length);
while (read > 0)
{
streamO.Write(buffer, 0, read);
read = streamI.Read(buffer, 0, buffer.Length);
}
streamO.FlushFinalBlock();
userKeys.Put(userID, newKeyStream.ToArray());
}
userCerts.Put(userID, System.Text.Encoding.Unicode.GetBytes(rsa.ToXmlString(false)));
{
MemoryStream streamI = new MemoryStream(System.Text.Encoding.Unicode.GetBytes(rsaSign.ToXmlString(true)));
MemoryStream newKeyStream = new MemoryStream();
CryptoStream streamO = new CryptoStream(newKeyStream, Rij.CreateEncryptor(), CryptoStreamMode.Write);
var buffer = new byte[1024];
var read = streamI.Read(buffer, 0, buffer.Length);
while (read > 0)
{
streamO.Write(buffer, 0, read);
read = streamI.Read(buffer, 0, buffer.Length);
}
streamO.FlushFinalBlock();
userSigningKeys.Put(userID, newKeyStream.ToArray());
}
userSigningCerts.Put(userID, System.Text.Encoding.Unicode.GetBytes(rsaSign.ToXmlString(false)));
} finally {
rsa.PersistKeyInCsp = false;
rsaSign.PersistKeyInCsp = false;
}
}
}
}
public override void Put(byte[] key, byte[] value)
{
baseStorage.Put(key, Encrypt(value));
}
