public string Encrypt(string clearText)
{
StringBuilder output = new StringBuilder();
KeyIndexer key = new KeyIndexer();
for (int i = 0; i < Key.Length; i++)
{
for (int j = 0; j < alphabet.Length; j++)
{
if (Key[i] == alphabet[j])
{
key.Add(i, j);
}
}
}
key.KeyedBy = KeyedBy.Value;
for (int i = 0; i < Key.Length; i++)
{
for (int j = key[i]; j < clearText.Length; j += Key.Length)
{
output.Append(clearText[j]);
}
}
return(output.ToString());
}
/// <summary>
/// Set the data before serialization
/// </summary>
/// <param name="data">The list of </param>
public void SetData(IList <ContentCatalogDataEntry> data)
{
if (data == null)
{
return;
}
var providers = new KeyIndexer <string>(data.Select(s => s.Provider), 10);
var internalIds = new KeyIndexer <string>(data.Select(s => s.InternalId), data.Count);
var keys = new KeyIndexer <object>(data.SelectMany(s => s.Keys), data.Count * 3);
var types = new KeyIndexer <Type>(data.Select(s => s.ResourceType), 50);
keys.Add(data.SelectMany(s => s.Dependencies));
var keyIndexToEntries = new KeyIndexer <List <ContentCatalogDataEntry>, object>(keys.values, s => new List <ContentCatalogDataEntry>(), keys.values.Count);
var entryToIndex = new Dictionary <ContentCatalogDataEntry, int>(data.Count);
var extraDataList = new List <byte>();
var entryIndexToExtraDataIndex = new Dictionary <int, int>();
int extraDataIndex = 0;
//create buckets of key to data entry
for (int i = 0; i < data.Count; i++)
{
var e = data[i];
int extraDataOffset = -1;
if (e.Data != null)
{
var len = SerializationUtilities.WriteObjectToByteList(e.Data, extraDataList);
if (len > 0)
{
extraDataOffset = extraDataIndex;
extraDataIndex += len;
}
}
entryIndexToExtraDataIndex.Add(i, extraDataOffset);
entryToIndex.Add(e, i);
foreach (var k in e.Keys)
{
keyIndexToEntries[k].Add(e);
}
}
m_ExtraDataString = Convert.ToBase64String(extraDataList.ToArray());
//create extra entries for dependency sets
Dictionary <int, object> hashSources = new Dictionary <int, object>();
int originalEntryCount = data.Count;
for (int i = 0; i < originalEntryCount; i++)
{
var entry = data[i];
if (entry.Dependencies == null || entry.Dependencies.Count < 2)
{
continue;
}
int hashCode = CalculateCollectedHash(entry.Dependencies, hashSources);
bool isNew = false;
keys.Add(hashCode, ref isNew);
if (isNew)
{
//if this combination of dependecies is new, add a new entry and add its key to all contained entries
var deps = entry.Dependencies.Select(d => keyIndexToEntries[d][0]).ToList();
keyIndexToEntries.Add(hashCode, deps);
foreach (var dep in deps)
{
dep.Keys.Add(hashCode);
}
}
//reset the dependency list to only contain the key of the new set
entry.Dependencies.Clear();
entry.Dependencies.Add(hashCode);
}
//serialize internal ids and providers
m_InternalIds = internalIds.values.ToArray();
m_ProviderIds = providers.values.ToArray();
m_resourceTypes = types.values.Select(t => new SerializedType()
{
Value = t
}).ToArray();
m_Keys = keys.values.Where(x => x != null)
.Select(x => x.ToString())
.ToArray();
//serialize entries
{
var entryData = new byte[data.Count * k_ByteSize * k_EntryDataItemPerEntry + k_ByteSize];
var entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, data.Count, 0);
for (int i = 0; i < data.Count; i++)
{
var e = data[i];
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, internalIds.map[e.InternalId], entryDataOffset);
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, providers.map[e.Provider], entryDataOffset);
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, e.Dependencies.Count == 0 ? -1 : keyIndexToEntries.map[e.Dependencies[0]], entryDataOffset);
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, e.ComputeDependencyHash(), entryDataOffset);
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, entryIndexToExtraDataIndex[i], entryDataOffset);
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, keys.map[e.Keys.First()], entryDataOffset);
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, types.map[e.ResourceType], entryDataOffset);
}
m_EntryDataString = Convert.ToBase64String(entryData);
}
//serialize keys and mappings
{
var entryCount = keyIndexToEntries.values.Aggregate(0, (a, s) => a += s.Count);
var bucketData = new byte[4 + keys.values.Count * 8 + entryCount * 4];
var keyData = new List <byte>(keys.values.Count * 10);
keyData.AddRange(BitConverter.GetBytes(keys.values.Count));
int keyDataOffset = 4;
int bucketDataOffset = SerializationUtilities.WriteInt32ToByteArray(bucketData, keys.values.Count, 0);
for (int i = 0; i < keys.values.Count; i++)
{
var key = keys.values[i];
bucketDataOffset = SerializationUtilities.WriteInt32ToByteArray(bucketData, keyDataOffset, bucketDataOffset);
keyDataOffset += SerializationUtilities.WriteObjectToByteList(key, keyData);
var entries = keyIndexToEntries[key];
bucketDataOffset = SerializationUtilities.WriteInt32ToByteArray(bucketData, entries.Count, bucketDataOffset);
foreach (var e in entries)
{
bucketDataOffset = SerializationUtilities.WriteInt32ToByteArray(bucketData, entryToIndex[e], bucketDataOffset);
}
}
m_BucketDataString = Convert.ToBase64String(bucketData);
m_KeyDataString = Convert.ToBase64String(keyData.ToArray());
}
}
/// <summary>
/// Set the data before serialization
/// </summary>
/// <param name="data">The list of </param>
public void SetData(IList <ContentCatalogDataEntry> data)
{
if (data == null)
{
return;
}
var providers = new KeyIndexer <string>(data.Select(s => s.Provider), 10);
var internalIds = new KeyIndexer <string>(data.Select(s => s.InternalId), data.Count);
var keys = new KeyIndexer <object>(data.SelectMany(s => s.Keys), data.Count * 3);
keys.Add(data.SelectMany(s => s.Dependencies));
var keyIndexToEntries = new KeyIndexer <List <ContentCatalogDataEntry>, object>(keys.values, s => new List <ContentCatalogDataEntry>(), keys.values.Count);
var entryToIndex = new Dictionary <ContentCatalogDataEntry, int>(data.Count);
var extraDataList = new List <byte>();
var entryIndexToExtraDataIndex = new Dictionary <int, int>();
int extraDataIndex = 0;
//create buckets of key to data entry
for (int i = 0; i < data.Count; i++)
{
var e = data[i];
int extraDataOffset = -1;
if (e.Data != null)
{
var len = SerializationUtilities.WriteObjectToByteList(e.Data, extraDataList);
if (len > 0)
{
extraDataOffset = extraDataIndex;
extraDataIndex += len;
}
}
entryIndexToExtraDataIndex.Add(i, extraDataOffset);
entryToIndex.Add(e, i);
foreach (var k in e.Keys)
{
keyIndexToEntries[k].Add(e);
}
}
m_ExtraDataString = Convert.ToBase64String(extraDataList.ToArray());
//create extra entries for dependency sets
int originalEntryCount = data.Count;
for (int i = 0; i < originalEntryCount; i++)
{
var entry = data[i];
if (entry.Dependencies == null || entry.Dependencies.Count < 2)
{
continue;
}
//seed and and factor values taken from https://stackoverflow.com/questions/1646807/quick-and-simple-hash-code-combinations
int hashCode = 1009;
foreach (var dep in entry.Dependencies)
{
hashCode = hashCode * 9176 + dep.GetHashCode();
}
bool isNew = false;
keys.Add(hashCode, ref isNew);
if (isNew)
{
//if this combination of dependecies is new, add a new entry and add its key to all contained entries
var deps = entry.Dependencies.Select(d => keyIndexToEntries[d][0]).ToList();
keyIndexToEntries.Add(hashCode, deps);
foreach (var dep in deps)
{
dep.Keys.Add(hashCode);
}
}
//reset the dependency list to only contain the key of the new set
entry.Dependencies.Clear();
entry.Dependencies.Add(hashCode);
}
//serialize internal ids and providers
m_InternalIds = internalIds.values.ToArray();
m_ProviderIds = providers.values.ToArray();
//serialize entries
{
var entryData = new byte[data.Count * 4 * 5 + 4];
var entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, data.Count, 0);
for (int i = 0; i < data.Count; i++)
{
var e = data[i];
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, internalIds.map[e.InternalId], entryDataOffset);
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, providers.map[e.Provider], entryDataOffset);
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, e.Dependencies.Count == 0 ? -1 : keyIndexToEntries.map[e.Dependencies[0]], entryDataOffset);
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, e.ComputeDependencyHash(), entryDataOffset);
entryDataOffset = SerializationUtilities.WriteInt32ToByteArray(entryData, entryIndexToExtraDataIndex[i], entryDataOffset);
}
m_EntryDataString = Convert.ToBase64String(entryData);
}
//serialize keys and mappings
{
var entryCount = keyIndexToEntries.values.Aggregate(0, (a, s) => a += s.Count);
var bucketData = new byte[4 + keys.values.Count * 8 + entryCount * 4];
var keyData = new List <byte>(keys.values.Count * 10);
keyData.AddRange(BitConverter.GetBytes(keys.values.Count));
int keyDataOffset = 4;
int bucketDataOffset = SerializationUtilities.WriteInt32ToByteArray(bucketData, keys.values.Count, 0);
for (int i = 0; i < keys.values.Count; i++)
{
var key = keys.values[i];
bucketDataOffset = SerializationUtilities.WriteInt32ToByteArray(bucketData, keyDataOffset, bucketDataOffset);
keyDataOffset += SerializationUtilities.WriteObjectToByteList(key, keyData);
var entries = keyIndexToEntries[key];
bucketDataOffset = SerializationUtilities.WriteInt32ToByteArray(bucketData, entries.Count, bucketDataOffset);
foreach (var e in entries)
{
bucketDataOffset = SerializationUtilities.WriteInt32ToByteArray(bucketData, entryToIndex[e], bucketDataOffset);
}
}
m_BucketDataString = Convert.ToBase64String(bucketData);
m_KeyDataString = Convert.ToBase64String(keyData.ToArray());
}
}
public string Decrypt(string cipherText)
{
int[] num = new int[Key.Length];
int[] back = new int[Key.Length];
string[] columns = new string[Key.Length];
int minNum;
StringBuilder output = new StringBuilder();
minNum = cipherText.Length / Key.Length;
KeyIndexer key = new KeyIndexer();
for (int i = 0; i < Key.Length; i++)
{
for (int j = 0; j < alphabet.Length; j++)
{
if (Key[i] == alphabet[j])
{
key.Add(i, j);
}
}
}
key.ReindexValues();
for (int i = 0; i < num.Length; i++)
{
num[i] = minNum;
back[key[i]] = i;
}
int k = 0;
for (int j = minNum * Key.Length; j < cipherText.Length; j++)
{
num[key[k++]]++;
}
for (int i = 0; i < Key.Length; i++)
{
columns[back[i]] = cipherText.Substring(0, num[i]);
cipherText = cipherText.Substring(num[i], cipherText.Length - num[i]);
}
for (int i = 0; i < minNum + 1; i++)
{
for (int j = 0; j < columns.Length; j++)
{
if (columns[j].Length > i)
{
output.Append(columns[j][i]);
}
}
}
return output.ToString();
//StringBuilder output = new StringBuilder(cipherText.ToUpper());
//StringBuilder descramble = new StringBuilder(cipherText.ToUpper());
//Dictionary<int, int> temp = new Dictionary<int, int>();
//for (int i = 0; i < Key.Length; i++)
//{
// for (int j = 0; j < alphabet.Length; j++)
// {
// if (Key[i] == alphabet[j])
// {
// temp.Add(j, i);
// }
// }
//}
//List<int> locations = new List<int>(temp.Keys);
//locations.Sort();
//Dictionary<int, int> indices = new Dictionary<int, int>();
//for (int i = 0; i < locations.Count; i++)
//{
// indices.Add(i, temp[locations[i]]);
//}
//int rows = output.Length / Key.Length;
//if (output.Length % Key.Length != 0)
//{
// rows++;
//}
//int k = 0;
//for (int j = 0; j < rows; j++)
//{
// for (int i = j; i < output.Length; i += rows)
// {
// descramble[k++] = cipherText[i];
// }
//}
//k = 0;
//for (int j = 0; j < Key.Length; j++)
//{
// for (int i = 0; i < output.Length; i += Key.Length)
// {
// if (i + indices[j] < output.Length && i + j < output.Length)
// {
// output[i + indices[j]] = descramble[j + i];
// }
// }
//}
//return output.ToString();
}
public string Encrypt(string clearText)
{
StringBuilder output = new StringBuilder();
KeyIndexer key = new KeyIndexer();
for (int i = 0; i < Key.Length; i++)
{
for (int j = 0; j < alphabet.Length; j++)
{
if (Key[i] == alphabet[j])
{
key.Add(i, j);
}
}
}
key.KeyedBy = KeyedBy.Value;
for (int i = 0; i < Key.Length; i++)
{
for (int j = key[i]; j < clearText.Length; j += Key.Length)
{
output.Append(clearText[j]);
}
}
return output.ToString();
}
public string Decrypt(string cipherText)
{
int[] num = new int[Key.Length];
int[] back = new int[Key.Length];
string[] columns = new string[Key.Length];
int minNum;
StringBuilder output = new StringBuilder();
minNum = cipherText.Length / Key.Length;
KeyIndexer key = new KeyIndexer();
for (int i = 0; i < Key.Length; i++)
{
for (int j = 0; j < alphabet.Length; j++)
{
if (Key[i] == alphabet[j])
{
key.Add(i, j);
}
}
}
key.ReindexValues();
for (int i = 0; i < num.Length; i++)
{
num[i] = minNum;
back[key[i]] = i;
}
int k = 0;
for (int j = minNum * Key.Length; j < cipherText.Length; j++)
{
num[key[k++]]++;
}
for (int i = 0; i < Key.Length; i++)
{
columns[back[i]] = cipherText.Substring(0, num[i]);
cipherText = cipherText.Substring(num[i], cipherText.Length - num[i]);
}
for (int i = 0; i < minNum + 1; i++)
{
for (int j = 0; j < columns.Length; j++)
{
if (columns[j].Length > i)
{
output.Append(columns[j][i]);
}
}
}
return(output.ToString());
//StringBuilder output = new StringBuilder(cipherText.ToUpper());
//StringBuilder descramble = new StringBuilder(cipherText.ToUpper());
//Dictionary<int, int> temp = new Dictionary<int, int>();
//for (int i = 0; i < Key.Length; i++)
//{
// for (int j = 0; j < alphabet.Length; j++)
// {
// if (Key[i] == alphabet[j])
// {
// temp.Add(j, i);
// }
// }
//}
//List<int> locations = new List<int>(temp.Keys);
//locations.Sort();
//Dictionary<int, int> indices = new Dictionary<int, int>();
//for (int i = 0; i < locations.Count; i++)
//{
// indices.Add(i, temp[locations[i]]);
//}
//int rows = output.Length / Key.Length;
//if (output.Length % Key.Length != 0)
//{
// rows++;
//}
//int k = 0;
//for (int j = 0; j < rows; j++)
//{
// for (int i = j; i < output.Length; i += rows)
// {
// descramble[k++] = cipherText[i];
// }
//}
//k = 0;
//for (int j = 0; j < Key.Length; j++)
//{
// for (int i = 0; i < output.Length; i += Key.Length)
// {
// if (i + indices[j] < output.Length && i + j < output.Length)
// {
// output[i + indices[j]] = descramble[j + i];
// }
// }
//}
//return output.ToString();
}
public string Decrypt(string cipherText)
{
KeyIndexer oto = new KeyIndexer();
for (int i = 0; i < Key.Length; i++)
{
oto.Add(i, Key[i]);
}
oto.KeyedBy = KeyedBy.Value;
int lastChar = cipherText.Length % 3;//r=0, 2 means no special consideration when decrypting, mod = 1 means single should be double char
int numPositions = 2 * (cipherText.Length / 3);
if (lastChar != 0)
{
numPositions++;
}
int numRows = numPositions / Key.Length;
int remainder = numPositions % Key.Length;
string[,] pieces = new string[numRows + 1, Key.Length];
int k = 0;
for (int i = 0; i < oto.Count; i++)
{
int x = oto[i];
for (int j = 0; j < numRows + (x < remainder ? 1 : 0); j++)
{
if ((x & 0x01) == 0)
{
if ((j & 0x01) == 0)
{
pieces[j, x] = cipherText[k++].ToString();
if (k < cipherText.Length && !(x == remainder - 1 && lastChar == 1 && j == numRows - 1 + (x < remainder ? 1 : 0)))
{
pieces[j, x] += cipherText[k++].ToString();
}
}
else
{
pieces[j, x] = cipherText[k++].ToString();
}
}
else
{
if ((j & 0x01) == 1)
{
pieces[j, x] = cipherText[k++].ToString();
if (k < cipherText.Length && !(x == remainder - 1 && lastChar == 1 && j == numRows - 1 + (x < remainder ? 1 : 0)))
{
pieces[j, x] += cipherText[k++].ToString();
}
}
else
{
pieces[j, x] = cipherText[k++].ToString();
}
}
}
}
StringBuilder output = new StringBuilder();
for (int i = 0; i < numRows + (remainder > 0?1:0); i++)
{
for (int j = 0; j < Key.Length; j++)
{
output.Append(pieces[i, j] ?? "");
}
}
return(output.ToString());
}