/// <summary>
/// Initializes a new instance of the <see cref="PipelinedSimpleModulusEncryptor" /> class.
/// </summary>
/// <param name="target">The target pipe writer.</param>
/// <param name="encryptionKeys">The encryption keys.</param>
public PipelinedSimpleModulusEncryptor(PipeWriter target, SimpleModulusKeys encryptionKeys)
{
this.target = target;
this.encryptionKeys = encryptionKeys;
this.Source = this.Pipe.Reader;
this.ReadSource().ConfigureAwait(false);
}
/// <summary>
/// Initializes a new instance of the <see cref="PipelinedSimpleModulusDecryptor"/> class.
/// </summary>
/// <param name="source">The source.</param>
/// <param name="decryptionKeys">The decryption keys.</param>
public PipelinedSimpleModulusDecryptor(PipeReader source, SimpleModulusKeys decryptionKeys)
: base(decryptionKeys.DecryptKey.Length == 4 ? Variant.New : Variant.Old)
{
this.Source = source;
this.decryptionKeys = decryptionKeys;
this.inputBuffer = new byte[this.EncryptedBlockSize];
this.ReadSource().ConfigureAwait(false);
}
/// <summary>
/// Initializes a new instance of the <see cref="PipelinedSimpleModulusEncryptor" /> class.
/// </summary>
/// <param name="target">The target pipe writer.</param>
/// <param name="encryptionKeys">The encryption keys.</param>
public PipelinedSimpleModulusEncryptor(PipeWriter target, SimpleModulusKeys encryptionKeys)
: base(encryptionKeys.DecryptKey.Length == 4 ? Variant.New : Variant.Old)
{
this.target = target;
this.encryptionKeys = encryptionKeys;
this.Source = this.Pipe.Reader;
this.inputBuffer = new byte[this.DecryptedBlockSize];
this.ReadSource().ConfigureAwait(false);
}
/// <summary>
/// Generates a new pair of keys.
/// </summary>
/// <returns>The generated pair of new keys.</returns>
public async Task <SimpleModulusKeys> GenerateKeys()
{
var result = new SimpleModulusKeys();
do
{
for (int i = 0; i < 4; i++)
{
this.FindKeys(out uint xorKey, out uint modulusKey, out uint encryptKey, out uint decryptKey);
result.ModulusKey[i] = modulusKey;
result.DecryptKey[i] = decryptKey;
result.EncryptKey[i] = encryptKey;
result.XorKey[i] = xorKey;
}
}while (!await this.ValidateResult(result).ConfigureAwait(false));
return(result);
}
/// <summary>
/// Creates an instance of <see cref="SimpleModulusKeys"/> with the crypt key as <see cref="EncryptKey"/>.
/// </summary>
/// <param name="encryptionKey">The decryption key with 12 integers.</param>
/// <returns>An instance of <see cref="SimpleModulusKeys"/> with the crypt key as <see cref="EncryptKey"/>.</returns>
public static SimpleModulusKeys CreateEncryptionKeys(uint[] encryptionKey)
{
var keys = new SimpleModulusKeys();
keys.ModulusKey[0] = encryptionKey[0];
keys.ModulusKey[1] = encryptionKey[1];
keys.ModulusKey[2] = encryptionKey[2];
keys.ModulusKey[3] = encryptionKey[3];
keys.EncryptKey[0] = encryptionKey[4];
keys.EncryptKey[1] = encryptionKey[5];
keys.EncryptKey[2] = encryptionKey[6];
keys.EncryptKey[3] = encryptionKey[7];
keys.XorKey[0] = encryptionKey[8];
keys.XorKey[1] = encryptionKey[9];
keys.XorKey[2] = encryptionKey[10];
keys.XorKey[3] = encryptionKey[11];
return(keys);
}
/// <summary>
/// Generates a new pair of keys.
/// </summary>
/// <returns>The generated pair of new keys.</returns>
public SimpleModulusKeys GenerateKeys()
{
var result = new SimpleModulusKeys();
do
{
for (int i = 0; i < 4; i++)
{
this.FindKeys(out uint xorKey, out uint modulusKey, out uint encryptKey, out uint decryptKey);
result.ModulusKey[i] = modulusKey;
result.DecryptKey[i] = decryptKey;
result.EncryptKey[i] = encryptKey;
result.XorKey[i] = xorKey;
}
}while (!this.ValidateResult(result));
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="PipelinedSimpleModulusEncryptor"/> class.
/// </summary>
/// <param name="target">The target pipe writer.</param>
/// <param name="encryptionKeys">The encryption keys.</param>
public PipelinedSimpleModulusEncryptor(PipeWriter target, uint[] encryptionKeys)
: this(target, SimpleModulusKeys.CreateEncryptionKeys(encryptionKeys))
{
}
private async Task <bool> ValidateResult(SimpleModulusKeys result)
{
return(await this.ValidateKeys(result.GetEncryptionKeys(), result.GetDecryptionKeys()).ConfigureAwait(false));
}
/// <summary>
/// Initializes a new instance of the <see cref="PipelinedSimpleModulusDecryptor"/> class.
/// </summary>
/// <param name="source">The source.</param>
/// <param name="decryptionKey">The decryption key.</param>
public PipelinedSimpleModulusDecryptor(PipeReader source, uint[] decryptionKey)
: this(source, SimpleModulusKeys.CreateDecryptionKeys(decryptionKey))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="SimpleModulusEncryptor" /> class.
/// </summary>
/// <param name="encryptionKeys">The encryption keys.</param>
public SimpleModulusEncryptor(SimpleModulusKeys encryptionKeys)
{
this.encryptionKeys = encryptionKeys;
}
/// <summary>
/// Initializes a new instance of the <see cref="SimpleModulusEncryptor"/> class.
/// </summary>
/// <param name="encryptionKey">The encryption key.</param>
public SimpleModulusEncryptor(uint[] encryptionKey)
: this(SimpleModulusKeys.CreateEncryptionKeys(encryptionKey))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="SimpleModulusDecryptor"/> class.
/// </summary>
/// <param name="decryptionKeys">The decryption keys.</param>
public SimpleModulusDecryptor(SimpleModulusKeys decryptionKeys)
{
this.decryptionKeys = decryptionKeys;
}
/// <summary>
/// Initializes a new instance of the <see cref="SimpleModulusDecryptor"/> class.
/// </summary>
/// <param name="decryptionKey">The decryption key.</param>
public SimpleModulusDecryptor(uint[] decryptionKey)
: this(SimpleModulusKeys.CreateDecryptionKeys(decryptionKey))
{
}
private bool ValidateResult(SimpleModulusKeys result)
{
return(this.ValidateKeys(result.GetEncryptionKeys(), result.GetDecryptionKeys()));
}
/// <summary>
/// Initializes a new instance of the <see cref="PipelinedSimpleModulusDecryptor"/> class.
/// </summary>
/// <param name="source">The source.</param>
/// <param name="decryptionKeys">The decryption keys.</param>
public PipelinedSimpleModulusDecryptor(PipeReader source, SimpleModulusKeys decryptionKeys)
{
this.Source = source;
this.decryptionKeys = decryptionKeys;
this.ReadSource().ConfigureAwait(false);
}
