protected void CreateEncryptionInfoEntry(DirectoryNode dir)
{
DataSpaceMapUtils.AddDefaultDataSpace(dir);
EncryptionInfo info = builder.GetEncryptionInfo();
CryptoAPIEncryptionHeader header = builder.GetHeader();
CryptoAPIEncryptionVerifier verifier = builder.GetVerifier();
EncryptionRecord er = new EncryptionRecordInternal(info, header, verifier);
DataSpaceMapUtils.CreateEncryptionEntry(dir, "EncryptionInfo", er);
}
/**
* Initialize the builder from a stream
*/
public void Initialize(EncryptionInfo info, ILittleEndianInput dis)
{
this.info = info;
int hSize = dis.ReadInt();
header = new CryptoAPIEncryptionHeader(dis);
verifier = new CryptoAPIEncryptionVerifier(dis, header);
decryptor = new CryptoAPIDecryptor(this);
encryptor = new CryptoAPIEncryptor(this);
}
/**
* Initialize the builder from scratch
*/
public void Initialize(EncryptionInfo info,
CipherAlgorithm cipherAlgorithm, HashAlgorithm hashAlgorithm,
int keyBits, int blockSize, ChainingMode chainingMode)
{
this.info = info;
if (cipherAlgorithm == null)
{
cipherAlgorithm = CipherAlgorithm.rc4;
}
if (hashAlgorithm == null)
{
hashAlgorithm = HashAlgorithm.sha1;
}
if (keyBits == -1)
{
keyBits = 0x28;
}
Debug.Assert(cipherAlgorithm == CipherAlgorithm.rc4 && hashAlgorithm == HashAlgorithm.sha1);
header = new CryptoAPIEncryptionHeader(cipherAlgorithm, hashAlgorithm, keyBits, blockSize, chainingMode);
verifier = new CryptoAPIEncryptionVerifier(cipherAlgorithm, hashAlgorithm, keyBits, blockSize, chainingMode);
decryptor = new CryptoAPIDecryptor(this);
encryptor = new CryptoAPIEncryptor(this);
}
protected internal CryptoAPIEncryptionVerifier(ILittleEndianInput is1,
CryptoAPIEncryptionHeader header) :
base(is1, header)
{
}