public string hashCal(string type, string str)
{
StringBuffer hexString = new StringBuffer();
try
{
MessageDigest digestTxID = null;
digestTxID = MessageDigest.GetInstance(type);
digestTxID.Reset();
digestTxID.Update(Encoding.ASCII.GetBytes(str.ToString()));
byte[] messageDigest = digestTxID.Digest();
for (int i = 0; i < messageDigest.Length; i++)
{
string hex = Integer.ToHexString(0xFF & messageDigest[i]);
if (hex.Length == 1)
{
hexString.Append("0");
}
hexString.Append(hex);
}
}
catch (NoSuchAlgorithmException nsae) { }
return(hexString.ToString());
}
protected internal static ISecretKey GenerateSecretKey(String password,
EncryptionVerifier ver)
{
if (password.Length > 255)
{
password = password.Substring(0, 255);
}
HashAlgorithm hashAlgo = ver.HashAlgorithm;
MessageDigest hashAlg = CryptoFunctions.GetMessageDigest(hashAlgo);
byte[] hash = hashAlg.Digest(StringUtil.GetToUnicodeLE(password));
byte[] salt = ver.Salt;
hashAlg.Reset();
for (int i = 0; i < 16; i++)
{
hashAlg.Update(hash, 0, 5);
hashAlg.Update(salt);
}
hash = new byte[5];
Array.Copy(hashAlg.Digest(), 0, hash, 0, 5);
ISecretKey skey = new SecretKeySpec(hash, ver.CipherAlgorithm.jceId);
return(skey);
}
/// <summary>Create a thread local MD5 digester</summary>
public static MessageDigest GetDigester()
{
MessageDigest digester = DigesterFactory.Get();
digester.Reset();
return(digester);
}
private void VerifyLooseObject(AnyObjectId id, byte[] compressed)
{
UnpackedObjectLoader uol;
try
{
uol = new UnpackedObjectLoader(compressed);
}
catch (CorruptObjectException parsingError)
{
// Some HTTP servers send back a "200 OK" status with an HTML
// page that explains the requested file could not be found.
// These servers are most certainly misconfigured, but many
// of them exist in the world, and many of those are hosting
// Git repositories.
//
// Since an HTML page is unlikely to hash to one of our loose
// objects we treat this condition as a FileNotFoundException
// and attempt to recover by getting the object from another
// source.
//
var e = new FileNotFoundException(id.Name, parsingError);
throw e;
}
_objectDigest.Reset();
_objectDigest.Update(Constants.encodedTypeString(uol.Type));
_objectDigest.Update((byte)' ');
_objectDigest.Update(Constants.encodeASCII(uol.Size));
_objectDigest.Update(0);
_objectDigest.Update(uol.CachedBytes);
_idBuffer.FromRaw(_objectDigest.Digest(), 0);
if (!AnyObjectId.equals(id, _idBuffer))
{
throw new TransportException("Incorrect hash for " + id.Name + "; computed " + _idBuffer.Name + " as a " +
Constants.typeString(uol.Type) + " from " + compressed.Length +
" bytes.");
}
if (_objCheck != null)
{
try
{
_objCheck.check(uol.Type, uol.CachedBytes);
}
catch (CorruptObjectException e)
{
throw new TransportException("Invalid " + Constants.typeString(uol.Type) + " " + id.Name + ": " + e.Message);
}
}
}
/**
* Construct LogSignatureVerifiers for each of the trusted CT logs.
*
* @throws InvalidKeySpecException the CT log key isn't RSA or EC, the key is probably corrupt.
* @throws NoSuchAlgorithmException the crypto provider couldn't supply the hashing algorithm or
* the key algorithm. This probably means you are using an ancient or bad crypto provider.
*/
private void buildLogSignatureVerifiers()
{
MessageDigest hasher = MessageDigest.GetInstance(LOG_ID_HASH_ALGORITHM);
foreach (string trustedLogKey in TRUSTED_LOG_KEYS)
{
hasher.Reset();
byte[] keyBytes = Base64.Decode(trustedLogKey);
string logId = Base64.ToBase64String(hasher.Digest(keyBytes));
KeyFactory keyFactory = KeyFactory.GetInstance(determineKeyAlgorithm(keyBytes));
var publicKey = keyFactory.GeneratePublic(new X509EncodedKeySpec(keyBytes));
verifiers.Add(logId, new LogSignatureVerifier(new LogInfo(publicKey)));
}
}
protected byte[] CreateKeyBytes(string key)
{
try
{
MessageDigest md = MessageDigest.GetInstance(SECRET_KEY_HASH_TRANSFORMATION);
md.Reset();
byte[] keyBytes = md.Digest(Encoding.UTF8.GetBytes(key) /*key.GetBytes(CHARSET)*/);
return(keyBytes);
}
catch (UnsupportedEncodingException e)
{
throw new SharedPreferencesManagerException(e);
}
catch (NoSuchAlgorithmException e)
{
throw new SharedPreferencesManagerException(e);
}
}
/// <exception cref="System.IO.IOException"></exception>
private byte[] ComputeHash(InputStream @in, long length)
{
MessageDigest contentDigest = state.contentDigest;
byte[] contentReadBuffer = state.contentReadBuffer;
contentDigest.Reset();
contentDigest.Update(hblob);
contentDigest.Update(unchecked ((byte)' '));
long sz = length;
if (sz == 0)
{
contentDigest.Update(unchecked ((byte)'0'));
}
else
{
int bufn = contentReadBuffer.Length;
int p = bufn;
do
{
contentReadBuffer[--p] = digits[(int)(sz % 10)];
sz /= 10;
}while (sz > 0);
contentDigest.Update(contentReadBuffer, p, bufn - p);
}
contentDigest.Update(unchecked ((byte)0));
for (; ;)
{
int r = @in.Read(contentReadBuffer);
if (r <= 0)
{
break;
}
contentDigest.Update(contentReadBuffer, 0, r);
sz += r;
}
if (sz != length)
{
return(zeroid);
}
return(contentDigest.Digest());
}
public BlobStoreWriter(BlobStore store)
{
this.store = store;
try
{
sha1Digest = MessageDigest.GetInstance("SHA-1");
sha1Digest.Reset();
md5Digest = MessageDigest.GetInstance("MD5");
md5Digest.Reset();
} catch (NotSupportedException e) {
throw Misc.CreateExceptionAndLog(Log.To.Database, e, Tag,
"Could not get an instance of SHA-1 or MD5 for BlobStoreWriter.");
}
try {
OpenTempFile();
} catch (FileNotFoundException e) {
throw Misc.CreateExceptionAndLog(Log.To.Database, e, Tag,
"Unable to open temporary file for BlobStoreWriter.");
}
}
private void VerifyLooseObject(AnyObjectId id, byte[] compressed)
{
UnpackedObjectLoader uol;
try
{
uol = new UnpackedObjectLoader(compressed);
}
catch (CorruptObjectException parsingError)
{
var e = new FileNotFoundException(id.Name, parsingError);
throw e;
}
_objectDigest.Reset();
_objectDigest.Update(Constants.encodedTypeString(uol.Type));
_objectDigest.Update((byte)' ');
_objectDigest.Update(Constants.encodeASCII(uol.Size));
_objectDigest.Update(0);
_objectDigest.Update(uol.CachedBytes);
_idBuffer.FromRaw(_objectDigest.Digest(), 0);
if (!id.Equals(_idBuffer))
{
throw new TransportException("Incorrect hash for " + id.Name + "; computed " + _idBuffer.Name + " as a " +
Constants.typeString(uol.Type) + " from " + compressed.Length +
" bytes.");
}
if (_objCheck != null)
{
try
{
_objCheck.check(uol.Type, uol.CachedBytes);
}
catch (CorruptObjectException e)
{
throw new TransportException("Invalid " + Constants.typeString(uol.Type) + " " + id.Name + ": " + e.Message);
}
}
}
public BlobStoreWriter(BlobStore store)
{
this.store = store;
try
{
sha1Digest = MessageDigest.GetInstance("SHA-1");
sha1Digest.Reset();
md5Digest = MessageDigest.GetInstance("MD5");
md5Digest.Reset();
}
catch (NoSuchAlgorithmException e)
{
throw new InvalidOperationException("Could not get an instance of SHA-1 or MD5.", e);
}
try
{
OpenTempFile();
}
catch (FileNotFoundException e)
{
throw new InvalidOperationException("Unable to open temporary file.", e);
}
}
public BlobStoreWriter(BlobStore store)
{
this.store = store;
try
{
sha1Digest = MessageDigest.GetInstance("SHA-1");
sha1Digest.Reset();
md5Digest = MessageDigest.GetInstance("MD5");
md5Digest.Reset();
}
catch (NoSuchAlgorithmException e)
{
throw new InvalidOperationException(e);
}
try
{
OpenTempFile();
}
catch (FileNotFoundException e)
{
throw new InvalidOperationException(e);
}
}
public BlobStoreWriter(BlobStore store)
{
this.store = store;
try
{
sha1Digest = MessageDigest.GetInstance("SHA-1");
sha1Digest.Reset();
md5Digest = MessageDigest.GetInstance("MD5");
md5Digest.Reset();
}
catch (NoSuchAlgorithmException e)
{
throw new InvalidOperationException(e);
}
try
{
OpenTempFile();
}
catch (FileNotFoundException e)
{
throw new InvalidOperationException(e);
}
}
protected void EngineReset()
{
_md5.Reset();
_md5.Update(_ipad);
}
/// <returns>digest to help compute an ObjectId</returns>
protected internal virtual MessageDigest Digest()
{
digest.Reset();
return(digest);
}
public BlobStoreWriter(BlobStore store)
{
this.store = store;
try
{
sha1Digest = MessageDigest.GetInstance("SHA-1");
sha1Digest.Reset();
md5Digest = MessageDigest.GetInstance("MD5");
md5Digest.Reset();
}
catch (NoSuchAlgorithmException e)
{
throw new InvalidOperationException("Could not get an instance of SHA-1 or MD5." , e);
}
try
{
OpenTempFile();
}
catch (FileNotFoundException e)
{
throw new InvalidOperationException("Unable to open temporary file.", e);
}
}
internal ObjectId WriteObject(ObjectType type, long len, Stream input, bool store)
{
FileInfo info;
DeflaterOutputStream stream;
FileStream stream2;
ObjectId objectId = null;
if (store)
{
info = _r.ObjectsDirectory.CreateTempFile("noz");
stream2 = info.OpenWrite();
}
else
{
info = null;
stream2 = null;
}
_md.Reset();
if (store)
{
_def.Reset();
stream = new DeflaterOutputStream(stream2, _def);
}
else
{
stream = null;
}
try
{
int num;
byte[] bytes = Codec.EncodedTypeString(type);
_md.Update(bytes);
if (stream != null)
{
stream.Write(bytes, 0, bytes.Length);
}
_md.Update(0x20);
if (stream != null)
{
stream.WriteByte(0x20);
}
bytes = Constants.encodeASCII(len.ToString());
_md.Update(bytes);
if (stream != null)
{
stream.Write(bytes, 0, bytes.Length);
}
_md.Update(0);
if (stream != null)
{
stream.WriteByte(0);
}
while ((len > 0L) && ((num = input.Read(_buf, 0, (int)Math.Min(len, _buf.Length))) > 0))
{
_md.Update(_buf, 0, num);
if (stream != null)
{
stream.Write(_buf, 0, num);
}
len -= num;
}
if (len != 0L)
{
throw new IOException("Input did not match supplied Length. " + len + " bytes are missing.");
}
if (stream != null)
{
stream.Close();
if (info != null)
{
info.IsReadOnly = true;
}
}
objectId = ObjectId.FromRaw(_md.Digest());
}
finally
{
if ((objectId == null) && (stream != null))
{
try
{
stream.Close();
}
finally
{
info.DeleteFile();
}
}
}
if (info != null)
{
if (_r.HasObject(objectId))
{
// Object is already in the repository so remove
// the temporary file.
//
info.DeleteFile();
}
else
{
FileInfo info2 = _r.ToFile(objectId);
if (!info.RenameTo(info2.FullName))
{
// Maybe the directory doesn't exist yet as the object
// directories are always lazily created. Note that we
// try the rename first as the directory likely does exist.
//
if (info2.Directory != null)
{
info2.Directory.Create();
}
if (!info.RenameTo(info2.FullName) && !_r.HasObject(objectId))
{
// The object failed to be renamed into its proper
// location and it doesn't exist in the repository
// either. We really don't know what went wrong, so
// fail.
//
info.DeleteFile();
throw new ObjectWritingException("Unable to create new object: " + info2);
}
}
}
}
return(objectId);
}