private void SetUp(long length) {
this.transmission = new Transmission(TransmissionType.DOWNLOAD_NEW_FILE, "testfile");
this.transmission.AddDefaultConstraints();
if (this.localFileStream != null) {
this.localFileStream.Dispose();
}
this.localFileStream = new MemoryStream();
if (this.hashAlg != null) {
this.hashAlg.Dispose();
}
this.hashAlg = new SHA1Managed();
this.remoteLength = length;
this.remoteContent = new byte[this.remoteLength];
if (this.random != null) {
this.random.Dispose();
}
this.random = RandomNumberGenerator.Create();
this.random.GetBytes(this.remoteContent);
this.mockedMemStream = new Mock<MemoryStream>(this.remoteContent) { CallBase = true };
this.mockedStream = new Mock<IContentStream>();
this.mockedStream.Setup(stream => stream.Length).Returns(this.remoteLength);
this.mockedStream.Setup(stream => stream.Stream).Returns(this.mockedMemStream.Object);
this.mockedDocument = new Mock<IDocument>();
this.mockedDocument.Setup(doc => doc.ContentStreamLength).Returns(this.remoteLength);
this.mockedDocument.Setup(doc => doc.GetContentStream()).Returns(this.mockedStream.Object);
}
public Hasher(string hashType, string valueToHash)
{
_hashType = GetHashAlgorithm(hashType);
if (!String.IsNullOrEmpty(valueToHash) && valueToHash != _valueToHash)
_valueToHash = valueToHash;
}
public static Tuple<byte[], string> HashFile(HashAlgorithm ha, string file)
{
using (var fs = File.OpenRead(file))
{
return new Tuple<byte[], string>(ha.ComputeHash(fs), file);
}
}
public VartotojaiController(IAuthenticationProvider authenticationProvider, ISessionFactory sessionFactory, [LoggedIn] UserInformation loggedInUser, HashAlgorithm hashAlgorithm)
{
_authenticationProvider = authenticationProvider;
_sessionFactory = sessionFactory;
_loggedInUser = loggedInUser;
_hashAlgorithm = hashAlgorithm;
}
public HashcodeGenerator (String key, HashAlgorithm algorithm, String format, Guid guid, bool returnBase64, params object[] hashArray) {
_returnBase64 = returnBase64;
_hashArray = hashArray;
_algorithm = algorithm;
_format = format;
_key = FormatKey(key, _format);
}
public static string Hash(this string plaintext, HashAlgorithm algorithm)
{
if (string.IsNullOrEmpty(plaintext))
throw new ArgumentNullException("plaintext", "Cannot hash an empty string.");
var clearBuffer = UTF8Encoding.Default.GetBytes(plaintext);
return Hash(clearBuffer, algorithm);
}
public HashingStreamEx(Stream sBaseStream, bool bWriting, HashAlgorithm hashAlgorithm)
{
if(sBaseStream == null) throw new ArgumentNullException("sBaseStream");
m_sBaseStream = sBaseStream;
m_bWriting = bWriting;
#if !KeePassLibSD
m_hash = (hashAlgorithm ?? new SHA256Managed());
#else // KeePassLibSD
m_hash = null;
try { m_hash = HashAlgorithm.Create("SHA256"); }
catch(Exception) { }
try { if(m_hash == null) m_hash = HashAlgorithm.Create(); }
catch(Exception) { }
#endif
if(m_hash == null) { Debug.Assert(false); return; }
// Validate hash algorithm
if((!m_hash.CanReuseTransform) || (!m_hash.CanTransformMultipleBlocks) ||
(m_hash.InputBlockSize != 1) || (m_hash.OutputBlockSize != 1))
{
#if DEBUG
MessageService.ShowWarning("Broken HashAlgorithm object in HashingStreamEx.");
#endif
m_hash = null;
}
}
public void ComputeHash(HashAlgorithm hash)
{
byte[] tmp = Encoding.UTF8.GetBytes (_name);
hash.TransformBlock (tmp, 0, tmp.Length, null, 0);
tmp = Encoding.UTF8.GetBytes (_body);
hash.TransformBlock (tmp, 0, tmp.Length, null, 0);
}
internal void CalculateHa1(string realm, HashAlgorithm hashAlgorithm)
{
Ha1 =
Helpers.HexEncode(
hashAlgorithm.ComputeHash(Encoding.UTF8.GetBytes(string.Format("{0}:{1}:{2}", Username, realm, _password))));
_password = null;
}
public static string HashWith(this string input, HashAlgorithm algorithm)
{
byte[] data = Encoding.UTF8.GetBytes(input);
byte[] hash = algorithm.ComputeHash(data);
return Convert.ToBase64String(hash);
}
public static bool ValidateChecksum(HashAlgorithm hashAlgorithm, Stream checksumFile, string filenameToCheck, Stream fileToCheck)
{
// Find the checksum...
string checksum = null;
using (var checksumFileReader = new StreamReader(checksumFile, Encoding.ASCII, false, 256, true))
{
while (checksum == null)
{
var line = checksumFileReader.ReadLine();
if (line == null)
break;
line = line.Trim();
var parts = line.Split(new[] { ' ', '\t' }, 2, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length != 2)
throw new ArgumentException("Invalid format of input file");
if (parts[1] == filenameToCheck)
checksum = parts[0];
}
}
if (checksum == null)
throw new ArgumentException($"Could not find checksum for file {filenameToCheck} in checksumFile");
byte[] hash = hashAlgorithm.ComputeHash(fileToCheck);
var formattedHash = FormatHash(hash);
return formattedHash == checksum;
}
/// <summary>
/// Creates a message digest using the specified name to set Algorithm property.
/// </summary>
/// <param name="algorithm">The name of the algorithm to use</param>
public MD5Support(string algorithm)
{
var algorithmName = algorithm.Equals("SHA-1") ? "SHA" : algorithm;
_algorithm = (HashAlgorithm) CryptoConfig.CreateFromName(algorithmName);
data = new byte[0];
_position = 0;
}
private bool TestSha(HashAlgorithm alg1, HashAlgorithm alg2)
{
string tstStr = "This is a string that I will be getting the hash of!";
byte[] testHash = System.Text.UTF8Encoding.UTF8.GetBytes(tstStr);
byte[] hash1 = alg1.ComputeHash(testHash, 0, testHash.Length);
byte[] hash2 = alg1.ComputeHash(testHash, 0, testHash.Length);
byte[] hash3 = alg1.ComputeHash(testHash, 0, testHash.Length - 1);
byte[] hash4 = alg2.ComputeHash(testHash);
byte[] hash5 = alg2.ComputeHash(testHash, 0, testHash.Length - 1);
if (hash1.Length != (alg1.HashSize/8)) throw new Exception();
bool res1 = true, res2 = true, res3 = true, res4 = true;
for (int i = 0; i < hash1.Length; i++)
{
res1 &= (hash1[i] == hash2[i]);
res2 &= (hash1[i] == hash3[i]);
res3 &= (hash1[i] == hash4[i]);
res4 &= (hash3[i] == hash5[i]);
}
return res1 && !res2 && res3 && res4;
}
public static string GenerateStringHash(string stringForHashing, HashAlgorithm hashAlgorithm)
{
if (hashAlgorithm is KeyedHashAlgorithm)
throw new NotSupportedException("It is impossible to create Hash with KeyedHashAlgorithm and empty Salt");
return GenerateStringHash(stringForHashing, string.Empty, hashAlgorithm);
}
private static string Hash(byte[] clearBuffer, HashAlgorithm algorithm)
{
System.Security.Cryptography.HashAlgorithm hashAlgorithm;
switch (algorithm)
{
case HashAlgorithm.MD5:
hashAlgorithm = new MD5CryptoServiceProvider();
break;
case HashAlgorithm.SHA1:
default:
hashAlgorithm = new SHA1CryptoServiceProvider();
break;
case HashAlgorithm.SHA256:
hashAlgorithm = new SHA256CryptoServiceProvider();
break;
case HashAlgorithm.SHA384:
hashAlgorithm = new SHA384CryptoServiceProvider();
break;
case HashAlgorithm.SHA512:
hashAlgorithm = new SHA512CryptoServiceProvider();
break;
}
var encryptedBuffer = hashAlgorithm.ComputeHash(clearBuffer);
return Convert.ToBase64String(encryptedBuffer);
}
/// <summary>
/// Initializes a new instance of the <see cref="SaltedHash"/> class.
/// </summary>
/// <param name="hashAlgorithm">A <see cref="HashAlgorithm"/> HashAlgorihm which is derived from HashAlgorithm. C# provides
/// the following classes: SHA1Managed,SHA256Managed, SHA384Managed, SHA512Managed and MD5CryptoServiceProvider</param>
/// <param name="saltLength">Length of the salt.</param>
public SaltedHash(HashAlgorithm hashAlgorithm, int saltLength)
{
Check.NotNull(hashAlgorithm, nameof(hashAlgorithm));
Check.Positive(saltLength, nameof(saltLength));
this.hashAlgorithm = hashAlgorithm;
this.saltLength = saltLength;
}
public static byte[] DoubleDigest(byte[] input, int offset, int length)
{
_digest.Dispose();
_digest = new SHA256CryptoServiceProvider();
byte[] first = _digest.ComputeHash(input, offset, length);
return _digest.ComputeHash(first);
}
/// <summary>
/// File content hash calculation
/// </summary>
/// <example>
/// <code>
/// // Implementation of <see cref="CalculateSha256Hash"/>
/// public static QuickIOHashResult CalculateSha256Hash( QuickIOPathInfo pathInfo )
/// {
/// using ( var fs = OpenRead( pathInfo ) )
/// using ( var hashAlgorithm = SHA256.Create( ) )
/// {
/// return CalculateHash( hashAlgorithm, fs );
/// }
/// }
/// </code>
/// </example>
/// <returns><see cref="QuickIOHashResult"/></returns>
public static QuickIOHashResult CalculateHash( HashAlgorithm hashAlgorithm, Stream stream )
{
Contract.Requires( hashAlgorithm != null );
Contract.Requires( stream != null );
return new QuickIOHashResult( hashAlgorithm.ComputeHash( stream ) );
}
/// <summary>
/// Encodes the hash. The resulting string is a simple 2-char hex encoded string.
/// If you like base64 just use Convert.ToBase64String(); instead of ByteArrayToString();
/// </summary>
/// <param name="message">The message to encode.</param>
/// <param name="algorithm">The Hashing algorithm.</param>
/// <returns>Hex encoded hash value.</returns>
private static string EncodeHash(string message, HashAlgorithm algorithm)
{
string saltedMessage = string.Format(CultureInfo.CurrentCulture, "ChocolateSaltyBalls{0}AreSoSalty!", message);
byte[] saltedBytes = new UTF8Encoding().GetBytes(saltedMessage);
return BitConverter.ToString(algorithm.ComputeHash(saltedBytes)).Replace("-", string.Empty);
}
protected int StartTests(HashAlgorithm hash, byte[] input, byte[] result)
{
try {
byte[] ch = hash.ComputeHash(input, 0, input.Length);
if (!ArrayEquals(ch, result))
AddError("HB-ST1");
} catch {
AddError("HB-ST2");
}
try {
// feed input byte-by-byte
for(int i = 0; i < input.Length - 1; i++) {
hash.TransformBlock(input, i, 1, input, i);
}
if (input.Length > 0)
hash.TransformFinalBlock(input, input.Length - 1, 1);
else
hash.TransformFinalBlock(input, 0, 0);
if (!ArrayEquals(hash.Hash, result)) {
AddError("HB-ST3");
Console.WriteLine(Encoding.ASCII.GetString(input));
}
} catch {
AddError("HB-ST4");
} finally {
hash.Initialize();
}
return 4;
}
public static string computeHash(string password, HashAlgorithm algorithm)
{
Byte[] inputBytes = Encoding.UTF8.GetBytes(password);
Byte[] hashedBytes = algorithm.ComputeHash(inputBytes);
return BitConverter.ToString(hashedBytes);
}
/// <summary>
/// Initializes a new StringEncryption instance.
/// </summary>
/// <param name="bulkCipher">The bulk cipher algorithm to use.</param>
/// <param name="hash">The hash algorithm to use.</param>
/// <exception cref="ArgumentNullException">One of the parameters is a null reference.</exception>
public StringEncryption(SymmetricAlgorithm bulkCipher, HashAlgorithm hash) {
if (bulkCipher == null)
throw new ArgumentNullException("bulkCipher", ResourceController.GetString("Error_ParamNull"));
if (hash == null)
throw new ArgumentNullException("hash", ResourceController.GetString("Error_ParamNull"));
Init(bulkCipher, hash);
}
public RSASigner(RSACryptoServiceProvider provider)
{
_rsaCrypto = provider;
_blockLength = _rsaCrypto.ExportParameters(false).Modulus.Length;
_maxBlockLengthWithPadding = _blockLength - Padding;
_algorithm = SHA1.Create();
}
internal static int GetCode(
HashAlgorithm algorithm,
string secret,
long counter,
int digits)
{
Contract.Requires<ArgumentOutOfRangeException>(Enum.IsDefined(typeof(HashAlgorithm), algorithm));
Contract.Requires<ArgumentOutOfRangeException>(algorithm != HashAlgorithm.Unknown);
Contract.Requires<ArgumentNullException>(secret != null);
Contract.Requires<ArgumentOutOfRangeException>(counter >= 0);
Contract.Requires<ArgumentOutOfRangeException>(digits > 0);
Contract.Ensures(Contract.Result<int>() > 0);
Contract.Ensures(Contract.Result<int>() < Math.Pow(10, digits));
var generator = HMAC.Create(algorithm.ToAlgorithmName());
generator.Key = Encoding.ASCII.GetBytes(secret);
generator.ComputeHash(CounterToBytes(counter));
var hmac =
generator
.Hash
.Select(b => Convert.ToInt32(b))
.ToArray();
var offset = hmac[19] & 0xF;
var code =
(hmac[offset + 0] & 0x7F) << 24
| (hmac[offset + 1] & 0xFF) << 16
| (hmac[offset + 2] & 0xFF) << 8
| (hmac[offset + 3] & 0xFF);
return code % (int) Math.Pow(10, digits);
}
public static string GetHashString(string filePath)
{
FileInfo file = new FileInfo(filePath);
if (!file.Exists)
{
return("");
}
byte[] bytes1 = System.Text.Encoding.ASCII.GetBytes("blob " + file.Length.ToString() + '\0'.ToString());
byte[] bytes2 = File.ReadAllBytes(file.FullName);
List <byte> temp = new List <byte>();
temp.AddRange(bytes1);
temp.AddRange(bytes2);
byte[] bytes = temp.ToArray();
System.Security.Cryptography.HashAlgorithm algorithm = System.Security.Cryptography.SHA1.Create();
System.Text.StringBuilder sb = new System.Text.StringBuilder();
foreach (byte b in algorithm.ComputeHash(bytes))
{
sb.Append(b.ToString("X2"));
}
return(sb.ToString().ToLower());
}
public HashingStreamEx(Stream sBaseStream, bool bWriting, HashAlgorithm hashAlgorithm)
{
if(sBaseStream == null) throw new ArgumentNullException("sBaseStream");
m_sBaseStream = sBaseStream;
m_bWriting = bWriting;
#if !KeePassLibSD
m_hash = (hashAlgorithm ?? new SHA256Managed());
#else // KeePassLibSD
m_hash = null;
try { m_hash = HashAlgorithm.Create("SHA256"); }
catch(Exception) { }
try { if(m_hash == null) m_hash = HashAlgorithm.Create(); }
catch(Exception) { }
#endif
if(m_hash == null) { Debug.Assert(false); return; }
// Validate hash algorithm
if(!m_hash.CanReuseTransform || !m_hash.CanTransformMultipleBlocks)
{
Debug.Assert(false);
m_hash = null;
}
}
/// <summary>Compute hash on input string</summary>
/// <param name="file">The file to get hash from.</param>
/// <param name="algorithm"> </param>
/// <returns>The hash as a hexadecimal String.</returns>
public static string ComputeHash(this FileInfo file, HashAlgorithm algorithm)
{
using (var stream = new BufferedStream(file.OpenRead(), 1024 * 8))
{
return ComputeHash(stream, algorithm);
}
}
/// <summary>
/// Constructor for HashStream. The HashAlgorithm instance is owned by the caller.
/// </summary>
public HashStream(HashAlgorithm hash)
{
if (hash == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("hash");
Reset(hash);
}
public void WriteHash(HashAlgorithm hash, DocPosition docPos, AncestralNamespaceContextManager anc)
{
if (this.IsInNodeSet)
{
byte[] bytes;
UTF8Encoding encoding = new UTF8Encoding(false);
if (docPos == DocPosition.AfterRootElement)
{
bytes = encoding.GetBytes("(char) 10");
hash.TransformBlock(bytes, 0, bytes.Length, bytes, 0);
}
bytes = encoding.GetBytes("<?");
hash.TransformBlock(bytes, 0, bytes.Length, bytes, 0);
bytes = encoding.GetBytes(this.Name);
hash.TransformBlock(bytes, 0, bytes.Length, bytes, 0);
if ((this.Value != null) && (this.Value.Length > 0))
{
bytes = encoding.GetBytes(" " + this.Value);
hash.TransformBlock(bytes, 0, bytes.Length, bytes, 0);
}
bytes = encoding.GetBytes("?>");
hash.TransformBlock(bytes, 0, bytes.Length, bytes, 0);
if (docPos == DocPosition.BeforeRootElement)
{
bytes = encoding.GetBytes("(char) 10");
hash.TransformBlock(bytes, 0, bytes.Length, bytes, 0);
}
}
}
/// <summary>
/// Constructor
/// </summary>
/// <remarks>If <paramref name="hashAlgo"/> is an unsupported hash algorithm, then
/// <see cref="AssemblyHashAlgorithm.SHA1"/> will be used as the hash algorithm.</remarks>
/// <param name="hashAlgo">The algorithm to use</param>
public AssemblyHash(AssemblyHashAlgorithm hashAlgo) {
switch (hashAlgo) {
case AssemblyHashAlgorithm.MD5:
hasher = MD5.Create();
break;
case AssemblyHashAlgorithm.None:
case AssemblyHashAlgorithm.MD2:
case AssemblyHashAlgorithm.MD4:
case AssemblyHashAlgorithm.SHA1:
case AssemblyHashAlgorithm.MAC:
case AssemblyHashAlgorithm.SSL3_SHAMD5:
case AssemblyHashAlgorithm.HMAC:
case AssemblyHashAlgorithm.TLS1PRF:
case AssemblyHashAlgorithm.HASH_REPLACE_OWF:
default:
hasher = SHA1.Create();
break;
case AssemblyHashAlgorithm.SHA_256:
hasher = SHA256.Create();
break;
case AssemblyHashAlgorithm.SHA_384:
hasher = SHA384.Create();
break;
case AssemblyHashAlgorithm.SHA_512:
hasher = SHA512.Create();
break;
}
}
public ColumnsSettingsProvider(string docPath)
{
_algorithm = new RijndaelManaged();
_hashAlgorithm = new SHA384Managed();
SetDocument(docPath);
}
//获取Hash描述表
public bool GetHash(System.IO.FileStream objFile, ref string strHashData)
{
//从文件中取得Hash描述
byte[] HashData;
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
HashData = MD5.ComputeHash(objFile);
objFile.Close();
strHashData = Convert.ToBase64String(HashData);
return(true);
}
//获取Hash描述表
public bool GetHash(string m_strSource, ref string strHashData)
{
//从字符串中取得Hash描述
byte[] Buffer;
byte[] HashData;
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
Buffer = System.Text.Encoding.GetEncoding("GB2312").GetBytes(m_strSource);
HashData = MD5.ComputeHash(Buffer);
strHashData = Convert.ToBase64String(HashData);
return(true);
}
/// <summary> compute the file's MD5 value </summary>
/// <param name="fileName">file's name</param>
/// <returns> the file's MD5 value</returns>
public static string GetMD5Hash(string fileName)
{
if (!File.Exists(fileName))
{
return(string.Empty);
}
using (FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read))
{
System.Security.Cryptography.HashAlgorithm md5 = System.Security.Cryptography.MD5.Create();
return(BitConverter.ToString(md5.ComputeHash(fs)).Replace("-", ""));
}
}
public static byte[] BaseHash(this string source, System.Security.Cryptography.HashAlgorithm algorithm, string encoding)
{
byte[] inputBytes = Encoding.GetEncoding(encoding).GetBytes(source);
if (algorithm == null)
{
return(inputBytes);
}
using (algorithm)
{
return(algorithm.ComputeHash(inputBytes));
}
}
internal string GetFileSha512(string fileSavePath)
{
Utils utils = new Utils();
System.Security.Cryptography.HashAlgorithm ha = System.Security.Cryptography.SHA512.Create();
FileStream fs = new FileStream(fileSavePath, FileMode.Open, FileAccess.Read);
byte[] hash = ha.ComputeHash(fs);
fs.Close();
string h2 = utils.HexDump(hash);
return(h2.Replace(" ", "").Replace("\r\n", ""));
}
public byte[] Sign(byte[] securedInput, object key)
{
byte[] numArray;
RSA rSA = Ensure.Type <RSA>(key, "RsaUsingSha alg expects key to be of AsymmetricAlgorithm type.", new object[0]);
using (System.Security.Cryptography.HashAlgorithm hashAlgorithm = this.HashAlgorithm)
{
RSAPKCS1SignatureFormatter rSAPKCS1SignatureFormatter = new RSAPKCS1SignatureFormatter(rSA);
rSAPKCS1SignatureFormatter.SetHashAlgorithm(this.hashMethod);
numArray = rSAPKCS1SignatureFormatter.CreateSignature(hashAlgorithm.ComputeHash(securedInput));
}
return(numArray);
}
public string HashMD5(string strToHash, string provider)
{
try
{
System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
System.Security.Cryptography.HashAlgorithm alg = System.Security.Cryptography.HashAlgorithm.Create(provider);
return(ByteArrayToUrlString(alg.ComputeHash(encoding.GetBytes(strToHash))));
}
catch (Exception ex)
{
return(ex.Message);
}
}
/// <summary> 哈希密码加密(不可还原) </summary>
/// <param name="s">原始字符串</param>
/// <param name="saltKey">Salt加密字符串</param>
/// <param name="hashName">加密格式(MD5, SHA1, SHA256, SHA384, SHA512.)</param>
/// <returns>加密过的密码</returns>
static public string EncryptToHashString(string s, string saltKey, string hashName)
{
byte[] src = System.Text.Encoding.Unicode.GetBytes(s);
byte[] saltbuf = Convert.FromBase64String(saltKey);
byte[] dst = new byte[saltbuf.Length + src.Length];
byte[] inArray = null;
System.Buffer.BlockCopy(saltbuf, 0, dst, 0, saltbuf.Length);
System.Buffer.BlockCopy(src, 0, dst, saltbuf.Length, src.Length);
System.Security.Cryptography.HashAlgorithm algorithm = System.Security.Cryptography.HashAlgorithm.Create(hashName);
inArray = algorithm.ComputeHash(dst);
return(Convert.ToBase64String(inArray));
}
private HashMembershipCondition(SerializationInfo info, StreamingContext context)
{
this.m_value = (byte[])info.GetValue("HashValue", typeof(byte[]));
string hashName = (string)info.GetValue("HashAlgorithm", typeof(string));
if (hashName != null)
{
this.m_hashAlg = System.Security.Cryptography.HashAlgorithm.Create(hashName);
}
else
{
this.m_hashAlg = new SHA1Managed();
}
}
public HashMembershipCondition(System.Security.Cryptography.HashAlgorithm hashAlg, byte[] value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
if (hashAlg == null)
{
throw new ArgumentNullException("hashAlg");
}
this.m_value = new byte[value.Length];
Array.Copy(value, this.m_value, value.Length);
this.m_hashAlg = hashAlg;
}
public bool Verify(byte[] signature, byte[] securedInput, object key)
{
bool flag;
using (System.Security.Cryptography.HashAlgorithm hashAlgorithm = this.HashAlgorithm)
{
AsymmetricAlgorithm asymmetricAlgorithm = Ensure.Type <AsymmetricAlgorithm>(key, "RsaUsingSha alg expects key to be of AsymmetricAlgorithm type.", new object[0]);
byte[] numArray = hashAlgorithm.ComputeHash(securedInput);
RSAPKCS1SignatureDeformatter rSAPKCS1SignatureDeformatter = new RSAPKCS1SignatureDeformatter(asymmetricAlgorithm);
rSAPKCS1SignatureDeformatter.SetHashAlgorithm(this.hashMethod);
flag = rSAPKCS1SignatureDeformatter.VerifySignature(numArray, signature);
}
return(flag);
}
//获取Hash描述表
public bool GetHash(string mStrSource, ref string strHashData)
{
if (strHashData == null)
{
throw new ArgumentNullException(nameof(strHashData));
}
//从字符串中取得Hash描述
System.Security.Cryptography.HashAlgorithm md5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
var buffer = System.Text.Encoding.GetEncoding("GB2312").GetBytes(mStrSource);
var hashData = md5.ComputeHash(buffer);
strHashData = Convert.ToBase64String(hashData);
return(true);
}
private string _HashStandard(string file, System.Security.Cryptography.HashAlgorithm algorithm)
{
string ret;
using (var fs = new FileStream(file, FileMode.Open))
{
using (algorithm)
{
var hash = algorithm.ComputeHash(fs);
ret = _FormatBytes(hash);
}
}
return(ret);
}
/// <summary>
/// 获取Hash描述表
/// </summary>
/// <param name="objFile">待签名的文件</param>
/// <param name="HashData">Hash描述</param>
/// <returns></returns>
public bool GetHash(System.IO.FileStream objFile, ref byte[] HashData)
{
try
{
//从文件中取得Hash描述
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
HashData = MD5.ComputeHash(objFile);
objFile.Close();
return(true);
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 获取Hash描述表
/// </summary>
/// <param name="strSource">待签名的字符串</param>
/// <param name="HashData">Hash描述</param>
/// <returns></returns>
public bool GetHash(string strSource, ref byte[] HashData)
{
try
{
byte[] Buffer;
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
Buffer = System.Text.Encoding.GetEncoding("GB2312").GetBytes(strSource);
HashData = MD5.ComputeHash(Buffer);
return(true);
}
catch (Exception ex)
{
throw ex;
}
}
private string GenerateNonUdon(string input, System.Security.Cryptography.HashAlgorithm algorithm)
{
using (var hash = algorithm)
{
var bytes = hash.ComputeHash(System.Text.Encoding.UTF8.GetBytes(input));
string output = "";
foreach (byte x in bytes)
{
output += string.Format("{0:x2}", x);
}
return(output);
}
}
//获取Hash描述表
public static bool GetHash(string m_strSource, ref byte[] HashData)
{
try
{
//从字符串中取得Hash描述
byte[] Buffer;
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
Buffer = System.Text.Encoding.Default.GetBytes(m_strSource);
HashData = MD5.ComputeHash(Buffer);
return(true);
}
catch (Exception ex)
{
throw ex;
}
}
private static bool getHashData(string strSource, ref byte[] HashData)
{
try
{
byte[] Buffer;
System.Security.Cryptography.HashAlgorithm SHA1 = System.Security.Cryptography.HashAlgorithm.Create(SIGN_ALGORITHMS);
System.Security.Cryptography.SHA1 sha1 = System.Security.Cryptography.SHA1.Create();
Buffer = System.Text.Encoding.GetEncoding(CHAR_SET).GetBytes(strSource);
HashData = sha1.ComputeHash(Buffer);
return(true);
}
catch (System.Exception ex)
{
throw ex;
}
}
/// <summary>
/// 获取Hash描述表
/// </summary>
/// <param name="objFile">待签名的文件</param>
/// <param name="strHashData">Hash描述</param>
/// <returns></returns>
public static bool GetHash(System.IO.FileStream objFile, out string strHashData)
{
try
{
//从文件中取得Hash描述
byte[] HashData;
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
HashData = MD5.ComputeHash(objFile);
objFile.Close();
strHashData = Convert.ToBase64String(HashData);
return(true);
}
catch (Exception ex)
{
throw ex;
}
}
public void FromXml(SecurityElement e, PolicyLevel level)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
if (!e.Tag.Equals("IMembershipCondition"))
{
throw new ArgumentException(Environment.GetResourceString("Argument_MembershipConditionElement"));
}
lock (this.InternalSyncObject)
{
this.m_element = e;
this.m_value = null;
this.m_hashAlg = null;
}
}
/// <summary>
/// Encrypt original string to MD5 string.
/// </summary>
/// <param name="value">The original string.</param>
/// <returns>Returns encrypt string.</returns>
public static string Encrypt(string value)
{
string ret = string.Empty;
// byte array representation of that string
byte[] encodedPassword = new UTF8Encoding().GetBytes(value);
// need MD5 to calculate the hash
cypt.HashAlgorithm algo = (cypt.HashAlgorithm)cypt.CryptoConfig.CreateFromName("MD5");
byte[] hash = algo.ComputeHash(encodedPassword);
// string representation (similar to UNIX format)
ret = BitConverter.ToString(hash)
// without dashes
.Replace("-", string.Empty)
// make lowercase
.ToLower();
return(ret);
}
/// <summary>
/// 获取Hash描述表
/// </summary>
/// <param name="strSource">待签名的字符串</param>
/// <param name="strHashData">Hash描述</param>
/// <returns></returns>
public static bool GetHash(string strSource, out string strHashData)
{
try
{
//从字符串中取得Hash描述
byte[] Buffer;
byte[] HashData;
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
Buffer = System.Text.Encoding.GetEncoding("GB2312").GetBytes(strSource);
HashData = MD5.ComputeHash(Buffer);
strHashData = Convert.ToBase64String(HashData);
return(true);
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// Generate hashed string of the string to according to hash algorithm.
/// </summary>
/// <param name="source"></param>
/// <param name="hashAlgorithm"></param>
/// <returns></returns>
public static string GenerateHashString(this string source,
HashAlgorithm hashAlgorithm = HashAlgorithm.SHA256)
{
if (string.IsNullOrEmpty(source))
{
throw new ArgumentException(nameof(source));
}
var sourceData = Encoding.UTF8.GetBytes(source);
byte[] hashedData = null;
System.Security.Cryptography.HashAlgorithm hash = null;
try
{
switch (hashAlgorithm)
{
case HashAlgorithm.SHA1:
hash = SHA1.Create();
break;
case HashAlgorithm.SHA512:
{
hash = SHA512.Create();
break;
}
case HashAlgorithm.SHA256:
default:
{
hash = SHA256.Create();
break;
}
}
hashedData = hash.ComputeHash(sourceData);
}
finally
{
hash?.Dispose();
}
var result = BitConverter.ToString(hashedData).ToLower().Replace("-", "");
return(result);
}
static string Hash_Internal(string p_string, System.Security.Cryptography.HashAlgorithm p_hashAlgorithm)
{
if (p_hashAlgorithm != null && !string.IsNullOrEmpty(p_string))
{
var bytes = System.Text.Encoding.UTF8.GetBytes(p_string);
var hashedInputBytes = p_hashAlgorithm.ComputeHash(bytes);
// Convert to text
// StringBuilder Capacity is 128, because 512 bits / 8 bits in byte * 2 symbols for byte
var hashedInputStringBuilder = new System.Text.StringBuilder(128);
foreach (var b in hashedInputBytes)
{
hashedInputStringBuilder.Append(b.ToString("X2"));
}
var v_hash = hashedInputStringBuilder.ToString();
return(v_hash);
}
return("");
}
private void ParseHashAlgorithm()
{
lock (this.InternalSyncObject)
{
if (this.m_element != null)
{
string hashName = this.m_element.Attribute("HashAlgorithm");
if (hashName != null)
{
this.m_hashAlg = System.Security.Cryptography.HashAlgorithm.Create(hashName);
}
else
{
this.m_hashAlg = new SHA1Managed();
}
if ((this.m_value != null) && (this.m_hashAlg != null))
{
this.m_element = null;
}
}
}
}
/// <summary>
/// Calculates the hash of the filename using the specified HashAlgorithm and adds it to the MemoryStream
/// </summary>
/// <param name="memStream">MemoryStream containing hash bytes</param>
/// <param name="algo">HashAlgorithm to compute hash (MD5, SHA1, SHA256, etc)</param>
private void AddFilenameHash(Stream memStream, System.Security.Cryptography.HashAlgorithm algo)
{
var fileNameWithoutExtension = Path.GetFileNameWithoutExtension(FilePath);
if (fileNameWithoutExtension == null)
{
return;
}
var fileNameNoExt = Encoding.UTF8.GetBytes(fileNameWithoutExtension.ToLower());
if (fileNameNoExt.Length <= 0)
{
return;
}
var hashFileName = algo.ComputeHash(fileNameNoExt);
if (hashFileName.Length > 0)
{
memStream.Write(hashFileName, 0, hashFileName.Length);
}
}
/// <summary>
/// Calculate hash using SHA512
/// </summary>
/// <param name="includeFilename">If true, the filename is including when computing the hash</param>
/// <returns>A string representation of the computed hash</returns>
private string CalculateHash(bool includeFilename, System.Security.Cryptography.HashAlgorithm algo)
{
var hash = string.Empty;
using (var memStream = new MemoryStream())
{
if (includeFilename)
{
AddFilenameHash(memStream, algo);
}
try
{
using (var fileStream = GetFileStream())
{
if (fileStream == null)
{
return(hash);
}
var hashFile = algo.ComputeHash(fileStream);
memStream.Write(hashFile, 0, hashFile.Length);
}
}
catch (IOException ex)
{
Debug.WriteLine("The following error occurred trying to compute hash of file contents:" + ex.Message);
return(hash);
}
memStream.Seek(0, SeekOrigin.Begin);
return(CalculateHashString(algo, memStream));
}
}
public ValidationError ValidationHandler2(XmlDocument xmlDoc, string xmlFileName)
{
ValidationError validationError = new ValidationError(xmlFileName, null);
TimeStampToken token = XmlNodeHelper.GetTimeStampToken(xmlDoc);
byte[] timesStampDigestArray = token.TimeStampInfo.GetMessageImprintDigest();
string hashAlgorithmId = token.TimeStampInfo.HashAlgorithm.Algorithm.Id;
var signatureEle = xmlDoc.SelectXmlNode("//ds:Signature/ds:SignatureValue");
if (signatureEle == null)
{
return(validationError.AppendErrorMessage("Missing SignatureValue element."));
}
byte[] signatureValueByteArray = Convert.FromBase64String(signatureEle.InnerText);
var signatureMethodAlgorithm = xmlDoc.SelectXmlNode("//ds:SignedInfo/ds:SignatureMethod").AtrValue("Algorithm");
if (signatureMethodAlgorithm != "http://www.w3.org/2001/04/xmldsig-more#rsa-sha256")
{
return(validationError.AppendErrorMessage($"Unknown SignatureMethod Algorithm {signatureMethodAlgorithm}."));
}
System.Security.Cryptography.HashAlgorithm hashAlgo = System.Security.Cryptography.SHA256Managed.Create();
var conputedSignatureByteArray = hashAlgo.ComputeHash(signatureValueByteArray);
if (!StructuralComparisons.StructuralEqualityComparer.Equals(conputedSignatureByteArray, timesStampDigestArray))
{
return(validationError.AppendErrorMessage("Missing SignatureValue element."));
}
return(validationError);
}
/// <summary>
/// RSA加密解密及RSA签名和验证
/// </summary>
public class RSA
{
#region RSA 加密解密
#region RSA 的密钥产生
/// <summary>
/// RSA 的密钥产生 产生私钥 和公钥
/// </summary>
/// <param name="xmlKeys"></param>
/// <param name="xmlPublicKey"></param>
public Tuple<string,string> generateKey()
{
System.Security.Cryptography.RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
string xmlKeys = rsa.ToXmlString(true);
string xmlPublicKey = rsa.ToXmlString(false);
return Tuple.Create<string, string>(xmlKeys, xmlPublicKey);
}
#endregion
#region RSA的加密函数
//##############################################################################
//RSA 方式加密
//说明KEY必须是XML的行式,返回的是字符串
//在有一点需要说明！！该加密方式有 长度 限制的！！
//##############################################################################
//RSA的加密函数 string
public string encrypt(string xmlPublicKey, string m_strEncryptString)
{
byte[] PlainTextBArray;
byte[] CypherTextBArray;
string Result;
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
rsa.FromXmlString(xmlPublicKey);
PlainTextBArray = (new UnicodeEncoding()).GetBytes(m_strEncryptString);
CypherTextBArray = rsa.Encrypt(PlainTextBArray, false);
Result = Convert.ToBase64String(CypherTextBArray);
return Result;
}
//RSA的加密函数 byte[]
public string encrypt(string xmlPublicKey, byte[] EncryptString)
{
byte[] CypherTextBArray;
string Result;
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
rsa.FromXmlString(xmlPublicKey);
CypherTextBArray = rsa.Encrypt(EncryptString, false);
Result = Convert.ToBase64String(CypherTextBArray);
return Result;
}
#endregion
#region RSA的解密函数
//RSA的解密函数 string
public string decrypt(string xmlPrivateKey, string m_strDecryptString)
{
byte[] PlainTextBArray;
byte[] DypherTextBArray;
string Result;
System.Security.Cryptography.RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
rsa.FromXmlString(xmlPrivateKey);
PlainTextBArray = Convert.FromBase64String(m_strDecryptString);
DypherTextBArray = rsa.Decrypt(PlainTextBArray, false);
Result = (new UnicodeEncoding()).GetString(DypherTextBArray);
return Result;
}
//RSA的解密函数 byte
public string decrypt(string xmlPrivateKey, byte[] DecryptString)
{
byte[] DypherTextBArray;
string Result;
System.Security.Cryptography.RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
rsa.FromXmlString(xmlPrivateKey);
DypherTextBArray = rsa.Decrypt(DecryptString, false);
Result = (new UnicodeEncoding()).GetString(DypherTextBArray);
return Result;
}
#endregion
#endregion
#region RSA数字签名
#region 获取Hash描述表
//获取Hash描述表
public bool GetHash(string m_strSource, ref byte[] HashData)
{
//从字符串中取得Hash描述
byte[] Buffer;
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
Buffer = System.Text.Encoding.GetEncoding("GB2312").GetBytes(m_strSource);
HashData = MD5.ComputeHash(Buffer);
return true;
}
//获取Hash描述表
public bool GetHash(string m_strSource, ref string strHashData)
{
//从字符串中取得Hash描述
byte[] Buffer;
byte[] HashData;
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
Buffer = System.Text.Encoding.GetEncoding("GB2312").GetBytes(m_strSource);
HashData = MD5.ComputeHash(Buffer);
strHashData = Convert.ToBase64String(HashData);
return true;
}
//获取Hash描述表
public bool GetHash(System.IO.FileStream objFile, ref byte[] HashData)
{
//从文件中取得Hash描述
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
HashData = MD5.ComputeHash(objFile);
objFile.Close();
return true;
}
//获取Hash描述表
public bool GetHash(System.IO.FileStream objFile, ref string strHashData)
{
//从文件中取得Hash描述
byte[] HashData;
System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5");
HashData = MD5.ComputeHash(objFile);
objFile.Close();
strHashData = Convert.ToBase64String(HashData);
return true;
}
#endregion
#region RSA签名
//RSA签名
public bool SignatureFormatter(string p_strKeyPrivate, byte[] HashbyteSignature, ref byte[] EncryptedSignatureData)
{
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
RSA.FromXmlString(p_strKeyPrivate);
System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
//设置签名的算法为MD5
RSAFormatter.SetHashAlgorithm("MD5");
//执行签名
EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature);
return true;
}
//RSA签名
public bool SignatureFormatter(string p_strKeyPrivate, byte[] HashbyteSignature, ref string m_strEncryptedSignatureData)
{
byte[] EncryptedSignatureData;
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
RSA.FromXmlString(p_strKeyPrivate);
System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
//设置签名的算法为MD5
RSAFormatter.SetHashAlgorithm("MD5");
//执行签名
EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature);
m_strEncryptedSignatureData = Convert.ToBase64String(EncryptedSignatureData);
return true;
}
//RSA签名
public bool SignatureFormatter(string p_strKeyPrivate, string m_strHashbyteSignature, ref byte[] EncryptedSignatureData)
{
byte[] HashbyteSignature;
HashbyteSignature = Convert.FromBase64String(m_strHashbyteSignature);
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
RSA.FromXmlString(p_strKeyPrivate);
System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
//设置签名的算法为MD5
RSAFormatter.SetHashAlgorithm("MD5");
//执行签名
EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature);
return true;
}
//RSA签名
public bool SignatureFormatter(string p_strKeyPrivate, string m_strHashbyteSignature, ref string m_strEncryptedSignatureData)
{
byte[] HashbyteSignature;
byte[] EncryptedSignatureData;
HashbyteSignature = Convert.FromBase64String(m_strHashbyteSignature);
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
RSA.FromXmlString(p_strKeyPrivate);
System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA);
//设置签名的算法为MD5
RSAFormatter.SetHashAlgorithm("MD5");
//执行签名
EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature);
m_strEncryptedSignatureData = Convert.ToBase64String(EncryptedSignatureData);
return true;
}
#endregion
#region RSA 签名验证
public bool SignatureDeformatter(string p_strKeyPublic, byte[] HashbyteDeformatter, byte[] DeformatterData)
{
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
RSA.FromXmlString(p_strKeyPublic);
System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA);
//指定解密的时候HASH算法为MD5
RSADeformatter.SetHashAlgorithm("MD5");
if (RSADeformatter.VerifySignature(HashbyteDeformatter, DeformatterData))
{
return true;
}
else
{
return false;
}
}
public bool SignatureDeformatter(string p_strKeyPublic, string p_strHashbyteDeformatter, byte[] DeformatterData)
{
byte[] HashbyteDeformatter;
HashbyteDeformatter = Convert.FromBase64String(p_strHashbyteDeformatter);
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
RSA.FromXmlString(p_strKeyPublic);
System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA);
//指定解密的时候HASH算法为MD5
RSADeformatter.SetHashAlgorithm("MD5");
if (RSADeformatter.VerifySignature(HashbyteDeformatter, DeformatterData))
{
return true;
}
else
{
return false;
}
}
public bool SignatureDeformatter(string p_strKeyPublic, byte[] HashbyteDeformatter, string p_strDeformatterData)
{
byte[] DeformatterData;
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
RSA.FromXmlString(p_strKeyPublic);
System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA);
//指定解密的时候HASH算法为MD5
RSADeformatter.SetHashAlgorithm("MD5");
DeformatterData = Convert.FromBase64String(p_strDeformatterData);
if (RSADeformatter.VerifySignature(HashbyteDeformatter, DeformatterData))
{
return true;
}
else
{
return false;
}
}
public bool SignatureDeformatter(string p_strKeyPublic, string p_strHashbyteDeformatter, string p_strDeformatterData)
{
byte[] DeformatterData;
byte[] HashbyteDeformatter;
HashbyteDeformatter = Convert.FromBase64String(p_strHashbyteDeformatter);
System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider();
RSA.FromXmlString(p_strKeyPublic);
System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA);
//指定解密的时候HASH算法为MD5
RSADeformatter.SetHashAlgorithm("MD5");
DeformatterData = Convert.FromBase64String(p_strDeformatterData);
if (RSADeformatter.VerifySignature(HashbyteDeformatter, DeformatterData))
{
return true;
}
else
{
return false;
}
}
}
#endregion
#endregion
