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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Runtime.InteropServices;
using System.Security.Cryptography;
using System.Text;
using System.Web;
namespace Blog.Core.Common
{
/// <summary>
/// 建行支付助手(根据官方提供的dll反编译过来的)
/// </summary>
public class CCBPayUtil
{
// Token: 0x06000001 RID: 1 RVA: 0x00002050 File Offset: 0x00000250
public string makeCCBParam(string param, string pubkey)
{
string text = this.dicSort(param);
text += this.MD5KEY;
string str = new MessageDigest_MD5().Md5_32(text);
param = param + "&SIGN=" + str;
if (pubkey.Length >= 30)
{
pubkey = pubkey.Substring(pubkey.Length - 30);
}
if (pubkey.Length >= 8)
{
pubkey = pubkey.Substring(0, 8);
}
string text2 = new DES_ENCRY_DECRY().doEncrypt(param, pubkey);
text2 = text2.Replace("+", ",");
return HttpUtility.UrlEncode(text2, Encoding.GetEncoding("ISO-8859-1"));
}
// Token: 0x06000002 RID: 2 RVA: 0x00002104 File Offset: 0x00000304
public bool verifyNotifySign(string src, string sign, string pubKey)
{
return new RSASign().verifySigature(src, sign, pubKey);
}
// Token: 0x06000003 RID: 3 RVA: 0x00002124 File Offset: 0x00000324
private string dicSort(string param)
{
return this.GetSignContent(this.strToMap(param));
}
// Token: 0x06000004 RID: 4 RVA: 0x00002144 File Offset: 0x00000344
private IDictionary<string, string> strToMap(string param)
{
IDictionary<string, string> dictionary = new Dictionary<string, string>();
string[] array = param.Split(new char[]
{
'&'
});
for (int i = 0; i < array.Length; i++)
{
if (!"".Equals(array[i]))
{
string[] array2 = array[i].Split(new char[]
{
'='
});
if (array2.Length == 1)
{
dictionary.Add(array2[0], "");
}
else
{
dictionary.Add(array2[0], array2[1]);
}
}
}
return dictionary;
}
// Token: 0x06000005 RID: 5 RVA: 0x000021F0 File Offset: 0x000003F0
private string GetSignContent(IDictionary<string, string> parameters)
{
IDictionary<string, string> dictionary = new SortedDictionary<string, string>(parameters);
IEnumerator<KeyValuePair<string, string>> enumerator = dictionary.GetEnumerator();
StringBuilder stringBuilder = new StringBuilder("");
while (enumerator.MoveNext())
{
KeyValuePair<string, string> keyValuePair = enumerator.Current;
string key = keyValuePair.Key;
keyValuePair = enumerator.Current;
string value = keyValuePair.Value;
if (!string.IsNullOrEmpty(key) && !string.IsNullOrEmpty(value))
{
stringBuilder.Append(key).Append("=").Append(value).Append("&");
}
}
return stringBuilder.ToString().Substring(0, stringBuilder.Length - 1);
}
// Token: 0x04000001 RID: 1
//private string VERSION = "1.0.0";
// Token: 0x04000002 RID: 2
private string MD5KEY = "20120315201809041004";
}
internal class RSASign
{
// Token: 0x06000007 RID: 7 RVA: 0x000022C4 File Offset: 0x000004C4
protected internal bool verifySigature(string signContent, string sign, string pubKey)
{
byte[] inArray = this.hexStrToBytes(pubKey);
pubKey = Convert.ToBase64String(inArray);
string text = "-----BEGIN PUBLIC KEY-----\r\n";
text += pubKey;
text += "-----END PUBLIC KEY-----\r\n\r\n";
byte[] sign2 = this.hexStrToBytes(sign);
byte[] bytes = Encoding.GetEncoding(RSASign.DEFAULT_CHARSET).GetBytes(signContent);
return this.RSACheckContent(bytes, sign2, text, "MD5");
}
// Token: 0x06000008 RID: 8 RVA: 0x00002330 File Offset: 0x00000530
private bool RSACheckContent(byte[] signContent, byte[] sign, string publicKeyPem, string signType)
{
bool result;
try
{
RSACryptoServiceProvider rsacryptoServiceProvider = new RSACryptoServiceProvider();
rsacryptoServiceProvider.PersistKeyInCsp = false;
RSACryptoServiceProviderExtension.LoadPublicKeyPEM(rsacryptoServiceProvider, publicKeyPem);
bool flag = rsacryptoServiceProvider.VerifyData(signContent, signType, sign);
result = flag;
}
catch
{
result = false;
}
return result;
}
// Token: 0x06000009 RID: 9 RVA: 0x0000237C File Offset: 0x0000057C
private byte[] hexStrToBytes(string s)
{
s = s.Replace(" ", "");
if (s.Length % 2 != 0)
{
s += " ";
}
byte[] array = new byte[s.Length / 2];
for (int i = 0; i < array.Length; i++)
{
array[i] = Convert.ToByte(s.Substring(i * 2, 2), 16);
}
return array;
}
// Token: 0x04000003 RID: 3
private static string DEFAULT_CHARSET = "GBK";
}
public class DES_ENCRY_DECRY
{
protected internal string doEncrypt(string param, string pubkey)
{
this.tdesKey = ((pubkey.Length > 8) ? pubkey.Substring(0, 8) : pubkey);
byte[] bytes = this.DESEncrypt(this.UTF_16BE, param, this.ISO_8859_1, this.tdesKey);
return this.Base64Encode(bytes);
}
// Token: 0x0600001A RID: 26 RVA: 0x00002684 File Offset: 0x00000884
protected internal string doDecrypt(string param, string pubkey)
{
this.tdesKey = ((pubkey.Length > 8) ? pubkey.Substring(0, 8) : pubkey);
return this.DESDecrypt(this.UTF_16BE, param, this.ISO_8859_1, this.tdesKey);
}
// Token: 0x0600001B RID: 27 RVA: 0x000026CC File Offset: 0x000008CC
private byte[] DESEncrypt(string dataCharset, string data, string keyCharset, string key)
{
byte[] result;
try
{
byte[] bytes = Encoding.GetEncoding(keyCharset).GetBytes(key);
byte[] rgbIV = bytes;
byte[] bytes2 = Encoding.GetEncoding(dataCharset).GetBytes(data);
var descryptoServiceProvider = DES.Create();
descryptoServiceProvider.Mode = CipherMode.ECB;
descryptoServiceProvider.Padding = PaddingMode.PKCS7;
MemoryStream memoryStream = new MemoryStream();
CryptoStream cryptoStream = new CryptoStream(memoryStream, descryptoServiceProvider.CreateEncryptor(bytes, rgbIV), CryptoStreamMode.Write);
cryptoStream.Write(bytes2, 0, bytes2.Length);
cryptoStream.FlushFinalBlock();
result = memoryStream.ToArray();
}
catch
{
result = null;
}
return result;
}
// Token: 0x0600001C RID: 28 RVA: 0x00002764 File Offset: 0x00000964
private string DESDecrypt(string dataCharset, string data, string keyCoding, string key)
{
string result;
try
{
byte[] bytes = Encoding.GetEncoding(keyCoding).GetBytes(key);
byte[] rgbIV = bytes;
byte[] array = this.Base64Decode(data);
var descryptoServiceProvider = DES.Create();
descryptoServiceProvider.Mode = CipherMode.ECB;
descryptoServiceProvider.Padding = PaddingMode.PKCS7;
MemoryStream memoryStream = new MemoryStream();
CryptoStream cryptoStream = new CryptoStream(memoryStream, descryptoServiceProvider.CreateDecryptor(bytes, rgbIV), CryptoStreamMode.Write);
cryptoStream.Write(array, 0, array.Length);
cryptoStream.FlushFinalBlock();
result = Encoding.GetEncoding(dataCharset).GetString(memoryStream.ToArray());
}
catch
{
result = null;
}
return result;
}
// Token: 0x0600001D RID: 29 RVA: 0x00002800 File Offset: 0x00000A00
private string Base64Encode(byte[] bytes)
{
string result = string.Empty;
try
{
result = Convert.ToBase64String(bytes);
}
catch
{
}
return result;
}
// Token: 0x0600001E RID: 30 RVA: 0x0000283C File Offset: 0x00000A3C
private byte[] Base64Decode(string source)
{
byte[] result = null;
try
{
result = Convert.FromBase64String(source);
}
catch
{
}
return result;
}
// Token: 0x04000031 RID: 49
private string tdesKey = "12345678";
// Token: 0x04000032 RID: 50
private string UTF_16BE = "utf-16BE";
// Token: 0x04000033 RID: 51
private string ISO_8859_1 = "ISO-8859-1";
}
internal class MessageDigest_MD5
{
// Token: 0x06000020 RID: 32 RVA: 0x000028A0 File Offset: 0x00000AA0
protected internal string Md5_32(string src)
{
var md = MD5.Create();
byte[] bytes = Encoding.UTF8.GetBytes(src);
byte[] array = md.ComputeHash(bytes);
string text = "";
for (int i = 0; i < array.Length; i++)
{
text += array[i].ToString("x2");
}
return text;
}
}
internal class RSACryptoServiceProviderExtension
{
// Token: 0x0600000C RID: 12 RVA: 0x00002408 File Offset: 0x00000608
private static void LoadPublicKeyDER(RSACryptoServiceProvider provider, byte[] DERData)
{
byte[] rsafromDER = RSACryptoServiceProviderExtension.GetRSAFromDER(DERData);
byte[] publicKeyBlobFromRSA = RSACryptoServiceProviderExtension.GetPublicKeyBlobFromRSA(rsafromDER);
provider.ImportCspBlob(publicKeyBlobFromRSA);
}
// Token: 0x0600000D RID: 13 RVA: 0x0000242C File Offset: 0x0000062C
internal static void LoadPublicKeyPEM(RSACryptoServiceProvider provider, string sPEM)
{
byte[] derfromPEM = RSACryptoServiceProviderExtension.GetDERFromPEM(sPEM);
RSACryptoServiceProviderExtension.LoadPublicKeyDER(provider, derfromPEM);
}
// Token: 0x0600000E RID: 14 RVA: 0x0000244C File Offset: 0x0000064C
private static byte[] GetPublicKeyBlobFromRSA(byte[] RSAData)
{
byte[] array = null;
uint num = 0U;
if (!RSACryptoServiceProviderExtension.CryptDecodeObject((RSACryptoServiceProviderExtension.CRYPT_ENCODING_FLAGS)65537U, new IntPtr(19), RSAData, (uint)RSAData.Length, RSACryptoServiceProviderExtension.CRYPT_DECODE_FLAGS.NONE, array, ref num))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
array = new byte[num];
if (!RSACryptoServiceProviderExtension.CryptDecodeObject((RSACryptoServiceProviderExtension.CRYPT_ENCODING_FLAGS)65537U, new IntPtr(19), RSAData, (uint)RSAData.Length, RSACryptoServiceProviderExtension.CRYPT_DECODE_FLAGS.NONE, array, ref num))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
return array;
}
// Token: 0x0600000F RID: 15 RVA: 0x000024C4 File Offset: 0x000006C4
internal static byte[] GetRSAFromDER(byte[] DERData)
{
byte[] array = null;
byte[] array2 = null;
uint num = 0U;
IntPtr zero = IntPtr.Zero;
if (!RSACryptoServiceProviderExtension.CryptDecodeObject((RSACryptoServiceProviderExtension.CRYPT_ENCODING_FLAGS)65537U, new IntPtr(8), DERData, (uint)DERData.Length, RSACryptoServiceProviderExtension.CRYPT_DECODE_FLAGS.NONE, array, ref num))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
array = new byte[num];
if (RSACryptoServiceProviderExtension.CryptDecodeObject((RSACryptoServiceProviderExtension.CRYPT_ENCODING_FLAGS)65537U, new IntPtr(8), DERData, (uint)DERData.Length, RSACryptoServiceProviderExtension.CRYPT_DECODE_FLAGS.NONE, array, ref num))
{
GCHandle gchandle = GCHandle.Alloc(array, GCHandleType.Pinned);
try
{
RSACryptoServiceProviderExtension.CERT_PUBLIC_KEY_INFO cert_PUBLIC_KEY_INFO = (RSACryptoServiceProviderExtension.CERT_PUBLIC_KEY_INFO)Marshal.PtrToStructure(gchandle.AddrOfPinnedObject(), typeof(RSACryptoServiceProviderExtension.CERT_PUBLIC_KEY_INFO));
array2 = new byte[cert_PUBLIC_KEY_INFO.PublicKey.cbData];
Marshal.Copy(cert_PUBLIC_KEY_INFO.PublicKey.pbData, array2, 0, array2.Length);
}
finally
{
gchandle.Free();
}
return array2;
}
throw new Win32Exception(Marshal.GetLastWin32Error());
}
// Token: 0x06000010 RID: 16 RVA: 0x000025C0 File Offset: 0x000007C0
internal static byte[] GetDERFromPEM(string sPEM)
{
uint num = 0U;
uint num2;
uint num3;
if (!RSACryptoServiceProviderExtension.CryptStringToBinary(sPEM, (uint)sPEM.Length, RSACryptoServiceProviderExtension.CRYPT_STRING_FLAGS.CRYPT_STRING_BASE64HEADER, null, ref num, out num2, out num3))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
byte[] array = new byte[num];
if (!RSACryptoServiceProviderExtension.CryptStringToBinary(sPEM, (uint)sPEM.Length, RSACryptoServiceProviderExtension.CRYPT_STRING_FLAGS.CRYPT_STRING_BASE64HEADER, array, ref num, out num2, out num3))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
return array;
}
// Token: 0x06000011 RID: 17
[DllImport("advapi32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool CryptDestroyKey(IntPtr hKey);
// Token: 0x06000012 RID: 18
[DllImport("advapi32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool CryptImportKey(IntPtr hProv, byte[] pbKeyData, uint dwDataLen, IntPtr hPubKey, uint dwFlags, ref IntPtr hKey);
// Token: 0x06000013 RID: 19
[DllImport("advapi32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool CryptReleaseContext(IntPtr hProv, int dwFlags);
// Token: 0x06000014 RID: 20
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool CryptAcquireContext(ref IntPtr hProv, string pszContainer, string pszProvider, RSACryptoServiceProviderExtension.CRYPT_PROVIDER_TYPE dwProvType, RSACryptoServiceProviderExtension.CRYPT_ACQUIRE_CONTEXT_FLAGS dwFlags);
// Token: 0x06000015 RID: 21
[DllImport("crypt32.dll", CharSet = CharSet.Auto, SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool CryptStringToBinary(string sPEM, uint sPEMLength, RSACryptoServiceProviderExtension.CRYPT_STRING_FLAGS dwFlags, [Out] byte[] pbBinary, ref uint pcbBinary, out uint pdwSkip, out uint pdwFlags);
// Token: 0x06000016 RID: 22
[DllImport("crypt32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool CryptDecodeObjectEx(RSACryptoServiceProviderExtension.CRYPT_ENCODING_FLAGS dwCertEncodingType, IntPtr lpszStructType, byte[] pbEncoded, uint cbEncoded, RSACryptoServiceProviderExtension.CRYPT_DECODE_FLAGS dwFlags, IntPtr pDecodePara, ref byte[] pvStructInfo, ref uint pcbStructInfo);
// Token: 0x06000017 RID: 23
[DllImport("crypt32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool CryptDecodeObject(RSACryptoServiceProviderExtension.CRYPT_ENCODING_FLAGS dwCertEncodingType, IntPtr lpszStructType, byte[] pbEncoded, uint cbEncoded, RSACryptoServiceProviderExtension.CRYPT_DECODE_FLAGS flags, [In][Out] byte[] pvStructInfo, ref uint cbStructInfo);
// Token: 0x02000005 RID: 5
internal enum CRYPT_ACQUIRE_CONTEXT_FLAGS : uint
{
// Token: 0x04000005 RID: 5
CRYPT_NEWKEYSET = 8U,
// Token: 0x04000006 RID: 6
CRYPT_DELETEKEYSET = 16U,
// Token: 0x04000007 RID: 7
CRYPT_MACHINE_KEYSET = 32U,
// Token: 0x04000008 RID: 8
CRYPT_SILENT = 64U,
// Token: 0x04000009 RID: 9
CRYPT_DEFAULT_CONTAINER_OPTIONAL = 128U,
// Token: 0x0400000A RID: 10
CRYPT_VERIFYCONTEXT = 4026531840U
}
// Token: 0x02000006 RID: 6
internal enum CRYPT_PROVIDER_TYPE : uint
{
// Token: 0x0400000C RID: 12
PROV_RSA_FULL = 1U
}
// Token: 0x02000007 RID: 7
internal enum CRYPT_DECODE_FLAGS : uint
{
// Token: 0x0400000E RID: 14
NONE,
// Token: 0x0400000F RID: 15
CRYPT_DECODE_ALLOC_FLAG = 32768U
}
// Token: 0x02000008 RID: 8
internal enum CRYPT_ENCODING_FLAGS : uint
{
// Token: 0x04000011 RID: 17
PKCS_7_ASN_ENCODING = 65536U,
// Token: 0x04000012 RID: 18
X509_ASN_ENCODING = 1U
}
// Token: 0x02000009 RID: 9
internal enum CRYPT_OUTPUT_TYPES
{
// Token: 0x04000014 RID: 20
X509_PUBLIC_KEY_INFO = 8,
// Token: 0x04000015 RID: 21
RSA_CSP_PUBLICKEYBLOB = 19,
// Token: 0x04000016 RID: 22
PKCS_RSA_PRIVATE_KEY = 43,
// Token: 0x04000017 RID: 23
PKCS_PRIVATE_KEY_INFO
}
// Token: 0x0200000A RID: 10
internal enum CRYPT_STRING_FLAGS : uint
{
// Token: 0x04000019 RID: 25
CRYPT_STRING_BASE64HEADER,
// Token: 0x0400001A RID: 26
CRYPT_STRING_BASE64,
// Token: 0x0400001B RID: 27
CRYPT_STRING_BINARY,
// Token: 0x0400001C RID: 28
CRYPT_STRING_BASE64REQUESTHEADER,
// Token: 0x0400001D RID: 29
CRYPT_STRING_HEX,
// Token: 0x0400001E RID: 30
CRYPT_STRING_HEXASCII,
// Token: 0x0400001F RID: 31
CRYPT_STRING_BASE64_ANY,
// Token: 0x04000020 RID: 32
CRYPT_STRING_ANY,
// Token: 0x04000021 RID: 33
CRYPT_STRING_HEX_ANY,
// Token: 0x04000022 RID: 34
CRYPT_STRING_BASE64X509CRLHEADER,
// Token: 0x04000023 RID: 35
CRYPT_STRING_HEXADDR,
// Token: 0x04000024 RID: 36
CRYPT_STRING_HEXASCIIADDR,
// Token: 0x04000025 RID: 37
CRYPT_STRING_HEXRAW,
// Token: 0x04000026 RID: 38
CRYPT_STRING_NOCRLF = 1073741824U,
// Token: 0x04000027 RID: 39
CRYPT_STRING_NOCR = 2147483648U
}
// Token: 0x0200000B RID: 11
internal class CRYPT_OBJID_BLOB
{
// Token: 0x04000028 RID: 40
internal uint cbData = default;
// Token: 0x04000029 RID: 41
internal IntPtr pbData = default;
}
// Token: 0x0200000C RID: 12
internal class CRYPT_ALGORITHM_IDENTIFIER
{
// Token: 0x0400002A RID: 42
internal IntPtr pszObjId = default;
// Token: 0x0400002B RID: 43
internal RSACryptoServiceProviderExtension.CRYPT_OBJID_BLOB Parameters = default;
}
// Token: 0x0200000D RID: 13
private class CRYPT_BIT_BLOB
{
// Token: 0x0400002C RID: 44
internal uint cbData = default;
// Token: 0x0400002D RID: 45
internal IntPtr pbData = default;
// Token: 0x0400002E RID: 46
internal uint cUnusedBits = default;
}
// Token: 0x0200000E RID: 14
private class CERT_PUBLIC_KEY_INFO
{
// Token: 0x0400002F RID: 47
internal RSACryptoServiceProviderExtension.CRYPT_ALGORITHM_IDENTIFIER Algorithm = default;
// Token: 0x04000030 RID: 48
internal RSACryptoServiceProviderExtension.CRYPT_BIT_BLOB PublicKey = default;
}
}
}