我需要一种加密算法，我可以将数据加密成简单的纯文本。
目前我正在使用 AES 加密算法转换为加密字符串包含特殊字符。
如果我通过url中的查询字符串发送此字符串，我会遗漏一些字符，如＃＆＃34; +＆＃34;。
所以我需要一个安全且只包含字母表的加密逻辑。
这是我的加密逻辑：
public static String encrypt(String Data) throws Exception {
Key key = generateKey();
Cipher c = Cipher.getInstance(ALGO);
c.init(Cipher.ENCRYPT_MODE, key);
byte[] encVal = c.doFinal(Data.getBytes());
String encryptedValue = new BASE64Encoder().encode(encVal);
return encryptedValue;
}
@SuppressWarnings("restriction")
public static String decrypt(String encryptedData) throws Exception {
Key key = generateKey();
Cipher c = Cipher.getInstance(ALGO);
c.init(Cipher.DECRYPT_MODE, key);
byte[] decordedValue = new BASE64Decoder().decodeBuffer(encryptedData);
byte[] decValue = c.doFinal(decordedValue);
String decryptedValue = new String(decValue);
return decryptedValue;
}
我在这里获得一个加密的字符串＆＃34; TEj + TWBQExpz8 / p5SAjIhA == ＆＃34;
当我通过查询字符串发送
时本地主机：8080 / myproject的/家庭代码= TEJ + TWBQExpz8 / p5SAjIhA ==
我在控制器中获取字符串as-
＆＃34; TEj TWBQExpz8 / p5SAjIhA == ＆＃34;
＆＃34; +＆＃34;符号丢失，这就是为什么我在解密时遇到问题。
请建议任何新算法或任何解决方案以避免特殊字符。
谢谢。
答案 0 :(得分：4)
您可以使用URLEncoder
对加密部分进行编码URLEncoder.encode("TEj+TWBQExpz8/p5SAjIhA==", "UTF-8")
使其对网址有效。
http://docs.oracle.com/javase/8/docs/api/java/net/URLEncoder.html
答案 1 :(得分：2)
您应该尝试Apache Commons Base64 URL safe encoder，它将生成您需要的内容。
希望它有所帮助，
何塞路易斯答案 2 :(得分：1)
在通过URL发送加密值之前，您必须使用createOnEnter: function(e) {
var self = this;
this.input = this.$("#new-todo");
if (e.keyCode != 13) return;
this.todos.create({
content: this.input.val(),
order: this.todos.nextOrder(),
done: false,
user: Parse.User.current(),
ACL: new Parse.ACL("Administrator") //Parse.User.current())
});
对其进行编码。
在解密方面，您必须先使用Add-Type -TypeDefinition @"
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
[StructLayout(LayoutKind.Sequential)]
public struct PROCESS_INFORMATION
{
public IntPtr hProcess;
public IntPtr hThread;
public uint dwProcessId;
public uint dwThreadId;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct STARTUPINFO
{
public uint cb;
public string lpReserved;
public string lpDesktop;
public string lpTitle;
public uint dwX;
public uint dwY;
public uint dwXSize;
public uint dwYSize;
public uint dwXCountChars;
public uint dwYCountChars;
public uint dwFillAttribute;
public STARTF dwFlags;
public ShowWindow wShowWindow;
public short cbReserved2;
public IntPtr lpReserved2;
public IntPtr hStdInput;
public IntPtr hStdOutput;
public IntPtr hStdError;
}
[StructLayout(LayoutKind.Sequential)]
public struct SECURITY_ATTRIBUTES
{
public int length;
public IntPtr lpSecurityDescriptor;
public bool bInheritHandle;
}
[Flags]
public enum CreationFlags : int
{
NONE = 0,
DEBUG_PROCESS = 0x00000001,
DEBUG_ONLY_THIS_PROCESS = 0x00000002,
CREATE_SUSPENDED = 0x00000004,
DETACHED_PROCESS = 0x00000008,
CREATE_NEW_CONSOLE = 0x00000010,
CREATE_NEW_PROCESS_GROUP = 0x00000200,
CREATE_UNICODE_ENVIRONMENT = 0x00000400,
CREATE_SEPARATE_WOW_VDM = 0x00000800,
CREATE_SHARED_WOW_VDM = 0x00001000,
CREATE_PROTECTED_PROCESS = 0x00040000,
EXTENDED_STARTUPINFO_PRESENT = 0x00080000,
CREATE_BREAKAWAY_FROM_JOB = 0x01000000,
CREATE_PRESERVE_CODE_AUTHZ_LEVEL = 0x02000000,
CREATE_DEFAULT_ERROR_MODE = 0x04000000,
CREATE_NO_WINDOW = 0x08000000,
}
[Flags]
public enum STARTF : uint
{
STARTF_USESHOWWINDOW = 0x00000001,
STARTF_USESIZE = 0x00000002,
STARTF_USEPOSITION = 0x00000004,
STARTF_USECOUNTCHARS = 0x00000008,
STARTF_USEFILLATTRIBUTE = 0x00000010,
STARTF_RUNFULLSCREEN = 0x00000020, // ignored for non-x86 platforms
STARTF_FORCEONFEEDBACK = 0x00000040,
STARTF_FORCEOFFFEEDBACK = 0x00000080,
STARTF_USESTDHANDLES = 0x00000100,
}
public enum ShowWindow : short
{
SW_HIDE = 0,
SW_SHOWNORMAL = 1,
SW_NORMAL = 1,
SW_SHOWMINIMIZED = 2,
SW_SHOWMAXIMIZED = 3,
SW_MAXIMIZE = 3,
SW_SHOWNOACTIVATE = 4,
SW_SHOW = 5,
SW_MINIMIZE = 6,
SW_SHOWMINNOACTIVE = 7,
SW_SHOWNA = 8,
SW_RESTORE = 9,
SW_SHOWDEFAULT = 10,
SW_FORCEMINIMIZE = 11,
SW_MAX = 11
}
public static class wtsapi32
{
[DllImport("wtsapi32.dll", SetLastError = true)]
public static extern bool WTSQueryUserToken(Int32 sessionId, out IntPtr Token);
}
public static class advapi32
{
[DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Auto)]
public static extern bool CreateProcessAsUser(
IntPtr hToken,
string lpApplicationName,
string lpCommandLine,
ref SECURITY_ATTRIBUTES lpProcessAttributes,
ref SECURITY_ATTRIBUTES lpThreadAttributes,
bool bInheritHandles,
CreationFlags creationFlags,
IntPtr lpEnvironment,
string lpCurrentDirectory,
ref STARTUPINFO lpStartupInfo,
out PROCESS_INFORMATION lpProcessInformation);
}
"@
$sessionID = 2
$token = [IntPtr]::Zero
$ret = [wtsapi32]::WTSQueryUserToken($sessionID, [ref] $token)
$si = New-Object STARTUPINFO
$pi = New-Object PROCESS_INFORMATION
$si.cb = [System.Runtime.InteropServices.Marshal]::SizeOf($si)
$si.wShowWindow = [ShowWindow]::SW_SHOW
$pSec = New-Object SECURITY_ATTRIBUTES
$tSec = New-Object SECURITY_ATTRIBUTES
$pSec.Length = [System.Runtime.InteropServices.Marshal]::SizeOf($pSec)
$tSec.Length = [System.Runtime.InteropServices.Marshal]::SizeOf($tSec)
$dwCreationFlags = [CreationFlags]::NORMAL_PRIORITY_CLASS -bor [CreationFlags]::CREATE_NEW_CONSOLE
[advapi32]::CreateProcessAsUser($token, "c:\windows\notepad.exe", $null, [ref] $pSec, [ref] $tSec, $false, $dwCreationFlags, [IntPtr]::Zero, "c:", [ref] $si, [ref] $pi)
来解码收到的数据。
您可以在代码中执行以下操作：
URLEncoder答案 3 :(得分：0)
仅使用URLEncode无需更改代码。
String encodedStr = URLEncoder.encode(encrypt("XYZ"), "UTF-8");
并且不需要使用URLDecode来解码url，因为您可以使用normal
decrypt(encodedStr);
答案 4 :(得分：0)
在通过URL发送加密值之前，必须在C＃应用程序中使用此值对加密值进行编码。 解密方面，您必须首先使用UrlDecode来解码QueryString数据。
Server.UrlEncode("");
Server.UrlDecode("");
答案 5 :(得分：0)
我在基于Spring的应用程序中遇到了同样的问题，并通过Base64编码/解码过程解决了该问题。
编码：
String encryptedString = encrypt(stringData);
byte[] encoded = Base64.getEncoder().encode(encryptedString.getBytes(StandardCharsets.UTF_8));
String base64Encoded = new String(encoded);
解码：
byte[] decoded = Base64.getDecoder().decode(base64Encoded.getBytes(StandardCharsets.UTF_8));
String encryptedString = new String(decoded);
比起您可以在解密方法上成功解密“ encryptedString”值而言。
String decryptedString = decrypt(encryptedString);
希望对您有帮助。