AES加密后转ASC

将AES加密后得到的二进制数据转换成ASCII码表示，可以使用Base64编码方式实现。具体步骤如下：

1. 使用AES加密算法对原始数据进行加密，得到二进制数据。
2. 将二进制数据转换成Base64编码，得到可打印的ASCII字符序列。
3. 将ASCII字符序列发送或保存到需要的地方。

在JavaScript中，可以使用CryptoJS库中的AES和Base64模块来实现这个过程。示例代码如下：

const plaintext = 'hello world'; // 原始数据
const key = 'my secret key'; // 密钥

// 使用AES加密算法加密数据
const ciphertext = CryptoJS.AES.encrypt(plaintext, key).ciphertext;

// 将二进制数据转换成Base64编码
const base64text = ciphertext.toString(CryptoJS.enc.Base64);

console.log(base64text); // 输出Base64编码后的ASCII字符序列

这样就可以将AES加密后的数据转换成ASCII字符序列，方便在网络传输中使用。

相关问题

易语言aes加密

易语言中可以通过调用 Windows API 来实现 AES 加密。以下是一个示例代码：

'定义 API 函数
Declare Function CryptAcquireContext Lib "advapi32.dll" Alias _
    "CryptAcquireContextA" (ByRef phProv As Long, ByVal pszContainer As String, _
    ByVal pszProvider As String, ByVal dwProvType As Long, ByVal dwFlags As Long) As Long

Declare Function CryptCreateHash Lib "advapi32.dll" (ByRef hProv As Long, _
    ByVal Algid As Long, ByVal hKey As Long, ByVal dwFlags As Long, ByRef phHash As Long) As Long

Declare Function CryptHashData Lib "advapi32.dll" (ByVal hHash As Long, _
    ByVal pbData As Long, ByVal dwDataLen As Long, ByVal dwFlags As Long) As Long

Declare Function CryptDeriveKey Lib "advapi32.dll" (ByVal hProv As Long, _
    ByVal Algid As Long, ByVal hBaseData As Long, ByVal dwFlags As Long, ByRef phKey As Long) As Long

Declare Function CryptEncrypt Lib "advapi32.dll" (ByVal hKey As Long, _
    ByVal hHash As Long, ByVal Final As Long, ByVal dwFlags As Long, ByVal pbData As Long, _
    ByRef pdwDataLen As Long, ByVal dwBufLen As Long) As Long

'定义常量
Const PROV_RSA_AES = 24
Const CRYPT_MODE_CBC = 1
Const CALG_AES_256 = 26128

'定义变量
Dim hProv As Long
Dim hHash As Long
Dim hKey As Long
Dim strText As String
Dim strKey As String
Dim bText() As Byte
Dim bKey() As Byte
Dim bIV() As Byte
Dim i As Long

'初始化变量
strText = "Hello, world!"
strKey = "my secret key"
ReDim bText(Len(strText) - 1) As Byte
ReDim bKey(Len(strKey) - 1) As Byte
ReDim bIV(15) As Byte '128位 IV

'转换字符串为字节数组
For i = 0 To UBound(bText)
    bText(i) = Asc(Mid(strText, i + 1, 1))
Next

For i = 0 To UBound(bKey)
    bKey(i) = Asc(Mid(strKey, i + 1, 1))
Next

'获取加密提供程序的句柄
If CryptAcquireContext(hProv, vbNullString, vbNullString, PROV_RSA_AES, 0) = 0 Then
    MsgBox "无法获取加密提供程序的句柄"
    Exit Sub
End If

'创建哈希对象
If CryptCreateHash(hProv, CALG_AES_256, 0, 0, hHash) = 0 Then
    MsgBox "无法创建哈希对象"
    Exit Sub
End If

'将密钥数据导入哈希对象
If CryptHashData(hHash, VarPtr(bKey(0)), UBound(bKey) + 1, 0) = 0 Then
    MsgBox "无法导入密钥数据"
    Exit Sub
End If

'导出哈希值并创建密钥对象
If CryptDeriveKey(hProv, CALG_AES_256, hHash, 0, hKey) = 0 Then
    MsgBox "无法创建密钥对象"
    Exit Sub
End If

'加密数据
If CryptEncrypt(hKey, 0, True, CRYPT_MODE_CBC, VarPtr(bText(0)), UBound(bText) + 1, UBound(bText) + 1) = 0 Then
    MsgBox "加密失败"
    Exit Sub
End If

'输出加密结果
For i = 0 To UBound(bText)
    Debug.Print Hex(bText(i));
Next

在上面的示例代码中，我们使用了 AES-256 加密算法和 CBC 模式。加密过程包括以下步骤：

1. 获取加密提供程序的句柄
2. 创建哈希对象，并将密钥数据导入哈希对象
3. 导出哈希值并创建密钥对象
4. 加密数据

需要注意的是，AES 加密需要一个 128 位的初始化向量（IV），我们在代码中将其初始化为 16 个 0。在实际应用中，需要根据具体需求生成随机的 IV。

帮我写一份AES加密算法，不依赖系统库

对称加密算法 AES （Advanced Encryption Standard）是一种常用的加密算法，可以通过纯算法实现。以下是一个使用 VBScript 实现 AES 加密算法的示例：

' AES 加密函数
Function AESEncrypt(plainText, key)
    Dim expandedKey(), roundKeys()
    Dim state(3, 3), roundKey(3, 3)
    Dim i, j, round
    
    ' 扩展密钥
    expandedKey = KeyExpansion(key)
    
    ' 初始化状态矩阵
    For i = 0 To 3
        For j = 0 To 3
            state(i, j) = Asc(Mid(plainText, i * 4 + j + 1, 1))
        Next
    Next
    
    ' 轮密钥加
    AddRoundKey state, expandedKey, 0
    
    ' 执行 9 轮的 SubBytes、ShiftRows、MixColumns 和轮密钥加操作
    For round = 1 To 9
        SubBytes state
        ShiftRows state
        MixColumns state
        AddRoundKey state, expandedKey, round
    Next
    
    ' 执行最后一轮的 SubBytes、ShiftRows 和轮密钥加操作
    SubBytes state
    ShiftRows state
    AddRoundKey state, expandedKey, 10
    
    ' 将状态矩阵转换为字符串形式的密文
    AESEncrypt = ""
    For i = 0 To 3
        For j = 0 To 3
            AESEncrypt = AESEncrypt & Chr(state(j, i))
        Next
    Next
End Function

' 子字节替换函数
Sub SubBytes(state)
    Dim i, j
    
    For i = 0 To 3
        For j = 0 To 3
            state(j, i) = SBox(state(j, i))
        Next
    Next
End Sub

' 行移位函数
Sub ShiftRows(state)
    Dim temp(3)
    Dim i, j, k
    
    For i = 1 To 3
        For j = 0 To 3
            temp(j) = state(j, i)
        Next
        
        For j = 0 To 3
            state(j, i) = temp((j + i) Mod 4)
        Next
    Next
End Sub

' 列混淆函数
Sub MixColumns(state)
    Dim temp(3)
    Dim i, j
    
    For j = 0 To 3
        temp(0) = Mult(2, state(j, 0)) Xor Mult(3, state(j, 1)) Xor state(j, 2) Xor state(j, 3)
        temp(1) = state(j, 0) Xor Mult(2, state(j, 1)) Xor Mult(3, state(j, 2)) Xor state(j, 3)
        temp(2) = state(j, 0) Xor state(j, 1) Xor Mult(2, state(j, 2)) Xor Mult(3, state(j, 3))
        temp(3) = Mult(3, state(j, 0)) Xor state(j, 1) Xor state(j, 2) Xor Mult(2, state(j, 3))
        
        For i = 0 To 3
            state(j, i) = temp(i)
        Next
    Next
End Sub

' 轮密钥加函数
Sub AddRoundKey(state, expandedKey, round)
    Dim i, j
    
    For j = 0 To 3
        For i = 0 To 3
            state(i, j) = state(i, j) Xor expandedKey(round * 4 + i, j)
        Next
    Next
End Sub

' 密钥扩展函数
Function KeyExpansion(key)
    Dim expandedKey(44, 3)
    Dim temp(3), temp2(3)
    Dim i, j
    
    For i = 0 To 3
        For j = 0 To 3
            expandedKey(i, j) = Asc(Mid(key, i * 4 + j + 1, 1))
        Next
    Next
    
    For i = 4 To 43
        For j = 0 To 3
            temp(j) = expandedKey(i - 1, j)
        Next
        
        If i Mod 4 = 0 Then
            temp2(0) = SBox(temp(1)) Xor Rcon(i \ 4) Xor temp(0)
            temp2(1) = SBox(temp(2)) Xor 0 Xor temp(1)
            temp2(2) = SBox(temp(3)) Xor 0 Xor temp(2)
            temp2(3) = SBox(temp(0)) Xor 0 Xor temp(3)
        Else
            For j = 0 To 3
                temp2(j) = temp(j)
            Next
        End If
        
        For j = 0 To 3
            expandedKey(i, j) = expandedKey(i - 4, j) Xor temp2(j)
        Next
    Next
    
    KeyExpansion = expandedKey
End Function

' S 盒查找函数
Function SBox(byte)
    Dim row, col
    
    row = byte \ 16
    col = byte Mod 16
    
    SBox = SBoxTable(row, col)
End Function

' S 盒表
Const SBoxTable = Array( _
    &h63, &h7C, &h77, &h7B, &hF2, &h6B, &h6F, &hC5, &h30, &h01, &h67, &h2B, &hFE, &hD7, &hAB, &h76, _
    &hCA, &h82, &hC9, &h7D, &hFA, &h59, &h47, &hF0, &hAD, &hD4, &hA2, &hAF, &h9C, &hA4, &h72, &hC0, _
    &hB7, &hFD, &h93, &h26, &h36, &h3F, &hF7, &hCC, &h34, &hA5, &hE5, &hF1, &h71, &hD8, &h31, &h15, _
    &h04, &hC7, &h23, &hC3, &h18, &h96, &h05, &h9A, &h07, &h12, &h80, &hE2, &hEB, &h27, &hB2, &h75, _
    &h09, &h83, &h2C, &h1A, &h1B, &h6E, &h5A, &hA0, &h52, &h3B, &hD6, &hB3, &h29, &hE3, &h2F, &h84, _
    &h53, &hD1, &h00, &hED, &h20, &hFC, &hB1, &h5B, &h6A, &hCB, &hBE, &h39, &h4A, &h4C, &h58, &hCF, _
    &hD0, &hEF, &hAA, &hFB, &h43, &h4D, &h33, &h85, &h45, &hF9, &h02, &h7F, &h50, &h3C, &h9F, &hA8, _
    &h51, &hA3, &h40, &h8F, &h92, &h9D, &h38, &hF5, &hBC, &hB6, &hDA, &h21, &h10, &hFF, &hF3, &hD2, _
    &hCD, &h0C, &h13, &hEC, &h5F, &h97, &h44, &h17, &hC4, &hA7, &h7E, &h3D, &h64, &h5D, &h19, &h73, _
    &h60, &h81, &h4F, &hDC, &h22, &h2A, &h90, &h88, &h46, &hEE, &hB8, &h14, &hDE, &h5E, &h0B, &hDB, _
    &hE0, &h32, &h3A, &h0A, &h49, &h06, &h24, &h5C, &hC2, &hD3, &hAC, &h62, &h91, &h95, &hE4, &h79, _
    &hE7, &hC8, &h37, &h6D, &h8D, &hD5, &h4E, &hA9, &h6C, &h56, &hF4, &hEA, &h65, &h7A, &hAE, &h08, _
    &hBA, &h78, &h25, &h2E, &h1C, &hA6, &hB4, &hC6, &he8, &he3, &he1, &hef, &heb, &hed, &he6, &he0, _
    &hec, &hea, &hee, &heb, &he4, &he1, &he7, &he4 _
)

' 轮常数表
Const Rcon = Array(&h01&, &h02&, &h04&, &h08&, _
                  &h10&, &h20&, &h40&, &h80&, _
                  &h1B&, &h36&)
                  
' 有限域上的乘法运算
Function Mult(a, b)
    Dim result
    
    If a = 1 Then
        result = b
    ElseIf a = 2 Then
        result = MultBy2(b)
    ElseIf a = 3 Then
        result = MultBy3(b)
    End If
    
    Mult = result
End Function

' 有限域上乘以 2
Function MultBy2(b)
    Dim result
    
    If b < 128 Then
        result = b * 2
    Else
        result = (b * 2) Xor &h1B
    End If
    
    MultBy2 = result
End Function

' 有限域上乘以 3
Function MultBy3(b)
    Dim result
    
    result = MultBy2(b) Xor b
    
    MultBy3 = result
End Function

' 示例用法
Dim plainText, key, encryptedText

plainText = "Hello World!"
key = "MySecretKey"

encryptedText = AESEncrypt(plainText, key)
WScript.Echo "加密后的文本: " & encryptedText

请注意，这只是一个简化的 AES 加密算法实现示例，用于演示 VBScript 中的纯算法加密。在实际应用中，需要更多的安全性和可靠性考虑，建议使用专门的加密库或算法。