快马VPN加解密算法提取节点

.method public static e(Ljava/lang/String;)Ljava/lang/String;
    .locals 3
 
    .line 1
    invoke-virtual {p0}, Ljava/lang/String;->getBytes()[B
 
    move-result-object p0
 
    const-string v0, "345ac9226c94523aeb2be459a5d63ce3"
 
    const-string v1, "97043ef635f60558c5c9169252b3bdc9"
 
    const-string v2, "AES/CBC/NoPadding"
 
    invoke-static {v0, v1, p0, v2}, Lcom/txket/h/g;->c(Ljava/lang/String;Ljava/lang/String;[BLjava/lang/String;)[B
 
    move-result-object p0
 
    .line 2
    invoke-static {p0}, Lcom/txket/h/t;->g([B)Ljava/lang/String;
 
    move-result-object p0
 
    return-object p0
.end method
 
    public static byte[] c(String str, String str2, byte[] bArr, String str3) {
        byte[] e = e(str);
        try {
            IvParameterSpec ivParameterSpec = new IvParameterSpec(e(str2));
            SecretKeySpec secretKeySpec = new SecretKeySpec(e, "AES");
            Cipher instance = Cipher.getInstance(str3);
            instance.init(1, secretKeySpec, ivParameterSpec);
            return instance.doFinal(d(bArr));
        } catch (Exception e2) {
            e2.printStackTrace();
            return null;
        }
    }
    public static byte[] e(String str) {
        str = str.toLowerCase();
        char[] toCharArray = str.toCharArray();
        int length = str.length() / 2;
        byte[] bArr = new byte[length];
        for (int i = 0; i < length; i++) {
            int i2;
            int i3 = i * 2;
            if (toCharArray[i3] < ':') {
                i2 = toCharArray[i3] - 48;
            } else {
                i2 = toCharArray[i3] - 87;
            }
            i3++;
            if (toCharArray[i3] < ':') {
                i3 = toCharArray[i3] - 48;
            } else {
                i3 = toCharArray[i3] - 87;
            }
            bArr[i] = (byte) ((i2 * 16) + i3);
        }
        return bArr;
    }