大家好，又见面了，我是你们的朋友全栈君。
尝试了网上多种库和教程都没办法互解，JAVA代码如下，求个大佬帮忙用dart(Flutter)实现一个可以互解的aes加密代码package com.example.lib;
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public class Test {
static String keyStr = “620F15CFDB5C79C34B3940537B21EDA072E22F5D7151456DEC3932D7A2B22C53”;
static String ivStr = “85D7D7DA41E22C1A66C9C1BFC70A1088”;
public static void main(String[] args) {
String haha = encrypt(“哈哈！你好。”);//B7488CC936D5FF626F50900F99CEB2E13D99
decrypt(haha);
}
static String encrypt(String content) {
try {
byte[] ivByte = hex2byte(ivStr);
byte[] key = hex2byte(keyStr);
Cipher cipher = Cipher.getInstance(“AES/CFB/NoPadding”);
SecretKeySpec keySpec = new SecretKeySpec(key, “AES”);
IvParameterSpec ivSpec = new IvParameterSpec(ivByte);
cipher.init(1, keySpec, ivSpec);
byte[] doFinal = cipher.doFinal(content.getBytes(“UTF-8”));
System.out.println(“doFinale:” + byte2hex(doFinal));
return byte2hex(doFinal);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
static void decrypt(String content) {
try {
byte[] ivByte = hex2byte(ivStr);
byte[] contentByte = hex2byte(content);
byte[] key = hex2byte(keyStr);
Cipher cipher = Cipher.getInstance(“AES/CFB/NoPadding”);
SecretKeySpec keySpec = new SecretKeySpec(key, “AES”);
IvParameterSpec ivSpec = new IvParameterSpec(ivByte);
cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
byte[] result = cipher.doFinal(contentByte);
System.out.println(new String(result, “UTF-8”));
} catch (Exception e) {
e.printStackTrace();
}
}
public static byte[] hex2byte(String str) {
if (str == null) {
return null;
}
int length = str.length();
if (length % 2 == 1) {
return null;
}
byte[] bArr = new byte[length / 2];
for (int i = 0; i != length / 2; i++) {
int j = i * 2;
bArr[i] = (byte) Integer.parseInt(str.substring(j, j + 2), 16);
}
return bArr;
}
public static String byte2hex(byte[] bArr) {
String str = “”;
for (byte b : bArr) {
String hexString = Integer.toHexString(b & 255);
str = hexString.length() == 1 ? str + “0” + hexString : str + hexString;
}
return str.toUpperCase();
}
}
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