在java中加密，在IOS中解密AES 128位
我必须在java中加密，在IOS Objective-C中使用AES 128位进行解密 我有一个Java程序在java中加密，在IOS中解密AES 128位,java,ios,objective-c,encryption,Java,Ios,Objective C,Encryption,我必须在java中加密，在IOS Objective-C中使用AES 128位进行解密 我有一个Java程序 import java.util.Base64; import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.SecretKey; import javax.crypto.spec.SecretKeySpec; import sun.misc.BASE64Encoder; import
import java.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import sun.misc.BASE64Encoder;
import sun.misc.BASE64Decoder;
import javax.crypto.spec.IvParameterSpec;
public class EncryptionDecryptionAES {
static Cipher cipher;
public static void main(String[] args) throws Exception {
String plainText = "AES Symmetric Encryption Decryption";
String Enc = Encrypt(plainText,"testkey");
System.out.println("Enc :" + Enc+":");
}
public static String Decrypt(String text, String key) throws Exception {
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
byte[] keyBytes = new byte[16];
byte[] b = key.getBytes("UTF-8");
int len = b.length;
if (len > keyBytes.length)
len = keyBytes.length;
System.arraycopy(b, 0, keyBytes, 0, len);
SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "AES");
IvParameterSpec ivSpec = new IvParameterSpec(keyBytes);
cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
byte[] results = new byte[text.length()];
BASE64Decoder decoder = new BASE64Decoder();
try {
results = cipher.doFinal(decoder.decodeBuffer(text));
} catch (Exception e) {
System.out.print("Erron in Decryption");
}
return new String(results, "UTF-8");
}
public static String Encrypt(String text, String key) throws Exception {
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
byte[] keyBytes = new byte[16];
byte[] b = key.getBytes("UTF-8");
int len = b.length;
if (len > keyBytes.length)
len = keyBytes.length;
System.arraycopy(b, 0, keyBytes, 0, len);
SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "AES");
IvParameterSpec ivSpec = new IvParameterSpec(keyBytes);
System.out.println(keyBytes);
System.out.println(keySpec);
System.out.println(ivSpec);
cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
byte[] results = cipher.doFinal(text.getBytes("UTF-8"));
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(results);
}
}
- (void)viewDidLoad {
[super viewDidLoad];
NSLog(@"Hello");
NSString* str = @"wLmnAsH0wEUlk/mYEBPUSQr0pMsRIFw5kgsAMr7UpuwjJo7MoxoqyBvZmPWM5DrS";
NSData* data = [str dataUsingEncoding:NSUnicodeStringEncoding];
NSLog(@"%@",[data description]);
NSString* theData = [self Decrypt: data WithKey:@"testkey"];
NSLog(@"%@", theData);
}
- (NSData *)Encrypt:(NSString *)data WithKey:(NSString *)key {
return [self AESOperation:kCCEncrypt OnData:[data dataUsingEncoding:NSUTF8StringEncoding] key:key];
}
- (NSString *)Decrypt:(NSData *)data WithKey:(NSString *)key {
return [[NSString alloc] initWithData:[self AESOperation:kCCDecrypt OnData:data key:key] encoding:NSUTF8StringEncoding];
}
- (NSData *)AESOperation:(CCOperation)operation OnData:(NSData *)data key:(NSString *)key {
char keyPtr[kCCKeySizeAES128];
bzero(keyPtr, sizeof(keyPtr));
[key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];
NSUInteger dataLength = [data length];
size_t bufferSize = dataLength + kCCBlockSizeAES128;
void *buffer = malloc(bufferSize);
size_t numBytesEncrypted = 0;
CCCryptorStatus cryptStatus = CCCrypt(operation,
kCCAlgorithmAES128,
kCCOptionPKCS7Padding,
keyPtr,
kCCBlockSizeAES128,
keyPtr,
[data bytes],
dataLength,
buffer,
bufferSize,
&numBytesEncrypted);
if (cryptStatus == kCCSuccess) {
NSLog(@"Success");
return [NSData dataWithBytesNoCopy:buffer length:numBytesEncrypted];
}
free(buffer);
return nil;
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
我做错了什么？Java代码片段使用了
PKCS5PaddingPKCS7PaddingcryptStatuskCCBlockSizeAES128CCCrypt