android java加密_Android、iOS和Java通用的AES128加密解密示例代码

前言

移动端越来越火了，我们在开发过程中，总会碰到要和移动端打交道的场景，比如android和iOS的打交道。为了让数据交互更安全，我们需要对数据进行加密传输。

这篇文章给大家分享AES的加密和解密、Android和ios通用的AES加密算法、大家可以直接集成到自己的项目、服务器接口如果是用Java写的话、整个框架都完美了、如果是.NET编写的后台接口的话、得改造一下哦

IOS加密

/*加密方法*/

(NSString *)AES256EncryptWithPlainText:(NSString *)plain {

NSData *plainText = [plain dataUsingEncoding:NSUTF8StringEncoding];

// ´key´ should be 32 bytes for AES256, will be null-padded otherwise

char keyPtr[kCCKeySizeAES256 1]; // room for terminator (unused)

bzero(keyPtr, sizeof(keyPtr)); // fill with zeroes (for padding)

NSUInteger dataLength = [plainText length];

size_t bufferSize = dataLength kCCBlockSizeAES128;

void *buffer = malloc(bufferSize);

bzero(buffer, sizeof(buffer));

size_t numBytesEncrypted = 0;

CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt, kCCAlgorithmAES128,kCCOptionPKCS7Padding,

[[NSData AESKeyForPassword:PASSWORD] bytes], kCCKeySizeAES256,

ivBuff /* initialization vector (optional) */,

[plainText bytes], dataLength, /* input */

buffer, bufferSize, /* output */

&numBytesEncrypted);

if (cryptStatus == kCCSuccess) {

NSData *encryptData = [NSData dataWithBytesNoCopy:buffer length:numBytesEncrypted];

return [encryptData base64Encoding];

}

free(buffer); //free the buffer;

return nil;

}

IOS解密

/*解密方法*/

(NSString *)AES256DecryptWithCiphertext:(NSString *)ciphertexts{

NSData *cipherData = [NSData dataWithBase64EncodedString:ciphertexts];

// ´key´ should be 32 bytes for AES256, will be null-padded otherwise

char keyPtr[kCCKeySizeAES256 1]; // room for terminator (unused)

bzero(keyPtr, sizeof(keyPtr)); // fill with zeroes (for padding)

NSUInteger dataLength = [cipherData length];

size_t bufferSize = dataLength kCCBlockSizeAES128;

void *buffer = malloc(bufferSize);

size_t numBytesDecrypted = 0;

CCCryptorStatus cryptStatus = CCCrypt(kCCDecrypt, kCCAlgorithmAES128, kCCOptionPKCS7Padding,

[[NSData AESKeyForPassword:PASSWORD] bytes], kCCKeySizeAES256,

ivBuff ,/* initialization vector (optional) */

[cipherData bytes], dataLength, /* input */

buffer, bufferSize, /* output */

&numBytesDecrypted);

if (cryptStatus == kCCSuccess) {

NSData *encryptData = [NSData dataWithBytesNoCopy:buffer length:numBytesDecrypted];

return [[[NSString alloc] initWithData:encryptData encoding:NSUTF8StringEncoding] init];

}

free(buffer); //free the buffer;

return nil;

}

Android加密

private byte[] encrypt(String cmp, SecretKey sk, IvParameterSpec IV,

byte[] msg) {

try {

Cipher c = Cipher.getInstance(cmp);

c.init(Cipher.ENCRYPT_MODE, sk, IV);

return c.doFinal(msg);

} catch (NoSuchAlgorithmException nsae) {

Log.e("AESdemo", "no cipher getinstance support for " cmp);

} catch (NoSuchPaddingException nspe) {

Log.e("AESdemo", "no cipher getinstance support for padding " cmp);

} catch (InvalidKeyException e) {

Log.e("AESdemo", "invalid key exception");

} catch (InvalidAlgorithmParameterException e) {

Log.e("AESdemo", "invalid algorithm parameter exception");

} catch (IllegalBlockSizeException e) {

Log.e("AESdemo", "illegal block size exception");

} catch (BadPaddingException e) {

Log.e("AESdemo", "bad padding exception");

}

return null;

}

Android解密

private byte[] decrypt(String cmp, SecretKey sk, IvParameterSpec IV,

byte[] ciphertext) {