前言
行動端越來越火了，我們在開發過程中，總是會碰到要和行動端打交道的場景，像是android和iOS的打交道。為了讓資料互動更安全，我們需要對資料進行加密傳輸。
這篇文章給大家分享AES的加密和解密、Android和ios通用的AES加密演算法、大家可以直接整合到自己的專案、伺服器介面如果是用Java寫的話、整個框架都完美了、如果是. NET寫的後台介面的話、要改造一下
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;
}rr
IOS解密
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;
}
IOS解密
private byte[] decrypt(String cmp, SecretKey sk, IvParameterSpec IV,
byte[] ciphertext) {
try {
Cipher c = Cipher.getInstance(cmp);
c.init(Cipher.DECRYPT_MODE, sk, IV);
return c.doFinal(ciphertext);
} 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");
e.printStackTrace();
}
return null;
}
IOS
Android解密rrreee
總結以上就是這篇文章的全部內容了，希望本文的內容對各位開發者們能有所幫助，如果有疑問大家可以留言交流。 更多Android、iOS和Java通用的AES128加密解密範例程式碼相關文章請關注PHP中文網！ 🎜
