Question

如何通过iso10126padding和CBC模式加密AES 256中的NSDATA，需要像android的密码那样做。请帮助用AES256加密对NSData进行加密。

Answer 1

转到这个问题它会对你有所帮助：AES Encryption for an NSString on the iPhone

或转到：https://github.com/RNCryptor/RNCryptor

在Objective-C

中

的OBJ-C

//
// Encryption
//
NSString *password = @"Secret password";
RNEncryptor *encryptor = [[RNEncryptor alloc] initWithPassword:password];
NSMutableData *ciphertext = [NSMutableData new];

// ... Each time data comes in, update the encryptor and accumulate some ciphertext ...
[ciphertext appendData:[encryptor updateWithData:data]];

// ... When data is done, finish up ...
[ciphertext appendData:[encryptor finalData]];


//
// Decryption
//
RNDecryptor *decryptor = [[RNDecryptor alloc] initWithPassword:password];
NSMutableData *plaintext = [NSMutableData new];

// ... Each time data comes in, update the decryptor and accumulate some plaintext ...
NSError *error = nil;
NSData *partialPlaintext = [decryptor updateWithData:data error:&error];
if (error != nil) {
    NSLog(@"FAILED DECRYPT: %@", error);
    return;
}
[plaintext appendData:partialPlaintext];

// ... When data is done, finish up ...
NSError *error = nil;
NSData *partialPlaintext = [decryptor finalDataAndReturnError:&error];
if (error != nil) {
    NSLog(@"FAILED DECRYPT: %@", error);
    return;
}

[ciphertext appendData:partialPlaintext];

Answer 2

您可以将属性设置为Transformable并使用您自己的Transformer类来应用加密/解密。

这是可转换属性的指南： enter link description here

需要加密AES256

2 个答案: