iphone - 在iOS中加密和解密密码

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我想在iOS中加密密码。

NSData *dataIn = [@"Now is the time for all good computers to come to the aid of their masters." dataUsingEncoding:NSASCIIStringEncoding];
NSMutableData *macOut = [NSMutableData dataWithLength:CC_SHA256_DIGEST_LENGTH];

CC_SHA256(dataIn.bytes, dataIn.length,  macOut.mutableBytes);

NSLog(@"dataIn: %@", dataIn);
NSLog(@"macOut: %@", macOut);

我想用指定的键创建。有没有办法做到这一点。

谢谢。

最佳答案

如果可以使用NSString，则可以下载NSString Additions。

好的教程here