cstaylor/ios-crypto-api

Simplified Objective-C wrappers over various Security.framework and CommonCrypto APIs

ios-crypto-api's Issues

encryption of numbers.

Trying to encrypt very long floats... The number decrypted is not the same. Ideas?


NSMutableData * fldata = [NSMutableData dataWithCapacity:0];
float num = 0.268068601042995;
[fldata appendBytes:&num length:sizeof(float)];

id<SecretKey> key = [[[AESKeyGenerator alloc] init] generate:256 onError:&error];
AESCipher  *cipher = [[AESCipher alloc] init:ENCRYPT withKey:key];
NSMutableData * output = [NSMutableData data];
[output appendData:[cipher update:fldata onError:&error]];
[output appendData:[cipher final:&error]];
NSData  *iv = cipher.IV;

id<Cipher> dcipher = [[AESCipher alloc] init:DECRYPT withKey:key iv:iv];
NSMutableData *plainText = [NSMutableData data];
[plainText appendData:[dcipher update:output onError:&error]];
[plainText appendData:[dcipher final:&error]];

float onum;
[plainText getBytes:&onum length:sizeof(float)];
NSLog(@"onum:%.15f", onum);

print out is: onum:0.268068611621857

copy

This copy righted? or can be used?