I am facing error in AES encrypt and decrypt
I am using these CODE
And using in my viewcontroller like this // read show error comment in code
Please fix how to use it?
#import "CryptLib.h"
#import "NSData+Base64.h"
-(NSData *)encryption:(NSString*)myString
{
NSString * secret = @"This the sample text has to be encrypted"; // this is the text that you want to encrypt.
NSString * key = @"shared secret"; //secret key for encryption. To make encryption stronger, we will not use this key directly. We'll first hash the key next step and then use it.
key = [[CryptLib alloc] sha256:key length:32]; //this is very important, 32 bytes = 256 bit
NSString * iv = [[[[CryptLib alloc] generateRandomIV:11] base64EncodingWithLineLength:0] substringToIndex:16]; //Here we are generating random initialization vector (iv). Length of this vector = 16 bytes = 128 bits //SHOWS ERROR HERE
// Now that we have input text, hashed key and random IV, we are all set for encryption:
NSData * encryptedData = [[CryptLib alloc] encrypt:[secret dataUsingEncoding:NSUTF8StringEncoding] key:key iv:iv];
NSLog(@"encrypted data:: %@",[encryptedData base64EncodingWithLineLength:0]); //print the encrypted text //SHOWS ERROR HERE
// Encryption = [plainText + secretKey + randomIV] = Cyphertext
return encryptedData;
}
