essai AES sur iphone

Question

mon cryptage fonctionne, mais je ne peux pas déchiffrer de bien vouloir suggérer ce que je fais mal ici

NSString *passphrase = @"hello"; 
    NSStringEncoding myEncoding = NSASCIIStringEncoding; 

    NSString *alphaStringPlain = @"cell"; 
    NSData *alphaDataPlain = [alphaStringPlain dataUsingEncoding:myEncoding]; 

    NSData *alphaDataCypher = [alphaDataPlain AESEncryptWithPassphrase:passphrase]; 
    NSString *alphaStringCypher = [[NSString alloc] initWithData:alphaDataCypher encoding:myEncoding]; 

    NSLog(alphaStringCypher); // perfeclty encypted i guess 

    /////// FOR DECRYPTION/////////////// 




    NSData *zCypher = [alphaDataPlain AESDecryptWithPassphrase:alphaStringCypher]; 
    NSString *Cypher = [[NSString alloc] initWithData:zCypher encoding:myEncoding]; 



    NSLog(@" decode %@",[Cypher dataUsingEncoding:NSUTF8StringEncoding]); 


    NSLog(@" decode %@",Cypher);// not working some garbage value 

Answer 1

Après luttant j'ai eu les ans

NSString *passphrase = @"1234567812345678"; 
     NSStringEncoding myEncoding = NSASCIIStringEncoding; 

     NSString *alphaStringPlain = @"hello"; 

     NSData *alphaDataPlain = [alphaStringPlain dataUsingEncoding:myEncoding]; 

     NSData *alphaDataCypher = [alphaDataPlain AESEncryptWithPassphrase:passphrase]; 
     NSString *alphaStringCypher = [[NSString alloc] initWithData:alphaDataCypher encoding:myEncoding]; 

     NSLog(alphaStringCypher); 

     /////// 
     NSData *zCypher = [alphaDataCypher AESDecryptWithPassphrase:passphrase]; 
     NSString *Cypher = [[NSString alloc] initWithData:zCypher encoding:myEncoding]; 


     //NSData *zCypher = [alphaStringCypher AESDecryptWithPassphrase:passphrase]; 

     NSLog(@" hua kya decode %@",cypher);// working 

Answer 2

Je pense que vous Décryptage une mauvaise valeur essayer avec ceci:

NSData *zCypher = [alphaStringCypher AESDecryptWithPassphrase:passphrase];