KrsJYj1r

1public class EncriptionDecriptionUtils {
2    private static byte[] nrlmEncription = { 0x77, 0x71, 0x72, 0x76, 0x52,
3     0x76, 0x44, 0x56, 0x68, 0x66, 0x75, 0x68, 0x77, 0x4b, 0x6f, 0x7d };
4
5    public String decriptionOfData(String data) throws Exception {
6        SecretKeySpec skeySpec = new SecretKeySpec(nrlmEncription, "AES");
7        Cipher cipher = Cipher.getInstance("AES");
8        cipher.init(Cipher.DECRYPT_MODE, skeySpec);
9        byte[] decrypted = cipher.doFinal(Base64.decode(data,         Base64.DEFAULT));
10        return new String(decrypted);
11    }
12    public String encriptionOfData(String data) throws Exception {
13       Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
14       final SecretKeySpec secretKey = new SecretKeySpec(nrlmEncription, "AES");
15       cipher.init(Cipher.ENCRYPT_MODE, secretKey);
16       return Base64.encodeToString(cipher.doFinal(data.getBytes()), Base64.DEFAULT);
17    }
18}
19	
20#import "NSData+AES.h"
21#import <CommonCrypto/CommonCryptor.h>
22
23
24@implementation EncInfo
25
26@end
27
28@implementation NSData (AES)
29
30#pragma mark - Public Methods
31
32- (NSData*) EncryptAES
33{
34    char keyPtr[kCCKeySizeAES128+1];
35    bzero( keyPtr, sizeof(keyPtr) );
36    NSString * strKey;
37   [strKey getCString: keyPtr maxLength: sizeof(keyPtr) encoding:NSUTF8StringEncoding];
38size_t numBytesEncrypted = 0;
39
40    NSUInteger dataLength = [self length];
41
42    size_t bufferSize = dataLength + kCCBlockSizeAES128;
43    void *buffer = malloc(bufferSize);
44    const unsigned char iv[] = { 0x77, 0x71, 0x72, 0x76, 0x52,
45    0x76, 0x44, 0x56, 0x68, 0x66, 0x75, 0x68, 0x77, 0x4b, 0x6f, 0x7d };
46
47    CCCryptorStatus result = CCCrypt( kCCEncrypt,
48                                 kCCAlgorithmAES128,
49                                 kCCOptionPKCS7Padding,
50                                 iv,
51                                 kCCKeySizeAES128,
52                                 nil,
53                                 [self bytes], [self length],
54                                 buffer, bufferSize,
55                                 &numBytesEncrypted );
56
57    if( result == kCCSuccess )
58        return [NSData dataWithBytesNoCopy:buffer    length:numBytesEncrypted];
59    else {
60        NSLog(@"Failed AES");
61    }
62    return nil;
63    }
64
65- (NSData *) DecryptAES
66{
67    char  keyPtr[kCCKeySizeAES128+1];
68    bzero( keyPtr, sizeof(keyPtr) );
69    NSString * strKey;
70    [strKey getCString: keyPtr maxLength: sizeof(keyPtr) encoding:   NSUTF8StringEncoding];
71
72    size_t numBytesEncrypted = 0;
73
74    NSUInteger dataLength = [self length];
75
76    size_t bufferSize = dataLength + kCCKeySizeAES128;
77    void *buffer_decrypt = malloc(bufferSize);
78    const unsigned char iv[] = { 0x77, 0x71, 0x72, 0x76, 0x52,
79    0x76, 0x44, 0x56, 0x68, 0x66, 0x75, 0x68, 0x77, 0x4b, 0x6f, 0x7d };
80
81    CCCryptorStatus result = CCCrypt( kCCDecrypt , kCCAlgorithmAES128, kCCOptionPKCS7Padding,
82                                 iv, kCCKeySizeAES128,
83                                 nil,
84                                 [self bytes], [self length],
85                                 buffer_decrypt, bufferSize,
86                                 &numBytesEncrypted );
87
88    if( result == kCCSuccess )
89        return [NSData dataWithBytesNoCopy:buffer_decrypt length:numBytesEncrypted];
90
91    return nil;
92
93    }