PHP,Android,IOS通信之 AES128加解密案例程序android上調(diào)用代碼：
mcrypt = new MCrypt();/* 加密*/String encrypted = MCrypt.bytesToHex( mcrypt.encrypt("需加密的字符") );/* 解密*/String decrypted = new String( mcrypt.decrypt( encrypted ) );PHP上調(diào)用的代碼：$mcrypt = new MCrypt();#Encrypt$encrypted = $mcrypt->encrypt("需加密的字符");#Decrypt$decrypted = $mcrypt->decrypt($encrypted);IOS上調(diào)用的代碼：#import "Tool.h"http:// 加解密字符串NSString *string1 = @"fengzihua";NSString *encString = [Tool crypt:string1];NSLog(@"%@",encString); NSString *rawString = [Tool decrypt:encString];NSLog(@"%@",rawString); android實(shí)現(xiàn)加解密的代碼：/***********//**JAVA**/import java.security.NoSuchAlgorithmException;import javax.crypto.Cipher;import javax.crypto.NoSuchPaddingException;import javax.crypto.spec.IvParameterSpec;import javax.crypto.spec.SecretKeySpec;public class MCrypt {private String iv = "fedcba9876543210";//虛擬的 iv (需更改) private IvParameterSpec ivspec; private SecretKeySpec keyspec; private Cipher cipher; private String SecretKey = "0123456789abcdef";//虛擬的 密鑰 (需更改） public MCrypt() { ivspec = new IvParameterSpec(iv.getBytes()); keyspec = new SecretKeySpec(SecretKey.getBytes(), "AES"); try { cipher = Cipher.getInstance("AES/CBC/NoPadding"); } catch (NoSuchAlgorithmException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (NoSuchPaddingException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public byte[] encrypt(String text) throws Exception { if(text == null || text.length() == 0) throw new Exception("Empty string"); byte[] encrypted = null; try { cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec); encrypted = cipher.doFinal(padString(text).getBytes()); } catch (Exception e) { throw new Exception("[encrypt] " + e.getMessage()); } return encrypted; } public byte[] decrypt(String code) throws Exception { if(code == null || code.length() == 0) throw new Exception("Empty string"); byte[] decrypted = null; try { cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec); decrypted = cipher.doFinal(hexToBytes(code)); } catch (Exception e) { throw new Exception("[decrypt] " + e.getMessage()); } return decrypted; } public static String bytesToHex(byte[] data) { if (data==null) { return null; } int len = data.length; String str = ""; for (int i=0; ihex2bin($key); $iv = $this->iv; $td = mcrypt_module_open('rijndael-128', '', 'cbc', $iv); mcrypt_generic_init($td, $this->key, $iv); $encrypted = mcrypt_generic($td, $str); mcrypt_generic_deinit($td); mcrypt_module_close($td); return bin2hex($encrypted); } function decrypt($code) { //$key = $this->hex2bin($key); $code = $this->hex2bin($code); $iv = $this->iv; $td = mcrypt_module_open('rijndael-128', '', 'cbc', $iv); mcrypt_generic_init($td, $this->key, $iv); $decrypted = mdecrypt_generic($td, $code); mcrypt_generic_deinit($td); mcrypt_module_close($td); return utf8_encode(trim($decrypted)); } protected function hex2bin($hexdata) { $bindata = ''; for ($i = 0; $i < strlen($hexdata); $i += 2) { $bindata .= chr(hexdec(substr($hexdata, $i, 2))); } return $bindata; } }
、、、
IOS實(shí)現(xiàn)加解密的代碼：/**********//**Tool.h**/#import#import "CommonCrypto/CommonCrypto.h"
@interface Tool : NSObject
+ (NSString*) crypt:(NSString*)recource;
+ (NSString*) decrypt:(NSString*)recource;
@end
/**Tool.m**/
#import "Tool.h"
#define kCryptingKey @"0123456789abcdef"? /// 同上
#define kCryptingIv @"fedcba9876543210"? /// 同上
@implementation Tool
+ (NSString*) crypt:(NSString*)recource
{
? ? NSData *data = [recource dataUsingEncoding:NSUTF8StringEncoding];
? ? NSData *encrypt = [self AES128EncryptWithKey:kCryptingKey withData:data iv:kCryptingIv];
? ? return [self stringWithHexBytes:encrypt];
}
+ (NSString*) decryptData:(NSData*)recource
{
? ? NSData *decrypt = [self AES128DecryptWithKey:kCryptingKey withData:recource iv:kCryptingIv];
? ? return [[NSString alloc] initWithData:decrypt encoding:NSUTF8StringEncoding];
}
+ (NSString*) decrypt:(NSString*)recource
{
? ? NSData* data=[self decodeFromHexidecimal:recource];
? ? NSData *decrypt = [self AES128DecryptWithKey:kCryptingKey withData:data iv:kCryptingIv];
? ? return [[NSString alloc] initWithData:decrypt encoding:NSUTF8StringEncoding];
}
+ (NSData *) decodeFromHexidecimal:(NSString*)str
{
? ? NSString *command = [NSString stringWithString:str];
? ? command = [command stringByReplacingOccurrencesOfString:@" " withString:@""];
? ? NSMutableData *commandToSend = [[NSMutableData data] init];
? ? unsigned char whole_byte;
? ? char byte_chars[3] = {'\0','\0','\0'};
? ? int i;
? ? for (i=0; i < [command length]/2; i++) {
? ? ? ? byte_chars[0] = [command characterAtIndex:i*2];
? ? ? ? byte_chars[1] = [command characterAtIndex:i*2+1];
? ? ? ? whole_byte = strtol(byte_chars, NULL, 16);
? ? ? ? [commandToSend appendBytes:&whole_byte length:1];
? ? }
? ? return commandToSend;
}
+ (NSData *)AES128EncryptWithKey:(NSString *)key withData:(NSData*)_data iv:(NSString *) iv
{
? ? char keyPtr[kCCKeySizeAES128 + 1];
? ? memset(keyPtr, 0, sizeof(keyPtr));
? ? [key getCString:keyPtr maxLength:sizeof( keyPtr ) encoding:NSUTF8StringEncoding];
? ? char ivPtr[kCCBlockSizeAES128 + 1];
? ? memset(ivPtr, 0, sizeof(ivPtr));
? ? [iv getCString:ivPtr maxLength:sizeof(ivPtr) encoding:NSUTF8StringEncoding];
? ? NSUInteger dataLength = [_data length];
? ? int diff = kCCKeySizeAES128 - (dataLength % kCCKeySizeAES128);
? ? unsigned long int newSize = 0;
? ? if(diff > 0)
? ? {
? ? ? ? newSize = dataLength + diff;
? ? }
? ? char dataPtr[newSize];
? ? memcpy(dataPtr, [_data bytes], [_data length]);
? ? for(int i = 0; i < diff; i++)
? ? {
? ? ? ? dataPtr[i + dataLength] = 0x00;
? ? }
? ? size_t bufferSize = newSize + kCCBlockSizeAES128;
? ? void *buffer = malloc( bufferSize );
? ? memset(buffer, 0, bufferSize);
? ? size_t numBytesEncrypted = 0;
? ? CCCryptorStatus cryptStatus = CCCrypt( kCCEncrypt, kCCAlgorithmAES128, 0x0000,
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? keyPtr, kCCKeySizeAES128,
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ivPtr,
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? dataPtr,
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? sizeof(dataPtr),
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? buffer, bufferSize, /* output */
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? &numBytesEncrypted );
? ? if( cryptStatus == kCCSuccess )
? ? {
? ? ? ? //the returned NSData takes ownership of the buffer and will free it on deallocation
? ? ? ? return [NSData dataWithBytesNoCopy:buffer length:numBytesEncrypted];
? ? }
? ? free( buffer ); //free the buffer
? ? return nil;
}
+ (NSData *)AES128DecryptWithKey:(NSString *)key withData:(NSData*)data iv:(NSString *) iv
{
? ? char keyPtr[kCCKeySizeAES128 + 1];
? ? memset(keyPtr, 0, sizeof(keyPtr));
? ? [key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];
? ? char ivPtr[kCCBlockSizeAES128 + 1];
? ? memset(ivPtr, 0, sizeof(ivPtr));
? ? [iv getCString:ivPtr maxLength:sizeof(ivPtr) encoding:NSUTF8StringEncoding];
? ? NSUInteger dataLength = [data length];
? ? size_t bufferSize = dataLength + kCCBlockSizeAES128;
? ? void *buffer = malloc(bufferSize);
? ? size_t numBytesDecrypted = 0;
? ? CCCryptorStatus cryptStatus = CCCrypt(kCCDecrypt, kCCAlgorithmAES128,? 0x0000,
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? keyPtr, kCCBlockSizeAES128,
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ivPtr,
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? [data bytes],
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? dataLength,
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? buffer, bufferSize, /* output */
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? &numBytesDecrypted);
? ? if (cryptStatus == kCCSuccess) {
? ? ? ? //the returned NSData takes ownership of the buffer and will free it on deallocation
? ? ? ? return [NSData dataWithBytesNoCopy:buffer length:numBytesDecrypted];
? ? }
? ? free(buffer); //free the buffer;
? ? return nil;
}
+ (NSString*) stringWithHexBytes:(NSData*)_data {
? ? NSMutableString *stringBuffer = [NSMutableString stringWithCapacity:([_data length] * 2)];
? ? const unsigned char *dataBuffer = [_data bytes];
? ? int i;
? ? for (i = 0; i < [_data length]; ++i) {
? ? ? ? [stringBuffer appendFormat:@"%02lX", (unsigned long)dataBuffer[i]];
? ? }
? ? return [stringBuffer copy];
}
@end
