Ios des encryption/decryption (with base64)

# Include <CommonCrypto/CommonCryptor. h>

+ (NSString *) Encrypte :( NSString *) src key :( NSString *) key {

NSString * retStr = nil;

NSData * srcData = [src dataUsingEncoding: NSUTF8StringEncoding];

Size_t dataOutAvilable = ([srcData length] + kCCBlockSize3DES )&~ (KCCBlockSize3DES-1 );

Unsigned char * dataOut = (unsigned char *) malloc (dataOutAvilable * sizeof (unsigned char ));

Memset (void *) dataOut, 0x0, dataOutAvilable );

Size_t dataOutMoved = 0;

Byte iv [] = {0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };

Cccryptorstatus ccstatus = cccrypt (kccencrypt, encrypt, decrypt | kccoptionecbmode, (void const *) [Key utf8string], kcckeysize3des, IV, [srcdata bytes], [srcdata length], (void *) dataout, dataoutavilable, & dataoutmoved );

If (ccstatus = 0) {// success base64

Int base64len = base64_encode_length (dataoutmoved) + 2;

Char * TMP = new char [base64len];

Memset (TMP, 0, base64len );

Int base64ret = base64_encode (const char *) dataout, dataoutmoved, TMP, base64len );

If (base64ret> 0 ){

Retstr = [[nsstring alloc] initwithuf8string: TMP] autorelease];

}

Delete [] TMP;

}

// NSLog (@ "ccStatus: % d EncrypteStr: % @", ccStatus, retStr );

Delete dataOut;

Return retStr;

}

+ (NSString *) depolicte :( NSString *) src key :( NSString *) key {

NSString * retStr = nil;

Int base64Len = base64_decode_length ([src length]) + 2;

Char * tmp = new char [base64Len];

Memset (tmp, 0, base64Len );

CCCryptorStatus ccStatus = kCCParamError;

Int base64Ret = base64_decode ([src UTF8String], [src length], tmp, base64Len );

If (base64Ret> 0 ){

Size_t dataOutAvilable = (base64Len + kCCBlockSize3DES )&~ (KCCBlockSize3DES-1 );

Unsigned char * dataOut = (unsigned char *) malloc (dataOutAvilable * sizeof (unsigned char ));

Memset (void *) dataOut, 0x0, dataOutAvilable );

Size_t dataOutMoved = 0;

Byte iv [] = {0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };

CcStatus = CCCrypt (kCCDecrypt, encrypt, decrypt | kCCOptionECBMode, (void const *) [key UTF8String], kCCKeySize3DES, iv, (const void *) tmp, base64Ret, (void *) dataOut, dataOutAvilable, & dataOutMoved );

If (ccStatus = 0 ){

RetStr = [[NSString alloc] initWithBytes: dataOut length: dataOutMoved encoding: NSUTF8StringEncoding] autorelease];

}

Delete dataOut;

}

// NSLog (@ "ccStatus: % d depolicte: % @", ccStatus, retStr );

Delete [] tmp;

Return retStr;

}