以下是我加密字符串的代码,
NSString *token = @"us=foo;pw=bar;pwAlg=false;";
NSString *key = @"testtest";
const void *vplainText;
size_t plainTextBufferSize;
plainTextBufferSize = [token length];
vplainText = (const void *) [token UTF8String];
CCCryptorStatus ccStatus;
uint8_t *bufferPtr = NULL;
size_t bufferPtrSize = 0;
size_t *movedBytes;
bufferPtrSize = (plainTextBufferSize + kCCBlockSize3DES) & ~(kCCBlockSize3DES - 1);
bufferPtr = malloc( bufferPtrSize * sizeof(uint8_t));
memset((void *)bufferPtr, 0x0, bufferPtrSize);
// memset((void *) iv, 0x0, (size_t) sizeof(iv));
NSString *initVec = @"init Vec";
const void *vkey = (const void *) [key UTF8String];
const void *vinitVec = (const void *) [initVec UTF8String];
ccStatus = CCCrypt(kCCEncrypt,
kCCAlgorithmDES,
kCCOptionECBMode,
vkey, //"123456789012345678901234", //key
kCCKeySizeDES,
NULL,// vinitVec, //"init Vec", //iv,
vplainText, //"Your Name", //plainText,
plainTextBufferSize,
(void *)bufferPtr,
bufferPtrSize,
movedBytes);
NSString *result;
NSData *myData = [NSData dataWithBytes:(const void *)bufferPtr length:(NSUInteger)movedBytes];
result = [myData base64Encoding];
NSLog( @"Original String dddd: %@", result );
它在行上提示我EXC_BAD_ACCESS ccStatus = CCCrypt(kCCEncrypt,
任何人都可以提供建议吗?
答案 0 :(得分:1)
这是CCCrypt
的最后一个参数。它试图输出一个值(所以你知道它写的数据的大小),你给它一个指针。您需要为其指定size_t
变量的地址。
尝试这样的事情:
size_t movedBytes;
ccStatus = CCCrypt(kCCEncrypt,
kCCAlgorithmDES,
kCCOptionECBMode,
vkey, //"123456789012345678901234", //key
kCCKeySizeDES,
NULL,// vinitVec, //"init Vec", //iv,
vplainText, //"Your Name", //plainText,
plainTextBufferSize,
(void *)bufferPtr,
bufferPtrSize,
&movedBytes);