static int test_answer(const struct ccdigest_info *di, test_vector *vector, size_t answer_len, void*answer) {
char *correct_answer = NULL;
if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_MD2)) correct_answer = vector->md2_answer;
else if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_MD4)) correct_answer = vector->md4_answer;
else if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_MD5)) correct_answer = vector->md5_answer;
else if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_SHA1)) correct_answer = vector->sha1_answer;
else if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_SHA224)) correct_answer = vector->sha224_answer;
else if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_SHA256)) correct_answer = vector->sha256_answer;
else if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_SHA384)) correct_answer = vector->sha384_answer;
else if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_SHA512)) correct_answer = vector->sha512_answer;
else if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_RMD128)) correct_answer = vector->rmd128_answer;
else if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_RMD160)) correct_answer = vector->rmd160_answer;
else if(ccdigest_oid_equal(di, (ccoid_t) CC_DIGEST_OID_RMD256)) correct_answer = vector->rmd256_answer;
else correct_answer = vector->rmd320_answer; // hack
byteBuffer answer_bb = bytesToBytes(answer, answer_len);
if(correct_answer == NULL) {
diag("\t\t\"%s\", // %s\n", bytesToHexString(answer_bb), digest_name(di));
return 1;
}
byteBuffer correct_answer_bb = hexStringToBytes((char *) correct_answer);
ok(bytesAreEqual(correct_answer_bb, answer_bb), "compare memory of answer");
if(bytesAreEqual(correct_answer_bb, answer_bb) == 0) {
printByteBuffer(correct_answer_bb, "Correct Answer");
printByteBuffer(answer_bb, "Provided Answer");
}
free(correct_answer_bb);
free(answer_bb);
return 1;
}
void MainWindow::handle_pushButton_decrypt_onClick()
{
int size = 0;
QString q_key = ui->textEdit_key->toPlainText();
string s_key = string((const char *)q_key.toLocal8Bit());
size = formatString(s_key);
byte key[size];
hexStringToBytes(s_key,key);
//pnt_byte(key,16);
QString q_in = ui->textEdit_input->toPlainText();
string s_in = string((const char *)q_in.toLocal8Bit());
size = formatString(s_in);
byte in[size];
hexStringToBytes(s_in,in);
//pnt_byte(in,70);
byte *out = NULL;
CRYPTER *crypter = new CRYPTER(key);
int len = crypter->decrypt(in,size,out);
//pnt_byte(out,len);
string s_out = bytesToHexString(out,len);
QString q_out = QString(QString::fromLocal8Bit(s_out.c_str()));
ui->textEdit_output->setPlainText(q_out);
//std::cout << "handle_pushButton_decrypt_onClick" << std::endl;
delete out;
delete crypter;
}
void Data::verify(LPCTSTR Description_, const uint8_t* const expectedDigest_) {
memset(actualDigest, 0, sizeof(actualDigest)); bool mdUnmatch = false;
calcSHA256();
for (int i = 0; i < 32; i++) {
if (expectedDigest_[i] != actualDigest[i]) mdUnmatch = true;
}
if (mdUnmatch) {
CodeConv::tostringstream o;
o << Description_ << _T("のSHA256ハッシュ値が一致しませんでした。") <<
_T("ファイルが壊れている虞があります。") << std::endl <<
_T("期待されるハッシュ値: ") <<
CodeConv::EnsureTStr(bytesToHexString(std::vector<uint8_t>(expectedDigest_, expectedDigest_ + 32))) << std::endl <<
_T("実際のハッシュ値: ") <<
CodeConv::EnsureTStr(bytesToHexString(std::vector<uint8_t>(actualDigest, actualDigest + 32)));
Raise(EXCEPTION_MJCORE_HASH_MISMATCH, o.str().c_str());
}
else {
CodeConv::tostringstream o;
o << Description_ << _T("のSHA256ハッシュ値の照合に成功しました。");
info(o.str().c_str());
}
}
static int test_answer(char *mode_name, test_vector *vector, void*answer, char *test_type) {
byteBuffer answer_bb = bytesToBytes(answer, CMAC_BLOCKSIZE);
if(vector->outStr == NULL) {
diag("/* CMAC-128 test %d */", vector->cnt);
diag("\t\t\"%s\",\n", bytesToHexString(answer_bb));
return 1;
}
byteBuffer correct_answer_bb = hexStringToBytes((char *) vector->outStr);
ok(bytesAreEqual(correct_answer_bb, answer_bb), "compare memory of answer");
if(bytesAreEqual(correct_answer_bb, answer_bb) == 0) {
diag("Failed Test (%d) for CMAC-128-%s %s\n", vector->cnt, mode_name, test_type);
printByteBuffer(correct_answer_bb, "Correct Answer");
printByteBuffer(answer_bb, "Provided Answer");
}
free(correct_answer_bb);
free(answer_bb);
return 1;
}
char
*bytesToHexStringWithSpaces(byteBuffer bb, int breaks)
{
char *retval;
size_t i, j;
if(breaks == 0) {
return bytesToHexString(bb);
}
breaks /= 2;
retval = malloc(bb->len*2 + 1 + (bb->len*2 / breaks) + 10);
for(i=0, j=0; i<bb->len; i++, j+=2) {
retval[j] = nibbleToChar(bb->bytes[i] >> 4);
retval[j+1] = nibbleToChar(bb->bytes[i] & 0x0f);
if(((i+1) % breaks) == 0) {
retval[j+2] = ' ';
retval[j+3] = 0;
j++;
}
}
return retval;
}
std::string hashToString(const Hash& in)
{
return bytesToHexString((unsigned char*)&in, sizeof(in));
}
static int Integrity_POST(kmod_info_t* pkmod, void* d, int verbose)
{
int result = -1; // Set to zero for sucesses until it all works
size_t sha256DigestBufferLength = 32;
if (NULL == d)
{
if (verbose)
{
kprintf("The AppleTEXTHash_t pointer was NOT passed to the Integrity_POST function\n");
}
return result;
}
AppleTEXTHash_t* pHashData = (AppleTEXTHash_t*)d;
if (pHashData->ath_version != 1 || pHashData->ath_length != (int)sha256DigestBufferLength)
{
if (verbose)
{
kprintf("The AppleTEXTHash_t pointer passed to Integrity_POST function, is invalid\n");
}
return result;
}
if (NULL == pHashData->ath_hash)
{
if (verbose)
{
kprintf("The AppleTEXTHash_t pointer passed to Integrity_POST function,has a null HASH pointer\n");
}
return result;
}
unsigned long plist_hash_output_buffer_size = (sha256DigestBufferLength * 2) + 1;
unsigned char plist_hash_output_buffer[plist_hash_output_buffer_size];
char* pPlistHexBuf = (char*)bytesToHexString(pHashData->ath_hash, pHashData->ath_length, plist_hash_output_buffer, plist_hash_output_buffer_size);
if (verbose)
{
kprintf("Plist hmac value is %s\n", pPlistHexBuf);
}
// Now calcuate the HMAC
struct mach_header* pmach_header = (struct mach_header*)pkmod->address;
struct load_command* pLoadCommand = NULL;
uint32_t num_load_commands = 0;
if (pmach_header->magic == MH_MAGIC_64)
{
struct mach_header_64* pmach64_header = (struct mach_header_64*)pmach_header;
num_load_commands = pmach64_header->ncmds;
pLoadCommand = (struct load_command*)(((unsigned char*)pmach_header) + sizeof(struct mach_header_64));
}
else if (pmach_header->magic == MH_MAGIC)
{
num_load_commands = pmach_header->ncmds;
pLoadCommand = (struct load_command*)(((unsigned char*)pmach_header) + sizeof(struct mach_header));
}
if (NULL == pLoadCommand)
{
if (verbose)
{
kprintf("pLoadCommand is NULL!\n");
}
return result;
}
const struct ccdigest_info* di = ccsha256_di();
unsigned char hmac_key = 0;
cchmac_ctx_decl(di->state_size, di->block_size, ctx);
cchmac_init(di, ctx, 1, &hmac_key);
int hashCreated = 0;
unsigned long iCnt;
unsigned long jCnt;
struct segment_command* pSniffPtr = (struct segment_command*)pLoadCommand;
// Loop through the Segments to find the __TEXT, __text segment
for (iCnt = 0; iCnt < num_load_commands; iCnt++)
{
// The struct segment_command and the struct segment_command_64 have the same
// first three fields so sniff the name by casting to a struct segment_command
if (strncmp("__TEXT", pSniffPtr->segname, strlen("__TEXT")))
{
// These are not the droids we are looking for
// MOve the SniffPtr to the next segment;
if (LC_SEGMENT_64 == pSniffPtr->cmd)
{
struct segment_command_64* pSegmentPtr = (struct segment_command_64*)pSniffPtr;
pSniffPtr = (struct segment_command*)(((unsigned char *)pSegmentPtr) + pSegmentPtr->cmdsize);
}
else if (LC_SEGMENT == pSniffPtr->cmd)
{
pSniffPtr = (struct segment_command*)(((unsigned char *)pSniffPtr) + pSniffPtr->cmdsize);
}
// Go back to the top of the loop and look again
continue;
}
// Bingo! We found the __TEXT segment!
// Deal with a 64 bit segment
if (LC_SEGMENT_64 == pLoadCommand->cmd)
{
struct segment_command_64* pSegmentPtr = NULL;
// This is a 64 bit load segment command
pSegmentPtr = (struct segment_command_64*)pSniffPtr;
unsigned int numSections = (unsigned int)pSegmentPtr->nsects;
struct section_64* pSectionPtr = (struct section_64*)(((unsigned char*)pSegmentPtr) + sizeof(struct segment_command_64));
int texttextsectionprocessed = 0;
// Need to find the __text __TEXT section
for (jCnt = 0; jCnt < numSections; jCnt++)
{
if ( !strcmp(pSectionPtr->sectname, "__text") && !strcmp(pSectionPtr->segname, "__TEXT"))
{
// Found it
unsigned char* pSectionData = (unsigned char*)(((unsigned char*)pmach_header) + pSectionPtr->offset);
cchmac_update(di, ctx, (unsigned long)pSectionPtr->size, pSectionData);
hashCreated = 1;
texttextsectionprocessed = 1;
break;
}
else
{
// Move to the next section record
pSectionPtr++;
}
}
if (texttextsectionprocessed)
{
// The text text section was found and processed
break;
}
}
else if (LC_SEGMENT == pLoadCommand->cmd) // Deal with a 32 bit segment
{
struct segment_command* pSegmentPtr = NULL;
// This is a 32 bit load segment command
pSegmentPtr = (struct segment_command*)pLoadCommand;
unsigned int numSections = (unsigned int)pSegmentPtr->nsects;
struct section* pSectionPtr = (struct section*)(((unsigned char*)pSegmentPtr) + sizeof(struct segment_command));
int texttextsectionprocessed = 0;
// Need to find the __text __TEXT section
for (jCnt = 0; jCnt < numSections; jCnt++)
{
if ( !strcmp(pSectionPtr->sectname, "__text") && !strcmp(pSectionPtr->segname, "__TEXT"))
{
// Found it
unsigned char* pSectionData = (unsigned char*)(((unsigned char*)pmach_header) + pSectionPtr->offset);
cchmac_update(di, ctx, (unsigned long)pSectionPtr->size, pSectionData);
hashCreated = 1;
texttextsectionprocessed = 1;
break;
}
else
{
// Move to the next section record
pSectionPtr++;
}
}
if (texttextsectionprocessed)
{
// The text text section was found and processed
// Time to bail on the loop
break;
}
}
}
unsigned long hash_output_buffer_size = (sha256DigestBufferLength * 2) + 1;
unsigned char hash_output_buffer[hash_output_buffer_size];
unsigned char hmac_buffer[sha256DigestBufferLength];
memset(hmac_buffer, 0, sha256DigestBufferLength);
// Check to see if the hash was created
if (hashCreated)
{
// finalize the HMAC
cchmac_final(di, ctx, hmac_buffer);
char* pHexBuf = (char*)bytesToHexString(hmac_buffer, sha256DigestBufferLength, hash_output_buffer, hash_output_buffer_size);
if (verbose)
{
kprintf("Computed hmac value is %s\n", pHexBuf);
}
}
else
{
if (verbose)
{
kprintf("Integrity_POST: WARNING! could not create the hash!\n");
}
return -1;
}
#ifdef FORCE_FAIL
// futz with the generated hmac
hash_output_buffer[0] = 0; // This will always work because it is the charter representation of the
// hash that is being checked.
#endif
result = memcmp(hash_output_buffer, plist_hash_output_buffer, hash_output_buffer_size);
return result;
}