mirror of
https://github.com/qpdf/qpdf.git
synced 2024-12-23 03:18:59 +00:00
aaeb71093d
git-svn-id: svn+q:///qpdf/trunk@813 71b93d88-0707-0410-a8cf-f5a4172ac649
113 lines
2.1 KiB
C++
113 lines
2.1 KiB
C++
#include <qpdf/Pl_AES_PDF.hh>
|
|
#include <qpdf/Pl_StdioFile.hh>
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <iostream>
|
|
#include <stdlib.h>
|
|
|
|
static void usage()
|
|
{
|
|
std::cerr << "Usage: aes [+-]cbc { -encrypt | -decrypt }"
|
|
<< " hex-key infile outfile" << std::endl;
|
|
exit(2);
|
|
}
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
if (argc != 6)
|
|
{
|
|
usage();
|
|
}
|
|
|
|
char* cbc = argv[1];
|
|
char* action = argv[2];
|
|
char* hexkey = argv[3];
|
|
char* infilename = argv[4];
|
|
char* outfilename = argv[5];
|
|
|
|
bool cbc_mode = true;
|
|
if (strcmp(cbc, "-cbc") == 0)
|
|
{
|
|
cbc_mode = false;
|
|
}
|
|
else if (strcmp(cbc, "+cbc") != 0)
|
|
{
|
|
usage();
|
|
}
|
|
|
|
bool encrypt = true;
|
|
if (strcmp(action, "-decrypt") == 0)
|
|
{
|
|
encrypt = false;
|
|
}
|
|
else if (strcmp(action, "-encrypt") != 0)
|
|
{
|
|
usage();
|
|
}
|
|
|
|
unsigned int hexkeylen = strlen(hexkey);
|
|
unsigned int keylen = hexkeylen / 2;
|
|
if (keylen != Pl_AES_PDF::key_size)
|
|
{
|
|
std::cerr << "key length must be " << Pl_AES_PDF::key_size
|
|
<< " bytes" << std::endl;
|
|
exit(2);
|
|
}
|
|
|
|
FILE* infile = fopen(infilename, "rb");
|
|
if (infile == 0)
|
|
{
|
|
std::cerr << "can't open " << infilename << std::endl;
|
|
exit(2);
|
|
}
|
|
|
|
FILE* outfile = fopen(outfilename, "wb");
|
|
if (outfile == 0)
|
|
{
|
|
std::cerr << "can't open " << outfilename << std::endl;
|
|
exit(2);
|
|
}
|
|
|
|
unsigned char key[Pl_AES_PDF::key_size];
|
|
for (unsigned int i = 0; i < strlen(hexkey); i += 2)
|
|
{
|
|
char t[3];
|
|
t[0] = hexkey[i];
|
|
t[1] = hexkey[i + 1];
|
|
t[2] = '\0';
|
|
|
|
long val = strtol(t, 0, 16);
|
|
key[i/2] = (unsigned char) val;
|
|
}
|
|
|
|
Pl_StdioFile* out = new Pl_StdioFile("stdout", outfile);
|
|
Pl_AES_PDF* aes = new Pl_AES_PDF("aes_128_cbc", out, encrypt, key);
|
|
if (! cbc_mode)
|
|
{
|
|
aes->disableCBC();
|
|
}
|
|
|
|
// 16 < buffer size, buffer_size is not a multiple of 8 for testing
|
|
unsigned char buf[83];
|
|
bool done = false;
|
|
while (! done)
|
|
{
|
|
int len = fread(buf, 1, sizeof(buf), infile);
|
|
if (len <= 0)
|
|
{
|
|
done = true;
|
|
}
|
|
else
|
|
{
|
|
aes->write(buf, len);
|
|
}
|
|
}
|
|
aes->finish();
|
|
delete aes;
|
|
delete out;
|
|
fclose(infile);
|
|
fclose(outfile);
|
|
return 0;
|
|
}
|