86 lines
2.9 KiB
Vala
86 lines
2.9 KiB
Vala
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using GLib;
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using Pluie;
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uint8 gmul (uint8 a, uint8 b) {
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uint8 p = 0;
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uint8 counter;
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uint8 hi_bit_set;
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for (counter = 0; counter < 8; counter++) {
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if ((b & 1) == 1)
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p ^= a;
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hi_bit_set = (a & 0x80);
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a <<= 1;
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if (hi_bit_set == 0x80)
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a ^= 0x1b;
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b >>= 1;
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}
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return p;
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}
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int main (string[] argv)
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{
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Pluie.init ();
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//~ Pluie.random = new Crypt.PseudoRandom (0x4f1b6a28);
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var path = "out.txt";
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uint8[] rawdata = new uint8[0];
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int siz = 0;
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uint8 CHUNK_SIZE = 12;
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stdout.printf ("\n== file : %s ==============\n", path);
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var ics = new Io.InputChunkStream (path, CHUNK_SIZE);
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while (ics.read () != null) {
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stdout.printf ("%06lu [%02u:%02u]\t", ics.get_chunk_index (), ics.get_buffer_size (), ics.get_chunk_size ());
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for (var i = 0; i < ics.get_buffer_size (); i++) {
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rawdata += ics.get_buffer ()[i]; siz++;
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stdout.printf ("%02x ", ics.get_buffer ()[i]);
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}
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stdout.printf ("\n");
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}
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stdout.printf ("\n");
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rawdata += (uint8) '\0';
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rawdata.resize (siz);
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stdout.printf ("len %i - data :\n%s\n", rawdata.length, (string) rawdata);
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//~ stdout.printf ("\nlength : %u\n", data.length);
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var chamah = new Crypt.Chamah (path);
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var data = chamah.encode ();
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var file = File.new_for_path ("out2.txt");
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// delete if file already exists
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if (file.query_exists ()) {
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file.delete ();
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}
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var dos = new DataOutputStream (file.create (FileCreateFlags.REPLACE_DESTINATION));
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ulong written = 0;
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while (written < data.length) {
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// sum of the bytes of 'text' that already have been written to the stream
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written += dos.write (data[written:data.length]);
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stdout.printf ("written %lu", written);
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}
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stdout.printf ("\n");
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path = "out2.txt";
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stdout.printf ("\n== file : %s ==============\n", path);
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ics = new Io.InputChunkStream (path, CHUNK_SIZE);
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while(ics.read () != null) {
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stdout.printf ("%06lu [%02u:%02u]\t", ics.get_chunk_index (), ics.get_buffer_size (), ics.get_chunk_size ());
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for (var i = 0; i < ics.get_buffer_size (); i++) {
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stdout.printf ("%02x ", ics.get_buffer ()[i]);
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}
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stdout.printf ("\n");
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}
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stdout.printf ("\n");
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var mdata = chamah.decode (path);
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uint8[] skey = { 0xe5, 0x03, 0x07, 0xc3, 0x9f, 0xd2, 0xfe, 0x00, 0xa5, 0x4b, 0xc7, 0x28, 0xb4, 0x63, 0x12, 0x99 };
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uint8[] smask = { 0xc7, 0x4e, 0xd4, 0x00, 0xa0, 0x1d, 0x6a, 0xb1, 0x55, 0x3e, 0xa5, 0xf0, 0x06, 0xd7, 0xe3, 0x5b };
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string hb = Hmac.compute_for_data (ChecksumType.SHA256, skey, mdata.data);
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stdout.printf ("hmac-sha256 :\n%s\n", hb);
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Checksum checksum = new Checksum (ChecksumType.SHA256);
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checksum.update (mdata.data, (size_t) mdata.data.length);
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unowned string digest = checksum.get_string ();
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stdout.printf ("sha256 :\n%s\n", digest);
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return 0;
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}
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