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49 commits

Author SHA1 Message Date
Con Kolivas 5fd7c82e1f Implement ciphertext stealing to not have to pad compressed blocks courtesy of Serge Belyshev who saved me hours of debugging thanks! 2011-03-16 21:24:05 +11:00
Con Kolivas 57944b1d5c Zero, unlock and free ram more strictly. 2011-03-16 12:38:10 +11:00
Con Kolivas 7e71d8689f Put carriage returns in right place after password prompts. 2011-03-16 11:10:46 +11:00
Con Kolivas 928a0a098a Consolidate padded length throughout. 2011-03-16 10:29:16 +11:00
Con Kolivas f61632670e Encrypt the md5 value as well to make the file unidentifiable. 2011-03-16 00:29:10 +11:00
Con Kolivas bf1c1ababc Support correct seeking when doing get_fileinfo on encrypted archives. 2011-03-16 00:04:44 +11:00
Con Kolivas c5938c6a8b Implement the actual aes cbc encryption and decryption. 2011-03-15 23:52:39 +11:00
Con Kolivas acb023988f Generate sha512 hash and hash iv required to encrypt based on password, timestamp, loops and random salt. 2011-03-15 21:18:29 +11:00
Con Kolivas 412cf013c4 Implement passphrase input. 2011-03-15 16:32:32 +11:00
Con Kolivas 202d972a6c Add encryption -e option and flag encryption with a control flag, removing encrypt field. 2011-03-15 15:04:58 +11:00
Con Kolivas 65f901a83c Get the seconds, salt and encryption loop data before compressing. 
Store seconds in only 5 bytes which is enough for 400 years, leaving more room for random data.
 2011-03-15 14:41:47 +11:00
Con Kolivas 6a903eff8d Convert the usecs field to a dedicated salt one which has 6 random bytes and 2 encoded loops bytes. 2011-03-15 13:14:27 +11:00
ckolivas e26d0d1381 Clear the temporary infile where possible as well when we have falen back to it. 2011-03-15 11:27:07 +11:00
ckolivas 65a681a254 Relative offset is not required in tmp inbuf, it can be safely zeroed. 2011-03-15 11:21:26 +11:00
ckolivas fca5d4232c Refuse to perform file info from STDIN. 2011-03-15 09:56:45 +11:00
Con Kolivas 8a83741c32 Clear tmpinbuf between chunks. 2011-03-14 22:03:13 +11:00
Con Kolivas c832e80085 More infrastructure to read from temporary buffers on stdin decompression. 2011-03-14 21:19:57 +11:00
Con Kolivas 36e09f206e Begin massive read changes to support using temporary file for STDIN. 2011-03-14 20:22:45 +11:00
Con Kolivas 91b8382214 Read magic specially when decompressing from STDIN. 2011-03-14 18:16:14 +11:00
Con Kolivas d56c826725 Add fd_in field to struct rzip_control. 2011-03-14 14:58:41 +11:00
Con Kolivas 684959efed Add fields for temporary input buffer and clamp memory accordingly in preparation. 2011-03-14 14:47:26 +11:00
Con Kolivas 5f7a03932b Calculate the total expected size progressively and show it when it's not known. 2011-03-14 13:32:36 +11:00
Con Kolivas dc360b52dc Update message when dumping buffer and make it maxverbose only. 2011-03-14 12:54:40 +11:00
Con Kolivas 9e772d3140 Make ALL decompression use temporary in-ram buffer whenever possible. 2011-03-14 12:48:40 +11:00
Con Kolivas aeefba2190 Allocate slightly more so we can cope when the buffer overflows and fall back to a real temporary file. 2011-03-14 11:37:56 +11:00
Con Kolivas 19ef7298c8 Cast fstat values to i64 to prevent 32 bit overflows. 2011-03-14 10:21:10 +11:00
Con Kolivas e138fa77ff Use temporary files for now with TEST_ONLY mode. 2011-03-14 10:19:53 +11:00
Con Kolivas 4a6fa7602f Begin decompressing to stdout via temporary buffer by creating a read/write wrapper. 2011-03-14 10:07:51 +11:00
Con Kolivas e0a0e6b277 Whitespace fix. 2011-03-13 18:13:46 +11:00
Con Kolivas fe0416be9d Fix whitespace indentation. 2011-03-13 18:12:05 +11:00
Con Kolivas 8756fe91e2 Enable decompression when file has been chunked stdout and display progress only when expected size is known. 2011-03-13 17:52:23 +11:00
Con Kolivas a023420cdc Make get_filefinfo read over whole file to get uncompressed size for when it's not known due to being a stdout chunked file. 
Don't display microseconds in information as it will be removed.
 2011-03-13 17:31:30 +11:00
Con Kolivas 6ac74aa9f0 Create a flag to know when the temporary output buffer is in use, in preparation for when we use it on decompression. 2011-03-13 08:34:06 +11:00
Con Kolivas 2f87f62696 Make the tmp out buf slightly larger to account for incompressible data, and check for buffer overflows. 2011-03-13 08:16:46 +11:00
Con Kolivas 823a51cc74 Move const one_g to correct place. 2011-03-12 22:50:40 +11:00
Con Kolivas d067a6ea9e Implement the real workings of writing to a temporary buffer before flushing to stdout. 2011-03-12 22:46:57 +11:00
Con Kolivas 1397c0f832 Create custom "loop count" system to determine how many times to hash a password when encrypting based on the datestamp. 
This data will be stored as a 2 byte entry in the header in the future (b1 and b2).
 2011-03-12 20:31:56 +11:00
Con Kolivas 7fbec0a783 Prepare to write compressed output by flushing stdout after each chunk is compressed. 2011-03-12 19:56:08 +11:00
Con Kolivas c75a50f723 Being modifying write_1g function to be able to write to a temporary buffer instead of straight to fd_out. 
Split out make_magic to be able to write magic wherever we want later.
 2011-03-12 14:13:28 +11:00
Con Kolivas 885c6b327f Add storage time display if it exists in maxverbose info. 2011-03-12 11:55:15 +11:00
Con Kolivas 6642955375 Update magic header info. It turns out I can't add. 
Fix fileinfo to be able to read version 0.6x files.
 2011-03-12 11:40:51 +11:00
Con Kolivas fe68b9a3f7 Institute writing and reading of 0.6 file format for compress/decompress. 2011-03-12 11:17:11 +11:00
Con Kolivas d87df4f44e Store the file size as zero when the magic header will be written before the size is known. 2011-03-11 23:45:22 +11:00
Con Kolivas a10d423596 Write/read new magic header and fix version number in configure.ac 2011-03-11 23:29:56 +11:00
Con Kolivas 9bd7468465 Fix fileinfo output for versions < 0.5. 2011-03-11 21:46:23 +11:00
Con Kolivas 64ca85120c Add chunk_byte reading to information output. 2011-03-11 21:26:42 +11:00
Con Kolivas e9eee5656b add-required-includes-and-rebase-against-master 2011-03-09 08:36:55 +11:00
Con Kolivas 1511c27aad header-mangling-part-2-move-all-function-prototypes 2011-03-09 08:34:44 +11:00
Con Kolivas f6f0a25ef6 rebase-of-function-split-and-control-additions-to-fu 2011-03-09 08:32:14 +11:00