Commit graph

359 commits

Author SHA1 Message Date
Con Kolivas a7468ce6e4 Fail if block to encrypt ends up being less than one full block for now, and tidy up code. 2011-03-16 23:13:09 +11:00
Con Kolivas c41cfe9e83 Some decompression code needs more room so simply allocate u_len for s_buf. 2011-03-16 21:48:21 +11:00
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 f758773cd0 Fix one minor leak. 2011-03-16 13:29:47 +11:00
Con Kolivas 57944b1d5c Zero, unlock and free ram more strictly. 2011-03-16 12:38:10 +11:00
Con Kolivas b302e6b9ad Better make length a long long int in aes_crypt_cbc just in case. 2011-03-16 12:11:22 +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 bedea4dbec Consolidate cbc padding into a macro. 2011-03-16 10:17:48 +11:00
Con Kolivas ddcc45ebf0 Revert "aes_crypt_cbc always returns zero so ignore its return value."
This reverts commit 4314970b0d.

Oops, it can return invalid length.
2011-03-16 10:00:20 +11:00
Con Kolivas 2d2a9bc1e9 We're freeing the wrong buffer by mistake should decompression fail. 2011-03-16 09:50:30 +11:00
Con Kolivas 4314970b0d aes_crypt_cbc always returns zero so ignore its return value. 2011-03-16 08:39:05 +11:00
Con Kolivas 519123966a total_read field is no longer used. 2011-03-16 08:32:16 +11:00
Con Kolivas e1af8fb0c0 Remove unused functions from aes.c and sha4.c 2011-03-16 00:51:28 +11:00
Con Kolivas 5da0633893 aes_crypt_cbc will allow you to work on the same buffer, so don't bother allocating a separate buffer.
Allocate slightly more on the buffer that might be used for encryption rather than reallocing.
2011-03-16 00:46:39 +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 bc86829763 Modify aes and sha from polar to build into lrzip. 2011-03-15 20:22:26 +11:00
Con Kolivas ff4b8303a7 Import aes and sha2 libraries from polarssl code. 2011-03-15 20:07:15 +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
Con Kolivas 0ffa041f36 Add function to get a stream of random numbers into a buffer from /dev/urandom if possible, and falling back to random() if not. 2011-03-15 12:56:23 +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 cb1f630fe0 Tidy. 2011-03-15 10:41:17 +11:00
ckolivas 091909b552 Refuse to compress a file smaller than a minimum size. 2011-03-15 10:40:14 +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 3a8c0b6689 Remove seeks that aren't required and don't work on tmp input buffers.
Clean up open_stream_in.
2011-03-14 21:51:27 +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 00be150cfb Add flag tests for TMP_INBUF. 2011-03-14 14:56:59 +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 27d7c2a031 Tidy. 2011-03-14 12:23:12 +11:00
Con Kolivas 0fe3213a47 Write to physical files if we cannot fit the decompression in ram. 2011-03-14 12:15:54 +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 37009e2ac5 Make sure to read on an fd if that's what we're supposed to be doing. 2011-03-14 11:25:04 +11:00
Con Kolivas b644240152 write_1g always uses control->fd_out so don't pass fd to it. 2011-03-14 11:15:35 +11:00
Con Kolivas 7eabb5e7de Check seek hasn't made the pseudo file longer. 2011-03-14 11:12:12 +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