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* Use "/*" instead of "/**" in starting comments at the begining of a file.lloyd2010-06-072-2/+2
| | | | | This caused Doxygen to think this was markup meant for it, which really caused some clutter in the namespace page.
* Include as internal/lloyd2009-12-231-1/+1
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* Full working amalgamation build, plus internal-only headers concept.lloyd2009-12-161-1/+7
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* Move most code that relies heavily on Filters into src/filters.lloyd2009-11-171-6/+0
| | | | | | Remove support for (unused) modset settings. Move tss, fpe, cryptobox, and aont to new dir constructs
* Remove the 'realname' attribute on all modules and cc/cpu/os info files.lloyd2009-10-291-2/+0
| | | | | Pretty much useless and unused, except for listing the module names in build.h and the short versions totally suffice for that.
* Thomas Moschny passed along a request from the Fedora packagers which camelloyd2009-03-302-2/+6
| | | | | | | | | | | | | | | up during the Fedora submission review, that each source file include some text about the license. One handy Perl script later and each file now has the line Distributed under the terms of the Botan license after the copyright notices. While I was in there modifying every file anyway, I also stripped out the remainder of the block comments (lots of astericks before and after the text); this is stylistic thing I picked up when I was first learning C++ but in retrospect it is not a good style as the structure makes it harder to modify comments (with the result that comments become fewer, shorter and are less likely to be updated, which are not good things).
* In the BeOS entropy poll, quit the loop early if the polling goal waslloyd2009-01-281-0/+3
| | | | achieved.
* Check in a branch with a major redesign on how entropy polling is performed.lloyd2009-01-272-34/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Combine the fast and slow polls, into a single poll() operation. Instead of being given a buffer to write output into, the EntropySource is passed an Entropy_Accumulator. This handles the RLE encoding that xor_into_buf used to do. It also contains a cached I/O buffer so entropy sources do not individually need to allocate memory for that with each poll. When data is added to the accumulator, the source specifies an estimate of the number of bits of entropy per byte, as a double. This is tracked in the accumulator. Once the estimated entropy hits a target (set by the constructor), the accumulator's member function predicate polling_goal_achieved flips to true. This signals to the PRNG that it can stop performing polling on sources, also polls that take a long time periodically check this flag and return immediately. The Win32 and BeOS entropy sources have been updated, but blindly; testing is needed. The test_es example program has been modified: now it polls twice and outputs the XOR of the two collected results. That helps show if the output is consistent across polls (not a good thing). I have noticed on the Unix entropy source, occasionally there are many 0x00 bytes in the output, which is not optimal. This also needs to be investigated. The RLE is not actually RLE anymore. It works well for non-random inputs (ASCII text, etc), but I noticed that when /dev/random output was fed into it, the output buffer would end up being RR01RR01RR01 where RR is a random byte and 00 is the byte count. The buffer sizing also needs to be examined carefully. It might be useful to choose a prime number for the size to XOR stuff into, to help ensure an even distribution of entropy across the entire buffer space. Or: feed it all into a hash function? This change should (perhaps with further modifications) help WRT the concerns Zack W raised about the RNG on the monotone-dev list.
* Limit the output size of fast polls by the BeOS, Unix, and Win32 entropylloyd2008-11-231-0/+1
| | | | pollers that grab basic statistical data to 32 bytes.
* Update BeOS entropy poller to also derive directly from EntropySourcelloyd2008-11-233-35/+46
| | | | | and use xor_into_buf. Completely untested, though it looks clean besides missing the BeOS headers+funcs if I try to compile on Linux.
* Substantially change Randpool's reseed logic. Now when a reseedlloyd2008-10-271-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | is requested, Randpool will first do a fast poll on each entropy source that has been registered. It will count these poll results towards the collected entropy count, with a maximum of 96 contributed bits of entropy per poll (only /dev/random reaches this, others measure at 50-60 bits typically), and a maximum of 256 for sum contribution of the fast polls. Then it will attempt slow polls of all devices until it thinks enough entropy has been collected (using the rather naive entropy_estimate function). It will count any slow poll for no more than 256 bits (100 or so is typical for every poll but /dev/random), and will attempt to collect at least 512 bits of (estimated/guessed) entropy. This tends to cause Randpool to use significantly more sources. Previously it was common, especially on systems with a /dev/random, for only one or a few sources to be used. This change helps assure that even if /dev/random and company are broken or compromised the RNG output remains secure (assuming at least some amount of entropy unguessable by the attacker can be collected via other sources). Also change AutoSeeded_RNG do an automatic poll/seed when it is created.
* Add BOTAN_DLL macro to public class definitions that were missing it.lloyd2008-10-091-1/+1
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* Rename all modinfo.txt files to info.txt, since they are all (none) oflloyd2008-09-291-0/+0
| | | | | them modules now. In any case there is no distinction so info.txt seems better.
* Move buf_es into module, add deps where neededlloyd2008-09-281-0/+4
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* Move all modules into src/ directorylloyd2008-09-283-0/+109
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