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* More include header cleanupsJack Lloyd2017-09-211-0/+1
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* Avoid use of deprecated function in (deprecated) Serialized_RNG constructorJack Lloyd2017-02-191-1/+10
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* Change meaning of get_processor_timestampJack Lloyd2017-01-271-1/+1
| | | | | | | | | | | Now let it return 0 if we have no hardware timestamp, and add OS::get_high_resolution_clock for best available clock. This is mainly because it's confusing for get_processor_timestamp to return something that is not a processor timestamp and because it simplifies adding cycles/byte output if we know that something is or is not a cycle counter. Also adds Windows SEH version of run_cpu_instruction_probe. Untested, uncompiled.
* Convert to using standard uintN_t integer typesJack Lloyd2016-12-181-5/+5
| | | | | | Renames a couple of functions for somewhat better name consistency, eg make_u32bit becomes make_uint32. The old typedefs remain for now since probably lots of application code uses them.
* Abstract out mutex type. Make threads optional.Jack Lloyd2016-10-121-0/+2
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* RNG changes (GH #593)Jack Lloyd2016-08-241-111/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change reseed interval logic to count calls to `randomize` rather than bytes, to match SP 800-90A Changes RNG reseeding API: there is no implicit reference to the global entropy sources within the RNGs anymore. The entropy sources must be supplied with the API call. Adds support for reseding directly from another RNG (such as a system or hardware RNG). Stateful_RNG keeps optional references to both an RNG and a set of entropy sources. During a reseed, both sources are used if set. These can be provided to HMAC_DRBG constructor. For HMAC_DRBG, SP800-90A requires we output no more than 2**16 bytes per DRBG request. We treat requests longer than that as if the caller had instead made several sequential maximum-length requests. This means it is possible for one or more reseeds to trigger even in the course of generating a single (long) output (generate a 256-bit key and use ChaCha or HKDF if this is a problem). Adds RNG::randomize_with_ts_input which takes timestamps and uses them as the additional_data DRBG field. Stateful_RNG overrides this to also include the process ID and the reseed counter. AutoSeeded_RNG's `randomize` uses this. Officially deprecates RNG::make_rng and the Serialized_RNG construtor which creates an AutoSeeded_RNG. With these removed, it would be possible to perform a build with no AutoSeeded_RNG/HMAC_DRBG at all (eg, for applications which only use the system RNG). Tests courtesy @cordney in GH PRs #598 and #600
* Address some review comments from @cordneyJack Lloyd2016-07-171-4/+4
| | | | | | | | | Use consistent naming for the max output before reseed parameter. The constant (default) value is renamed to BOTAN_RNG_DEFAULT_MAX_OUTPUT_BEFORE_RESEED, since without the DEFAULT_ it reads like a compile time maximum instead. Use uint8_t instead of byte.
* Move poll logic to Entropy_SourcesJack Lloyd2016-07-171-15/+1
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* Add Stateful_RNGJack Lloyd2016-07-171-24/+35
| | | | | | | | | | | | | | Handles fork checking for HMAC_RNG and HMAC_DRBG AutoSeeded_RNG change - switch to HMAC_DRBG as default. Start removing the io buffer from entropy poller. Update default RNG poll bits to 256. Fix McEliece test, was using wrong RNG API. Update docs.
* Make the DRBG hash selectable in build.h with BOTAN_AUTO_RNG_DRBG_HASH_FUNCTIONJack Lloyd2016-07-171-1/+1
| | | | Add some missing overrides
* Switch to HMAC_DRBG for all RNG generation.Jack Lloyd2016-07-171-9/+114
| | | | | | | | Add support and tests for additional_data param to HMAC_DRBG Add Stateful_RNG class which has fork detection and periodic reseeding. AutoSeeded_RNG passes the current pid and time as additional_data
* New reseed_with_sources call on RNGsJack Lloyd2015-11-241-0/+15
| | | | | | | | | | | | | Provides an easier way for an application to configure a list of entropy sources they'd like to use, or add a custom entropy source to their seeding. Exposes some toggles for the global/default entropy sources to build.h Adds basic entropy tests which runs the polls and does sanity checking on the results, including compression tests if available. These are less useful for the CSPRNG outputs but a good check for the ones producing plain ASCII like the /proc reader.
* Remove use of lookup.h in favor of new T::create API.Jack Lloyd2015-09-211-3/+5
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* Typolloyd2015-03-061-1/+1
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* Hide Algorithm_Factory and use the functions in lookup.h internally.lloyd2015-03-041-5/+4
| | | | | | Fix two memory leaks (in TLS and modes) caused by calling get_foo and then cloning the result before saving it (leaking the original object), a holdover from the conversion between construction techniques in 1.11.14
* Remove algo factory, engines, global RNG, global state, etc.lloyd2015-02-041-1/+1
| | | | | | | | | | | | | | | Convert all uses of Algorithm_Factory and the engines to using Algo_Registry The shared pool of entropy sources remains but is moved to EntropySource. With that and few remaining initializations (default OIDs and aliases) moved elsewhere, the global state is empty and init and shutdown are no-ops. Remove almost all of the headers and code for handling the global state, except LibraryInitializer which remains as a compatability stub. Update seeding for blinding so only one hacky almost-global RNG instance needs to be setup instead of across all pubkey uses (it uses either the system RNG or an AutoSeeded_RNG if the system RNG is not available).
* Convert PK operations to using Algo_Registry instead of Engine.lloyd2015-02-031-13/+5
| | | | Remove global PRNG.
* Ensure all files have copyright and license info.lloyd2015-01-101-1/+1
| | | | | Update license header line to specify the terms and refer to the file, neither of which it included before.
* Move lib into srclloyd2014-01-101-0/+34
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