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* Add new helper zap which zeros a vector, clears it, and then callslloyd2012-11-291-2/+2
| | | | shrink_to_fit to actually deallocate memory.
* Add deleted copy constructors/assignment operators where appropriate.lloyd2012-07-101-0/+3
| | | | | Replace C++98 style private copy constructors/assignment ops with ones annotated with delete.
* For block and stream ciphers, don't set the size of the key vectorslloyd2012-05-251-2/+2
| | | | | | | | | | | until we are actually setting a key. This avoids the problem of prototype objects consuming not just memory but the precious few bytes of mlock'able memory that we're given by Linux. Use clear_mem instead of a loop in BigInt::mask_bits If OS2ECP encounters an invalid format type, include what type it was in the exception message.
* Fairly huge update that replaces the old secmem types with std::vectorlloyd2012-05-182-3/+3
| | | | | | using a custom allocator. Currently our allocator just does new/delete with a memset before deletion, and the mmap and mlock allocators have been removed.
* Remove all uses of MemoryRegion::copy outside of internal uses inlloyd2012-05-181-2/+2
| | | | secmem.h. Mostly replaced by assign or copy_mem.
* propagate from branch 'net.randombit.botan' (head ↵lloyd2010-11-041-1/+1
|\ | | | | | | | | | | 303b2518a80553214b1e5ab4d9b96ef54629cbc7) to branch 'net.randombit.botan.c++0x' (head d734eefabe4816be4dd3e3e6e7bb13b7ab5be148)
| * propagate from branch 'net.randombit.botan' (head ↵lloyd2010-10-132-11/+13
| |\ | | | | | | | | | | | | | | | 6581b789d58717bc6acee5c6a248e2d44c636e40) to branch 'net.randombit.botan.c++0x' (head 227a989ae94da8f4379ea4b9b0fc0ee8dbdde0c7)
| * \ propagate from branch 'net.randombit.botan' (head ↵lloyd2010-10-131-1/+1
| |\ \ | | | | | | | | | | | | | | | | | | | | 2898d79f992f27a328a3e41d34b46eb1052da0de) to branch 'net.randombit.botan.c++0x' (head 6cba76268fd69a73195760c021b7f881b8a6552c)
| | * \ propagate from branch 'net.randombit.botan' (head ↵lloyd2010-06-171-3/+16
| | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | 294e2082ce9231d6165276e2f2a4153a0116aca3) to branch 'net.randombit.botan.c++0x' (head 0b695fad10f924601e07b009fcd781191fafcb28)
| | * \ \ propagate from branch 'net.randombit.botan' (head ↵lloyd2010-01-211-1/+1
| | |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 12382647ef0a28fcb11c824c77b670cc88a4f721) to branch 'net.randombit.botan.c++0x' (head b586a3286d2c4d547ad3add5af9df1455bf4b87b)
| | | * \ \ propagate from branch 'net.randombit.botan' (head ↵lloyd2009-12-161-1/+1
| | | |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 744dccf92270cf16b80b50ee2759424c9866b256) to branch 'net.randombit.botan.c++0x' (head 2aa1acac1d05e8ea9991fe39015b1db9abc3b24e)
| | | * | | | Remove to_string, replacing with std::to_stringlloyd2009-11-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to_u32bit to use the new C++0x library func stoul instead of hand-written code.
* | | | | | | Eliminate the constant size_t values in SymmetricAlgorithm that givelloyd2010-10-282-1/+5
| |_|_|_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the parameters of the key length. Instead define a new function which returns a simple object which contains this information. This definitely breaks backwards compatability, though only with code that directly manipulates low level objects like BlockCipher*s directly, which is probably relatively rare. Also remove some deprecated accessor functions from lookup.h. It turns out block_size_of and output_size_of are being used in the TLS code; I need to remove them from there before I can delete these entirely. Really that didn't make much sense, because they assumed all implementations of a particular algorithm will have the same specifications, which is definitely not necessarily true, especially WRT key length. It is much safer (and probably simpler) to first retrieve an instance of the actual object you are going to use and then ask it directly.
* | | | | | Add a new subclass for BlockCipher BlockCipher_Fixed_Block_Size, whichlloyd2010-10-132-11/+13
|/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sets the block size statically and also creates an enum with the size. Use the enum instead of calling block_size() where possible, since that uses two virtual function calls per block which is quite unfortunate. The real advantages here as compared to the previous version which kept the block size as a per-object u32bit: - The compiler can inline the constant as an immediate operand (previously it would load the value via an indirection on this) - Removes 32 bits per object overhead (except in cases with actually variable block sizes, which are very few and rarely used)
* | | | | s/BLOCK_SIZE/block_size()/lloyd2010-10-131-8/+8
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* | | | | Use output_length() instead of OUTPUT_LENGTH pseudo-propertylloyd2010-10-131-3/+3
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* | | | | Use size_t rather than u32bit in SymmetricAlgorithmlloyd2010-10-132-2/+2
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* | | | | Use size_t rather than u32bit for the blocks argument of encrypt_nlloyd2010-10-122-10/+10
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* | | | | First set of changes for avoiding use implicit vector->pointer conversionslloyd2010-09-131-6/+8
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* | | | | Big, invasive but mostly automated change, with a further attempt atlloyd2010-09-071-2/+2
| |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | harmonising MemoryRegion with std::vector: The MemoryRegion::clear() function would zeroise the buffer, but keep the memory allocated and the size unchanged. This is very different from STL's clear(), which is basically the equivalent to what is called destroy() in MemoryRegion. So to be able to replace MemoryRegion with a std::vector, we have to rename destroy() to clear() and we have to expose the current functionality of clear() in some other way, since vector doesn't support this operation. Do so by adding a global function named zeroise() which takes a MemoryRegion which is zeroed. Remove clear() to ensure all callers are updated.
* | | | More Doxygen updateslloyd2010-06-151-1/+9
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* | | | More Doxygen fixeslloyd2010-06-151-2/+7
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* | / Clean up exceptions. Remove some unused ones like Config_Error. Makelloyd2010-01-051-1/+2
| |/ |/| | | | | | | | | | | Invalid_Argument just a typedef for std::invalid_argument. Make Botan::Exception a typedef for std::runtime_error. Make Memory_Exhaustion a public exception, and use it in other places where memory allocations can fail.
* | Make many more headers internal-only.lloyd2009-12-161-1/+1
|/ | | | | | | | | | | | | Fixes for the amalgamation generator for internal headers. Remove BOTAN_DLL exporting macros from all internal-only headers; the classes/functions there don't need to be exported, and avoiding the PIC/GOT indirection can be a big win. Add missing BOTAN_DLLs where necessary, mostly gfpmath and cvc For GCC, use -fvisibility=hidden and set BOTAN_DLL to the visibility __attribute__ to export those classes/functions.
* Rename/remove some secmem member variables for better matching with STLlloyd2009-11-171-2/+2
| | | | | | | | containers (specifically vector). Rename is_empty to empty Remove has_items Rename create to resize
* 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.
* Remove all exception specifications. The way these are designed in C++ islloyd2009-10-222-2/+2
| | | | | | just too fragile and not that useful. Something like Java's checked exceptions might be nice, but simply killing the process entirely if an unexpected exception is thrown is not exactly useful for something trying to be robust.
* Cleanups/random changes in the stream cipher code:lloyd2009-10-141-4/+4
| | | | | | | | | | | | | Remove encrypt, decrypt - replace by cipher() and cipher1() Remove seek() - not well supported/tested, I want to redo with a new interface once CTR and OFB modes become stream ciphers. Rename resync to set_iv() Remove StreamCipher::IV_LENGTH and add StreamCipher::valid_iv_length() to allow multiple IV lengths (as for instance Turing allows, as would Salsa20 if XSalsa20 were supported).
* Remove add blocks from block cipher info fileslloyd2009-09-291-7/+0
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* Hoist creation of buffer in Lion encrypt looplloyd2009-08-311-4/+4
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* Make encrypt_n public for all BlockCipher implementations - unlike thelloyd2009-08-111-2/+3
| | | | | | enc/dec functions it replaces, these are public interfaces. Add the first bits of a SSE2 implementation of Serpent. Currently incomplete.
* Change the BlockCipher interface to support multi-block encryption andlloyd2009-08-112-24/+36
| | | | | | | | | decryption. Currently only used for counter mode. Doesn't offer much advantage as-is (though might help slightly, in terms of cache effects), but allows for SIMD implementations to process multiple blocks in parallel when possible. Particularly thinking here of Serpent; TEA/XTEA also seem promising in this sense, as is Threefish once that is implemented as a standalone block cipher.
* Add a script that reads the output of print_deps.py and rewriteslloyd2009-07-151-0/+5
| | | | | | the info.txt files with the right module dependencies. Apply it across the codebase.
* Thomas Moschny passed along a request from the Fedora packagers which camelloyd2009-03-302-32/+36
| | | | | | | | | | | | | | | 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).
* Rename SymmetricAlgorithm::key to key_schedule to avoid many namelloyd2008-11-092-2/+2
| | | | conflicts/collisions
* Split ciphers into block and stream ciphers. Move base class headerslloyd2008-11-083-0/+163
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