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* Change the default PKCS #8 PBKDF runtime from 200 to 300 milliseconds.lloyd2013-04-042-2/+2
| | | | | | | Round PBKDF1 and PBKDF2 time-based iterations to multiples of 10000 instead of 8192. Update the password hashing docs a bit.
* Move assert.h from internal to very public (included in types.h)lloyd2013-03-131-1/+0
| | | | | | This reduces friction to writing an assert, so hopefully there will be more of them as a result. And we can use asserts in public headers now, very useful for templates.
* More Doxygen warning fixeslloyd2012-07-091-0/+3
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* Add missing headers, triggered errors under minimal buildslloyd2012-06-191-0/+1
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* Missing source file from d8021f3e5aa8812a2843d6afd27bbe56d04af734lloyd2012-06-011-0/+44
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* Add new PBKDF interface that takes a std::chrono::milliseconds andlloyd2012-05-318-149/+137
| | | | | | | | | | | | | | | | | | | | runs the KDF until at least that much time has passed, then returns the number of interations used. New parameter to the PKCS8 encryption routines which tells how long to run the PBKDF. Defaults to 200 milliseconds, which is short enough that it is unlikely to bother anyone but long enough to provide quite reasonable security against cracking attacks. On a Core i7-860, 200 ms with PBKDF2/SHA-1 runs about 180K to 220K iterations (compare with previous default of 10K). New PBE interface, remove new_params/set_key and require all inputs including the passphrase to be passed to the constructor. Drop the PGP S2K as it is pretty weird and not really useful outside of a full PGP implementation. Drop the deprecated PKCS8::encrypt_key and PKCS8::encode functions.
* Fairly huge update that replaces the old secmem types with std::vectorlloyd2012-05-183-6/+6
| | | | | | 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.
* First step towards replacing the existing containers with std::vectorlloyd2012-05-181-1/+1
| | | | | | with a custom allocator; remove the 3 argument version of MemoryRegion::copy, replacing with freestanding buffer_insert function.
* 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 ↵lloyd2010-10-132-4/+4
| |\ | | | | | | | | | | | | | | | 2898d79f992f27a328a3e41d34b46eb1052da0de) to branch 'net.randombit.botan.c++0x' (head 6cba76268fd69a73195760c021b7f881b8a6552c)
| | * Use std::to_stringlloyd2010-09-031-1/+1
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| | * propagate from branch 'net.randombit.botan' (head ↵lloyd2010-09-031-3/+3
| | |\ | | | | | | | | | | | | | | | | | | | | a29c41b4a949207b1544096c3afab668f8b5179e) to branch 'net.randombit.botan.c++0x' (head a9d0c2f805b3c20a4c648575d7256959db8329fe)
| | | * propagate from branch 'net.randombit.botan' (head ↵lloyd2010-07-091-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | 161b5c0300b72baa746f101fda1e2b4a7c71818c) to branch 'net.randombit.botan.c++0x' (head 1fc3875bb8daf4ad0e90ba66db72642203cb9984)
* | | | Mass disable copy constructors and assignment on all algos until proven ↵lloyd2010-11-041-6/+0
| | | | | | | | | | | | | | | | safe/useful
* | | | Add new top-level algorithm which provides basic functionality: namelloyd2010-11-012-12/+4
|/ / / | | | | | | | | | | | | | | | | | | | | | query, clearing, and cloning. Applies to ciphers, hashes, MACs, and PBKDFs. May extend to KDFs later as well. A single combined hierarchy in particular will make the algo_factory much simpler.
* | | Use output_length() instead of OUTPUT_LENGTH pseudo-propertylloyd2010-10-133-5/+5
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* | | s/u32bit/size_t/ in pbkdflloyd2010-10-127-31/+31
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* | | Use size_t for BufferedComputation::add_datalloyd2010-10-121-1/+1
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* | | Remove more implicit vector to pointer conversionslloyd2010-09-142-4/+5
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* | | More changes to avoid vector to pointer implicit conversionslloyd2010-09-141-2/+2
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* | | Handle the case that container size() returns something other than u32bitlloyd2010-09-141-1/+1
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* | | Anywhere where we use MemoryRegion::begin to get access to the raw pointerlloyd2010-09-131-1/+1
|/ / | | | | | | | | representation (rather than in an interator context), instead use &buf[0], which works for both MemoryRegion and std::vector
* | Turns out OpenSSL's implementation of PBKDF2 allows empty passphrases,lloyd2010-08-211-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | so for compatability with keys that were encrypted with an empty passphrase we probably want to support it as well. In PBKDF2, don't reject empty passphrases out of hand; simply call set_key and if the underlying MAC cannot use the key, throw an informative exception. This will also be more helpful in the case that someone tries using another MAC (say, CMAC) with a block cipher that only supports keys of specific sizes. In HMAC, allow zero-length keys. This is not really optimal in the sense of allowing the user to do something dumb, but a 1 byte key would be pretty dumb as well and we already allowed that. Add a test vector using an empty passphrase generated by OpenSSL
* | Correct Doxygen commentlloyd2010-08-171-3/+2
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* | Fix Doxygen comment in PBKDF2 constructorlloyd2010-08-131-2/+2
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* Rename S2K to PBKDF, because that is by far the most common name - S2Klloyd2010-07-0911-0/+406
really is only used by OpenPGP, and largely it was named S2K here because the OpenPGP S2K was implemented years before the ones in PKCS #5. We have a typedef of PBKDF to S2K, and an inlined get_s2k that calls get_pbkdf for source compatability. There doesn't seem to be any reason to have a forward for the renamed s2k.h header - to actually use a PBKDF, you'd have to either include lookup.h and call get_s2k / get_pbkdf, or else include an algorithm-specific header and use it directly. In either case, including s2k.h is neither necessary nor sufficient.
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