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* Change the default PKCS #8 PBKDF runtime from 200 to 300 milliseconds.lloyd2013-04-041-1/+1
| | | | | | | Round PBKDF1 and PBKDF2 time-based iterations to multiples of 10000 instead of 8192. Update the password hashing docs a bit.
* Add new PBKDF interface that takes a std::chrono::milliseconds andlloyd2012-05-312-14/+34
| | | | | | | | | | | | | | | | | | | | 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::vectorlloyd2012-05-181-1/+1
| | | | | | 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.
* Use output_length() instead of OUTPUT_LENGTH pseudo-propertylloyd2010-10-131-1/+1
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* s/u32bit/size_t/ in pbkdflloyd2010-10-122-8/+8
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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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* Rename S2K to PBKDF, because that is by far the most common name - S2Klloyd2010-07-093-0/+104
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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