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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.
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Also part of Algo_Registry and not needed after #668
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Rarely expected and often causes performance problems, especially for private keys.
Instead applications should call check_key explicitly to validate keys when
necessary.
Note this removal doesn't apply to tests like ECDH on-the-curve tests, where a check
on the public key is required for security of our own key.
Updates most APIs to remove RNG calls, where they are no longer required. Exception
is PKCS8 interface, pending further work there (see GH #685) it just ignores the RNG
argument now.
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Verification is deterministic and public, so really no RNG is ever needed.
Change provider handling - accepts "base", "openssl", or empty, otherwise
throws a Provider_Not_Found exception.
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Instead the key types exposes operations like `create_encryption_op`
which will return the relevant operation if the algorithm supports it.
Changes pubkey.h interface, now RNG is passed at init time.
Blinder previous created its own RNG, now it takes it from app.
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Previously RSA and ElGamal stripped off leading zeros which were then
assumed by the padding decoders. Instead have them produce ciphertexts
with leading zeros. Changes EME_Raw to strip leading zeros to match
existing behavior.
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Specifically a named one for integer factorization (despite using same
formula as DL calc) which incorporates the k value from RFC 3766. Also
adds dl_exponent_size which returns the exponent size, this one ignores
k thus using a ~10 bit larger exponent than strictly necessary.
Adding in k downgrades 1024 bit RSA to exactly 80 bits, which is probably
about right.
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op to use a padding scheme outside of our knowledge or control, for
instance an OpenSSL RSA op which uses OpenSSL's padding code. Similar
change for key agreement and KDFs for the same reason.
Add an EME_Raw type; previously this operation was implicit in the
code in pubkey.cpp
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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).
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Remove global PRNG.
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Update license header line to specify the terms and refer to the file,
neither of which it included before.
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