Add a define WOLFSSL_CHECK_MEM_ZERO to turn on code that checks that
memory that must be zeroized before going out of use is zero.
Everytime sensitive data is put into a allocated buffer or stack buffer;
the address, its length and a name is stored to be checked later.
Where the stack buffer is about to go out of use, a call is added to
check that the required parts are zero.
wc_MemZero_Add() adds an address with length and name to a table of
addressed to be checked later.
wc_MemZero_Check() checks that the memory associated with the address is
zeroized where required.
mp_memzero_add() adds mp_int's data pointer with length and name to
table.
mp_memzero_check() checks that the data pointer is zeroized where
required.
Freeing memory will check the address. The length was prepended on
allocation.
Realloction was changed for WOLFSSL_CHECK_MEM_ZERO to perform an
allocate, check, copy, free.
GCM: make borrow constant time.
AES-GCM decrypt: compare at end and constant time.
Random: array_add touchs all elements every time.
RSA-OAEP: look for padding byte in constant time (look at every byte in
array).
SP
- reduce conditional use (make them bit ops)
- Fix point adds to not use double when adding infinity to infinity
- Implement signed div as __divi3 is not constant time.
- Move check sof input variables to API.
1. Add configure option to enable AMD's RDSEED.
2. Add seed parameters when building specifically for AMD using RDSEED.
3. Update the wolfCrypt test to play nice with the larger seed size.
1. When the seed callback is enabled, allow wc_GenerateSeed() to be used
as a default callback.
2. Modify all the tests and examples to use the default seed callback if
the seed callback is enabled.
* Not all STM32 RTCs support subseconds in the time struct, so this is
now ifdef'd using the only obvious define which exists when subseconds
exist.
* Let wc_GenerateSeed detect STM32's without RNG correctly.
* wolfCrypt test was attempting to use variables that don't exist when
both WOLFSSL_SMALL_STACK and WC_NO_RNG is defined.
Sean Parkinson
David Garske
Tesfa Mael
Chris Conlon
JacobBarthelmeh
Daniel Pouzzner
Kaleb Himes
gojimmypi
John Safranek
TakayukiMatsuo
Marco Oliverio
Daniele Lacamera
Juliusz Sosinowicz
Lealem Amedie
Hideki Miyazaki
Andrew Hutchings
Ethan
Eric Blankenhorn
Elms