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151 Commits

Author SHA1 Message Date
Daniel Pouzzner
ef1284165f wolfcrypt/src/integer.c: fix sub-byte clearing step of mp_mod_2d() to work when DIGIT_BIT != sizeof(mp_digit)*8. 2020-12-10 23:50:30 -06:00
Sean Parkinson
a075540343 Merge pull request #3552 from tmael/shiftNeg 
Check shift value
 2020-12-11 10:19:27 +10:00
Tesfa Mael
9042843e42 Fix shift and clear digits 2020-12-10 16:13:30 -08:00
Daniel Pouzzner
5286cb1a46 optimize domain check in wolfcrypt/src/integer.c and wolfcrypt/src/tfm.c. 2020-12-10 14:16:20 -06:00
Sean Parkinson
9bbef90546 MP integer: fix map string for toradix and read_radix 2020-12-07 09:12:53 +10:00
Sean Parkinson
91d23d3f5a Implement all relevant mp functions in sp_int 2020-11-19 11:58:14 +10:00
Sean Parkinson
f5561b926c rshb: handle cases of shift amount being multiple of DIGIT_BIT 
tfm.c and integer.c fixed
 2020-11-11 10:04:14 +10:00
John Safranek
d24add10f2 Nightly Test Fix 
When performing a fast_mp_montgomery_reduce(), scan-build didn't like
that the destination buffer was fully zeroed out. We were only zeroing
what was expected to be used. This zeroes only the expected to be used
section of the output buffer.
 2020-11-01 18:58:05 -08:00
Elms
86b2118550 Address some cppcheck issues 2020-10-19 11:47:53 -07:00
Sean Parkinson
f0db2c177e ECC mulmod: some curves can't do order-1 
Change implementation of timing resistant scalar multiplication to use
Joye double-add ladder.
No longer have fake operations being performed therefore can remove the
order adding operations.
Still need to check for boundary condition: order-1 wil not work with
SECP256K1 as it results in an add of order/2 and (order/2)+1 times base
point which are the negatives of each other. The sum is infinity and not
handled by maths.
Added mp_cond_swap_t - Conditionally swap in constant time.
 2020-10-13 09:55:35 +10:00
Daniel Pouzzner
453698ba27 add explanatory comments for do_div(), used when WOLFSSL_LINUXKM. 2020-09-23 18:32:16 -05:00
Daniel Pouzzner
03d5a4eadd wolfcrypt/src/integer.c: mp_div_d(): refactor another 64 bit division to use do_div() when WOLFSSL_LINUXKM. 2020-09-23 18:32:15 -05:00
Eric Blankenhorn
5d69c9f1dc Move neg check 2020-09-15 09:12:45 -05:00
Eric Blankenhorn
4688f5fa59 Handle leading zero 2020-09-11 08:39:34 -05:00
Eric Blankenhorn
78a1670334 Fix mp_radix_size off by 1 error 2020-09-10 09:58:26 -05:00
Sean Parkinson
4f44df96dc MP: integer OOB write fix 
mp_to_unsigned_bin_len() now checks length passed in is greater than or
equal length to write.
 2020-08-24 22:48:52 +10:00
Sean Parkinson
9ef9671886 ECC uses CT vers of addmod, submod and div_2_mod 
The TFM implementations of mp_submod_ct, mp_addmod_ct,
mp_div_2_mod_t are more resilient to side-channels.
 2020-08-11 16:12:10 +10:00
Martin Akman
1f8d4149a5 Merge in master 2020-07-23 21:39:18 +10:00
toddouska
ea21d56463 Merge pull request #3127 from SparkiDev/mp_sub_d 
mp_sub_d (integer.c): return error when digit is too big
 2020-07-22 16:38:37 -07:00
toddouska
61d81dd878 Merge pull request #3123 from SparkiDev/mp_rshb 
rshb check range of n
 2020-07-20 13:08:45 -07:00
Sean Parkinson
52d363390a rshb check range of n 2020-07-20 11:12:35 +10:00
Sean Parkinson
e754076c37 Change mp_leading_bit (integer.c) to not to require a copy 2020-07-15 09:20:15 +10:00
Sean Parkinson
ddad95d52c mp_sub_d (integer.c): return error when digit is too big 
Code can't handle subtracting a number (an mp_digit) larger than
DIGIT_BIT. Now returns an error rather than giving wrong result.
 2020-07-15 09:18:35 +10:00
Sean Parkinson
411aee6e05 Fixes from cppcheck 
Added PRIVATE_D version of rsa private key operation for SP
implementation for specific platforms.
WC_NO_RNG results in warnings when RNG calls don't do anything.
Added ifdef checks for variables not used otherwise.
Remove superfluous if statements like when checking ret == 0.
Change names of globals that are generic and are used locally before
global definition.
Remove definition of variable len that isn't used except as a
replacement for sz which is parameter.
Don't subtract two variables when one has just been assigned the value
of the other.
Fix shifting of signed value.
Fix parameter checking in aes.c and des3.c for platform specific code.
 2020-04-08 09:46:22 +10:00
toddouska
bcc720ef68 Merge pull request #2773 from SKlimaRA/master 
Coverity issues fixes.
 2020-03-13 10:20:45 -07:00
David Garske
75183262ad Minor typos and fixes to the MDK5 examples. 2020-02-19 12:03:14 -08:00
Stanislav Klima
bbfefd3cde Sanity check NULL dereference. 2020-02-05 16:59:20 +01:00
Martin Akman
20c0beb9e5 'WOLFSSL_USE_FLASHMEM' to store constant tables in flash memory 2020-01-31 23:43:17 +10:00
Martin Akman
14dc5fe2e3 Fixes for 16bit processors 2020-01-31 23:32:48 +10:00
Sean Parkinson
55ea2facdd Changes to clear issues raised by cppcheck 2020-01-30 14:24:32 +10:00
Chris Conlon
45c5a2d39c update copyright to 2020 2020-01-03 15:06:03 -08:00
Eric Blankenhorn
b83804cb9d Correct misspellings and typos from codespell tool 2019-12-24 12:29:33 -06:00
toddouska
feeb18600f Merge pull request #2636 from SparkiDev/mp_exptmod_fixes 
Handle more values in fp_exptmod
 2019-12-17 15:22:24 -08:00
toddouska
9fd5628148 Merge pull request #2631 from SparkiDev/mp_invmod_fix 
mp_invmod handles more inputs
 2019-12-05 16:21:33 -08:00
Sean Parkinson
c5f9a601e8 Handle more values in mp_exptmod 
Handle prime (modulus) of 0 and 1.
Handle exponent of 0.
Fix for base of 0 in fp_exptmod and hadnle base of 0 in mp_exptmod.
fp_exptmod - Don't modify X's sign during operation when passed in as negative.
 2019-12-04 09:32:08 +10:00
David Garske
7e45ae2ec6 Merge pull request #2621 from JacobBarthelmeh/SanityChecks 
sanity check on "a" input to invmod
 2019-12-02 10:57:01 -08:00
Sean Parkinson
bd7a572a8f mp_invmod handles more inputs 
Value to invert: a
Modulus: b
integer.c - normal math
  - a is one, or a mod b is one
tfm.c - fast math
  - b is -ve (error), or b is zero
  - a is zero or a mod b is zero
 2019-11-29 09:08:44 +10:00
toddouska
e1ebb39296 Merge pull request #2618 from ejohnstown/maintenance-prime 
Maintenance: Prime
 2019-11-27 14:06:23 -08:00
John Safranek
2de52c7666 Maintenance: Prime 
When returning a result from mp_prime_is_prime for normal math, the
result should be MP_YES or MP_NO, not a bare number (1 or 0).
 2019-11-26 15:44:30 -08:00
toddouska
5d41ef171c Merge pull request #2610 from ejohnstown/maintenance-DTLS 
Maintenance: DTLS
 2019-11-26 15:17:22 -08:00
Jacob Barthelmeh
7c3a4a1975 update comment to reflect new sanity check 2019-11-25 10:57:09 -07:00
Jacob Barthelmeh
316b8b0b4d add early return to normal math and WOLFSSL_VALIDATE_ECC_IMPORT to enable-all and enable-fpecc builds 2019-11-25 10:47:08 -07:00
John Safranek
3432a8a1fc Maintenance: Prime 
1. Prime test should return NO for 1. (ex function, normal math and fast
math)
2. Call mp_init() on the k value for the primality test case in the
wolfCrypt test.
 2019-11-22 13:02:59 -08:00
John Safranek
452ba5b502 Maintenance: Prime 
1. Prime test should return NO for 1. (normal math and fast math)
 2019-11-21 13:49:26 -08:00
John Safranek
ce0136e968 Maintenance: Integers 
In TFM and Integer, rshb() shouldn't try to shift a value that is 0.
This leads to using a negative offset to a pointer, but isn't used.
 2019-11-20 13:55:57 -08:00
toddouska
5de27443d0 Merge pull request #2596 from dgarske/mqx_fio_cleanup 
Support for MQX 5.0 and cleanup of the MQX includes
 2019-11-19 11:49:03 -08:00
David Garske
1542482cd5 Cleanup of the MQX file headers for STDIO. Cleanup of fio.h and nio.h includes to use wc_port.h. ZD 9453. 2019-11-18 12:14:34 -08:00
Sean Parkinson
5221c082f1 SP now has support for RSA/DH 4096-bit operations 2019-11-12 12:04:06 +10:00
Tesfa Mael
1267987c31 Review comment 2019-10-15 12:24:57 -07:00
Tesfa Mael
1a18e3bba8 Add leading zero padding for odd hex ASCII digits 2019-10-15 11:54:58 -07:00