98683bf71c
SP int: read_unsigned_bin and BIG_ENDIAN
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When unaligned access of sp_int_digit pointer causes segfault, define:
WOLFSSL_SP_INT_DIGIT_ALIGN
2021-03-08 15:17:12 +10:00
8428823881
Merge pull request #3840 from SparkiDev/mp_neg_fixes
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MP: fixes for negative
2021-03-05 12:08:45 -08:00
046b279ae2
MP: fixes for negative
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sp_int.c:
- sp_addmod_ct(), sp_submod_ct(), sp_gcd() and sp_lcm() only support
positive numbers: updated comments.
- sp_mod(0, neg): fix to not add 0 and neg.
- sp_div(): set sign on rem when a is greater than d but same bit length
and fix sign setting on result when absolute values equal or
close.
- Modular exponentation functions: compare absolute values when
determining whether base needs to be reduced.
- Fix calculation of hex string when negative: add -ve nibble before
checking for need of extra 0.
- Fix size allocation in sp_mod when WOLFSSL_SP_INT_NEGATIVE defined
tfm.c:
- fp_mod(0, neg): fix to not add 0 and neg.
- fp_isone(): fixed to check for negative
- fp_add_d(): fix small stack version to support negative numbers
integer.c:
- mp_isone(): fixed to check for negative
2021-03-05 09:29:46 +10:00
16f39b4e77
Fix _sp_add_d err
2021-03-04 14:40:14 -08:00
6725a4f5d2
Return error code from sp_cond_swap_ct
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ZD 11824
2021-03-03 20:03:10 +01:00
dbc4c51a4e
Merge pull request #3815 from SparkiDev/sp_math_keygen
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SP int: get keygen working with SP math again
2021-02-25 16:00:27 -08:00
d805a5c681
SP int: get keygen working with SP math again
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./configure --enable-sp --enable-sp-math --enable-keygen
2021-02-25 10:01:27 +10:00
982ba6c1e0
Math: GCD(0,0) is undefined and LCM(0,*) is undefined.
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All integers divide 0 so there is no greatest common divisor.
0 is not in the set of numbers for LCM.
2021-02-25 09:29:21 +10:00
244accece1
Merge pull request #3799 from SparkiDev/sp_gcd_protect
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SP int: fix guard around sp_gcm and sp_lcm
2021-02-23 11:53:25 -08:00
d2f9f4c4ce
SP int: fix guard around sp_gcm and sp_lcm
2021-02-23 10:21:32 +10:00
243c3ceacc
Fix build err
2021-02-22 13:36:21 -08:00
c62b48f7d0
Fixes for building with RSA public or verify only. Fixes issue with reserved "div" keyword as variable name. ZD11585
2021-02-18 07:47:00 -08:00
917205442b
Merge pull request #3757 from SparkiDev/sp_smallstack_fixes
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sp_lcm small stack: fix size of temporary
2021-02-15 12:25:13 -08:00
e4f8545e36
SP math all: sp_exch fixed up
2021-02-15 10:29:45 +10:00
e187a74b1c
sp_lcm small stack: fix size of temporary
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Temporary sp_int needs to be allocated to be 1 digit larger than a or b
for the div operation.
Change sp_div to check sizes of r and rem when passed in.
Fix sp_invmod, sp_gcm, sp_submod to use temporary sp_int sizes that work
with calls to sp_div().
2021-02-15 09:48:18 +10:00
b330196c28
SP int: Rework allocation of temporaries
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Allocate only as much is as needed.
Use macros to simplify code.
Don't use an sp_int if you can use an array of 'sp_int_digit's.
2021-02-11 10:34:40 +10:00
acdc267104
Merge pull request #3718 from SparkiDev/sp_int_fast_nct
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SP int: allow faster NCT exptmod to be compiled in
2021-02-10 16:14:39 -08:00
6983aa9331
Merge pull request #3700 from SparkiDev/sp_math_lshb
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SP math lshb: check space for result
2021-02-10 16:01:27 -08:00
47b2e8342b
Merge pull request #3698 from SparkiDev/sp_math_no_asm_fix
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SP math: fix one word Montgomery Reduction for non-asm
2021-02-09 16:04:38 -08:00
27475291b1
Merge pull request #3733 from SparkiDev/sp_int_mont_red_size
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SP int: mont_red - check size of a relative to m
2021-02-09 16:00:24 -08:00
ae3706d5e5
Merge pull request #3734 from SparkiDev/sp_int_8_bit
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SP int: fixes for 8-bit digits
2021-02-09 15:59:26 -08:00
2f47934184
Merge pull request #3735 from SparkiDev/sp_int_32_bit
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SP int SP_WORD_SIZE=32: cast down explicitly
2021-02-09 15:56:49 -08:00
fc30f379ee
Merge pull request #3736 from SparkiDev/sp_int_neg_zero
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SP int neg: fix handling of negative zero and mp_cond_copy
2021-02-09 15:48:21 -08:00
ca3c5bf6c4
SP math lshb: check space for result
2021-02-10 08:58:58 +10:00
9792e062c3
SP int: allow faster NCT exptmod to be compiled in
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For small builds, this may be needed to get the right performance.
2021-02-10 08:51:32 +10:00
47d5f6f624
Merge pull request #3714 from SparkiDev/sp_int_rsavfy
2021-02-09 07:28:40 -08:00
539ef512fc
SP int neg: fix handling of negative zero and mp_cond_copy
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mp_cond_copy: copy sign when available.
Check for zero and ensure sign is MP_ZPOS.
2021-02-09 11:03:06 +10:00
763f388471
SP int: get rsavfy and rsapub working again
2021-02-09 09:58:23 +10:00
c3cc36c55f
SP int SP_WORD_SIZE=32: cast down explicitly
2021-02-08 13:20:12 +10:00
7986b37aa5
SP int: fixes for 8-bit digits
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Fix mask type in mp_cond_copy to be at least 16 bits to handle 'used'
being larger than 8-bit but mp_digit being 8-bit.
When large numbers are used with 8-bit words, mul/sqr partial sums will
overflow a word. Fix implementations to handle this.
2021-02-08 12:24:28 +10:00
aefddaf2b8
SP int: mont_red - check size of a relative to m
2021-02-08 10:07:15 +10:00
358dbd5090
_sp_exptmod_base_2: Break out of loops on error
2021-02-08 00:09:29 +01:00
bc707d67c3
SP math: Better error propagation
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ZD 11650
2021-02-06 09:09:41 +01:00
0ccb0d5fce
SP math: fix one word Montgomery Reduction for non-asm
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Set the word size for x86.
2021-01-28 09:54:58 +10:00
4f0ed55232
SP math all: fix 1 word Montgomery Reduce
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May have 3 words in partial result before shifting down.
2021-01-25 10:19:27 +10:00
22e6d52b7b
Merge pull request #3667 from SparkiDev/sp_fixes_4
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SP int: fix _sp_mul_d inclusion checks
2021-01-21 15:49:03 -08:00
e3182ff06e
SP int: fix _sp_mul_d inclusion checks
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configuration: --disable-asn --disable-filesystem --disable-shared --enable-cryptonly --enable-sp=smallrsa2048 --enable-sp-math --disable-dh --disable-ecc --disable-sha224 --enable-rsavfy --enable-rsapss
2021-01-20 12:38:10 +10:00
523119289b
SP math all: Fixes for PPC64 compiler
2021-01-19 21:30:36 +10:00
949af909bf
SP int: make sp_copy more available
2021-01-19 11:01:00 +10:00
5b7e6ccc14
Merge pull request #3613 from SparkiDev/sp_rand_prime_len
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SP rand_prime: fix length check
2021-01-18 15:23:15 -08:00
267b00e0a2
Merge pull request #3620 from haydenroche5/zd11434
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Clamp the normalization value at the end of sp_mont_norm.
2021-01-18 15:21:03 -08:00
87a0ee5ef4
Merge pull request #3622 from SparkiDev/sp_int_fixes_2
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SP math all: doco fix and don't assign 0 to o
2021-01-18 15:19:06 -08:00
d514cc31b3
Merge pull request #3631 from SparkiDev/rsa_vfy_only_sp_fixes
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RSA: verify only build fixes
2021-01-18 13:38:52 -08:00
f8013580df
sp_int.c: fix 4 instances of "Value stored to 'o' is never read" found by LLVM9 scan-build.
2021-01-12 15:01:28 -06:00
fb82114866
sp_int.c: pay attention to the return value from sp_copy(), for general hygiene and to eliminate an inlining-related warning in sp_todecimal().
2021-01-12 14:58:29 -06:00
a3cc4110b0
Clamp the normalization value at the end of sp_mont_norm.
2021-01-11 09:59:11 -06:00
cd0670cbd7
RSA: verify only build fixes
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configuration: --disable-ecc --disable-dh --disable-aes --disable-aesgcm
--disable-sha512 --disable-sha384 --disable-sha --disable-poly1305
--disable-chacha --disable-md5 --disable-sha3 --enable-cryptonly
--disable-inline --enable-rsavfy --disable-asn --disable-oaep
--disable-rng --disable-filesystem --enable-sp=rsa2048 --enable-sp-math
Fixes to make code build again.
2021-01-06 11:58:15 +10:00
1b94309a6c
SP math all: doco fix and don't assign 0 to o
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o is not used after that point so no need to zero it.
2021-01-05 10:40:34 +10:00
01c27068c1
Correct SP x->used with sp_clamp()
2021-01-03 20:08:06 -08:00
40ab08be45
SP rand_prime: fix length check
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-ve length indicates to use a BBS prime (last two bits set)
2021-01-04 12:31:59 +10:00
Sean Parkinson
toddouska
Tesfa Mael
Guido Vranken
David Garske
Daniel Pouzzner
Hayden Roche