kdf.c: wc_PRF() - No need for previous, reuse current.
sha256.c: Transform_Sha256() - Add slow but small version for many
register implementation.
sp_int.h: Change 'used' and 'size' fields to 16-bit types when possible.
sp_int.c: Fixes for 16-bit used.
wolfssl/wolfcrypt/error-crypt.h: add WC_FIRST_E.
wolfcrypt/src/error.c: add MP error code strings.
wolfssl/error-ssl.h: add WOLFSSL_FIRST_E and WOLFSSL_LAST_E.
wolfcrypt/test/test.c: update error_test() for new error code layout, refactoring the "missing" check.
src/internal.c: use WC_FIRST_E and WC_LAST_E in wolfSSL_ERR_reason_error_string().
src/ssl.c: fix wolfSSL_ERR_GET_REASON() to identify in-range error codes using WC_FIRST_E, WC_LAST_E, WOLFSSL_FIRST_E, and WOLFSSL_LAST_E.
sp_int.h: provide for WOLFSSL_DEBUG_TRACE_ERROR_CODES, and refactor MP error codes as enums, for consistency with other error codes.
wolfcrypt/src/ecc.c: fix 2 identicalInnerCondition's.
Add mp_to_unsigned_bin_len_ct() which puts a number into a buffer with
padding in constant time.
Call mp_to_unsigned_bin_len_ct() in RSA when encoding result of
exponentiation.
tweak several #includes of settings.h to include types.h instead (all of these are for clarity, as types.h is indirectly included by later #includes), and add #include <wolfssl/wolfcrypt/types.h> where missing;
remove trailing semicolons from PRAGMA*() macro invocations as they are unneeded and can be harmful (inducing frivolous -Wdeclaration-after-statement etc.).
Add support for:
- SM2 elliptic curve and SM2 sign/verify
- SM3 digest
- SM4 cipher with modes ECB/CBC/CTR/GCM/CCM
Add APIs for SM3 and SM4.
Add SM2 sign and verify APIs.
Add support for SM3 in wc_Hash and wc_Hmac API.
Add support for SM3 and SM4 through EVP layer.
Add support for SM2-SM3 certificates. Support key ID and name hash being
with SHA-1/256 or SM3.
Add support for TLS 1.3 cipher suites: TLS-SM4-GCM-SM3, TLS-SM4-CCM-SM3
Add support for TLS 1.2 SM cipher suite: ECDHE-ECDSA-SM4-CBC-SM3
Add support for SM3 in wc_PRF_TLS.
Add SM2-SM3 certificates and keys. Generated with GmSSL-3.0.0 and
OpenSSL.
Minimize use of stack.
Make very large stack allocations dynamic memory allocations unless
WOLFSSL_SP_NO_MALLOC.
ProcessBufferTryDecode() split up into a function for each type.
ProcessBufferTryDecodeRsa() decodes the data and gets key size rather
than having or allocating an RsaKey.
Added wc_RsaPrivateKeyValidate() that only validates the encoding is an
RSA key and returns the key size in bytes.
For SP int, only create sp_ints of required size in RSA and ECC
implementation. For WOLFSSL_SMALL_STACK, memory is allocated to have
just enough bytes and size is set to maximum supported. Otherwise,
relies on dynamic stack variables.
For ECC, MAX_ECC_BITS_USE used when dynamic stack variables not
supported. Significantly reduces memory usage when RSA/DH is also built.
Add macros to sp_int.h, tfm.h and integer.h to support declaring,
allocating, initializing and freeing mp_ints.
For integer.h, mp_int is always static as size is no more than 32 bytes.
For tfm.h, WOLFSSL_SMALL_STACK has a full mp_int allocated, otherwise
the full mp_int is put on the stack.
For sp_int.h with new macros, dynamically allocate sp_int to minimal
size when WOLFSSL_SMALL_STACK, or when dynamic stack variables, declare
them to be of minimal size or otherwise declare with a fixed max.
Added mp_bitsused(), for all implementations, to get the number of bits
available based on used. Included for RSA to get the size of the
modulus.
SP int now always uses dynamic stack variables if possible rather than
for builds with WOLFSSL_SP_SMALL.
Moved code out into separate functions so that stack allocations don't
happen when not going down code path.
* Add introspection for math build.
* Raise build error if more than one multi-precision math library used.
* Fix ESP32 to support using any multi-precision math option.
* Refactor math headers to use `wolfmath.h`
* Refactor of the opaque math variable type `MATH_INT_T` used by crypto hardware (QuickAssist, SE050, ESP32 and STM32).
* Cleanups for building with `WOLFCRYPT_ONLY` and `NO_BIG_INT`.
* Stop forcing use of fast math by default for platforms in settings.h. Note: For users that still want to use fast math (tfm.c) they will need to add USE_FAST_MATH to their build settings.
Applies To:
```
WOLFSSL_ESPWROOM32
WOLFSSL_ESPWROOM32SE
MICROCHIP_PIC32
WOLFSSL_PICOTCP_DEMO
WOLFSSL_UTASKER
WOLFSSL_NRF5x
FREERTOS_TCP
WOLFSSL_TIRTOS
EBSNET
FREESCALE_COMMON
FREESCALE_KSDK_BM
WOLFSSL_DEOS
MICRIUM
WOLFSSL_SGX
```
HAVE_ECH only used by TLS 1.3 add protection around all code.
ssl->options.onlyPskDheKe only available when HAVE_SUPPORTED_CURVES.
CleanupClientTickets() defined when HAVE_SUPPORTED_CURVES.
TLSX_KeyShare_DeriveSecret only defined when HAVE_SUPPORTED_CURVES.
DecodeResponseData - initialize variable single.
New OpenSSL compatibility BN code requires mp_read_radix - turn on in
integer.c, sp_int.c when OPENSSL_EXTRA defined.
rsa.c:_CheckProbablePrime - make sure tmp1 and tmp2 are initialized
before error handling jumps to freeing them.
test_remove_hs_message uses 1024-bit DH key which is not supported when
using SP math with SP.
Makefile.am: clean .build_params file;
ecc.c: fix misplaced gat #endif in wc_ecc_shared_secret_gen_sync();
move AM_CFLAGS+=-include /.build_params to before AC_SUBST([]AM_CFLAGS);
fix new unused-label defect in wc_ecc_shared_secret_gen_sync();
fix integer.[ch] mp_exch() to return int not void (sp_exch() and TFM mp_exch() can both fail on allocations);
fix NO_INLINE ForceZero() prototype;
ecc.c: add missing if (err == MP_OKAY) in build_lut();
wolfcrypt/test/test.c: revert "rename hkdf_test to wc_hkdf_test to eliminate namespace collision", restoring unconditional static qualifier, to fix crash at return from main() on Xilinx Zynq ARM test;
ecc.c: refactor build_lut() flow control to fix uninited variable scenario found by scan-build;
WOLFCRYPT_ONLY and OPENSSL_EXTRA: fix gating to allow successful build with --enable-all-crypto, and add configure error if crypt-only and opensslall are combined.
mp_read_signed_bin, mp_signed_bin_size, mp_to_signed_bin - not
implemented anywhere. (Removed fp versions that were commented out too.)
mp_read_raw, mp_raw_size, mp_toraw - map to unimplemented mp_*_signed_*
APIs.
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
We separate out 64-bit desktop support based on the Intel check. With
the advent of the new Apple chip, ARM can also be a desktop processor.
Detect it like we do the Intel 64-bit, and treat it similarly with
respect to fast and normal math.
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.
Have a constant and non-constant time modular exponentation available in
tfm.c.
Call the non-constant time version explicitly when performing RSA public
key mod exp.
__attribute__ ((mode(TI))) does not really work on clang-cl,
linking would fail with "unresolved external symbol __udivti3",
as reported in https://bugs.llvm.org/show_bug.cgi?id=25305
Fix to use default case with 28bit digits on clang-Windows.
1. Added some new ifdef clauses to tfc and integer so that
the prime checking is available when using RSA, DSA, or DH.
A couple functions used were dependent on ECC being enabled.
1. Moved a few functions around in tfm.c and integer.c.
2. Added some new ifdef clauses to tfc and integer so that the prime checking is available when using RSA, DSA, or DH.
3. Added an internal version of function wc_DhSetKey and wc_DsaImportParamsRaw that always checks to see if the prime value is prime. Modified the original function to be a wrapper.
Made modifications to the primality testing so that the Miller-Rabin tests check against up to 40 random numbers rather than a fixed list of small primes.
--enable-sp-math to include minimal implementation of MP (only with
--enable-sp.)
Add futher functionality for ECC (conditionally compiled):
- check key
- is point on curve
- API to add and double projective points
- API to map from project to affine
- Uncompress point (including sqrt)
Some configuration options will not work with SP math - configure.ac
detects this and errors out.
Change test code to better support SP sizes only.
