* 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.
* This PR resolves issues with using TLS client authentication (mutual auth) with crypto callbacks. The TLS client auth will not be sent without a private key being set. The solution is to allow setting a public key only if crypto callbacks is enabled and a devId is set.
* Fix to allow using crypto callbacks with TLS mutual authentication where a private key is not available.
* Fix for ED25519 sign when only a private key is loaded.
* Fix to enable crypto callbacks for ED25519 and Curve25519 in TLS by using the _ex init functions.
* Fix for wc_PemToDer return code where a PKCS8 header does not exist.
* Remove duplicate logs in DoCertificateVerify.
* Doxygen API updates: Added crypto callback help and updated use_PrivateKey with info about public key use.
* * Added crypto callback tests for TLS client and server with mutual auth for RSA, ECC and ED25519.
* Enhanced the API unit test TLS code to allow setting CA, cert and key.
* Revert ED25519 changes. Opt to calculate public key directly when required for signing in the TLS crypto callback test. Build configuration fixes.
* Fix to use proper devId in `ProcessBufferTryDecode`.
* Various build fixes due to changes in PR. G++ issue with `missing-field-initializers`. Unused api.c func with DTLS and session export. Duplicate `eccKeyPubFile` def.
* Added crypto callback TLS tests at WOLFSSL object level. Fix for ED25519/ED448 with client mutual auth where the private key is not set till WOLFSSL object. Fix issues with `wolfSSL_CTX_GetDevId` where devId is set on WOLFSSL object. Enable the `_id` API's for crypto callbacks.
* Proper fix for `eccKeyPubFile` name conflict. Was causing RSA test to fail (expected DER, not PEM).
Improve the generated instructions for multiplying 32 bits by 32 bits
and squaring 32 bits with 64 bit results.
Minimize loads in montgomery reduction, mul and sqr.
Pull conditional subtract into montgomery reduction assembly code.
Added unrolled square and multiply
Define WOLFSSL_SP_LARGE_CODE to use the unrolled versions.
* Remove NTRU and OQS
* Keep the DTLS serialization format backwards compatible.
* Remove n from mygetopt_long() call.
* Fix over-zealous deletion.
* Resolve problems found by @SparkiDev
smallstack refactors for wolfcrypt/src/rsa.c:wc_CheckProbablePrime_ex() and wolfcrypt/src/pwdbased.c:wc_PKCS12_PBKDF_ex();
add WARN_UNUSED_RESULT macro to types.h;
text format cleanup;
fix internal.c:LowResTimer() implementation.
refactor tls13.c:TimeNowInMilliseconds() for kernel 4.9 and 3.16 compat.
use ktime_get_coarse_real_ts64() only for kernel 5.x+. in kernel 4.x, use its older form, current_kernel_time64(), and in 3.x, use getnstimeofday().
linuxkm/module_hooks.c: fix wolfssl_init() pie code to be compatible with kernel 4.4-;
fix allocate_wolfcrypt_irq_fpu_states() return codes to all be wolfcrypt codes, and in calling code, pass up that code (suggested by dgarske peer review).
configure.ac: fix ed25519/sha512 dependency test to not misfire when ENABLED_32BIT;
wolfssl/wolfcrypt/curve{25519,448}.h: fix redundant typedefs of curve{25519,448}_key (fixes -Wpedantic warnings);
configure.ac: fix for "ISO C forbids an empty translation unit [-Werror=pedantic]", re wolfcrypt/src/sp_c{32,64}.c;
configure.ac: fixes for --enable-32bit versus pedantic "ISO C forbids an empty translation unit", including explicit exclusion of 32bit-incompatible algorithms from enable-all and enable-all-crypto sets;
tests/api.c: fixes for a couple inadequately gated SHA2 dependencies;
tests/api.c:test_wolfSSL_set_alpn_protos(): fix prototype missing (void);
wolfcrypt/src/misc.c and wolfssl/wolfcrypt/misc.h: fix ForceZero() definition and NO_INLINE prototype to not counterfactually constify the mem ptr, to avoid -Wmaybe-uninitialized from gcc11;
wolfcrypt/src/des3.c: drop obsolete register qualifier from declaration in DesSetKey(), for c++17 compatibility;
src/ssl.c:wolfSSL_BN_mod_word(): fix cast of arg2 to mp_mod_d().
