When openssl is compiled with MSVC and _WIN32_WINNT>=0x0601 (Windows 7), BCryptGenRandom is used instead of the legacy CryptoAPI.

This change brings the following benefits:
- Removes dependency on CryptoAPI (legacy API) respectively advapi32.dll
- CryptoAPI Cryptographic Service Providers (rsa full) are not dynamically loaded.
- Allows Universal Windows Platform (UWP) apps to use openssl (CryptGenRandom is not available for Windows store apps)
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1142)

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

Tweak to the wording on merge commits.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

Fix some typos and other minor amendments to NOTES.PERL.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

Make the recommendation for MSYS perl in an MSYS environment more forceful.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

Fix typos and clarify a few things in the CONTRIBUTING file.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

The README file was a little out of date so needed a refresh

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

The problem is the checking in policy_cache_set, there is a race
condition between the null check and obtaining the lock.  The fix is in
policy_cache_new to detect if the creation has happened already.

Reviewed-by: Richard Levitte <levitte@openssl.org>

RT#4557

Reviewed-by: Rich Salz <rsalz@openssl.org>

Reviewed-by: Rich Salz <rsalz@openssl.org>

Reviewed-by: Rich Salz <rsalz@openssl.org>

Reviewed-by: Rich Salz <rsalz@openssl.org>

Reviewed-by: Rich Salz <rsalz@openssl.org>

Port client auth tests to the new framework, add coverage. The old tests
were only testing success, and only for some protocol versions; the new
tests add all protocol versions and various failure modes.

Reviewed-by: Rich Salz <rsalz@openssl.org>

_ctr32 in function name refers to 32-bit counter, but it was implementing
64-bit one. This didn't pose problem to EVP, but 64-bit counter was just
misleading.

RT#4512

Reviewed-by: Richard Levitte <levitte@openssl.org>

This is needed to generate stable output names/symlinks.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Include a note in INSTALL that tests must be run from an unprivileged
process.

Reviewed-by: Rich Salz <rsalz@openssl.org>

Numerous test failures were occuring when Configured with enable-ubsan
although they could all be traced back to one issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>

Also fixes -Wstrict-oveflow warning on this file.

RT#4474 (partial)

Reviewed-by: Richard Levitte <levitte@openssl.org>

Adapt util/process_docs.pl

Reviewed-by: Rich Salz <rsalz@openssl.org>

Reviewed-by: Matt Caswell <matt@openssl.org>

The S symbol class wasn't checked.

Notified by Sebastian Andrzej Siewior

Reviewed-by: Tim Hudson <tjh@openssl.org>

checkpoint before release.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The set_reasons() function in v3_crld.c leaks a STACK_OF(CONF_VALUE)
object on an error path.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The int X509_PURPOSE_add() function was leaking an X509_PURPOSE object
on error.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The X509_TRUST_add() function was leaking an X509_TRUST object on error.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The ASN1_item_pack() function was leaking an ASN1_STRING object on error
paths.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The ASN1_GENERALIZEDTIME_adj() function leaks an ASN1_GENERALIZEDTIME
object on an error path.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The v2i_POLICY_MAPPINGS() function leaked ASN1_OBJECT pointers on error
paths.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The notice_section() function allocates a STACK_OF(CONF_VALUE) but
then fails to free it on an error path.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The v2i_AUTHORITY_KEYID() function can leak memory under an error
condition.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The crl2pkcs7 app leaks a stack of OPENSSL_STRINGs in error paths.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The dsaparam application allocates a temporary buffer but then doesn't
free it.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The function a2i_ASN1_INTEGER() allocates a buffer |s| but then fails
to free it on error paths.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The make_receipt_request() function in the cms app can leak memory on
an error condition.

Reviewed-by: Richard Levitte <levitte@openssl.org>

The ec_wNAF_mul() function allocates some temporary storage that it
doesn't always free on an error condition.

Reviewed-by: Richard Levitte <levitte@openssl.org>

After this merge, the only things left (from doc-nit-check) is
74 pages without a "RETURN VALUES" section.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

Add copyright to missing assembler files.
Add copyrights to missing test/* files.
Add copyrights
Various source and misc files.

Reviewed-by: Richard Levitte <levitte@openssl.org>