This PR is based off the contributions in PR #9223 by Jemmy1228.
It has been modified and reworked to:
(1) Work with providers
(2) Support ECDSA and DSA
(3) Add a KDF HMAC_DRBG implementation that shares code with the RAND HMAC_DRBG.
A nonce_type is passed around inside the Signing API's, in order to support any
future deterministic algorithms.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18809)
The original names were more intuitive: the generate_counter counts the
number of generate requests, and the reseed_counter counts the number
of reseedings (of the principal DRBG).
reseed_gen_counter -> generate_counter
reseed_prop_counter -> reseed_counter
This is the anologue to commit 8380f453ec on the 1.1.1 stable branch.
The only difference is that the second renaming has already been reverted
on the master branch.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12941)
