De-couple ESV from DRBG

Author: kaleb-himes

configure.ac

@@ -11020,6 +11020,7 @@ AM_CONDITIONAL([BUILD_DILITHIUM],[test "x$ENABLED_DILITHIUM" != "xno" || test "x
 AM_CONDITIONAL([BUILD_ECCSI],[test "x$ENABLED_ECCSI" = "xyes" || test "x$ENABLED_USERSETTINGS" = "xyes"])
 AM_CONDITIONAL([BUILD_SAKKE],[test "x$ENABLED_SAKKE" = "xyes" || test "x$ENABLED_USERSETTINGS" = "xyes"])
 AM_CONDITIONAL([BUILD_MEMORY],[test "x$ENABLED_MEMORY" = "xyes" || test "x$ENABLED_USERSETTINGS" = "xyes"])
+AM_CONDITIONAL([BUILD_MEMUSE],[test "x$ENABLED_ENTROPY_MEMUSE" = "xyes" || test "x$ENABLED_USERSETTINGS" = "xyes"])
 AM_CONDITIONAL([BUILD_RSA],[test "x$ENABLED_RSA" = "xyes" || test "x$ENABLED_USERSETTINGS" = "xyes"])
 AM_CONDITIONAL([BUILD_DH],[test "x$ENABLED_DH" != "xno" || test "x$ENABLED_USERSETTINGS" = "xyes"])
 AM_CONDITIONAL([BUILD_ASN],[test "x$ENABLED_ASN" != "xno" || test "x$ENABLED_RSA" = "xyes" || test "x$ENABLED_USERSETTINGS" = "xyes"])

src/include.am

@@ -181,6 +181,10 @@ src_libwolfssl@LIBSUFFIX@_la_SOURCES += \
                wolfcrypt/src/hmac.c \
                wolfcrypt/src/random.c
 
+if BUILD_MEMUSE
+src_libwolfssl@LIBSUFFIX@_la_SOURCES += wolfcrypt/src/wolfentropy.c
+endif
+
 src_libwolfssl@LIBSUFFIX@_la_SOURCES += wolfcrypt/src/kdf.c
 
 if BUILD_RSA
@@ -422,6 +426,10 @@ src_libwolfssl@LIBSUFFIX@_la_SOURCES += \
                wolfcrypt/src/hmac.c \
                wolfcrypt/src/random.c
 
+if BUILD_MEMUSE
+src_libwolfssl@LIBSUFFIX@_la_SOURCES += wolfcrypt/src/wolfentropy.c
+endif
+
 src_libwolfssl@LIBSUFFIX@_la_SOURCES += wolfcrypt/src/kdf.c
 
 if BUILD_RSA
@@ -770,6 +778,9 @@ endif !BUILD_FIPS_V5
 if !BUILD_FIPS_V2_PLUS
 if BUILD_RNG
 src_libwolfssl@LIBSUFFIX@_la_SOURCES += wolfcrypt/src/random.c
+if BUILD_MEMUSE
+src_libwolfssl@LIBSUFFIX@_la_SOURCES += wolfcrypt/src/wolfentropy.c
+endif
 endif
 endif !BUILD_FIPS_V2_PLUS