Add BN_check_prime()

Add a new API to test for primes that can't be misused, deprecated the
old APIs.

Suggested by Jake Massimo and Kenneth Paterson

Reviewed-by: Paul Dale <paul.dale@oracle.com>
GH: #9272
diff --git a/test/ectest.c b/test/ectest.c
index 5883633..dc36792 100644
--- a/test/ectest.c
+++ b/test/ectest.c
@@ -287,7 +287,7 @@
 
         || !TEST_true(BN_hex2bn(&p,                         "FFFFFFFF"
                                     "FFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF"))
-        || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+        || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
         || !TEST_true(BN_hex2bn(&a,                         "FFFFFFFF"
                                     "FFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC"))
         || !TEST_true(BN_hex2bn(&b,                         "1C97BEFC"
@@ -327,7 +327,7 @@
 
         || !TEST_true(BN_hex2bn(&p,                 "FFFFFFFFFFFFFFFF"
                                     "FFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF"))
-        || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+        || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
         || !TEST_true(BN_hex2bn(&a,                 "FFFFFFFFFFFFFFFF"
                                     "FFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC"))
         || !TEST_true(BN_hex2bn(&b,                 "64210519E59C80E7"
@@ -366,7 +366,7 @@
 
         || !TEST_true(BN_hex2bn(&p,         "FFFFFFFFFFFFFFFFFFFFFFFF"
                                     "FFFFFFFF000000000000000000000001"))
-        || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+        || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
         || !TEST_true(BN_hex2bn(&a,         "FFFFFFFFFFFFFFFFFFFFFFFF"
                                     "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE"))
         || !TEST_true(BN_hex2bn(&b,         "B4050A850C04B3ABF5413256"
@@ -405,7 +405,7 @@
 
         || !TEST_true(BN_hex2bn(&p, "FFFFFFFF000000010000000000000000"
                                     "00000000FFFFFFFFFFFFFFFFFFFFFFFF"))
-        || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+        || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
         || !TEST_true(BN_hex2bn(&a, "FFFFFFFF000000010000000000000000"
                                     "00000000FFFFFFFFFFFFFFFFFFFFFFFC"))
         || !TEST_true(BN_hex2bn(&b, "5AC635D8AA3A93E7B3EBBD55769886BC"
@@ -446,7 +446,7 @@
         || !TEST_true(BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
                                     "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"
                                     "FFFFFFFF0000000000000000FFFFFFFF"))
-        || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+        || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
         || !TEST_true(BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
                                     "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"
                                     "FFFFFFFF0000000000000000FFFFFFFC"))
@@ -493,7 +493,7 @@
                                     "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
                                     "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
                                     "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"))
-        || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+        || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
         || !TEST_true(BN_hex2bn(&a,                              "1FF"
                                     "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
                                     "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
@@ -1328,7 +1328,7 @@
 
         || !TEST_ptr(NISTP = EC_GROUP_new(test->meth()))
         || !TEST_true(BN_hex2bn(&p, test->p))
-        || !TEST_int_eq(1, BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
+        || !TEST_int_eq(1, BN_check_prime(p, ctx, NULL))
         || !TEST_true(BN_hex2bn(&a, test->a))
         || !TEST_true(BN_hex2bn(&b, test->b))
         || !TEST_true(EC_GROUP_set_curve(NISTP, p, a, b, ctx))