diff --git a/MANIFEST b/MANIFEST
index 9617adb..d370a80 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -16,7 +16,6 @@ t/crypto.t
 t/der.t
 t/error.t
 t/error_queue.t
-t/fakelib/Crypt/OpenSSL/Bignum.pm
 t/format.t
 t/get_key_parameters.t
 t/key_lifecycle.t
diff --git a/t/bignum.t b/t/bignum.t
index 70aea5c..ea64b29 100644
--- a/t/bignum.t
+++ b/t/bignum.t
@@ -3,9 +3,7 @@ use Test::More;
 
 use Crypt::OpenSSL::RSA;
 
-$INC{'Crypt/OpenSSL/Bignum.pm'}
-  ? plan( tests    => 64 )
-  : plan( skip_all => "Crypt::OpenSSL::Bignum required for bignum tests" );
+plan( tests => 64 );
 
 my @PARAM_NAMES = qw(n e d p q dmp1 dmq1 iqmp);
 
diff --git a/t/check_param.t b/t/check_param.t
index d58f8fc..5b2f2e7 100644
--- a/t/check_param.t
+++ b/t/check_param.t
@@ -7,11 +7,7 @@ use Crypt::OpenSSL::RSA;
 Crypt::OpenSSL::Random::random_seed("OpenSSL needs at least 32 bytes.");
 Crypt::OpenSSL::RSA->import_random_seed();
 
-my $HAS_BIGNUM = $INC{'Crypt/OpenSSL/Bignum.pm'} ? 1 : 0;
-
-$HAS_BIGNUM
-    ? plan( tests => 9 )
-    : plan( skip_all => "Crypt::OpenSSL::Bignum required for check_param tests" );
+plan( tests => 9 );
 
 my $rsa = Crypt::OpenSSL::RSA->generate_key(2048);
 my ( $n, $e, $d, $p, $q ) = $rsa->get_key_parameters();
diff --git a/t/fakelib/Crypt/OpenSSL/Bignum.pm b/t/fakelib/Crypt/OpenSSL/Bignum.pm
deleted file mode 100644
index 97603fc..0000000
--- a/t/fakelib/Crypt/OpenSSL/Bignum.pm
+++ /dev/null
@@ -1,3 +0,0 @@
-package Crypt::OpenSSL::Bignum;
-
-0;    # make require fail
diff --git a/t/key_lifecycle.t b/t/key_lifecycle.t
index 5c25b19..a049915 100644
--- a/t/key_lifecycle.t
+++ b/t/key_lifecycle.t
@@ -7,10 +7,6 @@ use Crypt::OpenSSL::RSA;
 Crypt::OpenSSL::Random::random_seed("OpenSSL needs at least 32 bytes.");
 Crypt::OpenSSL::RSA->import_random_seed();
 
-my $HAS_BIGNUM = eval { require Crypt::OpenSSL::Bignum; 1 } ? 1 : 0;
-
-# skip() reports skipped tests which count toward total, so plan must
-# always include them regardless of whether Bignum is available.
 plan tests => 9 + 14 + 20 + 2 + 4;
 
 # --- Cross-key operations ---
@@ -58,12 +54,8 @@ ok( $rsa1->verify($plaintext, $sig_copy),
     "original key verifies signature from exported key" );
 
 # --- Key parameter round-trip with real-sized keys ---
-# Requires Crypt::OpenSSL::Bignum
-
-SKIP: {
-    skip "Crypt::OpenSSL::Bignum required for parameter tests", 14
-        unless $HAS_BIGNUM;
 
+{
     # Extract parameters from a 2048-bit key
     my ($n, $e, $d, $p, $q, $dmp1, $dmq1, $iqmp) = $rsa1->get_key_parameters();
 
@@ -116,10 +108,7 @@ SKIP: {
 # Tests for deriving missing p or q from n, and constructing keys
 # from n/e/d without CRT params.
 
-SKIP: {
-    skip "Crypt::OpenSSL::Bignum required for derivation tests", 20
-        unless $HAS_BIGNUM;
-
+{
     my ($n, $e, $d, $p, $q) = $rsa1->get_key_parameters();
 
     # --- Derive q from n and p (pass p, omit q) ---
diff --git a/t/keygen.t b/t/keygen.t
index 2a4f1d3..2e3ff23 100644
--- a/t/keygen.t
+++ b/t/keygen.t
@@ -12,8 +12,6 @@ use Crypt::OpenSSL::RSA;
 Crypt::OpenSSL::Random::random_seed("OpenSSL needs at least 32 bytes.");
 Crypt::OpenSSL::RSA->import_random_seed();
 
-my $HAS_BIGNUM = eval { require Crypt::OpenSSL::Bignum; 1 } ? 1 : 0;
-
 # Use 2048-bit keys throughout — AlmaLinux 9 and other FIPS-like systems
 # enforce a minimum RSA key size of 2048 bits.
 my $BITS = 2048;
@@ -29,8 +27,7 @@ plan tests => 29;
     ok($rsa->is_private(), "generated key is private");
     ok($rsa->check_key(), "key passes check_key");
 
-    SKIP: {
-        skip "Crypt::OpenSSL::Bignum not available", 1 unless $HAS_BIGNUM;
+    {
         my (undef, $e) = $rsa->get_key_parameters();
         is($e->to_decimal(), "65537", "exponent is 65537");
     }
@@ -51,8 +48,7 @@ plan tests => 29;
         ok($sig, "e=3 key can sign");
         ok($rsa->verify("test message", $sig), "e=3 key signature verifies");
 
-        SKIP: {
-            skip "Crypt::OpenSSL::Bignum not available", 1 unless $HAS_BIGNUM;
+        {
             my (undef, $e) = $rsa->get_key_parameters();
             is($e->to_decimal(), "3", "exponent is 3");
         }
@@ -73,8 +69,7 @@ plan tests => 29;
         my $pt = $rsa->decrypt($ct);
         is($pt, "hello", "e=17 key encrypt/decrypt round-trip");
 
-        SKIP: {
-            skip "Crypt::OpenSSL::Bignum not available", 1 unless $HAS_BIGNUM;
+        {
             my (undef, $e) = $rsa->get_key_parameters();
             is($e->to_decimal(), "17", "exponent is 17");
         }