diff --git a/src/ipa/meson.build b/src/ipa/meson.build
index cb4e3ab3388f..96d3ce79ffe9 100644
--- a/src/ipa/meson.build
+++ b/src/ipa/meson.build
@@ -10,7 +10,9 @@ config_h.set('IPA_MODULE_DIR',
 
 subdir('libipa')
 
-ipa_sign = find_program('ipa-sign.sh')
+if ipa_sign_module
+    ipa_sign = find_program('ipa-sign.sh')
+endif
 
 ipas = ['rkisp1', 'vimc']
 
diff --git a/src/ipa/rkisp1/meson.build b/src/ipa/rkisp1/meson.build
index 6ccadcfbbe64..247d0429b49c 100644
--- a/src/ipa/rkisp1/meson.build
+++ b/src/ipa/rkisp1/meson.build
@@ -9,9 +9,11 @@ mod = shared_module(ipa_name,
                     install : true,
                     install_dir : ipa_install_dir)
 
-custom_target(ipa_name + '.so.sign',
-              input : mod,
-              output : ipa_name + '.so.sign',
-              command : [ ipa_sign, ipa_priv_key, '@INPUT@', '@OUTPUT@' ],
-              install : true,
-              install_dir : ipa_install_dir)
+if ipa_sign_module
+    custom_target(ipa_name + '.so.sign',
+                  input : mod,
+                  output : ipa_name + '.so.sign',
+                  command : [ ipa_sign, ipa_priv_key, '@INPUT@', '@OUTPUT@' ],
+                  install : true,
+                  install_dir : ipa_install_dir)
+endif
diff --git a/src/ipa/vimc/meson.build b/src/ipa/vimc/meson.build
index 3c932aa7aaad..a354096d8496 100644
--- a/src/ipa/vimc/meson.build
+++ b/src/ipa/vimc/meson.build
@@ -9,9 +9,11 @@ mod = shared_module(ipa_name,
                     install : true,
                     install_dir : ipa_install_dir)
 
-custom_target(ipa_name + '.so.sign',
-              input : mod,
-              output : ipa_name + '.so.sign',
-              command : [ ipa_sign, ipa_priv_key, '@INPUT@', '@OUTPUT@' ],
-              install : true,
-              install_dir : ipa_install_dir)
+if ipa_sign_module
+    custom_target(ipa_name + '.so.sign',
+                  input : mod,
+                  output : ipa_name + '.so.sign',
+                  command : [ ipa_sign, ipa_priv_key, '@INPUT@', '@OUTPUT@' ],
+                  install : true,
+                  install_dir : ipa_install_dir)
+endif
diff --git a/src/libcamera/include/ipa_manager.h b/src/libcamera/include/ipa_manager.h
index 0b5fd2ac1f12..6165efb8b145 100644
--- a/src/libcamera/include/ipa_manager.h
+++ b/src/libcamera/include/ipa_manager.h
@@ -40,8 +40,10 @@ private:
 
 	bool isSignatureValid(IPAModule *ipa) const;
 
+#if HAVE_IPA_PUBKEY
 	static const uint8_t publicKeyData_[];
 	static const PubKey pubKey_;
+#endif
 };
 
 } /* namespace libcamera */
diff --git a/src/libcamera/ipa_manager.cpp b/src/libcamera/ipa_manager.cpp
index 7de1404eebdd..50b6792d6cce 100644
--- a/src/libcamera/ipa_manager.cpp
+++ b/src/libcamera/ipa_manager.cpp
@@ -304,6 +304,7 @@ std::unique_ptr<IPAInterface> IPAManager::createIPA(PipelineHandler *pipe,
 
 bool IPAManager::isSignatureValid(IPAModule *ipa) const
 {
+#if HAVE_IPA_PUBKEY
 	File file{ ipa->path() };
 	if (!file.open(File::ReadOnly))
 		return false;
@@ -319,6 +320,9 @@ bool IPAManager::isSignatureValid(IPAModule *ipa) const
 		<< (valid ? "valid" : "not valid");
 
 	return valid;
+#else
+	return false;
+#endif
 }
 
 } /* namespace libcamera */
diff --git a/src/libcamera/ipa_pub_key.cpp.in b/src/libcamera/ipa_pub_key.cpp.in
index e1fe287c160e..7ffc1e24d67b 100644
--- a/src/libcamera/ipa_pub_key.cpp.in
+++ b/src/libcamera/ipa_pub_key.cpp.in
@@ -2,7 +2,7 @@
 /*
  * Copyright (C) 2020, Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  *
- * ipa_key.cpp - IPA module signing public key
+ * ipa_pub_key.cpp - IPA module signing public key
  *
  * This file is auto-generated. Do not edit.
  */
@@ -11,10 +11,12 @@
 
 namespace libcamera {
 
+#if HAVE_IPA_PUBKEY
 const uint8_t IPAManager::publicKeyData_[] = {
 	${ipa_key}
 };
 
 const PubKey IPAManager::pubKey_{ { IPAManager::publicKeyData_ } };
+#endif
 
 } /* namespace libcamera */
diff --git a/src/libcamera/meson.build b/src/libcamera/meson.build
index c502450c4b2d..dcd2fb4900e6 100644
--- a/src/libcamera/meson.build
+++ b/src/libcamera/meson.build
@@ -101,13 +101,15 @@ version_cpp = vcs_tag(command : [gen_version, meson.build_root()],
 
 libcamera_sources += version_cpp
 
-gen_ipa_pub_key = files('gen-ipa-pub-key.py')
-ipa_pub_key_cpp = custom_target('ipa_pub_key_cpp',
-                                input : [ ipa_priv_key, 'ipa_pub_key.cpp.in' ],
-                                output : 'ipa_pub_key.cpp',
-                                command : [ gen_ipa_pub_key, '@INPUT@', '@OUTPUT@' ])
-
-libcamera_sources += ipa_pub_key_cpp
+if ipa_sign_module
+    gen_ipa_pub_key = files('gen-ipa-pub-key.py')
+    ipa_pub_key_cpp = custom_target('ipa_pub_key_cpp',
+                                    input : [ ipa_priv_key, 'ipa_pub_key.cpp.in' ],
+                                    output : 'ipa_pub_key.cpp',
+                                    command : [ gen_ipa_pub_key, '@INPUT@', '@OUTPUT@' ])
+
+    libcamera_sources += ipa_pub_key_cpp
+endif
 
 libcamera_deps = [
     libatomic,
diff --git a/src/meson.build b/src/meson.build
index dc0e0c82b900..296682758613 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -2,10 +2,17 @@ if get_option('android')
     subdir('android')
 endif
 
-ipa_gen_priv_key = find_program('ipa/gen-ipa-priv-key.sh')
-ipa_priv_key = custom_target('ipa-priv-key',
-                             output : [ 'ipa-priv-key.pem' ],
-                             command : [ ipa_gen_priv_key, '@OUTPUT@' ])
+openssl = find_program('openssl', required : false)
+if openssl.found()
+    ipa_gen_priv_key = find_program('ipa/gen-ipa-priv-key.sh')
+    ipa_priv_key = custom_target('ipa-priv-key',
+                                 output : [ 'ipa-priv-key.pem' ],
+                                 command : [ ipa_gen_priv_key, '@OUTPUT@' ])
+    config_h.set('HAVE_IPA_PUBKEY', 1)
+    ipa_sign_module = true
+else
+    ipa_sign_module = false
+endif
 
 subdir('libcamera')
 subdir('ipa')