diff --git a/CMakeLists.txt b/CMakeLists.txt
index 57bc8b6b..9e3ab039 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,32 +49,16 @@ endif (WITH_ZLIB)
 
 if (WITH_GCRYPT)
   find_package(GCrypt 1.5.0 REQUIRED)
-  if (NOT GCRYPT_FOUND)
-    message(FATAL_ERROR "Could not find GCrypt")
-  endif (NOT GCRYPT_FOUND)
 elseif(WITH_MBEDTLS)
     find_package(MbedTLS REQUIRED)
-    if (NOT MBEDTLS_FOUND)
-      message(FATAL_ERROR "Could not find mbedTLS")
-    endif (NOT MBEDTLS_FOUND)
-else (WITH_GCRYPT)
-  find_package(OpenSSL 1.1.1)
-  if (OPENSSL_FOUND)
-    # On CMake < 3.16, OPENSSL_CRYPTO_LIBRARIES is usually a synonym for OPENSSL_CRYPTO_LIBRARY, but is not defined
-    # when building on Windows outside of Cygwin. We provide the synonym here, if FindOpenSSL didn't define it already.
-    if (NOT DEFINED OPENSSL_CRYPTO_LIBRARIES)
-      set(OPENSSL_CRYPTO_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
-    endif (NOT DEFINED OPENSSL_CRYPTO_LIBRARIES)
-  else (OPENSSL_FOUND)
-    find_package(GCrypt)
-    if (NOT GCRYPT_FOUND)
-      find_package(MbedTLS)
-      if (NOT MBEDTLS_FOUND)
-        message(FATAL_ERROR "Could not find OpenSSL, GCrypt or mbedTLS")
-      endif (NOT MBEDTLS_FOUND)
-    endif (NOT GCRYPT_FOUND)
-  endif (OPENSSL_FOUND)
-endif(WITH_GCRYPT)
+else()
+  find_package(OpenSSL 1.1.1 REQUIRED)
+  # On CMake < 3.16, OPENSSL_CRYPTO_LIBRARIES is usually a synonym for OPENSSL_CRYPTO_LIBRARY, but is not defined
+  # when building on Windows outside of Cygwin. We provide the synonym here, if FindOpenSSL didn't define it already.
+  if (NOT DEFINED OPENSSL_CRYPTO_LIBRARIES)
+    set(OPENSSL_CRYPTO_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
+  endif (NOT DEFINED OPENSSL_CRYPTO_LIBRARIES)
+endif()
 
 if (UNIT_TESTING)
     find_package(CMocka REQUIRED)