diff --git a/include/sha_common_macros.h b/include/sha_common_macros.h
new file mode 100644
index 0000000..e90552f
--- /dev/null
+++ b/include/sha_common_macros.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2024, NVIDIA Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SHA_COMMON_MACROS_H
+#define SHA_COMMON_MACROS_H
+
+#define MD5_DIGEST_SIZE 16U
+#define SHA1_DIGEST_SIZE 20U
+#define SHA224_DIGEST_SIZE 28U
+#define SHA256_DIGEST_SIZE 32U
+#define SHA384_DIGEST_SIZE 48U
+#define SHA512_224_DIGEST_SIZE 28U
+#define SHA512_256_DIGEST_SIZE 32U
+#define SHA512_DIGEST_SIZE 64U
+
+#endif /* SHA_COMMON_MACROS_H */