diff --git a/lib/hx509/ref/pkcs11.h b/lib/hx509/ref/pkcs11.h
index 115c309e4..905af0961 100644
--- a/lib/hx509/ref/pkcs11.h
+++ b/lib/hx509/ref/pkcs11.h
@@ -540,6 +540,15 @@ typedef unsigned long ck_mechanism_type_t;
 #define CKM_RIPEMD160			(0x240)
 #define CKM_RIPEMD160_HMAC		(0x241)
 #define CKM_RIPEMD160_HMAC_GENERAL	(0x242)
+#define CKM_SHA256			(0x250)
+#define CKM_SHA256_HMAC			(0x251)
+#define CKM_SHA256_HMAC_GENERAL		(0x252)
+#define CKM_SHA384			(0x260)
+#define CKM_SHA384_HMAC			(0x261)
+#define CKM_SHA384_HMAC_GENERAL		(0x262)
+#define CKM_SHA512			(0x270)
+#define CKM_SHA512_HMAC			(0x271)
+#define CKM_SHA512_HMAC_GENERAL		(0x272)
 #define CKM_CAST_KEY_GEN		(0x300)
 #define CKM_CAST_ECB			(0x301)
 #define CKM_CAST_CBC			(0x302)