diff --git a/drivers/staging/rtl8192e/rtllib_crypt.h b/drivers/staging/rtl8192e/rtllib_crypt.h
new file mode 100644
index 0000000..5f8990c
--- /dev/null
+++ b/drivers/staging/rtl8192e/rtllib_crypt.h
@@ -0,0 +1,93 @@
+/*
+ * Original code based on Host AP (software wireless LAN access point) driver
+ * for Intersil Prism2/2.5/3.
+ *
+ * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
+ * <jkmaline@cc.hut.fi>
+ * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ *
+ * Adaption to a generic IEEE 802.11 stack by James Ketrenos
+ * <jketreno@linux.intel.com>
+ *
+ * Copyright (c) 2004, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation. See README and COPYING for
+ * more details.
+ */
+
+/*
+ * This file defines the interface to the rtllib crypto module.
+ */
+#ifndef RTLLIB_CRYPT_H
+#define RTLLIB_CRYPT_H
+
+#include <linux/skbuff.h>
+
+struct rtllib_crypto_ops {
+	const char *name;
+
+	/* init new crypto context (e.g., allocate private data space,
+	 * select IV, etc.); returns NULL on failure or pointer to allocated
+	 * private data on success */
+	void * (*init)(int keyidx);
+
+	/* deinitialize crypto context and free allocated private data */
+	void (*deinit)(void *priv);
+
+	/* encrypt/decrypt return < 0 on error or >= 0 on success. The return
+	 * value from decrypt_mpdu is passed as the keyidx value for
+	 * decrypt_msdu. skb must have enough head and tail room for the
+	 * encryption; if not, error will be returned; these functions are
+	 * called for all MPDUs (i.e., fragments).
+	 */
+	int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
+	int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
+
+	/* These functions are called for full MSDUs, i.e. full frames.
+	 * These can be NULL if full MSDU operations are not needed. */
+	int (*encrypt_msdu)(struct sk_buff *skb, int hdr_len, void *priv);
+	int (*decrypt_msdu)(struct sk_buff *skb, int keyidx, int hdr_len,
+			    void *priv, struct rtllib_device* ieee);
+
+	int (*set_key)(void *key, int len, u8 *seq, void *priv);
+	int (*get_key)(void *key, int len, u8 *seq, void *priv);
+
+	/* procfs handler for printing out key information and possible
+	 * statistics */
+	char * (*print_stats)(char *p, void *priv);
+
+	/* maximum number of bytes added by encryption; encrypt buf is
+	 * allocated with extra_prefix_len bytes, copy of in_buf, and
+	 * extra_postfix_len; encrypt need not use all this space, but
+	 * the result must start at the beginning of the buffer and correct
+	 * length must be returned */
+	int extra_prefix_len, extra_postfix_len;
+
+	struct module *owner;
+};
+
+struct rtllib_crypt_data {
+	struct list_head list; /* delayed deletion list */
+	struct rtllib_crypto_ops *ops;
+	void *priv;
+	atomic_t refcnt;
+};
+
+int rtllib_register_crypto_ops(struct rtllib_crypto_ops *ops);
+int rtllib_unregister_crypto_ops(struct rtllib_crypto_ops *ops);
+struct rtllib_crypto_ops * rtllib_get_crypto_ops(const char *name);
+void rtllib_crypt_deinit_entries(struct rtllib_device *, int);
+void rtllib_crypt_deinit_handler(unsigned long);
+void rtllib_crypt_delayed_deinit(struct rtllib_device *ieee,
+				    struct rtllib_crypt_data **crypt);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK)
+#endif
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,31))
+#define crypto_alloc_tfm crypto_alloc_tfm_rsl
+#define crypto_free_tfm crypto_free_tfm_rsl
+#endif
+
+#endif