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Diffstat (limited to 'freebsd/sys/opencrypto/skipjack.h')
-rw-r--r--freebsd/sys/opencrypto/skipjack.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/freebsd/sys/opencrypto/skipjack.h b/freebsd/sys/opencrypto/skipjack.h
index 3e88418c..80367ea4 100644
--- a/freebsd/sys/opencrypto/skipjack.h
+++ b/freebsd/sys/opencrypto/skipjack.h
@@ -14,6 +14,11 @@
* 29 May 1998
*/
+#ifndef _SKIPJACK_H_
+#define _SKIPJACK_H_
+
extern void skipjack_forwards(u_int8_t *plain, u_int8_t *cipher, u_int8_t **key);
extern void skipjack_backwards(u_int8_t *cipher, u_int8_t *plain, u_int8_t **key);
extern void subkey_table_gen(u_int8_t *key, u_int8_t **key_tables);
+
+#endif