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-rw-r--r--include/crypto/arc4.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/crypto/arc4.h b/include/crypto/arc4.h
index 5b2c24ab0139..f3c22fe01704 100644
--- a/include/crypto/arc4.h
+++ b/include/crypto/arc4.h
@@ -6,8 +6,18 @@
#ifndef _CRYPTO_ARC4_H
#define _CRYPTO_ARC4_H
+#include <linux/types.h>
+
#define ARC4_MIN_KEY_SIZE 1
#define ARC4_MAX_KEY_SIZE 256
#define ARC4_BLOCK_SIZE 1
+struct arc4_ctx {
+ u32 S[256];
+ u32 x, y;
+};
+
+int arc4_setkey(struct arc4_ctx *ctx, const u8 *in_key, unsigned int key_len);
+void arc4_crypt(struct arc4_ctx *ctx, u8 *out, const u8 *in, unsigned int len);
+
#endif /* _CRYPTO_ARC4_H */