1 files changed, 28 insertions, 0 deletions

diff --git a/include/crypto/cast6.h b/include/crypto/cast6.h
new file mode 100644
index 00000000000..157af6f342c
--- /dev/null
+++ b/include/crypto/cast6.h
@@ -0,0 +1,28 @@
+#ifndef _CRYPTO_CAST6_H
+#define _CRYPTO_CAST6_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+
+#define CAST6_BLOCK_SIZE 16
+#define CAST6_MIN_KEY_SIZE 16
+#define CAST6_MAX_KEY_SIZE 32
+
+struct cast6_ctx {
+        u32 Km[12][4];
+        u8 Kr[12][4];
+};
+
+int __cast6_setkey(struct cast6_ctx *ctx, const u8 *key,
+                   unsigned int keylen, u32 *flags);
+int cast6_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
+
+void __cast6_encrypt(struct cast6_ctx *ctx, u8 *dst, const u8 *src);
+void __cast6_decrypt(struct cast6_ctx *ctx, u8 *dst, const u8 *src);
+
+extern const u32 cast6_s1[256];
+extern const u32 cast6_s2[256];
+extern const u32 cast6_s3[256];
+extern const u32 cast6_s4[256];
+
+#endif