Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (64 commits)
  [BLOCK] dm-crypt: trivial comment improvements
  [CRYPTO] api: Deprecate crypto_digest_* and crypto_alg_available
  [CRYPTO] padlock: Convert padlock-sha to use crypto_hash
  [CRYPTO] users: Use crypto_comp and crypto_has_*
  [CRYPTO] api: Add crypto_comp and crypto_has_*
  [CRYPTO] users: Use crypto_hash interface instead of crypto_digest
  [SCSI] iscsi: Use crypto_hash interface instead of crypto_digest
  [CRYPTO] digest: Remove old HMAC implementation
  [CRYPTO] doc: Update documentation for hash and me
  [SCTP]: Use HMAC template and hash interface
  [IPSEC]: Use HMAC template and hash interface
  [CRYPTO] tcrypt: Use HMAC template and hash interface
  [CRYPTO] hmac: Add crypto template implementation
  [CRYPTO] digest: Added user API for new hash type
  [CRYPTO] api: Mark parts of cipher interface as deprecated
  [PATCH] scatterlist: Add const to sg_set_buf/sg_init_one pointer argument
  [CRYPTO] drivers: Remove obsolete block cipher operations
  [CRYPTO] users: Use block ciphers where applicable
  [SUNRPC] GSS: Use block ciphers where applicable
  [IPSEC] ESP: Use block ciphers where applicable
  ...

1 files changed, 22 insertions, 0 deletions

diff --git a/include/crypto/twofish.h b/include/crypto/twofish.h
new file mode 100644
index 000000000000..c408522595c6
--- /dev/null
+++ b/include/crypto/twofish.h
@@ -0,0 +1,22 @@
+#ifndef _CRYPTO_TWOFISH_H
+#define _CRYPTO_TWOFISH_H
+
+#include <linux/types.h>
+
+#define TF_MIN_KEY_SIZE 16
+#define TF_MAX_KEY_SIZE 32
+#define TF_BLOCK_SIZE 16
+
+struct crypto_tfm;
+
+/* Structure for an expanded Twofish key.  s contains the key-dependent
+ * S-boxes composed with the MDS matrix; w contains the eight "whitening"
+ * subkeys, K[0] through K[7].	k holds the remaining, "round" subkeys.  Note
+ * that k[i] corresponds to what the Twofish paper calls K[i+8]. */
+struct twofish_ctx {
+	u32 s[4][256], w[8], k[32];
+};
+
+int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len);
+
+#endif