Add GCM, CTR, and CTS modes to AES.

nss/mozilla/security/nss/lib/freebl/cts.h

+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef CTS_H
+#define CTS_H 1
+
+#include "blapii.h"
+
+typedef struct CTSContextStr CTSContext;
+
+/*
+ * The context argument is the inner cipher context to use with cipher. The
+ * CTSContext does not own context. context needs to remain valid for as long
+ * as the CTSContext is valid.
+ *
+ * The cipher argument is a block cipher in the CBC mode.
+ */
+CTSContext *CTS_CreateContext(void *context, freeblCipherFunc cipher,
+                        const unsigned char *iv, unsigned int blocksize);
+
+void CTS_DestroyContext(CTSContext *cts, PRBool freeit);
+
+SECStatus CTS_EncryptUpdate(CTSContext *cts, unsigned char *outbuf,
+                        unsigned int *outlen, unsigned int maxout,
+                        const unsigned char *inbuf, unsigned int inlen,
+                        unsigned int blocksize);
+SECStatus CTS_DecryptUpdate(CTSContext *cts, unsigned char *outbuf,
+                        unsigned int *outlen, unsigned int maxout,
+                        const unsigned char *inbuf, unsigned int inlen,
+                        unsigned int blocksize);
+
+#endif