security/nss/lib/freebl/gcm.h

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1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 #ifndef GCM_H
6 #define GCM_H 1
7
8 #include "blapii.h"
9
10 typedef struct GCMContextStr GCMContext;
11
12 /*
13 * The context argument is the inner cipher context to use with cipher. The
14 * GCMContext does not own context. context needs to remain valid for as long
15 * as the GCMContext is valid.
16 *
17 * The cipher argument is a block cipher in the ECB encrypt mode.
18 */
19 GCMContext * GCM_CreateContext(void *context, freeblCipherFunc cipher,
20 const unsigned char *params, unsigned int blocksize);
21 void GCM_DestroyContext(GCMContext *gcm, PRBool freeit);
22 SECStatus GCM_EncryptUpdate(GCMContext *gcm, unsigned char *outbuf,
23 unsigned int *outlen, unsigned int maxout,
24 const unsigned char *inbuf, unsigned int inlen,
25 unsigned int blocksize);
26 SECStatus GCM_DecryptUpdate(GCMContext *gcm, unsigned char *outbuf,
27 unsigned int *outlen, unsigned int maxout,
28 const unsigned char *inbuf, unsigned int inlen,
29 unsigned int blocksize);
30
31 #endif

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