[catacomb] / symm / latinpoly-def.h

/* -*-c-*-
 *
 * AEAD schemes based on Salsa20/ChaCha and Poly1305
 *
 * (c) 2018 Straylight/Edgeware
 */

/*----- Licensing notice --------------------------------------------------*
 *
 * This file is part of Catacomb.
 *
 * Catacomb is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Library General Public License as published
 * by the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Catacomb is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with Catacomb.  If not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
 * USA.
 */

#ifndef CATACOMB_LATINPOLY_DEF_H
#define CATACOMB_LATINPOLY_DEF_H

#ifdef __cplusplus
  extern "C" {
#endif

/*----- Header files ------------------------------------------------------*/

#include <mLib/bits.h>
#include <mLib/buf.h>
#include <mLib/sub.h>

#ifndef CATACOMB_ARENA_H
#  include "arena.h"
#endif

#ifndef CATACOMB_CT_H
#  include "ct.h"
#endif

#ifndef CATACOMB_GAEAD_H
#  include "gaead.h"
#endif

#ifndef CATACOMB_KEYSZ_H
#  include "keysz.h"
#endif

#ifndef CATACOMB_LATINPOLY_H
#  include "latinpoly.h"
#endif

#ifndef CATACOMB_PARANOIA_H
#  include "paranoia.h"
#endif

#ifndef CATACOMB_POLY1305_H
#  include "poly1305.h"
#endif

#ifndef CATACOMB_SALSA20_H
#  include "salsa20.h"
#endif

/*----- Data structures ---------------------------------------------------*/

typedef struct latinpoly_aad {
  gaead_aad a;
  poly1305_ctx poly;
} latinpoly_aad;

typedef struct latinpoly_key {
  gaead_key k;
  octet key[SALSA20_KEYSZ];
  size_t ksz;
} latinpoly_key;

/*----- Common definitions ------------------------------------------------*/

/* Tables. */
extern const octet latinpoly_noncesz[], latinpoly_tagsz[];

/* AAD methods. */
extern void latinpoly_aadhash(gaead_aad */*a*/,
			      const void */*h*/, size_t /*hsz*/);
extern void latinpoly_aaddestroy(gaead_aad */*a*/);

/* --- @latinpoly_tag@ --- *
 *
 * Arguments:	@const poly1305_ctx *aad@ = Poly1305 context hashing AAD
 *		@poly1305_ctx *ct@ = Poly1305 context hashing ciphertext
 *		@void *tag@ = where to write the tag
 *
 * Returns:	---
 *
 * Use:		Completes a Latin-dance-Poly1305 tag, combining the AAD and
 *		ciphertext hashes, appending their lengths, and writing the
 *		final masked hash to @tag@.  The @ct@ context is clobbered.
 */

extern void latinpoly_tag(const poly1305_ctx */*aad*/,
			  poly1305_ctx */*ct*/, void */*tag*/);

/*----- Macros ------------------------------------------------------------*/

#define LATINPOLY_DEF(latin, base, name)				\
									\
/* Utilities. */							\
									\
/* Reinitialize the stream cipher and hash state given a new nonce. */	\
static int reinit_##latin(x##latin##_ctx *ctx,				\
			  poly1305_ctx *aadpoly, poly1305_ctx *ctpoly,	\
			  const void *n, size_t nsz)			\
{									\
  poly1305_key pk;							\
  octet b[POLY1305_KEYSZ + POLY1305_MASKSZ];				\
									\
  switch (nsz) {							\
    case SALSA20_NONCESZ:						\
      memcpy(ctx->s.a, ctx->k, sizeof(ctx->k));				\
      base##_setnonce(&ctx->s, n);					\
      break;								\
    case SALSA20_IETF_NONCESZ:						\
      memcpy(ctx->s.a, ctx->k, sizeof(ctx->k));				\
      base##_setnonce_ietf(&ctx->s, n);					\
      break;								\
    case XSALSA20_NONCESZ:						\
      x##latin##_setnonce(ctx, n);					\
      break;								\
    default:								\
      return (-1);							\
  }									\
									\
  latin##_encrypt(&ctx->s, 0, b, sizeof(b));				\
  poly1305_keyinit(&pk, b, POLY1305_KEYSZ);				\
  poly1305_macinit(aadpoly, &pk, b + POLY1305_KEYSZ);			\
  poly1305_macinit(ctpoly, &pk, b + POLY1305_KEYSZ);			\
  latin##_encrypt(&ctx->s, 0, 0, SALSA20_OUTSZ - sizeof(b));		\
  return (0);								\
}									\
									\
/* AAD operations. */							\
									\
static const gaead_aadops gaops_##latin =				\
  { &latin##_poly1305, 0, latinpoly_aadhash, latinpoly_aaddestroy };	\
									\
/* Encryption operations. */						\
									\
typedef struct gectx_##latin {						\
  gaead_enc e;								\
  latinpoly_aad aad;							\
  x##latin##_ctx ctx;							\
  poly1305_ctx poly;							\
} gectx_##latin;							\
									\
static gaead_aad *geaad_##latin(gaead_enc *e)				\
  { gectx_##latin *enc = (gectx_##latin *)e; return (&enc->aad.a); }	\
									\
static int gereinit_##latin(gaead_enc *e, const void *n, size_t nsz,	\
			    size_t hsz, size_t msz, size_t tsz)		\
{									\
  gectx_##latin *enc = (gectx_##latin *)e;				\
  return (reinit_##latin(&enc->ctx, &enc->aad.poly, &enc->poly, n, nsz)); \
}									\
									\
static int geenc_##latin(gaead_enc *e,					\
			 const void *m, size_t msz, buf *b)		\
{									\
  gectx_##latin *enc = (gectx_##latin *)e;				\
  void *q;								\
									\
  if (msz) { q = buf_get(b, msz); if (!q) return (-1); }		\
  else q = 0;								\
  latin##_encrypt(&enc->ctx.s, m, q, msz);				\
  poly1305_hash(&enc->poly, q, msz);					\
  return (0);								\
}									\
									\
static int gedone_##latin(gaead_enc *e, const gaead_aad *a,		\
			  buf *b, void *t, size_t tsz)			\
{									\
  gectx_##latin *enc = (gectx_##latin *)e;				\
  const latinpoly_aad *aad = (const latinpoly_aad *)a;			\
									\
  if (tsz != POLY1305_TAGSZ) return (-1);				\
  assert((!enc->aad.poly.count && !enc->aad.poly.nbuf && !a) ||		\
	 a == &enc->aad.a);						\
  if (!BOK(b)) return (-1);						\
  latinpoly_tag(aad ? &aad->poly : 0, &enc->poly, t);			\
  return (0);								\
}									\
									\
static void gedestroy_##latin(gaead_enc *e)				\
  { gectx_##latin *enc = (gectx_##latin *)e; BURN(*enc); S_DESTROY(enc); } \
									\
static gaead_encops geops_##latin =					\
  { &latin##_poly1305, geaad_##latin, gereinit_##latin,			\
    geenc_##latin, gedone_##latin, gedestroy_##latin };			\
									\
/* Decryption operations. */						\
									\
typedef struct gdctx_##latin {						\
  gaead_dec d;								\
  latinpoly_aad aad;							\
  x##latin##_ctx ctx;							\
  poly1305_ctx poly;							\
} gdctx_##latin;							\
									\
static gaead_aad *gdaad_##latin(gaead_dec *d)				\
  { gdctx_##latin *dec = (gdctx_##latin *)d; return (&dec->aad.a); }	\
									\
static int gdreinit_##latin(gaead_dec *d, const void *n, size_t nsz,	\
			    size_t hsz, size_t msz, size_t tsz)		\
{									\
  gdctx_##latin *dec = (gdctx_##latin *)d;				\
  return (reinit_##latin(&dec->ctx, &dec->aad.poly, &dec->poly, n, nsz)); \
}									\
									\
static int gddec_##latin(gaead_dec *d,					\
			 const void *c, size_t csz, buf *b)		\
{									\
  gdctx_##latin *dec = (gdctx_##latin *)d;				\
  void *q;								\
									\
  if (csz) { q = buf_get(b, csz); if (!q) return (-1); }		\
  else q = 0;								\
  poly1305_hash(&dec->poly, c, csz);					\
  latin##_encrypt(&dec->ctx.s, c, q, csz);				\
  return (0);								\
}									\
									\
static int gddone_##latin(gaead_dec *d, const gaead_aad *a,		\
			  buf *b, const void *t, size_t tsz)		\
{									\
  gdctx_##latin *dec = (gdctx_##latin *)d;				\
  const latinpoly_aad *aad = (const latinpoly_aad *)a;			\
  octet u[POLY1305_TAGSZ];						\
									\
  if (tsz != POLY1305_TAGSZ) return (-1);				\
  assert((!dec->aad.poly.count && !dec->aad.poly.nbuf && !a) ||		\
	 a == &dec->aad.a);						\
  if (!BOK(b)) return (-1);						\
  latinpoly_tag(aad ? &aad->poly : 0, &dec->poly, u);			\
  if (ct_memeq(t, u, POLY1305_TAGSZ)) return (+1);			\
  else return (0);							\
}									\
									\
static void gddestroy_##latin(gaead_dec *d)				\
  { gdctx_##latin *dec = (gdctx_##latin *)d; BURN(*dec); S_DESTROY(dec); } \
									\
static gaead_decops gdops_##latin =					\
  { &latin##_poly1305, gdaad_##latin, gdreinit_##latin,			\
    gddec_##latin, gddone_##latin, gddestroy_##latin };			\
									\
/* Key operations. */							\
									\
static gaead_enc *gkenc_##latin(const gaead_key *k,			\
				const void *n, size_t nsz,		\
				size_t hsz, size_t msz, size_t tsz)	\
{									\
  latinpoly_key *key = (latinpoly_key *)k;				\
  gectx_##latin *enc = S_CREATE(gectx_##latin);				\
									\
  enc->e.ops = &geops_##latin; enc->aad.a.ops = &gaops_##latin;		\
  x##latin##_init(&enc->ctx, key->key, key->ksz, 0);			\
  reinit_##latin(&enc->ctx, &enc->aad.poly, &enc->poly, n, nsz);	\
  return (&enc->e);							\
}									\
									\
static gaead_dec *gkdec_##latin(const gaead_key *k,			\
				const void *n, size_t nsz,		\
				size_t hsz, size_t msz, size_t tsz)	\
{									\
  latinpoly_key *key = (latinpoly_key *)k;				\
  gdctx_##latin *dec = S_CREATE(gdctx_##latin);				\
									\
  dec->d.ops = &gdops_##latin; dec->aad.a.ops = &gaops_##latin;		\
  x##latin##_init(&dec->ctx, key->key, key->ksz, 0);			\
  reinit_##latin(&dec->ctx, &dec->aad.poly, &dec->poly, n, nsz);	\
  return (&dec->d);							\
}									\
									\
static void gkdestroy_##latin(gaead_key *k)				\
  { latinpoly_key *key = (latinpoly_key *)k; BURN(*key); S_DESTROY(key); } \
									\
static const gaead_keyops gkops_##latin =				\
  { &latin##_poly1305, 0, gkenc_##latin, gkdec_##latin,			\
    gkdestroy_##latin };						\
									\
/* Class definition. */							\
									\
static gaead_key *gkey_##latin(const void *k, size_t ksz)		\
{									\
  latinpoly_key *key = S_CREATE(latinpoly_key);				\
									\
  key->k.ops = &gkops_##latin;						\
  KSZ_ASSERT(latin, ksz); memcpy(key->key, k, ksz); key->ksz = ksz;	\
  return (&key->k);							\
}									\
									\
const gcaead latin##_poly1305 = {					\
  name "-poly1305", latin##_keysz, latinpoly_noncesz, latinpoly_tagsz,	\
  64, 0, 0, AEADF_AADNDEP,						\
  gkey_##latin								\
};

/*----- That's all, folks -------------------------------------------------*/

#ifdef __cplusplus
  }
#endif

#endif
Commit	Line	Data
aac19f0d MW	1	/* --c--
	2	*
	3	* AEAD schemes based on Salsa20/ChaCha and Poly1305
	4	*
	5	* (c) 2018 Straylight/Edgeware
	6	*/
	7
	8	/----- Licensing notice --------------------------------------------------
	9	*
	10	* This file is part of Catacomb.
	11	*
	12	* Catacomb is free software: you can redistribute it and/or modify it
	13	* under the terms of the GNU Library General Public License as published
	14	* by the Free Software Foundation; either version 2 of the License, or
	15	* (at your option) any later version.
	16	*
	17	* Catacomb is distributed in the hope that it will be useful, but
	18	* WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	20	* Library General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU Library General Public
	23	* License along with Catacomb. If not, write to the Free Software
	24	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
	25	* USA.
	26	*/
	27
	28	#ifndef CATACOMB_LATINPOLY_DEF_H
	29	#define CATACOMB_LATINPOLY_DEF_H
	30
	31	#ifdef __cplusplus
	32	extern "C" {
	33	#endif
	34
	35	/----- Header files ------------------------------------------------------/
	36
	37	#include <mLib/bits.h>
	38	#include <mLib/buf.h>
	39	#include <mLib/sub.h>
	40
	41	#ifndef CATACOMB_ARENA_H
	42	# include "arena.h"
	43	#endif
	44
	45	#ifndef CATACOMB_CT_H
	46	# include "ct.h"
	47	#endif
	48
	49	#ifndef CATACOMB_GAEAD_H
	50	# include "gaead.h"
	51	#endif
	52
	53	#ifndef CATACOMB_KEYSZ_H
	54	# include "keysz.h"
	55	#endif
	56
	57	#ifndef CATACOMB_LATINPOLY_H
	58	# include "latinpoly.h"
	59	#endif
	60
	61	#ifndef CATACOMB_PARANOIA_H
	62	# include "paranoia.h"
	63	#endif
	64
65	#ifndef CATACOMB_POLY1305_H
66	# include "poly1305.h"
67	#endif
68
69	#ifndef CATACOMB_SALSA20_H
70	# include "salsa20.h"
71	#endif
72
73	/----- Data structures ---------------------------------------------------/
74
75	typedef struct latinpoly_aad {
76	gaead_aad a;
77	poly1305_ctx poly;
78	} latinpoly_aad;
79
80	typedef struct latinpoly_key {
81	gaead_key k;
82	octet key[SALSA20_KEYSZ];
83	size_t ksz;
84	} latinpoly_key;
85
86	/----- Common definitions ------------------------------------------------/
87
88	/* Tables. */
89	extern const octet latinpoly_noncesz[], latinpoly_tagsz[];
90
91	/* AAD methods. */
92	extern void latinpoly_aadhash(gaead_aad /a*/,
93	const void /h/, size_t /hsz*/);
94	extern void latinpoly_aaddestroy(gaead_aad /a*/);
95
96	/* --- @latinpoly_tag@ --- *
97	*
98	* Arguments: @const poly1305_ctx *aad@ = Poly1305 context hashing AAD
99	* @poly1305_ctx *ct@ = Poly1305 context hashing ciphertext
100	* @void *tag@ = where to write the tag
101	*
102	* Returns: ---
103	*
104	* Use: Completes a Latin-dance-Poly1305 tag, combining the AAD and
105	* ciphertext hashes, appending their lengths, and writing the
106	* final masked hash to @tag@. The @ct@ context is clobbered.
107	*/
108
109	extern void latinpoly_tag(const poly1305_ctx /aad*/,
110	poly1305_ctx /ct/, void /tag/);
111
112	/----- Macros ------------------------------------------------------------/
113
114	#define LATINPOLY_DEF(latin, base, name) \
115	\
116	/* Utilities. */ \
117	\
118	/* Reinitialize the stream cipher and hash state given a new nonce. */ \
119	static int reinit_##latin(x##latin##_ctx *ctx, \
120	poly1305_ctx aadpoly, poly1305_ctx ctpoly, \
121	const void *n, size_t nsz) \
122	{ \
123	poly1305_key pk; \
124	octet b[POLY1305_KEYSZ + POLY1305_MASKSZ]; \
125	\
126	switch (nsz) { \
127	case SALSA20_NONCESZ: \
128	memcpy(ctx->s.a, ctx->k, sizeof(ctx->k)); \
129	base##_setnonce(&ctx->s, n); \
130	break; \
131	case SALSA20_IETF_NONCESZ: \
132	memcpy(ctx->s.a, ctx->k, sizeof(ctx->k)); \
133	base##_setnonce_ietf(&ctx->s, n); \
134	break; \
135	case XSALSA20_NONCESZ: \
136	x##latin##_setnonce(ctx, n); \
137	break; \
138	default: \
139	return (-1); \
140	} \
141	\
142	latin##_encrypt(&ctx->s, 0, b, sizeof(b)); \
143	poly1305_keyinit(&pk, b, POLY1305_KEYSZ); \
144	poly1305_macinit(aadpoly, &pk, b + POLY1305_KEYSZ); \
145	poly1305_macinit(ctpoly, &pk, b + POLY1305_KEYSZ); \
146	latin##_encrypt(&ctx->s, 0, 0, SALSA20_OUTSZ - sizeof(b)); \
147	return (0); \
148	} \
149	\
150	/* AAD operations. */ \
151	\
152	static const gaead_aadops gaops_##latin = \
153	{ &latin##_poly1305, 0, latinpoly_aadhash, latinpoly_aaddestroy }; \
154	\
155	/* Encryption operations. */ \
156	\
157	typedef struct gectx_##latin { \
158	gaead_enc e; \
159	latinpoly_aad aad; \
160	x##latin##_ctx ctx; \
161	poly1305_ctx poly; \
162	} gectx_##latin; \
163	\
164	static gaead_aad geaad_##latin(gaead_enc e) \
165	{ gectx_##latin enc = (gectx_##latin )e; return (&enc->aad.a); } \
166	\
167	static int gereinit_##latin(gaead_enc e, const void n, size_t nsz, \
168	size_t hsz, size_t msz, size_t tsz) \
169	{ \
170	gectx_##latin enc = (gectx_##latin )e; \
171	return (reinit_##latin(&enc->ctx, &enc->aad.poly, &enc->poly, n, nsz)); \
172	} \
173	\
174	static int geenc_##latin(gaead_enc *e, \
175	const void m, size_t msz, buf b) \
176	{ \
177	gectx_##latin enc = (gectx_##latin )e; \
178	void *q; \
179	\
180	if (msz) { q = buf_get(b, msz); if (!q) return (-1); } \
181	else q = 0; \
182	latin##_encrypt(&enc->ctx.s, m, q, msz); \
183	poly1305_hash(&enc->poly, q, msz); \
184	return (0); \
185	} \
186	\
187	static int gedone_##latin(gaead_enc e, const gaead_aad a, \
188	buf b, void t, size_t tsz) \
189	{ \
190	gectx_##latin enc = (gectx_##latin )e; \
191	const latinpoly_aad aad = (const latinpoly_aad )a; \
192	\
193	if (tsz != POLY1305_TAGSZ) return (-1); \
194	assert((!enc->aad.poly.count && !enc->aad.poly.nbuf && !a) \|\| \
195	a == &enc->aad.a); \
196	if (!BOK(b)) return (-1); \
197	latinpoly_tag(aad ? &aad->poly : 0, &enc->poly, t); \
198	return (0); \
199	} \
200	\
201	static void gedestroy_##latin(gaead_enc *e) \
202	{ gectx_##latin enc = (gectx_##latin )e; BURN(*enc); S_DESTROY(enc); } \
203	\
204	static gaead_encops geops_##latin = \
205	{ &latin##_poly1305, geaad_##latin, gereinit_##latin, \
206	geenc_##latin, gedone_##latin, gedestroy_##latin }; \
207	\
208	/* Decryption operations. */ \
209	\
210	typedef struct gdctx_##latin { \
211	gaead_dec d; \
212	latinpoly_aad aad; \
213	x##latin##_ctx ctx; \
214	poly1305_ctx poly; \
215	} gdctx_##latin; \
216	\
217	static gaead_aad gdaad_##latin(gaead_dec d) \
218	{ gdctx_##latin dec = (gdctx_##latin )d; return (&dec->aad.a); } \
219	\
220	static int gdreinit_##latin(gaead_dec d, const void n, size_t nsz, \
221	size_t hsz, size_t msz, size_t tsz) \
222	{ \
223	gdctx_##latin dec = (gdctx_##latin )d; \
224	return (reinit_##latin(&dec->ctx, &dec->aad.poly, &dec->poly, n, nsz)); \
225	} \
226	\
227	static int gddec_##latin(gaead_dec *d, \
228	const void c, size_t csz, buf b) \
229	{ \
230	gdctx_##latin dec = (gdctx_##latin )d; \
231	void *q; \
232	\
233	if (csz) { q = buf_get(b, csz); if (!q) return (-1); } \
234	else q = 0; \
235	poly1305_hash(&dec->poly, c, csz); \
236	latin##_encrypt(&dec->ctx.s, c, q, csz); \
237	return (0); \
238	} \
239	\
240	static int gddone_##latin(gaead_dec d, const gaead_aad a, \
241	buf b, const void t, size_t tsz) \
242	{ \
243	gdctx_##latin dec = (gdctx_##latin )d; \
244	const latinpoly_aad aad = (const latinpoly_aad )a; \
245	octet u[POLY1305_TAGSZ]; \
246	\
247	if (tsz != POLY1305_TAGSZ) return (-1); \
248	assert((!dec->aad.poly.count && !dec->aad.poly.nbuf && !a) \|\| \
249	a == &dec->aad.a); \
250	if (!BOK(b)) return (-1); \
251	latinpoly_tag(aad ? &aad->poly : 0, &dec->poly, u); \
252	if (ct_memeq(t, u, POLY1305_TAGSZ)) return (+1); \
253	else return (0); \
254	} \
255	\
256	static void gddestroy_##latin(gaead_dec *d) \
257	{ gdctx_##latin dec = (gdctx_##latin )d; BURN(*dec); S_DESTROY(dec); } \
258	\
259	static gaead_decops gdops_##latin = \
260	{ &latin##_poly1305, gdaad_##latin, gdreinit_##latin, \
261	gddec_##latin, gddone_##latin, gddestroy_##latin }; \
262	\
263	/* Key operations. */ \
264	\
265	static gaead_enc gkenc_##latin(const gaead_key k, \
266	const void *n, size_t nsz, \
267	size_t hsz, size_t msz, size_t tsz) \
268	{ \
269	latinpoly_key key = (latinpoly_key )k; \
270	gectx_##latin *enc = S_CREATE(gectx_##latin); \
271	\
272	enc->e.ops = &geops_##latin; enc->aad.a.ops = &gaops_##latin; \
273	x##latin##_init(&enc->ctx, key->key, key->ksz, 0); \
274	reinit_##latin(&enc->ctx, &enc->aad.poly, &enc->poly, n, nsz); \
275	return (&enc->e); \
276	} \
277	\
278	static gaead_dec gkdec_##latin(const gaead_key k, \
279	const void *n, size_t nsz, \
280	size_t hsz, size_t msz, size_t tsz) \
281	{ \
282	latinpoly_key key = (latinpoly_key )k; \
283	gdctx_##latin *dec = S_CREATE(gdctx_##latin); \
284	\
285	dec->d.ops = &gdops_##latin; dec->aad.a.ops = &gaops_##latin; \
286	x##latin##_init(&dec->ctx, key->key, key->ksz, 0); \
287	reinit_##latin(&dec->ctx, &dec->aad.poly, &dec->poly, n, nsz); \
288	return (&dec->d); \
289	} \
290	\
291	static void gkdestroy_##latin(gaead_key *k) \
292	{ latinpoly_key key = (latinpoly_key )k; BURN(*key); S_DESTROY(key); } \
293	\
294	static const gaead_keyops gkops_##latin = \
295	{ &latin##_poly1305, 0, gkenc_##latin, gkdec_##latin, \
296	gkdestroy_##latin }; \
297	\
298	/* Class definition. */ \
299	\
300	static gaead_key gkey_##latin(const void k, size_t ksz) \
301	{ \
302	latinpoly_key *key = S_CREATE(latinpoly_key); \
303	\
304	key->k.ops = &gkops_##latin; \
305	KSZ_ASSERT(latin, ksz); memcpy(key->key, k, ksz); key->ksz = ksz; \
306	return (&key->k); \
307	} \
308	\
309	const gcaead latin##_poly1305 = { \
310	name "-poly1305", latin##_keysz, latinpoly_noncesz, latinpoly_tagsz, \
311	64, 0, 0, AEADF_AADNDEP, \
312	gkey_##latin \
313	};
314
315	/----- That's all, folks -------------------------------------------------/
316
317	#ifdef __cplusplus
318	}
319	#endif
320
321	#endif