/src/openssl36/crypto/ffc/ffc_params.c

Source
/*
 * Copyright 2019-2024 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <string.h> /* memset */
#include <openssl/core_names.h>
#include "internal/ffc.h"
#include "internal/param_build_set.h"
#include "internal/nelem.h"

#ifndef FIPS_MODULE
#include <openssl/asn1.h> /* ossl_ffc_params_print */
#endif

void ossl_ffc_params_init(FFC_PARAMS *params)
{
    memset(params, 0, sizeof(*params));
    params->pcounter = -1;
    params->gindex = FFC_UNVERIFIABLE_GINDEX;
    params->flags = FFC_PARAM_FLAG_VALIDATE_PQG;
}

void ossl_ffc_params_cleanup(FFC_PARAMS *params)
{
#ifdef OPENSSL_PEDANTIC_ZEROIZATION
    BN_clear_free(params->p);
    BN_clear_free(params->q);
    BN_clear_free(params->g);
    BN_clear_free(params->j);
    OPENSSL_clear_free(params->seed, params->seedlen);
#else
    BN_free(params->p);
    BN_free(params->q);
    BN_free(params->g);
    BN_free(params->j);
    OPENSSL_free(params->seed);
#endif
    ossl_ffc_params_init(params);
}

void ossl_ffc_params_set0_pqg(FFC_PARAMS *d, BIGNUM *p, BIGNUM *q, BIGNUM *g)
{
    if (p != NULL && p != d->p) {
        BN_free(d->p);
        d->p = p;
    }
    if (q != NULL && q != d->q) {
        BN_free(d->q);
        d->q = q;
    }
    if (g != NULL && g != d->g) {
        BN_free(d->g);
        d->g = g;
    }
}

void ossl_ffc_params_get0_pqg(const FFC_PARAMS *d, const BIGNUM **p,
    const BIGNUM **q, const BIGNUM **g)
{
    if (p != NULL)
        *p = d->p;
    if (q != NULL)
        *q = d->q;
    if (g != NULL)
        *g = d->g;
}

/* j is the 'cofactor' that is optionally output for ASN1. */
void ossl_ffc_params_set0_j(FFC_PARAMS *d, BIGNUM *j)
{
    BN_free(d->j);
    d->j = NULL;
    if (j != NULL)
        d->j = j;
}

int ossl_ffc_params_set_seed(FFC_PARAMS *params,
    const unsigned char *seed, size_t seedlen)
{
    if (params->seed != NULL) {
        if (params->seed == seed)
            return 1;
        OPENSSL_free(params->seed);
    }

    if (seed != NULL && seedlen > 0) {
        params->seed = OPENSSL_memdup(seed, seedlen);
        if (params->seed == NULL)
            return 0;
        params->seedlen = seedlen;
    } else {
        params->seed = NULL;
        params->seedlen = 0;
    }
    return 1;
}

void ossl_ffc_params_set_gindex(FFC_PARAMS *params, int index)
{
    params->gindex = index;
}

void ossl_ffc_params_set_pcounter(FFC_PARAMS *params, int index)
{
    params->pcounter = index;
}

void ossl_ffc_params_set_h(FFC_PARAMS *params, int index)
{
    params->h = index;
}

void ossl_ffc_params_set_flags(FFC_PARAMS *params, unsigned int flags)
{
    params->flags = flags;
}

void ossl_ffc_params_enable_flags(FFC_PARAMS *params, unsigned int flags,
    int enable)
{
    if (enable)
        params->flags |= flags;
    else
        params->flags &= ~flags;
}

void ossl_ffc_set_digest(FFC_PARAMS *params, const char *alg, const char *props)
{
    params->mdname = alg;
    params->mdprops = props;
}

int ossl_ffc_params_set_validate_params(FFC_PARAMS *params,
    const unsigned char *seed,
    size_t seedlen, int counter)
{
    if (!ossl_ffc_params_set_seed(params, seed, seedlen))
        return 0;
    params->pcounter = counter;
    return 1;
}

void ossl_ffc_params_get_validate_params(const FFC_PARAMS *params,
    unsigned char **seed, size_t *seedlen,
    int *pcounter)
{
    if (seed != NULL)
        *seed = params->seed;
    if (seedlen != NULL)
        *seedlen = params->seedlen;
    if (pcounter != NULL)
        *pcounter = params->pcounter;
}

static int ffc_bn_cpy(BIGNUM **dst, const BIGNUM *src)
{
    BIGNUM *a;

    /*
     * If source is read only just copy the pointer, so
     * we don't have to reallocate it.
     */
    if (src == NULL)
        a = NULL;
    else if (BN_get_flags(src, BN_FLG_STATIC_DATA)
        && !BN_get_flags(src, BN_FLG_MALLOCED))
        a = (BIGNUM *)src;
    else if ((a = BN_dup(src)) == NULL)
        return 0;
    BN_clear_free(*dst);
    *dst = a;
    return 1;
}

int ossl_ffc_params_copy(FFC_PARAMS *dst, const FFC_PARAMS *src)
{
    if (!ffc_bn_cpy(&dst->p, src->p)
        || !ffc_bn_cpy(&dst->g, src->g)
        || !ffc_bn_cpy(&dst->q, src->q)
        || !ffc_bn_cpy(&dst->j, src->j))
        return 0;

    dst->mdname = src->mdname;
    dst->mdprops = src->mdprops;
    OPENSSL_free(dst->seed);
    dst->seedlen = src->seedlen;
    if (src->seed != NULL) {
        dst->seed = OPENSSL_memdup(src->seed, src->seedlen);
        if (dst->seed == NULL)
            return 0;
    } else {
        dst->seed = NULL;
    }
    dst->nid = src->nid;
    dst->pcounter = src->pcounter;
    dst->h = src->h;
    dst->gindex = src->gindex;
    dst->flags = src->flags;
    dst->keylength = src->keylength;
    return 1;
}

int ossl_ffc_params_cmp(const FFC_PARAMS *a, const FFC_PARAMS *b, int ignore_q)
{
    return BN_cmp(a->p, b->p) == 0
        && BN_cmp(a->g, b->g) == 0
        && (ignore_q || BN_cmp(a->q, b->q) == 0); /* Note: q may be NULL */
}

int ossl_ffc_params_todata(const FFC_PARAMS *ffc, OSSL_PARAM_BLD *bld,
    OSSL_PARAM params[])
{
    int test_flags;

    if (ffc->p != NULL
        && !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_P, ffc->p))
        return 0;
    if (ffc->q != NULL
        && !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_Q, ffc->q))
        return 0;
    if (ffc->g != NULL
        && !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_G, ffc->g))
        return 0;
    if (ffc->j != NULL
        && !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_COFACTOR,
            ffc->j))
        return 0;
    if (!ossl_param_build_set_int(bld, params, OSSL_PKEY_PARAM_FFC_GINDEX,
            ffc->gindex))
        return 0;
    if (!ossl_param_build_set_int(bld, params, OSSL_PKEY_PARAM_FFC_PCOUNTER,
            ffc->pcounter))
        return 0;
    if (!ossl_param_build_set_int(bld, params, OSSL_PKEY_PARAM_FFC_H, ffc->h))
        return 0;
    if (ffc->seed != NULL
        && !ossl_param_build_set_octet_string(bld, params,
            OSSL_PKEY_PARAM_FFC_SEED,
            ffc->seed, ffc->seedlen))
        return 0;
    if (ffc->nid != NID_undef) {
        const DH_NAMED_GROUP *group = ossl_ffc_uid_to_dh_named_group(ffc->nid);
        const char *name = ossl_ffc_named_group_get_name(group);

        if (name == NULL
            || !ossl_param_build_set_utf8_string(bld, params,
                OSSL_PKEY_PARAM_GROUP_NAME,
                name))
            return 0;
    }
    test_flags = ((ffc->flags & FFC_PARAM_FLAG_VALIDATE_PQ) != 0);
    if (!ossl_param_build_set_int(bld, params,
            OSSL_PKEY_PARAM_FFC_VALIDATE_PQ, test_flags))
        return 0;
    test_flags = ((ffc->flags & FFC_PARAM_FLAG_VALIDATE_G) != 0);
    if (!ossl_param_build_set_int(bld, params,
            OSSL_PKEY_PARAM_FFC_VALIDATE_G, test_flags))
        return 0;
    test_flags = ((ffc->flags & FFC_PARAM_FLAG_VALIDATE_LEGACY) != 0);
    if (!ossl_param_build_set_int(bld, params,
            OSSL_PKEY_PARAM_FFC_VALIDATE_LEGACY,
            test_flags))
        return 0;

    if (ffc->mdname != NULL
        && !ossl_param_build_set_utf8_string(bld, params,
            OSSL_PKEY_PARAM_FFC_DIGEST,
            ffc->mdname))
        return 0;
    if (ffc->mdprops != NULL
        && !ossl_param_build_set_utf8_string(bld, params,
            OSSL_PKEY_PARAM_FFC_DIGEST_PROPS,
            ffc->mdprops))
        return 0;
    return 1;
}

#ifndef FIPS_MODULE
int ossl_ffc_params_print(BIO *bp, const FFC_PARAMS *ffc, int indent)
{
    if (!ASN1_bn_print(bp, "prime P:", ffc->p, NULL, indent))
        goto err;
    if (!ASN1_bn_print(bp, "generator G:", ffc->g, NULL, indent))
        goto err;
    if (ffc->q != NULL
        && !ASN1_bn_print(bp, "subgroup order Q:", ffc->q, NULL, indent))
        goto err;
    if (ffc->j != NULL
        && !ASN1_bn_print(bp, "subgroup factor:", ffc->j, NULL, indent))
        goto err;
    if (ffc->seed != NULL) {
        size_t i;

        if (!BIO_indent(bp, indent, 128)
            || BIO_puts(bp, "seed:") <= 0)
            goto err;
        for (i = 0; i < ffc->seedlen; i++) {
            if ((i % 15) == 0) {
                if (BIO_puts(bp, "\n") <= 0
                    || !BIO_indent(bp, indent + 4, 128))
                    goto err;
            }
            if (BIO_printf(bp, "%02x%s", ffc->seed[i],
                    ((i + 1) == ffc->seedlen) ? "" : ":")
                <= 0)
                goto err;
        }
        if (BIO_write(bp, "\n", 1) <= 0)
            return 0;
    }
    if (ffc->pcounter != -1) {
        if (!BIO_indent(bp, indent, 128)
            || BIO_printf(bp, "counter: %d\n", ffc->pcounter) <= 0)
            goto err;
    }
    return 1;
err:
    return 0;
}
#endif /* FIPS_MODULE */

Coverage Report

Created: 2025-12-31 06:58

Line	Count	Source
1		/*
2		* Copyright 2019-2024 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
5		* this file except in compliance with the License. You can obtain a copy
6		* in the file LICENSE in the source distribution or at
7		* https://www.openssl.org/source/license.html
8		*/
9
10		#include <string.h> /* memset */
11		#include <openssl/core_names.h>
12		#include "internal/ffc.h"
13		#include "internal/param_build_set.h"
14		#include "internal/nelem.h"
15
16		#ifndef FIPS_MODULE
17		#include <openssl/asn1.h> /* ossl_ffc_params_print */
18		#endif
19
20		void ossl_ffc_params_init(FFC_PARAMS *params)
21	1.86M	{
22	1.86M	memset(params, 0, sizeof(*params));
23	1.86M	params->pcounter = -1;
24	1.86M	params->gindex = FFC_UNVERIFIABLE_GINDEX;
25	1.86M	params->flags = FFC_PARAM_FLAG_VALIDATE_PQG;
26	1.86M	}
27
28		void ossl_ffc_params_cleanup(FFC_PARAMS *params)
29	935k	{
30		#ifdef OPENSSL_PEDANTIC_ZEROIZATION
31		BN_clear_free(params->p);
32		BN_clear_free(params->q);
33		BN_clear_free(params->g);
34		BN_clear_free(params->j);
35		OPENSSL_clear_free(params->seed, params->seedlen);
36		#else
37	935k	BN_free(params->p);
38	935k	BN_free(params->q);
39	935k	BN_free(params->g);
40	935k	BN_free(params->j);
41	935k	OPENSSL_free(params->seed);
42	935k	#endif
43	935k	ossl_ffc_params_init(params);
44	935k	}
45
46		void ossl_ffc_params_set0_pqg(FFC_PARAMS d, BIGNUM p, BIGNUM q, BIGNUM g)
47	148k	{
48	148k	if (p != NULL && p != d->p) {
49	148k	BN_free(d->p);
50	148k	d->p = p;
51	148k	}
52	148k	if (q != NULL && q != d->q) {
53	137k	BN_free(d->q);
54	137k	d->q = q;
55	137k	}
56	148k	if (g != NULL && g != d->g) {
57	148k	BN_free(d->g);
58	148k	d->g = g;
59	148k	}
60	148k	}
61
62		void ossl_ffc_params_get0_pqg(const FFC_PARAMS d, const BIGNUM *p,
63		const BIGNUM q, const BIGNUM g)
64	83.8k	{
65	83.8k	if (p != NULL)
66	83.8k	*p = d->p;
67	83.8k	if (q != NULL)
68	72.3k	*q = d->q;
69	83.8k	if (g != NULL)
70	72.3k	*g = d->g;
71	83.8k	}
72
73		/* j is the 'cofactor' that is optionally output for ASN1. */
74		void ossl_ffc_params_set0_j(FFC_PARAMS d, BIGNUM j)
75	144k	{
76	144k	BN_free(d->j);
77	144k	d->j = NULL;
78	144k	if (j != NULL)
79	7.86k	d->j = j;
80	144k	}
81
82		int ossl_ffc_params_set_seed(FFC_PARAMS *params,
83		const unsigned char *seed, size_t seedlen)
84	4.70k	{
85	4.70k	if (params->seed != NULL) {
86	0	if (params->seed == seed)
87	0	return 1;
88	0	OPENSSL_free(params->seed);
89	0	}
90
91	4.70k	if (seed != NULL && seedlen > 0) {
92	355	params->seed = OPENSSL_memdup(seed, seedlen);
93	355	if (params->seed == NULL)
94	0	return 0;
95	355	params->seedlen = seedlen;
96	4.34k	} else {
97	4.34k	params->seed = NULL;
98	4.34k	params->seedlen = 0;
99	4.34k	}
100	4.70k	return 1;
101	4.70k	}
102
103		void ossl_ffc_params_set_gindex(FFC_PARAMS *params, int index)
104	0	{
105	0	params->gindex = index;
106	0	}
107
108		void ossl_ffc_params_set_pcounter(FFC_PARAMS *params, int index)
109	0	{
110	0	params->pcounter = index;
111	0	}
112
113		void ossl_ffc_params_set_h(FFC_PARAMS *params, int index)
114	0	{
115	0	params->h = index;
116	0	}
117
118		void ossl_ffc_params_set_flags(FFC_PARAMS *params, unsigned int flags)
119	0	{
120	0	params->flags = flags;
121	0	}
122
123		void ossl_ffc_params_enable_flags(FFC_PARAMS *params, unsigned int flags,
124		int enable)
125	159k	{
126	159k	if (enable)
127	102k	params->flags \|= flags;
128	56.6k	else
129	56.6k	params->flags &= ~flags;
130	159k	}
131
132		void ossl_ffc_set_digest(FFC_PARAMS params, const char alg, const char *props)
133	0	{
134	0	params->mdname = alg;
135	0	params->mdprops = props;
136	0	}
137
138		int ossl_ffc_params_set_validate_params(FFC_PARAMS *params,
139		const unsigned char *seed,
140		size_t seedlen, int counter)
141	437	{
142	437	if (!ossl_ffc_params_set_seed(params, seed, seedlen))
143	0	return 0;
144	437	params->pcounter = counter;
145	437	return 1;
146	437	}
147
148		void ossl_ffc_params_get_validate_params(const FFC_PARAMS *params,
149		unsigned char *seed, size_t seedlen,
150		int *pcounter)
151	399	{
152	399	if (seed != NULL)
153	399	*seed = params->seed;
154	399	if (seedlen != NULL)
155	399	*seedlen = params->seedlen;
156	399	if (pcounter != NULL)
157	399	*pcounter = params->pcounter;
158	399	}
159
160		static int ffc_bn_cpy(BIGNUM *dst, const BIGNUM src)
161	78.2k	{
162	78.2k	BIGNUM *a;
163
164		/*
165		* If source is read only just copy the pointer, so
166		* we don't have to reallocate it.
167		*/
168	78.2k	if (src == NULL)
169	25.3k	a = NULL;
170	52.9k	else if (BN_get_flags(src, BN_FLG_STATIC_DATA)
171	3.08k	&& !BN_get_flags(src, BN_FLG_MALLOCED))
172	3.08k	a = (BIGNUM *)src;
173	49.8k	else if ((a = BN_dup(src)) == NULL)
174	0	return 0;
175	78.2k	BN_clear_free(*dst);
176	78.2k	*dst = a;
177	78.2k	return 1;
178	78.2k	}
179
180		int ossl_ffc_params_copy(FFC_PARAMS dst, const FFC_PARAMS src)
181	19.5k	{
182	19.5k	if (!ffc_bn_cpy(&dst->p, src->p)
183	19.5k	\|\| !ffc_bn_cpy(&dst->g, src->g)
184	19.5k	\|\| !ffc_bn_cpy(&dst->q, src->q)
185	19.5k	\|\| !ffc_bn_cpy(&dst->j, src->j))
186	0	return 0;
187
188	19.5k	dst->mdname = src->mdname;
189	19.5k	dst->mdprops = src->mdprops;
190	19.5k	OPENSSL_free(dst->seed);
191	19.5k	dst->seedlen = src->seedlen;
192	19.5k	if (src->seed != NULL) {
193	220	dst->seed = OPENSSL_memdup(src->seed, src->seedlen);
194	220	if (dst->seed == NULL)
195	0	return 0;
196	19.3k	} else {
197	19.3k	dst->seed = NULL;
198	19.3k	}
199	19.5k	dst->nid = src->nid;
200	19.5k	dst->pcounter = src->pcounter;
201	19.5k	dst->h = src->h;
202	19.5k	dst->gindex = src->gindex;
203	19.5k	dst->flags = src->flags;
204	19.5k	dst->keylength = src->keylength;
205	19.5k	return 1;
206	19.5k	}
207
208		int ossl_ffc_params_cmp(const FFC_PARAMS a, const FFC_PARAMS b, int ignore_q)
209	111k	{
210	111k	return BN_cmp(a->p, b->p) == 0
211	111k	&& BN_cmp(a->g, b->g) == 0
212	111k	&& (ignore_q \|\| BN_cmp(a->q, b->q) == 0); /* Note: q may be NULL */
213	111k	}
214
215		int ossl_ffc_params_todata(const FFC_PARAMS ffc, OSSL_PARAM_BLD bld,
216		OSSL_PARAM params[])
217	181k	{
218	181k	int test_flags;
219
220	181k	if (ffc->p != NULL
221	181k	&& !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_P, ffc->p))
222	0	return 0;
223	181k	if (ffc->q != NULL
224	159k	&& !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_Q, ffc->q))
225	0	return 0;
226	181k	if (ffc->g != NULL
227	181k	&& !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_G, ffc->g))
228	0	return 0;
229	181k	if (ffc->j != NULL
230	6.85k	&& !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_COFACTOR,
231	6.85k	ffc->j))
232	0	return 0;
233	181k	if (!ossl_param_build_set_int(bld, params, OSSL_PKEY_PARAM_FFC_GINDEX,
234	181k	ffc->gindex))
235	0	return 0;
236	181k	if (!ossl_param_build_set_int(bld, params, OSSL_PKEY_PARAM_FFC_PCOUNTER,
237	181k	ffc->pcounter))
238	0	return 0;
239	181k	if (!ossl_param_build_set_int(bld, params, OSSL_PKEY_PARAM_FFC_H, ffc->h))
240	0	return 0;
241	181k	if (ffc->seed != NULL
242	434	&& !ossl_param_build_set_octet_string(bld, params,
243	434	OSSL_PKEY_PARAM_FFC_SEED,
244	434	ffc->seed, ffc->seedlen))
245	0	return 0;
246	181k	if (ffc->nid != NID_undef) {
247	2.86k	const DH_NAMED_GROUP *group = ossl_ffc_uid_to_dh_named_group(ffc->nid);
248	2.86k	const char *name = ossl_ffc_named_group_get_name(group);
249
250	2.86k	if (name == NULL
251	2.86k	\|\| !ossl_param_build_set_utf8_string(bld, params,
252	2.86k	OSSL_PKEY_PARAM_GROUP_NAME,
253	2.86k	name))
254	0	return 0;
255	2.86k	}
256	181k	test_flags = ((ffc->flags & FFC_PARAM_FLAG_VALIDATE_PQ) != 0);
257	181k	if (!ossl_param_build_set_int(bld, params,
258	181k	OSSL_PKEY_PARAM_FFC_VALIDATE_PQ, test_flags))
259	0	return 0;
260	181k	test_flags = ((ffc->flags & FFC_PARAM_FLAG_VALIDATE_G) != 0);
261	181k	if (!ossl_param_build_set_int(bld, params,
262	181k	OSSL_PKEY_PARAM_FFC_VALIDATE_G, test_flags))
263	0	return 0;
264	181k	test_flags = ((ffc->flags & FFC_PARAM_FLAG_VALIDATE_LEGACY) != 0);
265	181k	if (!ossl_param_build_set_int(bld, params,
266	181k	OSSL_PKEY_PARAM_FFC_VALIDATE_LEGACY,
267	181k	test_flags))
268	0	return 0;
269
270	181k	if (ffc->mdname != NULL
271	0	&& !ossl_param_build_set_utf8_string(bld, params,
272	0	OSSL_PKEY_PARAM_FFC_DIGEST,
273	0	ffc->mdname))
274	0	return 0;
275	181k	if (ffc->mdprops != NULL
276	0	&& !ossl_param_build_set_utf8_string(bld, params,
277	0	OSSL_PKEY_PARAM_FFC_DIGEST_PROPS,
278	0	ffc->mdprops))
279	0	return 0;
280	181k	return 1;
281	181k	}
282
283		#ifndef FIPS_MODULE
284		int ossl_ffc_params_print(BIO bp, const FFC_PARAMS ffc, int indent)
285	115	{
286	115	if (!ASN1_bn_print(bp, "prime P:", ffc->p, NULL, indent))
287	0	goto err;
288	115	if (!ASN1_bn_print(bp, "generator G:", ffc->g, NULL, indent))
289	0	goto err;
290	115	if (ffc->q != NULL
291	115	&& !ASN1_bn_print(bp, "subgroup order Q:", ffc->q, NULL, indent))
292	0	goto err;
293	115	if (ffc->j != NULL
294	0	&& !ASN1_bn_print(bp, "subgroup factor:", ffc->j, NULL, indent))
295	0	goto err;
296	115	if (ffc->seed != NULL) {
297	0	size_t i;
298
299	0	if (!BIO_indent(bp, indent, 128)
300	0	\|\| BIO_puts(bp, "seed:") <= 0)
301	0	goto err;
302	0	for (i = 0; i < ffc->seedlen; i++) {
303	0	if ((i % 15) == 0) {
304	0	if (BIO_puts(bp, "\n") <= 0
305	0	\|\| !BIO_indent(bp, indent + 4, 128))
306	0	goto err;
307	0	}
308	0	if (BIO_printf(bp, "%02x%s", ffc->seed[i],
309	0	((i + 1) == ffc->seedlen) ? "" : ":")
310	0	<= 0)
311	0	goto err;
312	0	}
313	0	if (BIO_write(bp, "\n", 1) <= 0)
314	0	return 0;
315	0	}
316	115	if (ffc->pcounter != -1) {
317	0	if (!BIO_indent(bp, indent, 128)
318	0	\|\| BIO_printf(bp, "counter: %d\n", ffc->pcounter) <= 0)
319	0	goto err;
320	0	}
321	115	return 1;
322	0	err:
323	0	return 0;
324	115	}
325		#endif /* FIPS_MODULE */