Commit 0547bb02e27962e7db7b5b49257ed9c2b1f0a33a - libcryptx-perl

+6

-0

src/ltc/headers/tomcrypt_pk.h less more

5	5	PK_PUBLIC_COMPRESSED=2 /* used only when exporting public ECC key */
6	6	};
7	7
	8	typedef struct rand_helper {
	9	prng_state *prng;
	10	int wprng;
	11	} rand_helper_st;
	12
	13	int rand_helper(unsigned char dst, int len, void dat);
8	14	int rand_prime(void N, long len, prng_state prng, int wprng);
9	15	int rand_bn_bits(void N, int bits, prng_state prng, int wprng);
10	16	int rand_bn_range(void N, void limit, prng_state *prng, int wprng);

+4

-9

src/ltc/math/rand_prime.c less more

16	16
17	17	#define USE_BBS 1
18	18
19		struct rng_data {
20		prng_state *prng;
21		int wprng;
22		};
23
24		static int rand_prime_helper(unsigned char dst, int len, void dat)
	19	int rand_helper(unsigned char dst, int len, void dat)
25	20	{
26		return (int)prng_descriptor[((struct rng_data )dat)->wprng].read(dst, len, ((struct rng_data )dat)->prng);
	21	return (int)prng_descriptor[((rand_helper_st )dat)->wprng].read(dst, len, ((rand_helper_st )dat)->prng);
27	22	}
28	23
29	24	int rand_prime(void N, long len, prng_state prng, int wprng)
30	25	{
31	26	int err, res, type;
32	27	unsigned char *buf;
33		struct rng_data rng;
	28	rand_helper_st rng;
34	29
35	30	LTC_ARGCHK(N != NULL);
36	31

80	75	}
81	76
82	77	/* test */
83		if ((err = mp_prime_is_prime_ex(N, 0, &res, rand_prime_helper, &rng)) != CRYPT_OK) {
	78	if ((err = mp_prime_is_prime_ex(N, 0, &res, rand_helper, &rng)) != CRYPT_OK) {
84	79	XFREE(buf);
85	80	return err;
86	81	}

+3

-13

src/ltc/pk/dsa/dsa_make_key.c less more

16	16
17	17	#ifdef LTC_MDSA
18	18
19		struct rng_data {
20		prng_state *prng;
21		int wprng;
22		};
23
24		static int rng_helper(unsigned char dst, int len, void dat)
25		{
26		return (int)prng_descriptor[((struct rng_data )dat)->wprng].read(dst, len, ((struct rng_data )dat)->prng);
27		}
28
29	19	/**
30	20	Create DSA parameters
31	21	@param prng An active PRNG state

43	33	int err, res, mr_tests_q, mr_tests_p, found_p, found_q, hash;
44	34	unsigned char wbuf, sbuf, digest[MAXBLOCKSIZE];
45	35	void t2L1, t2N1, t2q, t2seedlen, U, W, X, c, h, e, *seedinc;
46		struct rng_data rng;
	36	rand_helper_st rng;
47	37
48	38	/* check prng */
49	39	if ((err = prng_is_valid(wprng)) != CRYPT_OK) {

143	133	if ((err = mp_mod(U, t2N1, U)) != CRYPT_OK) { goto cleanup; }
144	134	if ((err = mp_add(t2N1, U, q)) != CRYPT_OK) { goto cleanup; }
145	135	if (!mp_isodd(q)) mp_add_d(q, 1, q);
146		err = mp_prime_is_prime_ex(q, mr_tests_q, &res, rng_helper, &rng);
	136	err = mp_prime_is_prime_ex(q, mr_tests_q, &res, rand_helper, &rng);
147	137	if (err != CRYPT_OK) { goto cleanup; }
148	138	if (res == LTC_MP_YES) found_q = 1;
149	139	}

172	162	if ((err = mp_sub(X, p, p)) != CRYPT_OK) { goto cleanup; }
173	163	if (mp_cmp(p, t2L1) != LTC_MP_LT) {
174	164	/* p >= 2^(L-1) */
175		err = mp_prime_is_prime_ex(p, mr_tests_p, &res, rng_helper, &rng);
	165	err = mp_prime_is_prime_ex(p, mr_tests_p, &res, rand_helper, &rng);
176	166	if (err != CRYPT_OK) { goto cleanup; }
177	167	if (res == LTC_MP_YES) found_p = 1;
178	168	}