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| author | Bodo Möller <bodo@openssl.org> | 2001-02-10 00:34:02 +0000 |
|---|---|---|
| committer | Bodo Möller <bodo@openssl.org> | 2001-02-10 00:34:02 +0000 |
| commit | e306892994a0f189089916d2ea66b3bdc0b2d777 (patch) | |
| tree | 94199007669d4e72e954df3615b86bae9a3c742c | |
| parent | 836f996010d6a5f38d9a13279c37e84a42819966 (diff) | |
| download | openssl-e306892994a0f189089916d2ea66b3bdc0b2d777.tar.gz | |
Simplify BN_rand_range
| -rw-r--r-- | crypto/bn/bn.h | 2 | ||||
| -rw-r--r-- | crypto/bn/bn_rand.c | 10 | ||||
| -rw-r--r-- | crypto/dsa/dsa_ossl.c | 2 | ||||
| -rw-r--r-- | doc/crypto/BN_rand.pod | 5 | ||||
| -rw-r--r-- | doc/crypto/bn.pod | 2 |
5 files changed, 8 insertions, 13 deletions
diff --git a/crypto/bn/bn.h b/crypto/bn/bn.h index 8b2b970995..e2a17a0877 100644 --- a/crypto/bn/bn.h +++ b/crypto/bn/bn.h @@ -329,7 +329,7 @@ BIGNUM *BN_CTX_get(BN_CTX *ctx); void BN_CTX_end(BN_CTX *ctx); int BN_rand(BIGNUM *rnd, int bits, int top,int bottom); int BN_pseudo_rand(BIGNUM *rnd, int bits, int top,int bottom); -int BN_rand_range(BIGNUM *rnd, BIGNUM *min, BIGNUM *range); +int BN_rand_range(BIGNUM *rnd, BIGNUM *range); int BN_num_bits(const BIGNUM *a); int BN_num_bits_word(BN_ULONG); BIGNUM *BN_new(void); diff --git a/crypto/bn/bn_rand.c b/crypto/bn/bn_rand.c index c5c14130a3..54d622e6b4 100644 --- a/crypto/bn/bn_rand.c +++ b/crypto/bn/bn_rand.c @@ -169,8 +169,9 @@ int BN_bntest_rand(BIGNUM *rnd, int bits, int top, int bottom) } #endif -/* random number r: min <= r < min+range */ -int BN_rand_range(BIGNUM *r, BIGNUM *min, BIGNUM *range) + +/* random number r: 0 <= r < range */ +int BN_rand_range(BIGNUM *r, BIGNUM *range) { int n; @@ -217,10 +218,5 @@ int BN_rand_range(BIGNUM *r, BIGNUM *min, BIGNUM *range) while (BN_cmp(r, range) >= 0); } - if (min != NULL) - { - if (!BN_add(r, r, min)) return 0; - } - return 1; } diff --git a/crypto/dsa/dsa_ossl.c b/crypto/dsa/dsa_ossl.c index 1967290baf..7346817337 100644 --- a/crypto/dsa/dsa_ossl.c +++ b/crypto/dsa/dsa_ossl.c @@ -181,7 +181,7 @@ static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp) /* Get random k */ do - if (!BN_rand_range(&k, NULL, dsa->q)) goto err; + if (!BN_rand_range(&k, dsa->q)) goto err; while (BN_is_zero(&k)); if ((dsa->method_mont_p == NULL) && (dsa->flags & DSA_FLAG_CACHE_MONT_P)) diff --git a/doc/crypto/BN_rand.pod b/doc/crypto/BN_rand.pod index e4c94e3d12..2a8bed5fed 100644 --- a/doc/crypto/BN_rand.pod +++ b/doc/crypto/BN_rand.pod @@ -12,7 +12,7 @@ BN_rand, BN_pseudo_rand - generate pseudo-random number int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom); - int BN_rand_range(BIGNUM *rnd, BIGNUM *min, BIGNUM *range); + int BN_rand_range(BIGNUM *rnd, BIGNUM *range); =head1 DESCRIPTION @@ -28,8 +28,7 @@ non-cryptographic purposes and for certain purposes in cryptographic protocols, but usually not for key generation etc. BN_rand_range() generates a cryptographically strong pseudo-random -number B<rnd> in the range B<min> E<lt>= B<rnd> E<lt> B<min> + B<range>. -B<min> may be NULL, in that case 0 E<lt>= B<rnd> E<lt> B<range>. +number B<rnd> in the range 0 <lt>= B<rnd> E<lt> B<range>. The PRNG must be seeded prior to calling BN_rand() or BN_rand_range(). diff --git a/doc/crypto/bn.pod b/doc/crypto/bn.pod index 8558ccfcd5..f7ce9dfd43 100644 --- a/doc/crypto/bn.pod +++ b/doc/crypto/bn.pod @@ -68,7 +68,7 @@ bn - multiprecision integer arithmetics int BN_rand(BIGNUM *rnd, int bits, int top, int bottom); int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom); - int BN_rand_range(BIGNUM *rnd, BIGNUM *min, BIGNUM *max); + int BN_rand_range(BIGNUM *rnd, BIGNUM *range); BIGNUM *BN_generate_prime(BIGNUM *ret, int bits,int safe, BIGNUM *add, BIGNUM *rem, void (*callback)(int, int, void *), void *cb_arg); |