generic-library/openssl
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Minor clarity enhancements.

Browse Source
This commit is contained in:
Ben Laurie 2008-10-26 15:37:31 +00:00
parent 7471431322
commit 3b668eedda
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
demos/jpake/jpakedemo.c
View File

@ -164,7 +164,8 @@ static void zkpHash(BIGNUM *h, const JPakeZKP *zkp, const BIGNUM *gx,
// Prove knowledge of x
// Note that we don't send g^x because, as it happens, we've always
// sent it elsewhere. Also note that because of that, we could avoid calculating it here, but we don't, for clarity...
// sent it elsewhere. Also note that because of that, we could avoid
// calculating it here, but we don't, for clarity...
static void CreateZKP(JPakeZKP *zkp, const BIGNUM *x, const JPakeUser *us,
const BIGNUM *zkpg, const JPakeParameters *params,
int n, const char *suffix)
@ -205,7 +206,7 @@ static void CreateZKP(JPakeZKP *zkp, const BIGNUM *x, const JPakeUser *us,
BN_free(r);
}
static int VerifyZKP(const JPakeZKP *zkp, BIGNUM *x,
static int VerifyZKP(const JPakeZKP *zkp, BIGNUM *gx,
const JPakeUserPublic *them, const BIGNUM *zkpg,
const JPakeParameters *params, int n, const char *suffix)
{
@ -215,12 +216,12 @@ static int VerifyZKP(const JPakeZKP *zkp, BIGNUM *x,
BIGNUM *t3 = BN_new();
int ret = 0;
zkpHash(h, zkp, x, them, params);
zkpHash(h, zkp, gx, them, params);
// t1 = g^b
BN_mod_exp(t1, zkpg, zkp->b, params->p, params->ctx);
// t2 = (g^x)^h = g^{hx}
BN_mod_exp(t2, x, h, params->p, params->ctx);
BN_mod_exp(t2, gx, h, params->p, params->ctx);
// t3 = t1 * t2 = g^{hx} * g^b = g^{hx+b} = g^r (allegedly)
BN_mod_mul(t3, t1, t2, params->p, params->ctx);