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authorGeoff Thorpe <geoff@openssl.org>2004-03-25 03:52:04 +0100
committerGeoff Thorpe <geoff@openssl.org>2004-03-25 03:52:04 +0100
commit46ef873f0b3c04b6415cddac5d4a7b27b53cc482 (patch)
treed045819aeac3f9d4665713eb6917a5f351ca9bf9 /engines/e_atalla.c
parentDamn, I was a bit hasty with my fix and hadn't spotted the linker (diff)
downloadopenssl-46ef873f0b3c04b6415cddac5d4a7b27b53cc482.tar.xz
openssl-46ef873f0b3c04b6415cddac5d4a7b27b53cc482.zip
By adding a BN_CTX parameter to the 'rsa_mod_exp' callback, private key
operations no longer require two distinct BN_CTX structures. This may put more "strain" on the current BN_CTX implementation (which has a fixed limit to the number of variables it will hold), but so far this limit is not triggered by any of the tests pass and I will be changing BN_CTX in the near future to avoid this problem anyway. This also changes the default RSA implementation code to use the BN_CTX in favour of initialising some of its variables locally in each function.
Diffstat (limited to 'engines/e_atalla.c')
-rw-r--r--engines/e_atalla.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/engines/e_atalla.c b/engines/e_atalla.c
index 79abc70678..cc6c9695f0 100644
--- a/engines/e_atalla.c
+++ b/engines/e_atalla.c
@@ -86,7 +86,7 @@ static int atalla_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
#ifndef OPENSSL_NO_RSA
/* RSA stuff */
-static int atalla_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
+static int atalla_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
#endif
/* This function is aliased to mod_exp (with the mont stuff dropped). */
static int atalla_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
@@ -502,9 +502,8 @@ err:
}
#ifndef OPENSSL_NO_RSA
-static int atalla_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
+static int atalla_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
{
- BN_CTX *ctx = NULL;
int to_return = 0;
if(!atalla_dso)
@@ -512,8 +511,6 @@ static int atalla_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
ATALLAerr(ATALLA_F_ATALLA_RSA_MOD_EXP,ATALLA_R_NOT_LOADED);
goto err;
}
- if((ctx = BN_CTX_new()) == NULL)
- goto err;
if(!rsa->d || !rsa->n)
{
ATALLAerr(ATALLA_F_ATALLA_RSA_MOD_EXP,ATALLA_R_MISSING_KEY_COMPONENTS);
@@ -521,8 +518,6 @@ static int atalla_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
}
to_return = atalla_mod_exp(r0, I, rsa->d, rsa->n, ctx);
err:
- if(ctx)
- BN_CTX_free(ctx);
return to_return;
}
#endif