By adding a BN_CTX parameter to the 'rsa_mod_exp' callback, private key

[openssl.git] / engines / e_cswift.c

diff --git a/engines/e_cswift.c b/engines/e_cswift.c
index 793aaccb1106df15f0ec184389941de891626b56..cc39cd4947395f55f748bb15ff8f83afdf59ea68 100644 (file)
--- a/engines/e_cswift.c
+++ b/engines/e_cswift.c
@@ -103,7 +103,7 @@ static int cswift_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
 
 #ifndef OPENSSL_NO_RSA
 /* RSA stuff */
-static int cswift_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
+static int cswift_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 cswift_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
@@ -668,13 +668,10 @@ err:
        }
  
 #ifndef OPENSSL_NO_RSA
-static int cswift_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
+static int cswift_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
        {
-       BN_CTX *ctx;
        int to_return = 0;
 
-       if((ctx = BN_CTX_new()) == NULL)
-               goto err;
        if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp)
                {
                CSWIFTerr(CSWIFT_F_CSWIFT_RSA_MOD_EXP,CSWIFT_R_MISSING_KEY_COMPONENTS);
@@ -683,8 +680,6 @@ static int cswift_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
        to_return = cswift_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
                rsa->dmq1, rsa->iqmp, ctx);
 err:
-       if(ctx)
-               BN_CTX_free(ctx);
        return to_return;
        }
 #endif