- /* compute r = a ^ p mod m. May be NULL */
- int (*bn_mod_exp)(DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx,
- BN_MONT_CTX *m_ctx);
+ /* compute r = a ^ p mod m (May be NULL for some implementations) */
+ int (*bn_mod_exp)(DSA *dsa, BIGNUM *r, BIGNUM *a,
+ const BIGNUM *p, const BIGNUM *m,
+ BN_CTX *ctx, BN_MONT_CTX *m_ctx);