(asn1_der_get_bignum): Declare function.

Rev: src/nettle/bignum.h:1.9

bignum.h

@@ -78,6 +78,7 @@ nettle_mpz_random(mpz_t x,
 		  void *ctx, nettle_random_func random,
 		  const mpz_t n);
 
+/* sexp parsing */
 struct sexp_iterator;
 
 /* If LIMIT is non-zero, the number must be at most LIMIT bits.
@@ -85,4 +86,12 @@ struct sexp_iterator;
 int
 nettle_mpz_set_sexp(mpz_t x, unsigned limit, struct sexp_iterator *i);
 
+
+/* der parsing */
+struct asn1_der_iterator;
+
+int
+asn1_der_get_bignum(struct asn1_der_iterator *iterator,
+		    mpz_t x, unsigned limit);
+
 #endif /* NETTLE_BIGNUM_H_INCLUDED */