crypto: revert odd namespace changes made in #3303

src/crypto/crypto.cpp

@@ -436,7 +436,7 @@ namespace crypto {
     return sc_isnonzero(&c2) == 0;
   }
 
-  void crypto_ops::hash_to_ec(const public_key &key, ge_p3 &res) {
+  static void hash_to_ec(const public_key &key, ge_p3 &res) {
     hash h;
     ge_p2 point;
     ge_p1p1 point2;

src/crypto/crypto.h

@@ -46,9 +46,6 @@
 #include "hex.h"
 #include "span.h"
 #include "hash.h"
-extern "C" {
-  #include "crypto-ops.h"
-}
 
 namespace crypto {
 
@@ -116,9 +113,6 @@ namespace crypto {
     void operator=(const crypto_ops &);
     ~crypto_ops();
 
-    static void hash_to_ec(const public_key &key, ge_p3 &res) ;
-    friend void hash_to_ec(const public_key &key, ge_p3 &res) ;
-
     static secret_key generate_keys(public_key &pub, secret_key &sec, const secret_key& recovery_key = secret_key(), bool recover = false);
     friend secret_key generate_keys(public_key &pub, secret_key &sec, const secret_key& recovery_key, bool recover);
     static bool check_key(const public_key &);
@@ -172,9 +166,6 @@ namespace crypto {
     return res;
   }
 
-  inline void hash_to_ec(const public_key &key, ge_p3 &res) {
-    crypto_ops::hash_to_ec(key,res);
-  }
   /* Generate a new key pair
    */
   inline secret_key generate_keys(public_key &pub, secret_key &sec, const secret_key& recovery_key = secret_key(), bool recover = false) {

tests/crypto/crypto.cpp

@@ -33,7 +33,7 @@
 #include "crypto-tests.h"
 
 bool check_scalar(const crypto::ec_scalar &scalar) {
-  return sc_check(crypto::operator &(scalar)) == 0;
+  return crypto::sc_check(crypto::operator &(scalar)) == 0;
 }
 
 void random_scalar(crypto::ec_scalar &res) {
@@ -45,13 +45,13 @@ void hash_to_scalar(const void *data, std::size_t length, crypto::ec_scalar &res
 }
 
 void hash_to_point(const crypto::hash &h, crypto::ec_point &res) {
-  ge_p2 point;
-  ge_fromfe_frombytes_vartime(&point, reinterpret_cast<const unsigned char *>(&h));
-  ge_tobytes(crypto::operator &(res), &point);
+  crypto::ge_p2 point;
+  crypto::ge_fromfe_frombytes_vartime(&point, reinterpret_cast<const unsigned char *>(&h));
+  crypto::ge_tobytes(crypto::operator &(res), &point);
 }
 
 void hash_to_ec(const crypto::public_key &key, crypto::ec_point &res) {
-  ge_p3 tmp;
+  crypto::ge_p3 tmp;
   crypto::hash_to_ec(key, tmp);
-  ge_p3_tobytes(crypto::operator &(res), &tmp);
+  crypto::ge_p3_tobytes(crypto::operator &(res), &tmp);
 }