Pass RandomNumberGenerator references to public key operations that need

them (encrypt and sign), with the intent of slowly bubbling up the access
points to the API level, at which point the application handles managing
the RNG. This will allow removing the compiled-in global PRNG, and
make testing much simpler.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/dsa.cpp b/src/dsa.cpp
index 1d755e045..4438ce4d5 100644
--- a/src/dsa.cpp
+++ b/src/dsa.cpp
@@ -97,13 +97,14 @@ void DSA_PrivateKey::PKCS8_load_hook(bool generated)
 /*************************************************
 * DSA Signature Operation                        *
 *************************************************/
-SecureVector<byte> DSA_PrivateKey::sign(const byte in[], u32bit length) const
+SecureVector<byte> DSA_PrivateKey::sign(const byte in[], u32bit length,
+                                        RandomNumberGenerator& rng) const
    {
    const BigInt& q = group_q();
 
    BigInt k;
    do
-      k.randomize(global_state().prng_reference(), q.bits());
+      k.randomize(rng, q.bits());
    while(k >= q);
 
    return core.sign(in, length, k);