Add a variant of RandomNumberGenerator::random_vec

This avoids the unlock(rng.random_vec(...)) pattern which is
pretty wasteful in terms of heap overhead.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/tests/test_srp6.cpp b/src/tests/test_srp6.cpp
index a25d857a2..8c84709cd 100644
--- a/src/tests/test_srp6.cpp
+++ b/src/tests/test_srp6.cpp
@@ -103,7 +103,8 @@ class SRP6_RT_Tests final : public Test
          const std::string group_id = "modp/srp/1024";
          const std::string hash_id = "SHA-256";
 
-         const std::vector<uint8_t> salt = unlock(Test::rng().random_vec(16));
+         std::vector<uint8_t> salt;
+         Test::rng().random_vec(salt, 16);
 
          const Botan::BigInt verifier = Botan::generate_srp6_verifier(username, password, salt, group_id, hash_id);