Resolve some MSVC warnings

2 files changed, 6 insertions, 6 deletions

diff --git a/src/lib/pbkdf/argon2/argon2.h b/src/lib/pbkdf/argon2/argon2.h
index e0fe1d83d..e17456676 100644
--- a/src/lib/pbkdf/argon2/argon2.h
+++ b/src/lib/pbkdf/argon2/argon2.h
@@ -28,7 +28,7 @@ class BOTAN_PUBLIC_API(2,11) Argon2 final : public PasswordHash
       * Derive a new key under the current Argon2 parameter set
       */
       void derive_key(uint8_t out[], size_t out_len,
-                      const char* password, const size_t password_len,
+                      const char* password, size_t password_len,
                       const uint8_t salt[], size_t salt_len) const override;
 
       std::string to_string() const override;
diff --git a/src/lib/pbkdf/argon2/argon2pwhash.cpp b/src/lib/pbkdf/argon2/argon2pwhash.cpp
index 5af3c709b..25788c0bb 100644
--- a/src/lib/pbkdf/argon2/argon2pwhash.cpp
+++ b/src/lib/pbkdf/argon2/argon2pwhash.cpp
@@ -19,7 +19,7 @@ Argon2::Argon2(uint8_t family, size_t M, size_t t, size_t p) :
    {}
 
 void Argon2::derive_key(uint8_t output[], size_t output_len,
-                        const char* password, const size_t password_len,
+                        const char* password, size_t password_len,
                         const uint8_t salt[], size_t salt_len) const
    {
    argon2(output, output_len,
@@ -111,17 +111,17 @@ std::unique_ptr<PasswordHash> Argon2_Family::tune(size_t /*output_length*/,
 
    if(est_nsec < target_nsec && M < max_kib)
       {
-      const size_t desired_cost_increase = (target_nsec + est_nsec - 1) / est_nsec;
-      const size_t mem_headroom = max_kib / M;
+      const uint64_t desired_cost_increase = (target_nsec + est_nsec - 1) / est_nsec;
+      const uint64_t mem_headroom = max_kib / M;
 
-      const size_t M_mult = std::min(desired_cost_increase, mem_headroom);
+      const uint64_t M_mult = std::min(desired_cost_increase, mem_headroom);
       M *= M_mult;
       est_nsec *= M_mult;
       }
 
    if(est_nsec < target_nsec)
       {
-      const size_t desired_cost_increase = (target_nsec + est_nsec - 1) / est_nsec;
+      const uint64_t desired_cost_increase = (target_nsec + est_nsec - 1) / est_nsec;
       t *= desired_cost_increase;
       }