2 files changed, 15 insertions, 18 deletions

diff --git a/src/lib/constructs/srp6/srp6.cpp b/src/lib/constructs/srp6/srp6.cpp
index 678dc8978..fba7fa326 100644
--- a/src/lib/constructs/srp6/srp6.cpp
+++ b/src/lib/constructs/srp6/srp6.cpp
@@ -131,32 +131,29 @@ BigInt SRP6_Server_Session::step1(const BigInt& v,
    const BigInt& g = group.get_g();
    const BigInt& p = group.get_p();
 
-   p_bytes = p.bytes();
+   m_p_bytes = p.bytes();
+   m_v = v;
+   m_b = BigInt(rng, 256);
+   m_p = p;
+   m_hash_id = hash_id;
 
-   BigInt k = hash_seq(hash_id, p_bytes, p, g);
-
-   BigInt b(rng, 256);
+   const BigInt k = hash_seq(hash_id, m_p_bytes, p, g);
 
-   B = (v*k + power_mod(g, b, p)) % p;
+   m_B = (v*k + power_mod(g, m_b, p)) % p;
 
-   this->v = v;
-   this->b = b;
-   this->p = p;
-   this->hash_id = hash_id;
-
-   return B;
+   return m_B;
    }
 
 SymmetricKey SRP6_Server_Session::step2(const BigInt& A)
    {
-   if(A <= 0 || A >= p)
+   if(A <= 0 || A >= m_p)
       throw std::runtime_error("Invalid SRP parameter from client");
 
-   BigInt u = hash_seq(hash_id, p_bytes, A, B);
+   const BigInt u = hash_seq(m_hash_id, m_p_bytes, A, m_B);
 
-   BigInt S = power_mod(A * power_mod(v, u, p), b, p);
+   const BigInt S = power_mod(A * power_mod(m_v, u, m_p), m_b, m_p);
 
-   return BigInt::encode_1363(S, p_bytes);
+   return BigInt::encode_1363(S, m_p_bytes);
    }
 
 }
diff --git a/src/lib/constructs/srp6/srp6.h b/src/lib/constructs/srp6/srp6.h
index 6f3960be1..b0adc5da4 100644
--- a/src/lib/constructs/srp6/srp6.h
+++ b/src/lib/constructs/srp6/srp6.h
@@ -87,9 +87,9 @@ class BOTAN_DLL SRP6_Server_Session
       SymmetricKey step2(const BigInt& A);
 
    private:
-      std::string hash_id;
-      BigInt B, b, v, S, p;
-      size_t p_bytes;
+      std::string m_hash_id;
+      BigInt m_B, m_b, m_v, m_S, m_p;
+      size_t m_p_bytes;
    };
 
 }