1 files changed, 13 insertions, 11 deletions
diff --git a/src/mac/ssl3mac/ssl3_mac.cpp b/src/mac/ssl3mac/ssl3_mac.cpp
index a07622eb3..8979d1291 100644
--- a/src/mac/ssl3mac/ssl3_mac.cpp
+++ b/src/mac/ssl3mac/ssl3_mac.cpp
@@ -35,11 +35,20 @@ void SSL3_MAC::final_result(byte mac[])
 void SSL3_MAC::key_schedule(const byte key[], size_t length)
    {
    hash->clear();
+
+   // Quirk to deal with specification bug
+   const size_t inner_hash_length =
+      (hash->name() == "SHA-160") ? 60 : hash->hash_block_size();
+
+   i_key.resize(inner_hash_length);
+   o_key.resize(inner_hash_length);
+
    std::fill(i_key.begin(), i_key.end(), 0x36);
    std::fill(o_key.begin(), o_key.end(), 0x5C);
 
-   i_key.copy(key, length);
-   o_key.copy(key, length);
+   copy_mem(&i_key[0], key, length);
+   copy_mem(&o_key[0], key, length);
+
    hash->update(i_key);
    }
 
@@ -49,8 +58,8 @@ void SSL3_MAC::key_schedule(const byte key[], size_t length)
 void SSL3_MAC::clear()
    {
    hash->clear();
-   zeroise(i_key);
-   zeroise(o_key);
+   i_key.clear();
+   o_key.clear();
    }
 
 /*
@@ -76,13 +85,6 @@ SSL3_MAC::SSL3_MAC(HashFunction* hash_in) : hash(hash_in)
    {
    if(hash->hash_block_size() == 0)
       throw Invalid_Argument("SSL3-MAC cannot be used with " + hash->name());
-
-   // Quirk to deal with specification bug
-   const size_t INNER_HASH_LENGTH =
-      (hash->name() == "SHA-160") ? 60 : hash->hash_block_size();
-
-   i_key.resize(INNER_HASH_LENGTH);
-   o_key.resize(INNER_HASH_LENGTH);
    }
 
 }