1 files changed, 10 insertions, 17 deletions
diff --git a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c
index 7d7df9640e..8126fb525f 100644
--- a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c
+++ b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c
@@ -79,22 +79,22 @@ HmacSha1Free (
 }
 
 /**
-  Initializes user-supplied memory pointed by HmacSha1Context as HMAC-SHA1 context for
-  subsequent use.
+  Set user-supplied key for subsequent use. It must be done before any
+  calling to HmacSha1Update().
 
   If HmacSha1Context is NULL, then return FALSE.
 
-  @param[out]  HmacSha1Context  Pointer to HMAC-SHA1 context being initialized.
+  @param[out]  HmacSha1Context  Pointer to HMAC-SHA1 context.
   @param[in]   Key              Pointer to the user-supplied key.
   @param[in]   KeySize          Key size in bytes.
 
-  @retval TRUE   HMAC-SHA1 context initialization succeeded.
-  @retval FALSE  HMAC-SHA1 context initialization failed.
+  @retval TRUE   The Key is set successfully.
+  @retval FALSE  The Key is set unsuccessfully.
 
 **/
 BOOLEAN
 EFIAPI
-HmacSha1Init (
+HmacSha1SetKey (
   OUT  VOID         *HmacSha1Context,
   IN   CONST UINT8  *Key,
   IN   UINTN        KeySize
@@ -107,13 +107,6 @@ HmacSha1Init (
     return FALSE;
   }
 
-  //
-  // OpenSSL HMAC-SHA1 Context Initialization
-  //
-  memset(HmacSha1Context, 0, HMAC_SHA1_CTX_SIZE);
-  if (HMAC_CTX_reset ((HMAC_CTX *)HmacSha1Context) != 1) {
-    return FALSE;
-  }
   if (HMAC_Init_ex ((HMAC_CTX *)HmacSha1Context, Key, (UINT32) KeySize, EVP_sha1(), NULL) != 1) {
     return FALSE;
   }
@@ -160,8 +153,8 @@ HmacSha1Duplicate (
 
   This function performs HMAC-SHA1 digest on a data buffer of the specified size.
   It can be called multiple times to compute the digest of long or discontinuous data streams.
-  HMAC-SHA1 context should be already correctly initialized by HmacSha1Init(), and should not
-  be finalized by HmacSha1Final(). Behavior with invalid context is undefined.
+  HMAC-SHA1 context should be initialized by HmacSha1New(), and should not be finalized by
+  HmacSha1Final(). Behavior with invalid context is undefined.
 
   If HmacSha1Context is NULL, then return FALSE.
 
@@ -211,8 +204,8 @@ HmacSha1Update (
   This function completes HMAC-SHA1 digest computation and retrieves the digest value into
   the specified memory. After this function has been called, the HMAC-SHA1 context cannot
   be used again.
-  HMAC-SHA1 context should be already correctly initialized by HmacSha1Init(), and should
-  not be finalized by HmacSha1Final(). Behavior with invalid HMAC-SHA1 context is undefined.
+  HMAC-SHA1 context should be initialized by HmacSha1New(), and should not be finalized by
+  HmacSha1Final(). Behavior with invalid HMAC-SHA1 context is undefined.
 
   If HmacSha1Context is NULL, then return FALSE.
   If HmacValue is NULL, then return FALSE.