diff --git a/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha1.c b/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha1.c
index 1e071ce2b3..cfe1f4bc44 100644
--- a/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha1.c
+++ b/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha1.c
@@ -204,6 +204,8 @@ Sha1HashAll (
   OUT  UINT8       *HashValue
   )
 {
+  SHA_CTX  Context;
+
   //
   // Check input parameters.
   //
@@ -218,11 +220,19 @@ Sha1HashAll (
   //
   // OpenSSL SHA-1 Hash Computation.
   //
-  if (SHA1 (Data, DataSize, HashValue) == NULL) {
+  if (!SHA1_Init (&Context)) {
     return FALSE;
-  } else {
-    return TRUE;
   }
+
+  if (!SHA1_Update (&Context, Data, DataSize)) {
+    return FALSE;
+  }
+
+  if (!SHA1_Final (HashValue, &Context)) {
+    return FALSE;
+  }
+
+  return TRUE;
 }
 
 #endif