CryptoPkg/BaseCryptLib: Make HMAC_CTX size backward compatible

[mirror_edk2.git] / CryptoPkg / Library / BaseCryptLib / Hmac / CryptHmacSha256.c

diff --git a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256.c b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256.c
index ac9084fa850db0dfa9583231453bff7f16aa5a46..f24443e7455289ac56d6e41d3b9079799f24a366 100644 (file)
--- a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256.c
+++ b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256.c
@@ -9,8 +9,12 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include "InternalCryptLib.h"\r
 #include <openssl/hmac.h>\r
 \r
-#define HMAC_SHA256_CTX_SIZE   sizeof(void *) * 4 + sizeof(unsigned int) + \\r
-                               sizeof(unsigned char) * HMAC_MAX_MD_CBLOCK\r
+//\r
+// NOTE: OpenSSL redefines the size of HMAC_CTX at crypto/hmac/hmac_lcl.h\r
+//       #define HMAC_MAX_MD_CBLOCK_SIZE     144\r
+//\r
+#define HMAC_SHA256_CTX_SIZE    (sizeof(void *) * 4 + sizeof(unsigned int) + \\r
+                             sizeof(unsigned char) * 144)\r
 \r
 /**\r
   Retrieves the size, in bytes, of the context buffer required for HMAC-SHA256 operations.\r