REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4177
AeadAesGcm implementation based on Mbedtls.
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Yi Li <yi1...@intel.com>
Signed-off-by: Wenxing Hou <wenxing....@intel.com>
---
.../Cipher/CryptAeadAesGcm.c | 227 ++++++++++++++++++
1 file changed, 227 insertions(+)
create mode 100644
CryptoPkg/Library/BaseCryptLibMbedTls/Cipher/CryptAeadAesGcm.c
diff --git a/CryptoPkg/Library/BaseCryptLibMbedTls/Cipher/CryptAeadAesGcm.c
b/CryptoPkg/Library/BaseCryptLibMbedTls/Cipher/CryptAeadAesGcm.c
new file mode 100644
index 0000000000..b49d6f9f87
--- /dev/null
+++ b/CryptoPkg/Library/BaseCryptLibMbedTls/Cipher/CryptAeadAesGcm.c
@@ -0,0 +1,227 @@
+/** @file
+ AEAD (AES-GCM) Wrapper Implementation over MbedTLS.
+
+ RFC 5116 - An Interface and Algorithms for Authenticated Encryption
+ NIST SP800-38d - Cipher Modes of Operation: Galois / Counter Mode(GCM) and
GMAC
+
+Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "InternalCryptLib.h"
+#include <mbedtls/gcm.h>
+
+/**
+ Performs AEAD AES-GCM authenticated encryption on a data buffer and
additional authenticated data (AAD).
+
+ IvSize must be 12, otherwise FALSE is returned.
+ KeySize must be 16, 24 or 32, otherwise FALSE is returned.
+ TagSize must be 12, 13, 14, 15, 16, otherwise FALSE is returned.
+
+ @param[in] Key Pointer to the encryption key.
+ @param[in] KeySize Size of the encryption key in bytes.
+ @param[in] Iv Pointer to the IV value.
+ @param[in] IvSize Size of the IV value in bytes.
+ @param[in] AData Pointer to the additional authenticated data (AAD).
+ @param[in] ADataSize Size of the additional authenticated data (AAD) in
bytes.
+ @param[in] DataIn Pointer to the input data buffer to be encrypted.
+ @param[in] DataInSize Size of the input data buffer in bytes.
+ @param[out] TagOut Pointer to a buffer that receives the
authentication tag output.
+ @param[in] TagSize Size of the authentication tag in bytes.
+ @param[out] DataOut Pointer to a buffer that receives the encryption
output.
+ @param[out] DataOutSize Size of the output data buffer in bytes.
+
+ @retval TRUE AEAD AES-GCM authenticated encryption succeeded.
+ @retval FALSE AEAD AES-GCM authenticated encryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+AeadAesGcmEncrypt (
+ IN CONST UINT8 *Key,
+ IN UINTN KeySize,
+ IN CONST UINT8 *Iv,
+ IN UINTN IvSize,
+ IN CONST UINT8 *AData,
+ IN UINTN ADataSize,
+ IN CONST UINT8 *DataIn,
+ IN UINTN DataInSize,
+ OUT UINT8 *TagOut,
+ IN UINTN TagSize,
+ OUT UINT8 *DataOut,
+ OUT UINTN *DataOutSize
+ )
+{
+ mbedtls_gcm_context Ctx;
+ INT32 Ret;
+
+ if (DataInSize > INT_MAX) {
+ return FALSE;
+ }
+
+ if (ADataSize > INT_MAX) {
+ return FALSE;
+ }
+
+ if (IvSize != 12) {
+ return FALSE;
+ }
+
+ switch (KeySize) {
+ case 16:
+ case 24:
+ case 32:
+ break;
+ default:
+ return FALSE;
+ }
+
+ if ((TagSize != 12) && (TagSize != 13) && (TagSize != 14) && (TagSize != 15)
&& (TagSize != 16)) {
+ return FALSE;
+ }
+
+ if (DataOutSize != NULL) {
+ if ((*DataOutSize > INT_MAX) || (*DataOutSize < DataInSize)) {
+ return FALSE;
+ }
+ }
+
+ mbedtls_gcm_init (&Ctx);
+
+ Ret = mbedtls_gcm_setkey (&Ctx, MBEDTLS_CIPHER_ID_AES, Key, (UINT32)(KeySize
* 8));
+ if (Ret != 0) {
+ return FALSE;
+ }
+
+ Ret = mbedtls_gcm_crypt_and_tag (
+ &Ctx,
+ MBEDTLS_GCM_ENCRYPT,
+ (UINT32)DataInSize,
+ Iv,
+ (UINT32)IvSize,
+ AData,
+ (UINT32)ADataSize,
+ DataIn,
+ DataOut,
+ TagSize,
+ TagOut
+ );
+ mbedtls_gcm_free (&Ctx);
+ if (Ret != 0) {
+ return FALSE;
+ }
+
+ if (DataOutSize != NULL) {
+ *DataOutSize = DataInSize;
+ }
+
+ return TRUE;
+}
+
+/**
+ Performs AEAD AES-GCM authenticated decryption on a data buffer and
additional authenticated data (AAD).
+
+ IvSize must be 12, otherwise FALSE is returned.
+ KeySize must be 16, 24 or 32, otherwise FALSE is returned.
+ TagSize must be 12, 13, 14, 15, 16, otherwise FALSE is returned.
+ If additional authenticated data verification fails, FALSE is returned.
+
+ @param[in] Key Pointer to the encryption key.
+ @param[in] KeySize Size of the encryption key in bytes.
+ @param[in] Iv Pointer to the IV value.
+ @param[in] IvSize Size of the IV value in bytes.
+ @param[in] AData Pointer to the additional authenticated data (AAD).
+ @param[in] ADataSize Size of the additional authenticated data (AAD) in
bytes.
+ @param[in] DataIn Pointer to the input data buffer to be decrypted.
+ @param[in] DataInSize Size of the input data buffer in bytes.
+ @param[in] Tag Pointer to a buffer that contains the
authentication tag.
+ @param[in] TagSize Size of the authentication tag in bytes.
+ @param[out] DataOut Pointer to a buffer that receives the decryption
output.
+ @param[out] DataOutSize Size of the output data buffer in bytes.
+
+ @retval TRUE AEAD AES-GCM authenticated decryption succeeded.
+ @retval FALSE AEAD AES-GCM authenticated decryption failed.
+
+**/
+BOOLEAN
+EFIAPI
+AeadAesGcmDecrypt (
+ IN CONST UINT8 *Key,
+ IN UINTN KeySize,
+ IN CONST UINT8 *Iv,
+ IN UINTN IvSize,
+ IN CONST UINT8 *AData,
+ IN UINTN ADataSize,
+ IN CONST UINT8 *DataIn,
+ IN UINTN DataInSize,
+ IN CONST UINT8 *Tag,
+ IN UINTN TagSize,
+ OUT UINT8 *DataOut,
+ OUT UINTN *DataOutSize
+ )
+{
+ mbedtls_gcm_context Ctx;
+ INT32 Ret;
+
+ if (DataInSize > INT_MAX) {
+ return FALSE;
+ }
+
+ if (ADataSize > INT_MAX) {
+ return FALSE;
+ }
+
+ if (IvSize != 12) {
+ return FALSE;
+ }
+
+ switch (KeySize) {
+ case 16:
+ case 24:
+ case 32:
+ break;
+ default:
+ return FALSE;
+ }
+
+ if ((TagSize != 12) && (TagSize != 13) && (TagSize != 14) && (TagSize != 15)
&& (TagSize != 16)) {
+ return FALSE;
+ }
+
+ if (DataOutSize != NULL) {
+ if ((*DataOutSize > INT_MAX) || (*DataOutSize < DataInSize)) {
+ return FALSE;
+ }
+ }
+
+ mbedtls_gcm_init (&Ctx);
+
+ Ret = mbedtls_gcm_setkey (&Ctx, MBEDTLS_CIPHER_ID_AES, Key, (UINT32)(KeySize
* 8));
+ if (Ret != 0) {
+ return FALSE;
+ }
+
+ Ret = mbedtls_gcm_auth_decrypt (
+ &Ctx,
+ (UINT32)DataInSize,
+ Iv,
+ (UINT32)IvSize,
+ AData,
+ (UINT32)ADataSize,
+ Tag,
+ (UINT32)TagSize,
+ DataIn,
+ DataOut
+ );
+ mbedtls_gcm_free (&Ctx);
+ if (Ret != 0) {
+ return FALSE;
+ }
+
+ if (DataOutSize != NULL) {
+ *DataOutSize = DataInSize;
+ }
+
+ return TRUE;
+}
--
2.26.2.windows.1
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