Merge pull request #9364 from dgarske/silabs_ecb

Fixed issue with AES ECB offloading to hardware to use full size

Author: douzzer

wolfcrypt/src/aes.c

@@ -13036,6 +13036,9 @@ int wc_AesGetKeySize(Aes* aes, word32* keySize)
 #elif defined(WOLFSSL_RISCV_ASM)
     /* implemented in wolfcrypt/src/port/riscv/riscv-64-aes.c */
 
+#elif defined(WOLFSSL_SILABS_SE_ACCEL)
+    /* implemented in wolfcrypt/src/port/silabs/silabs_aes.c */
+
 #elif defined(MAX3266X_AES)
 
 int wc_AesEcbEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)

wolfcrypt/src/port/silabs/silabs_aes.c

@@ -89,6 +89,48 @@ int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen,
     return ret;
 }
 
+#ifdef HAVE_AES_ECB
+int wc_AesEcbEncrypt(Aes* aes, byte* out, const byte* in, word32 sz)
+{
+    sl_status_t status;
+    if ((in == NULL) || (out == NULL) || (aes == NULL)) {
+        return BAD_FUNC_ARG;
+    }
+    if ((sz % WC_AES_BLOCK_SIZE) != 0) {
+        return BAD_LENGTH_E;
+    }
+
+    status = sl_se_aes_crypt_ecb(
+        &(aes->ctx.cmd_ctx),
+        &(aes->ctx.key),
+        SL_SE_ENCRYPT,
+        sz,
+        in,
+        out);
+    return (status != SL_STATUS_OK) ? WC_HW_E : 0;
+}
+
+int wc_AesEcbDecrypt(Aes* aes, byte* out, const byte* in, word32 sz)
+{
+    sl_status_t status;
+    if ((in == NULL) || (out == NULL) || (aes == NULL)) {
+        return BAD_FUNC_ARG;
+    }
+    if ((sz % WC_AES_BLOCK_SIZE) != 0) {
+        return BAD_LENGTH_E;
+    }
+
+    status = sl_se_aes_crypt_ecb(
+        &(aes->ctx.cmd_ctx),
+        &(aes->ctx.key),
+        SL_SE_DECRYPT,
+        sz,
+        in,
+        out);
+    return (status != SL_STATUS_OK) ? WC_HW_E : 0;
+}
+#endif /* HAVE_AES_ECB */
+
 #ifdef WOLFSSL_AES_DIRECT
 int wc_AesEncrypt(Aes* aes, const byte* inBlock, byte* outBlock)
 {