diff --git a/src/tpm2.c b/src/tpm2.c
index 27fe2a1..13c392b 100644
--- a/src/tpm2.c
+++ b/src/tpm2.c
@@ -4609,9 +4609,10 @@ TPM_RC TPM2_NV_DefineSpace(NV_DefineSpace_In* in)
         TPM2_Packet_AppendU32(&packet, in->authHandle);
         info.authCnt = TPM2_Packet_AppendAuth(&packet, ctx);
 
+        /* 1st TPM2B parameter, TPM2B_AUTH different from Authorization Area */
         TPM2_Packet_AppendU16(&packet, in->auth.size);
         TPM2_Packet_AppendBytes(&packet, in->auth.buffer, in->auth.size);
-
+        /* 2nd TPM2B parameter, TPM2B_PUBLIC */
         in->publicInfo.size = 4 + 2 + 4 + 2 +
             in->publicInfo.nvPublic.authPolicy.size + 2;
         TPM2_Packet_AppendU16(&packet, in->publicInfo.size);
@@ -5686,6 +5687,20 @@ void TPM2_PrintBin(const byte* buffer, word32 length)
         length -= sz;
     }
 }
+
+void TPM2_PrintAuth(const TPMS_AUTH_COMMAND* authCmd)
+{
+    if (authCmd == NULL)
+        return;
+
+    printf("authCmd:\n");
+    printf("sessionHandle=0x%7X\n", authCmd->sessionHandle);
+    printf("nonceSize=%u nonceBuffer:\n", authCmd->nonce.size);
+    TPM2_PrintBin(authCmd->nonce.buffer, authCmd->nonce.size);
+    printf("sessionAttributes=0x%2X\n", authCmd->sessionAttributes);
+    printf("hmacSize=%u hmacBuffer:\n", authCmd->hmac.size);
+    TPM2_PrintBin(authCmd->hmac.buffer, authCmd->hmac.size);
+}
 #endif
 
 /******************************************************************************/
diff --git a/src/tpm2_packet.c b/src/tpm2_packet.c
index a8293c2..03c2936 100644
--- a/src/tpm2_packet.c
+++ b/src/tpm2_packet.c
@@ -320,6 +320,8 @@ void TPM2_Packet_AppendAuthCmd(TPM2_Packet* packet, TPMS_AUTH_COMMAND* authCmd)
     if (packet == NULL || authCmd == NULL)
         return;
 
+    TPM2_PrintAuth(authCmd);
+
     /* make sure continueSession is set for TPM_RS_PW */
     if (authCmd->sessionHandle == TPM_RS_PW &&
         (authCmd->sessionAttributes & TPMA_SESSION_continueSession) == 0) {
diff --git a/wolftpm/tpm2.h b/wolftpm/tpm2.h
index 34dad54..57dc4c8 100644
--- a/wolftpm/tpm2.h
+++ b/wolftpm/tpm2.h
@@ -2819,8 +2819,10 @@ WOLFTPM_API UINT16 TPM2_GetVendorID(void);
 
 #ifdef DEBUG_WOLFTPM
 WOLFTPM_API void TPM2_PrintBin(const byte* buffer, word32 length);
+WOLFTPM_API void TPM2_PrintAuth(const TPMS_AUTH_COMMAND* authCmd);
 #else
 #define TPM2_PrintBin(b, l)
+#define TPM2_PrintAuth(b, l)
 #endif
 
 #ifdef __cplusplus