diff --git a/client/cmdhffido.c b/client/cmdhffido.c
index 1d082f868..97e48b3ec 100644
--- a/client/cmdhffido.c
+++ b/client/cmdhffido.c
@@ -721,8 +721,15 @@ int MakeCredentionalParseRes(json_t *root, uint8_t *data, size_t dataLen, bool v
 	PrintAndLog("Credential id[%d]: %s", cridlen, sprint_hex(&ubuf[55], cridlen));
 	
 	//Credentional public key (COSE_KEY)
+	uint8_t coseKey[65] = {0};
 	uint16_t cplen = n - 55 - cridlen;
 	PrintAndLog("Credentional public key (COSE_KEY)[%d]: %s", cplen, sprint_hex(&ubuf[55 + cridlen], cplen));
+	if (verbose) {
+		TinyCborPrintFIDOPackage(fido2COSEKey, true, &ubuf[55 + cridlen], cplen);		
+	}
+	res = COSEGetECDSAKey(&ubuf[55 + cridlen], cplen, verbose, coseKey);
+	if (res)
+		PrintAndLog("ERROR: Can't get COSE_KEY.");
 
 	free(ubuf);
 	
diff --git a/client/fido/cose.c b/client/fido/cose.c
index 17f1e71b3..90bb66308 100644
--- a/client/fido/cose.c
+++ b/client/fido/cose.c
@@ -126,5 +126,10 @@ const char *GetCOSEAlgDescription(int id) {
 	return COSEEmptyStr;
 }
 
+int COSEGetECDSAKey(uint8_t *data, size_t datalen, bool verbose, uint8_t *public_key) {
+	
+	
+	return 0;
+}
 
 
diff --git a/client/fido/cose.h b/client/fido/cose.h
index e8feb6d3f..1b685e4a8 100644
--- a/client/fido/cose.h
+++ b/client/fido/cose.h
@@ -20,4 +20,6 @@
 extern const char *GetCOSEAlgName(int id);
 extern const char *GetCOSEAlgDescription(int id);
 
+extern int COSEGetECDSAKey(uint8_t *data, size_t datalen, bool verbose, uint8_t *public_key);
+
 #endif /* __COSE_H__ */
diff --git a/client/fido/fidocore.c b/client/fido/fidocore.c
index 2df34b5ef..c65959eff 100644
--- a/client/fido/fidocore.c
+++ b/client/fido/fidocore.c
@@ -82,7 +82,7 @@ fido2Error_t fido2Errors[] = {
 typedef struct {
 	fido2Commands Command;
 	fido2PacketType PckType;
-	uint8_t MemberNumber;
+	int MemberNumber;
 	char *Description;
 } fido2Desc_t;
 
@@ -139,6 +139,13 @@ fido2Desc_t fido2CmdGetInfoRespDesc[] = {
 	{fido2CmdClientPIN, 		ptQuery,    0x06, "pinHashEnc"},
 	{fido2CmdClientPIN, 		ptQuery,    0x07, "getKeyAgreement"},
 	{fido2CmdClientPIN, 		ptQuery,    0x08, "getRetries"},
+	
+	{fido2COSEKey,		 		ptResponse, 0x01, "kty"},
+	{fido2COSEKey,		 		ptResponse, 0x03, "alg"},
+	{fido2COSEKey,		 		ptResponse,   -1, "crv"},
+	{fido2COSEKey,		 		ptResponse,   -2, "x - coordinate"},
+	{fido2COSEKey,		 		ptResponse,   -3, "y - coordinate"},
+	{fido2COSEKey,		 		ptResponse,   -4, "d - private key"},
 };
 
 char *fido2GetCmdErrorDescription(uint8_t errorCode) {
@@ -149,7 +156,7 @@ char *fido2GetCmdErrorDescription(uint8_t errorCode) {
 	return fido2Errors[0].Description;
 }
 
-char *fido2GetCmdMemberDescription(uint8_t cmdCode, bool isResponse, uint8_t memberNum) {
+char *fido2GetCmdMemberDescription(uint8_t cmdCode, bool isResponse, int memberNum) {
 	for (int i = 0; i < sizeof(fido2CmdGetInfoRespDesc) / sizeof(fido2Desc_t); i++)
 		if (fido2CmdGetInfoRespDesc[i].Command == cmdCode &&
 			fido2CmdGetInfoRespDesc[i].PckType == (isResponse ? ptResponse : ptQuery) &&
diff --git a/client/fido/fidocore.h b/client/fido/fidocore.h
index 97c3f0f06..5d6dc4be1 100644
--- a/client/fido/fidocore.h
+++ b/client/fido/fidocore.h
@@ -25,6 +25,9 @@ typedef enum {
 	fido2CmdClientPIN			= 0x06,
 	fido2CmdReset				= 0x07,
 	fido2CmdGetNextAssertion	= 0x08,
+	
+	// another data
+	fido2COSEKey                = 0xF0
 } fido2Commands;
 
 typedef enum  {
@@ -42,7 +45,7 @@ extern int FIDO2GetAssertion(uint8_t *params, uint8_t paramslen, uint8_t *Result
 
 extern int FIDOCheckDERAndGetKey(uint8_t *der, size_t derLen, bool verbose, uint8_t *publicKey, size_t publicKeyMaxLen);
 
-extern char *fido2GetCmdMemberDescription(uint8_t cmdCode, bool isResponse, uint8_t memberNum);
+extern char *fido2GetCmdMemberDescription(uint8_t cmdCode, bool isResponse, int memberNum);
 extern char *fido2GetCmdErrorDescription(uint8_t errorCode);
 
 extern int FIDO2CreateMakeCredentionalReq(json_t *root, uint8_t *data, size_t maxdatalen, size_t *datalen);