utils: Use memeq_const() for all cryptographic purposes

src/libcharon/plugins/eap_aka_3gpp2/eap_aka_3gpp2_card.c

@@ -87,7 +87,7 @@ METHOD(simaka_card_t, get_quintuplet, status_t,
 	{
 		return FAILED;
 	}
-	if (!memeq(mac, xmac, AKA_MAC_LEN))
+	if (!memeq_const(mac, xmac, AKA_MAC_LEN))
 	{
 		DBG1(DBG_IKE, "received MAC does not match XMAC");
 		DBG3(DBG_IKE, "MAC %b\nXMAC %b", mac, AKA_MAC_LEN, xmac, AKA_MAC_LEN);
@@ -184,4 +184,3 @@ eap_aka_3gpp2_card_t *eap_aka_3gpp2_card_create(eap_aka_3gpp2_functions_t *f)
 
 	return &this->public;
 }
-

src/libcharon/plugins/eap_aka_3gpp2/eap_aka_3gpp2_provider.c

@@ -158,7 +158,7 @@ METHOD(simaka_provider_t, resync, bool,
 	{
 		return FALSE;
 	}
-	if (!memeq(macs, xmacs, AKA_MAC_LEN))
+	if (!memeq_const(macs, xmacs, AKA_MAC_LEN))
 	{
 		DBG1(DBG_IKE, "received MACS does not match XMACS");
 		DBG3(DBG_IKE, "MACS %b XMACS %b",
@@ -205,4 +205,3 @@ eap_aka_3gpp2_provider_t *eap_aka_3gpp2_provider_create(
 
 	return &this->public;
 }
-

src/libcharon/plugins/eap_md5/eap_md5.c

@@ -193,7 +193,7 @@ METHOD(eap_method_t, process_server, status_t,
 	}
 	response = chunk_create(data.ptr + 6, data.ptr[5]);
 	if (response.len < expected.len ||
-		!memeq(response.ptr, expected.ptr, expected.len))
+		!memeq_const(response.ptr, expected.ptr, expected.len))
 	{
 		chunk_free(&expected);
 		DBG1(DBG_IKE, "EAP-MD5 verification failed");
@@ -299,4 +299,3 @@ eap_md5_t *eap_md5_create_peer(identification_t *server, identification_t *peer)
 
 	return &this->public;
 }
-

src/libcharon/plugins/eap_mschapv2/eap_mschapv2.c

@@ -1087,8 +1087,8 @@ static status_t process_server_response(private_eap_mschapv2_t *this,
 	userid->destroy(userid);
 	chunk_clear(&nt_hash);
 
-	if (memeq(res->response.nt_response, this->nt_response.ptr,
+	if (memeq_const(res->response.nt_response, this->nt_response.ptr,
-			  this->nt_response.len))
+					this->nt_response.len))
 	{
 		chunk_t hex;
 		char msg[AUTH_RESPONSE_LEN + sizeof(SUCCESS_MESSAGE)];
@@ -1267,4 +1267,3 @@ eap_mschapv2_t *eap_mschapv2_create_peer(identification_t *server, identificatio
 
 	return &this->public;
 }
-

src/libcharon/plugins/eap_sim/eap_sim_peer.c

@@ -310,7 +310,7 @@ static status_t process_challenge(private_eap_sim_peer_t *this,
 	/* excepting two or three RAND, each 16 bytes. We require two valid
 	 * and different RANDs */
 	if ((rands.len != 2 * SIM_RAND_LEN && rands.len != 3 * SIM_RAND_LEN) ||
-		memeq(rands.ptr, rands.ptr + SIM_RAND_LEN, SIM_RAND_LEN))
+		memeq_const(rands.ptr, rands.ptr + SIM_RAND_LEN, SIM_RAND_LEN))
 	{
 		DBG1(DBG_IKE, "no valid AT_RAND received");
 		if (!create_client_error(this, SIM_INSUFFICIENT_CHALLENGES, out))
@@ -734,4 +734,3 @@ eap_sim_peer_t *eap_sim_peer_create(identification_t *server,
 
 	return &this->public;
 }
-

src/libcharon/plugins/eap_sim_file/eap_sim_file_card.c

@@ -52,7 +52,7 @@ METHOD(simaka_card_t, get_triplet, bool,
 			 c_rand, SIM_RAND_LEN, c_sres, SIM_SRES_LEN, c_kc, SIM_KC_LEN);
 		if (id->matches(id, cand))
 		{
-			if (memeq(c_rand, rand, SIM_RAND_LEN))
+			if (memeq_const(c_rand, rand, SIM_RAND_LEN))
 			{
 				DBG2(DBG_CFG, "  => triplet matches");
 				memcpy(sres, c_sres, SIM_SRES_LEN);
@@ -105,4 +105,3 @@ eap_sim_file_card_t *eap_sim_file_card_create(eap_sim_file_triplets_t *triplets)
 
 	return &this->public;
 }
-

src/libradius/radius_message.c

@@ -536,7 +536,7 @@ METHOD(radius_message_t, verify, bool,
 		/* verify Response-Authenticator */
 		if (!hasher->get_hash(hasher, msg, NULL) ||
 			!hasher->get_hash(hasher, secret, buf) ||
-			!memeq(buf, res_auth, HASH_SIZE_MD5))
+			!memeq_const(buf, res_auth, HASH_SIZE_MD5))
 		{
 			DBG1(DBG_CFG, "RADIUS Response-Authenticator verification failed");
 			return FALSE;

src/libstrongswan/crypto/signers/mac_signer.c

@@ -85,7 +85,7 @@ METHOD(signer_t, verify_signature, bool,
 		return FALSE;
 	}
 	return this->mac->get_mac(this->mac, data, mac) &&
-		   memeq(signature.ptr, mac, this->truncation);
+		   memeq_const(signature.ptr, mac, this->truncation);
 }
 
 METHOD(signer_t, get_key_size, size_t,
@@ -136,4 +136,3 @@ signer_t *mac_signer_create(mac_t *mac, size_t len)
 
 	return &this->public;
 }
-

src/libstrongswan/plugins/af_alg/af_alg_signer.c

@@ -138,7 +138,7 @@ METHOD(signer_t, verify_signature, bool,
 	{
 		return FALSE;
 	}
-	return memeq(signature.ptr, sig, signature.len);
+	return memeq_const(signature.ptr, sig, signature.len);
 }
 
 METHOD(signer_t, get_key_size, size_t,

src/libstrongswan/plugins/ccm/ccm_aead.c

@@ -256,7 +256,7 @@ static bool verify_icv(private_ccm_aead_t *this, chunk_t plain, chunk_t assoc,
 	char buf[this->icv_size];
 
 	return create_icv(this, plain, assoc, iv, buf) &&
-		   memeq(buf, icv, this->icv_size);
+		   memeq_const(buf, icv, this->icv_size);
 }
 
 METHOD(aead_t, encrypt, bool,

src/libstrongswan/plugins/gcm/gcm_aead.c

@@ -276,7 +276,7 @@ static bool verify_icv(private_gcm_aead_t *this, chunk_t assoc, chunk_t crypt,
 	char tmp[this->icv_size];
 
 	return create_icv(this, assoc, crypt, j, tmp) &&
-		   memeq(tmp, icv, this->icv_size);
+		   memeq_const(tmp, icv, this->icv_size);
 }
 
 METHOD(aead_t, encrypt, bool,

src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c

@@ -187,7 +187,7 @@ static bool verify_emsa_pkcs1_signature(private_gmp_rsa_public_key_t *this,
 				 " %u bytes", em.len, data.len);
 			goto end;
 		}
-		success = memeq(em.ptr, data.ptr, data.len);
+		success = memeq_const(em.ptr, data.ptr, data.len);
 	}
 	else
 	{   /* IKEv2 and X.509 certificate signatures */
@@ -258,7 +258,7 @@ static bool verify_emsa_pkcs1_signature(private_gmp_rsa_public_key_t *this,
 						goto end_parser;
 					}
 					hasher->destroy(hasher);
-					success = memeq(object.ptr, hash.ptr, hash.len);
+					success = memeq_const(object.ptr, hash.ptr, hash.len);
 					free(hash.ptr);
 					break;
 				}
@@ -500,4 +500,3 @@ gmp_rsa_public_key_t *gmp_rsa_public_key_load(key_type_t type, va_list args)
 
 	return &this->public;
 }
-