diff --git a/plugins/sim_hardcoded.c b/plugins/sim_hardcoded.c
new file mode 100644
index 00000000..d778e03c
--- /dev/null
+++ b/plugins/sim_hardcoded.c
@@ -0,0 +1,386 @@
+/*
+ *
+ *  Wireless daemon for Linux
+ *
+ *  Copyright (C) 2017  Intel Corporation. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+#include <errno.h>
+
+#include <ell/ell.h>
+#include <ell/plugin.h>
+
+#include "src/simutil.h"
+#include "src/simauth.h"
+
+struct hardcoded_sim {
+	char *identity;
+	uint8_t sim_supported;
+	uint8_t kc[NUM_RANDS_MAX][EAP_SIM_KC_LEN];
+	uint8_t sres[NUM_RANDS_MAX][EAP_SIM_SRES_LEN];
+	uint8_t aka_supported;
+	uint8_t ki[EAP_AKA_KI_LEN];
+	uint8_t opc[EAP_AKA_OPC_LEN];
+	uint8_t amf[EAP_AKA_AMF_LEN];
+	uint8_t sqn[EAP_AKA_SQN_LEN];
+	struct iwd_sim_auth *auth;
+};
+
+static struct hardcoded_sim *sim;
+
+/*
+ * Helper to XOR an array
+ * to - result of XOR array
+ * a - array 1
+ * b - array 2
+ * len - size of aray
+ */
+#define XOR(to, a, b, len) \
+	for (i = 0; i < len; i++) { \
+		to[i] = a[i] ^ b[i]; \
+	}
+
+static int get_milenage(const uint8_t *opc, const uint8_t *k,
+		const uint8_t *rand, const uint8_t *sqn, const uint8_t *amf,
+		const uint8_t *autn_in, uint8_t *autn, uint8_t *ck, uint8_t *ik,
+		uint8_t *res, uint8_t *auts)
+{
+	/* algorithm variables: TEMP, IN1, OUT1, OUT2, OUT5 (OUT3/4 == IK/CK) */
+	uint8_t temp[16];
+	uint8_t in1[16];
+	uint8_t out1[16], out2[16], out5[16];
+	/* other variables */
+	struct l_cipher *aes;
+	int i;
+	uint8_t tmp1[16];
+	uint8_t tmp2[16];
+	uint8_t sqn_autn[6];
+
+	aes = l_cipher_new(L_CIPHER_AES, k, 16);
+
+	/* temp = TEMP = E[RAND ^ OPc]k */
+	XOR(tmp1, rand, opc, 16);
+	l_cipher_encrypt(aes, tmp1, temp, 16);
+
+	/* IN1[0-47] = SQN[0-47] */
+	memcpy(in1, sqn, 6);
+	/* IN1[48-63] = AMF[0-15] */
+	memcpy(in1 + 6, amf, 2);
+	/* IN1[64-111] = SQN[0-47] */
+	memcpy(in1 + 8, sqn, 6);
+	/* IN1[112-127] = AMF[0-15] */
+	memcpy(in1 + 14, amf, 2);
+
+	/*
+	 * f1 and f1* output OUT1
+	 */
+	/*
+	 * tmp1 = rot(IN1 ^ OPc)r1
+	 * r1 = 64 bits = 8 bytes
+	 */
+	for (i = 0; i < 16; i++)
+		tmp1[(i + 8) % 16] = in1[i] ^ opc[i];
+
+	/* tmp2 = TEMP ^ tmp1 */
+	XOR(tmp2, temp, tmp1, 16);
+	/* tmp2 = E[tmp2]k */
+	l_cipher_encrypt(aes, tmp2, tmp1, 16);
+	/* out1 = OUT1 = tmp1 ^ opc */
+	XOR(out1, tmp1, opc, 16);
+
+	/*
+	 * f2 outputs OUT2 (RES | AK)
+	 *
+	 * r2 = 0 == no rotation
+	 */
+	/* tmp1 = rot(TEMP ^ OPc)r2 */
+	XOR(tmp1, temp, opc, 16);
+	/* tmp1 ^ c2. c2 at bit 127 == 1 */
+	tmp1[15] ^= 1;
+	l_cipher_encrypt(aes, tmp1, out2, 16);
+
+	/* get RES from OUT2 */
+	XOR(out2, out2, opc, 16);
+	memcpy(res, out2 + 8, 8);
+
+	/* check input autn (AUTN ^ AK = SQN)*/
+	XOR(sqn_autn, autn_in, out2, 6);
+
+	/* if SQN was not correct, generate AUTS */
+	if (memcmp(sqn_autn, sqn, 6)) {
+		/*
+		 * f5* outputs AK' (OUT5)
+		 */
+		for (i = 0; i < 16; i++)
+			tmp1[(i + 4) % 16] = temp[i] ^ opc[i];
+
+		/* tmp1 ^ c5. c5 at bit 124 == 1 */
+		tmp1[15] ^= 1 << 3;
+		l_cipher_encrypt(aes, tmp1, out5, 16);
+		/* out5 ^ opc */
+		XOR(out5, out5, opc, 16);
+
+		XOR(auts, sqn, out5, 6);
+
+		/* run f1 with zero'd AMF to finish AUTS */
+		in1[6] = 0x00;
+		in1[7] = 0x00;
+		in1[14] = 0x00;
+		in1[15] = 0x00;
+
+		for (i = 0; i < 16; i++)
+			tmp1[(i + 8) % 16] = in1[i] ^ opc[i];
+
+		/* tmp2 = TEMP ^ tmp1 */
+		XOR(tmp2, temp, tmp1, 16);
+		/* tmp2 = E[tmp2]k */
+		l_cipher_encrypt(aes, tmp2, tmp1, 16);
+		/* out1 = OUT1 = tmp1 ^ opc */
+		XOR(out1, tmp1, opc, 16);
+
+		memcpy(auts + 6, in1 + 8, 8);
+
+		return -1;
+	}
+
+	/* AUTN = (SQN ^ AK) | AMF | MAC_A */
+	XOR(autn, sqn, out2, 6);
+	memcpy(autn + 6, amf, 2);
+	memcpy(autn + 8, out1, 8);
+
+	if (memcmp(autn, autn_in, 16))
+		return -2;
+
+	/*
+	 * f3 outputs CK (OUT3)
+	 *
+	 * tmp1 = rot(TEMP ^ OPc)r3
+	 *
+	 * r3 = 32 bits = 4 bytes
+	 */
+	for (i = 0; i < 16; i++)
+		tmp1[(i + 12) % 16] = temp[i] ^ opc[i];
+
+	/* tmp1 ^ c3. c3 at bit 126 == 1 */
+	tmp1[15] ^= 1 << 1;
+	l_cipher_encrypt(aes, tmp1, ck, 16);
+	/* ck ^ opc */
+	XOR(ck, ck, opc, 16);
+
+	/*
+	 * f4 outputs IK (OUT4)
+	 *
+	 * tmp1 = rot(TEMP ^ OPc)r4
+	 *
+	 * r4 = 64 bits = 8 bytes
+	 */
+	for (i = 0; i < 16; i++)
+		tmp1[(i + 8) % 16] = temp[i] ^ opc[i];
+
+	/* tmp1 ^ c4. c4 at bit 125 == 1 */
+	tmp1[15] ^= 1 << 2;
+	l_cipher_encrypt(aes, tmp1, ik, 16);
+	/* ik ^ opc */
+	XOR(ik, ik, opc, 16);
+
+	l_cipher_free(aes);
+
+	return 0;
+}
+
+static int check_milenage(struct iwd_sim_auth *auth, const uint8_t *rand,
+		const uint8_t *autn, sim_auth_check_milenage_cb_t cb,
+		void *data)
+{
+	uint8_t res[8];
+	uint8_t ck[16];
+	uint8_t ik[16];
+	uint8_t _autn[16];
+	uint8_t auts[14];
+	int ret;
+
+	if (!sim->aka_supported)
+		return -ENOTSUP;
+
+	ret = get_milenage(sim->opc, sim->ki, rand, sim->sqn, sim->amf,
+			autn, _autn, ck, ik, res, auts);
+
+	/* ret == 0, success; ret == -1, sync failure; ret == -2, failure */
+	if (ret == 0)
+		cb(res, ck, ik, NULL, data);
+	else if (ret == -1)
+		cb(NULL, NULL, NULL, auts, data);
+	else
+		cb(NULL, NULL, NULL, NULL, data);
+
+	return 0;
+
+}
+
+static int run_gsm(struct iwd_sim_auth *auth, const uint8_t *rands,
+		int num_rands, sim_auth_run_gsm_cb_t cb, void *data)
+{
+	if (!sim->sim_supported)
+		return -ENOTSUP;
+
+	cb((const uint8_t *)sim->sres, (const uint8_t *)sim->kc, data);
+
+	return 0;
+}
+
+static struct iwd_sim_auth_driver hardcoded_sim_driver = {
+		.name = "Hardcoded SIM driver",
+		.check_milenage = check_milenage,
+		.run_gsm = run_gsm
+};
+
+static int sim_hardcoded_init(void)
+{
+	void *kc;
+	void *sres;
+	void *ki;
+	void *opc;
+	void *amf;
+	void *sqn;
+	const char *str;
+	size_t len;
+	struct l_settings *key_settings;
+	const char *config_path = getenv("IWD_SIM_KEYS");
+
+	if (!config_path) {
+		l_debug("IWD_SIM_KEYS not set in env");
+		return -ENOENT;
+	}
+
+	key_settings = l_settings_new();
+
+	if (!l_settings_load_from_file(key_settings, config_path)) {
+		l_error("No %s file found", config_path);
+		l_settings_free(key_settings);
+		return -ENOENT;
+	}
+
+	sim = l_new(struct hardcoded_sim, 1);
+
+	if (l_settings_has_group(key_settings, "SIM")) {
+		str = l_settings_get_value(key_settings, "SIM", "Kc");
+		if (!str) {
+			l_debug("Kc value must be present for SIM");
+			goto try_aka;
+		}
+
+		kc = l_util_from_hexstring(str, &len);
+		memcpy(sim->kc, kc, len);
+		l_free(kc);
+
+		str = l_settings_get_value(key_settings, "SIM", "SRES");
+		if (!str) {
+			l_debug("SRES value must be present for SIM");
+			goto try_aka;
+		}
+
+		sres = l_util_from_hexstring(str, &len);
+		memcpy(sim->sres, sres, NUM_RANDS_MAX * EAP_SIM_SRES_LEN);
+		l_free(sres);
+
+		str = l_settings_get_value(key_settings, "SIM", "Identity");
+		if (!str) {
+			l_debug("Identity setting must be present for SIM");
+			goto try_aka;
+		}
+
+		sim->identity = l_strdup(str);
+
+		sim->sim_supported = 1;
+	}
+
+try_aka:
+	if (l_settings_has_group(key_settings, "AKA")) {
+		str = l_settings_get_value(key_settings, "AKA", "KI");
+		if (!str) {
+			l_debug("KI value must be present for AKA");
+			goto end;
+		}
+
+		ki = l_util_from_hexstring(str, &len);
+		memcpy(sim->ki, ki, EAP_AKA_KI_LEN);
+		l_free(ki);
+
+		str = l_settings_get_value(key_settings, "AKA", "OPC");
+		if (!str) {
+			l_debug("OPC value must be preset for AKA");
+			goto end;
+		}
+
+		opc = l_util_from_hexstring(str, &len);
+		memcpy(sim->opc, opc, EAP_AKA_OPC_LEN);
+		l_free(opc);
+
+		str = l_settings_get_value(key_settings, "AKA", "AMF");
+		if (!str) {
+			l_debug("AMF value must be present for AKA");
+			goto end;
+		}
+
+		amf = l_util_from_hexstring(str, &len);
+		memcpy(sim->amf, amf, EAP_AKA_AMF_LEN);
+		l_free(amf);
+
+		str = l_settings_get_value(key_settings, "AKA", "SQN");
+		if (!str) {
+			l_debug("SQN value must be present for AKA");
+			goto end;
+		}
+
+		sqn = l_util_from_hexstring(str, &len);
+		memcpy(sim->sqn, sqn, EAP_AKA_SQN_LEN);
+		l_free(sqn);
+
+		str = l_settings_get_value(key_settings, "AKA", "Identity");
+		if (!str) {
+			l_debug("Identity setting must be present for AKA");
+			goto end;
+		}
+
+		sim->identity = l_strdup(str);
+
+		sim->aka_supported = 1;
+	}
+end:
+	if (!sim->sim_supported && !sim->aka_supported) {
+		l_debug("error parsing config file, values missing");
+		l_settings_free(key_settings);
+		return -EINVAL;
+	}
+
+	sim->auth = iwd_sim_auth_create(sim->sim_supported, sim->aka_supported,
+			sim->identity, &hardcoded_sim_driver, NULL);
+
+	return 0;
+}
+
+static void sim_hardcoded_exit(void)
+{
+	if (sim)
+		l_free(sim->identity);
+
+	l_free(sim);
+}
+
+L_PLUGIN_DEFINE(__iwd_builtin_sim_hardcoded, sim_hardcoded,
+		"Hardcoded SIM driver", "1.0", L_PLUGIN_PRIORITY_DEFAULT,
+		sim_hardcoded_init, sim_hardcoded_exit)