diff --git a/bsc/MSC_ConnectionHandler.ttcn b/bsc/MSC_ConnectionHandler.ttcn
index 3e2e4f7..94ec2b9 100644
--- a/bsc/MSC_ConnectionHandler.ttcn
+++ b/bsc/MSC_ConnectionHandler.ttcn
@@ -673,8 +673,8 @@
 	f_rsl_send_l3(l3, link_id, chan_nr);
 }
 
-/* Convert the chipher representation on BSSMAP to the representation used on RSL */
-function f_chipher_mode_bssmap_to_rsl(OCT1 alg_bssmap) return RSL_AlgId
+/* Convert the cipher representation on BSSMAP to the representation used on RSL */
+function f_cipher_mode_bssmap_to_rsl(OCT1 alg_bssmap) return RSL_AlgId
 {
 	/* A5 0 */
 	if (alg_bssmap == '01'O) {
@@ -731,7 +731,7 @@
 
 	/* RSL uses a different representation of the encryption algorithm,
 	 * so we need to convert first */
-	alg_rsl := f_chipher_mode_bssmap_to_rsl(g_pars.encr.enc_alg);
+	alg_rsl := f_cipher_mode_bssmap_to_rsl(g_pars.encr.enc_alg);
 
 	if (alg_rsl == RSL_ALG_ID_A5_4 and ispresent(g_pars.encr.enc_kc128)) {
 		expect_kc := g_pars.encr.enc_kc128;
@@ -797,7 +797,7 @@
 			Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Unexpected Cipher Mode Complete");
 		} else {
 			setverdict(pass);
-			var RSL_AlgId alg_rsl := f_chipher_mode_bssmap_to_rsl(g_pars.encr.enc_alg);
+			var RSL_AlgId alg_rsl := f_cipher_mode_bssmap_to_rsl(g_pars.encr.enc_alg);
 			if (oct2int(bssap.pdu.bssmap.cipherModeComplete.chosenEncryptionAlgorithm.algorithmIdentifier) != enum2int(alg_rsl)) {
 				setverdict(fail, "Unexpected Encryption Algorithm ID in BSSMAP Cipher Mode Complete");
 			}
@@ -897,7 +897,7 @@
 		if (not f_rsl_find_ie(chan_act, RSL_IE_ENCR_INFO, encr_info)) {
 			Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Missing Encryption IE in CHAN ACT");
 		} else {
-			var RSL_AlgId alg := f_chipher_mode_bssmap_to_rsl(g_pars.encr.enc_alg);
+			var RSL_AlgId alg := f_cipher_mode_bssmap_to_rsl(g_pars.encr.enc_alg);
 			var octetstring expect_key;
 			if (alg == RSL_ALG_ID_A5_4) {
 				expect_key := g_pars.encr.enc_kc128;