diff --git a/skeletons/IA5String.c b/skeletons/IA5String.c
new file mode 100644
index 0000000..c4afcb0
--- /dev/null
+++ b/skeletons/IA5String.c
@@ -0,0 +1,57 @@
+/*-
+ * Copyright (c) 2003 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#include <IA5String.h>
+
+/*
+ * IA5String basic type description.
+ */
+static ber_tlv_tag_t asn1_DEF_IA5String_tags[] = {
+	(ASN_TAG_CLASS_UNIVERSAL | (22 << 2))
+};
+asn1_TYPE_descriptor_t asn1_DEF_IA5String = {
+	"IA5String",
+	IA5String_constraint,       /* Constraint on the alphabet */
+	OCTET_STRING_decode_ber,    /* Implemented in terms of OCTET STRING */
+	OCTET_STRING_encode_der,    /* Implemented in terms of OCTET STRING */
+	OCTET_STRING_print_ascii,  /* ASCII subset */
+	OCTET_STRING_free,
+	0, /* Use generic outmost tag fetcher */
+	asn1_DEF_IA5String_tags,
+	sizeof(asn1_DEF_IA5String_tags)
+	  / sizeof(asn1_DEF_IA5String_tags[0]),
+	1,	/* Single UNIVERSAL tag may be implicitly overriden */
+	-1,	/* Both ways are fine */
+};
+
+int
+IA5String_constraint(asn1_TYPE_descriptor_t *td, const void *sptr,
+		asn_app_consume_bytes_f *app_errlog, void *app_key) {
+	const IA5String_t *st = sptr;
+
+	if(st && st->buf) {
+		uint8_t *buf = st->buf;
+		uint8_t *end = buf + st->size;
+		/*
+		 * IA5String is generally equivalent to 7bit ASCII.
+		 * ISO/ITU-T T.50, 1963.
+		 */
+		for(; buf < end; buf++) {
+			if(*buf > 0x7F) {
+				_ASN_ERRLOG("%s: value byte %d out of range: "
+					"%d > 127",
+					td->name,
+					(buf - st->buf) + 1,
+					*buf
+				);
+				return -1;
+			}
+		}
+	} else {
+		_ASN_ERRLOG("%s: value not given", td->name);
+		return -1;
+	}
+
+	return 0;
+}