diff --git a/drivers/s390/crypto/pkey_api.c b/drivers/s390/crypto/pkey_api.c
index ba8581e0809c..2661d6a9ea13 100644
--- a/drivers/s390/crypto/pkey_api.c
+++ b/drivers/s390/crypto/pkey_api.c
@@ -713,6 +713,11 @@ static int pkey_genseckey2(const struct pkey_apqn *apqns, size_t nr_apqns,
 		if (*keybufsize < MINEP11AESKEYBLOBSIZE)
 			return -EINVAL;
 		break;
+	case PKEY_TYPE_EP11_AES:
+		if (*keybufsize < (sizeof(struct ep11kblob_header) +
+				   MINEP11AESKEYBLOBSIZE))
+			return -EINVAL;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -729,9 +734,10 @@ static int pkey_genseckey2(const struct pkey_apqn *apqns, size_t nr_apqns,
 	for (i = 0, rc = -ENODEV; i < nr_apqns; i++) {
 		card = apqns[i].card;
 		dom = apqns[i].domain;
-		if (ktype == PKEY_TYPE_EP11) {
+		if (ktype == PKEY_TYPE_EP11 ||
+		    ktype == PKEY_TYPE_EP11_AES) {
 			rc = ep11_genaeskey(card, dom, ksize, kflags,
-					    keybuf, keybufsize);
+					    keybuf, keybufsize, ktype);
 		} else if (ktype == PKEY_TYPE_CCA_DATA) {
 			rc = cca_genseckey(card, dom, ksize, keybuf);
 			*keybufsize = (rc ? 0 : SECKEYBLOBSIZE);
@@ -1466,7 +1472,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
 		apqns = _copy_apqns_from_user(kgs.apqns, kgs.apqn_entries);
 		if (IS_ERR(apqns))
 			return PTR_ERR(apqns);
-		kkey = kmalloc(klen, GFP_KERNEL);
+		kkey = kzalloc(klen, GFP_KERNEL);
 		if (!kkey) {
 			kfree(apqns);
 			return -ENOMEM;
@@ -2130,7 +2136,8 @@ static ssize_t pkey_ep11_aes_attr_read(enum pkey_key_size keybits,
 	for (i = 0, rc = -ENODEV; i < nr_apqns; i++) {
 		card = apqns[i] >> 16;
 		dom = apqns[i] & 0xFFFF;
-		rc = ep11_genaeskey(card, dom, keybits, 0, buf, &keysize);
+		rc = ep11_genaeskey(card, dom, keybits, 0, buf, &keysize,
+				    PKEY_TYPE_EP11);
 		if (rc == 0)
 			break;
 	}
@@ -2140,7 +2147,8 @@ static ssize_t pkey_ep11_aes_attr_read(enum pkey_key_size keybits,
 	if (is_xts) {
 		keysize = MAXEP11AESKEYBLOBSIZE;
 		buf += MAXEP11AESKEYBLOBSIZE;
-		rc = ep11_genaeskey(card, dom, keybits, 0, buf, &keysize);
+		rc = ep11_genaeskey(card, dom, keybits, 0, buf, &keysize,
+				    PKEY_TYPE_EP11);
 		if (rc == 0)
 			return 2 * MAXEP11AESKEYBLOBSIZE;
 	}
diff --git a/drivers/s390/crypto/zcrypt_ep11misc.c b/drivers/s390/crypto/zcrypt_ep11misc.c
index d7ecd6ce5b7a..51f6753e01c5 100644
--- a/drivers/s390/crypto/zcrypt_ep11misc.c
+++ b/drivers/s390/crypto/zcrypt_ep11misc.c
@@ -113,6 +113,50 @@ static void __exit card_cache_free(void)
 	spin_unlock_bh(&card_list_lock);
 }
 
+static int ep11_kb_split(const u8 *kb, size_t kblen, u32 kbver,
+			 struct ep11kblob_header **kbhdr, size_t *kbhdrsize,
+			 u8 **kbpl, size_t *kbplsize)
+{
+	struct ep11kblob_header *hdr = NULL;
+	size_t hdrsize, plsize = 0;
+	int rc = -EINVAL;
+	u8 *pl = NULL;
+
+	if (kblen < sizeof(struct ep11kblob_header))
+		goto out;
+	hdr = (struct ep11kblob_header *)kb;
+
+	switch (kbver) {
+	case TOKVER_EP11_AES:
+		/* header overlays the payload */
+		hdrsize = 0;
+		break;
+	case TOKVER_EP11_ECC_WITH_HEADER:
+	case TOKVER_EP11_AES_WITH_HEADER:
+		/* payload starts after the header */
+		hdrsize = sizeof(struct ep11kblob_header);
+		break;
+	default:
+		goto out;
+	}
+
+	plsize = kblen - hdrsize;
+	pl = (u8 *)kb + hdrsize;
+
+	if (kbhdr)
+		*kbhdr = hdr;
+	if (kbhdrsize)
+		*kbhdrsize = hdrsize;
+	if (kbpl)
+		*kbpl = pl;
+	if (kbplsize)
+		*kbplsize = plsize;
+
+	rc = 0;
+out:
+	return rc;
+}
+
 /*
  * Simple check if the key blob is a valid EP11 AES key blob with header.
  */
@@ -664,8 +708,9 @@ EXPORT_SYMBOL(ep11_get_domain_info);
  */
 #define KEY_ATTR_DEFAULTS 0x00200c00
 
-int ep11_genaeskey(u16 card, u16 domain, u32 keybitsize, u32 keygenflags,
-		   u8 *keybuf, size_t *keybufsize)
+static int _ep11_genaeskey(u16 card, u16 domain,
+			   u32 keybitsize, u32 keygenflags,
+			   u8 *keybuf, size_t *keybufsize)
 {
 	struct keygen_req_pl {
 		struct pl_head head;
@@ -701,7 +746,6 @@ int ep11_genaeskey(u16 card, u16 domain, u32 keybitsize, u32 keygenflags,
 	struct ep11_cprb *req = NULL, *rep = NULL;
 	struct ep11_target_dev target;
 	struct ep11_urb *urb = NULL;
-	struct ep11keyblob *kb;
 	int api, rc = -ENOMEM;
 
 	switch (keybitsize) {
@@ -780,14 +824,9 @@ int ep11_genaeskey(u16 card, u16 domain, u32 keybitsize, u32 keygenflags,
 		goto out;
 	}
 
-	/* copy key blob and set header values */
+	/* copy key blob */
 	memcpy(keybuf, rep_pl->data, rep_pl->data_len);
 	*keybufsize = rep_pl->data_len;
-	kb = (struct ep11keyblob *)keybuf;
-	kb->head.type = TOKTYPE_NON_CCA;
-	kb->head.len = rep_pl->data_len;
-	kb->head.version = TOKVER_EP11_AES;
-	kb->head.bitlen = keybitsize;
 
 out:
 	kfree(req);
@@ -795,6 +834,43 @@ out:
 	kfree(urb);
 	return rc;
 }
+
+int ep11_genaeskey(u16 card, u16 domain, u32 keybitsize, u32 keygenflags,
+		   u8 *keybuf, size_t *keybufsize, u32 keybufver)
+{
+	struct ep11kblob_header *hdr;
+	size_t hdr_size, pl_size;
+	u8 *pl;
+	int rc;
+
+	switch (keybufver) {
+	case TOKVER_EP11_AES:
+	case TOKVER_EP11_AES_WITH_HEADER:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	rc = ep11_kb_split(keybuf, *keybufsize, keybufver,
+			   &hdr, &hdr_size, &pl, &pl_size);
+	if (rc)
+		return rc;
+
+	rc = _ep11_genaeskey(card, domain, keybitsize, keygenflags,
+			     pl, &pl_size);
+	if (rc)
+		return rc;
+
+	*keybufsize = hdr_size + pl_size;
+
+	/* update header information */
+	hdr->type = TOKTYPE_NON_CCA;
+	hdr->len = *keybufsize;
+	hdr->version = keybufver;
+	hdr->bitlen = keybitsize;
+
+	return 0;
+}
 EXPORT_SYMBOL(ep11_genaeskey);
 
 static int ep11_cryptsingle(u16 card, u16 domain,
@@ -1201,7 +1277,6 @@ int ep11_clr2keyblob(u16 card, u16 domain, u32 keybitsize, u32 keygenflags,
 		     const u8 *clrkey, u8 *keybuf, size_t *keybufsize)
 {
 	int rc;
-	struct ep11keyblob *kb;
 	u8 encbuf[64], *kek = NULL;
 	size_t clrkeylen, keklen, encbuflen = sizeof(encbuf);
 
@@ -1223,17 +1298,15 @@ int ep11_clr2keyblob(u16 card, u16 domain, u32 keybitsize, u32 keygenflags,
 	}
 
 	/* Step 1: generate AES 256 bit random kek key */
-	rc = ep11_genaeskey(card, domain, 256,
-			    0x00006c00, /* EN/DECRYPT, WRAP/UNWRAP */
-			    kek, &keklen);
+	rc = _ep11_genaeskey(card, domain, 256,
+			     0x00006c00, /* EN/DECRYPT, WRAP/UNWRAP */
+			     kek, &keklen);
 	if (rc) {
 		DEBUG_ERR(
 			"%s generate kek key failed, rc=%d\n",
 			__func__, rc);
 		goto out;
 	}
-	kb = (struct ep11keyblob *)kek;
-	memset(&kb->head, 0, sizeof(kb->head));
 
 	/* Step 2: encrypt clear key value with the kek key */
 	rc = ep11_cryptsingle(card, domain, 0, 0, def_iv, kek, keklen,
diff --git a/drivers/s390/crypto/zcrypt_ep11misc.h b/drivers/s390/crypto/zcrypt_ep11misc.h
index 67cc80d71ba3..2eecbd7be6e5 100644
--- a/drivers/s390/crypto/zcrypt_ep11misc.h
+++ b/drivers/s390/crypto/zcrypt_ep11misc.h
@@ -107,7 +107,7 @@ int ep11_get_domain_info(u16 card, u16 domain, struct ep11_domain_info *info);
  * Generate (random) EP11 AES secure key.
  */
 int ep11_genaeskey(u16 card, u16 domain, u32 keybitsize, u32 keygenflags,
-		   u8 *keybuf, size_t *keybufsize);
+		   u8 *keybuf, size_t *keybufsize, u32 keybufver);
 
 /*
  * Generate EP11 AES secure key with given clear key value.