22 files changed, 862 insertions, 176 deletions

diff --git a/include/crypto/aead.h b/include/crypto/aead.h
index 957bb8763219..12f84327ca36 100644
--- a/include/crypto/aead.h
+++ b/include/crypto/aead.h
@@ -112,11 +112,12 @@ struct aead_request {
  *		 supplied during the decryption operation. This function is also
  *		 responsible for checking the authentication tag size for
  *		 validity.
- * @setkey: see struct ablkcipher_alg
- * @encrypt: see struct ablkcipher_alg
- * @decrypt: see struct ablkcipher_alg
- * @geniv: see struct ablkcipher_alg
- * @ivsize: see struct ablkcipher_alg
+ * @setkey: see struct skcipher_alg
+ * @encrypt: see struct skcipher_alg
+ * @decrypt: see struct skcipher_alg
+ * @geniv: see struct skcipher_alg
+ * @ivsize: see struct skcipher_alg
+ * @chunksize: see struct skcipher_alg
  * @init: Initialize the cryptographic transformation object. This function
  *	  is used to initialize the cryptographic transformation object.
  *	  This function is called only once at the instantiation time, right
@@ -145,6 +146,7 @@ struct aead_alg {
 
 	unsigned int ivsize;
 	unsigned int maxauthsize;
+	unsigned int chunksize;
 
 	struct crypto_alg base;
 };
@@ -405,8 +407,7 @@ static inline void aead_request_set_tfm(struct aead_request *req,
  * encrypt and decrypt API calls. During the allocation, the provided aead
  * handle is registered in the request data structure.
  *
- * Return: allocated request handle in case of success; IS_ERR() is true in case
- *	   of an error, PTR_ERR() returns the error code.
+ * Return: allocated request handle in case of success, or NULL if out of memory
  */
 static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm,
 						      gfp_t gfp)
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index eeafd21afb44..8637cdfe382a 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -244,6 +244,8 @@ static inline struct crypto_alg *crypto_attr_alg(struct rtattr *rta,
 }
 
 int crypto_attr_u32(struct rtattr *rta, u32 *num);
+int crypto_inst_setname(struct crypto_instance *inst, const char *name,
+			struct crypto_alg *alg);
 void *crypto_alloc_instance2(const char *name, struct crypto_alg *alg,
 			     unsigned int head);
 struct crypto_instance *crypto_alloc_instance(const char *name,
@@ -440,8 +442,10 @@ static inline int crypto_memneq(const void *a, const void *b, size_t size)
 
 static inline void crypto_yield(u32 flags)
 {
+#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PREEMPT_VOLUNTARY)
 	if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
 		cond_resched();
+#endif
 }
 
 #endif	/* _CRYPTO_ALGAPI_H */
diff --git a/include/crypto/chacha20.h b/include/crypto/chacha20.h
index 274bbaeeed0f..20d20f681a72 100644
--- a/include/crypto/chacha20.h
+++ b/include/crypto/chacha20.h
@@ -16,6 +16,7 @@ struct chacha20_ctx {
 	u32 key[8];
 };
 
+void chacha20_block(u32 *state, void *stream);
 void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv);
 int crypto_chacha20_setkey(struct crypto_tfm *tfm, const u8 *key,
 			   unsigned int keysize);
diff --git a/include/crypto/cryptd.h b/include/crypto/cryptd.h
index 1547f540c920..bc792d5a9e88 100644
--- a/include/crypto/cryptd.h
+++ b/include/crypto/cryptd.h
@@ -31,6 +31,7 @@ static inline struct cryptd_ablkcipher *__cryptd_ablkcipher_cast(
 struct cryptd_ablkcipher *cryptd_alloc_ablkcipher(const char *alg_name,
 						  u32 type, u32 mask);
 struct crypto_blkcipher *cryptd_ablkcipher_child(struct cryptd_ablkcipher *tfm);
+bool cryptd_ablkcipher_queued(struct cryptd_ablkcipher *tfm);
 void cryptd_free_ablkcipher(struct cryptd_ablkcipher *tfm);
 
 struct cryptd_ahash {
@@ -48,6 +49,8 @@ struct cryptd_ahash *cryptd_alloc_ahash(const char *alg_name,
 					u32 type, u32 mask);
 struct crypto_shash *cryptd_ahash_child(struct cryptd_ahash *tfm);
 struct shash_desc *cryptd_shash_desc(struct ahash_request *req);
+/* Must be called without moving CPUs. */
+bool cryptd_ahash_queued(struct cryptd_ahash *tfm);
 void cryptd_free_ahash(struct cryptd_ahash *tfm);
 
 struct cryptd_aead {
@@ -64,6 +67,8 @@ struct cryptd_aead *cryptd_alloc_aead(const char *alg_name,
 					  u32 type, u32 mask);
 
 struct crypto_aead *cryptd_aead_child(struct cryptd_aead *tfm);
+/* Must be called without moving CPUs. */
+bool cryptd_aead_queued(struct cryptd_aead *tfm);
 
 void cryptd_free_aead(struct cryptd_aead *tfm);
 
diff --git a/include/crypto/dh.h b/include/crypto/dh.h
new file mode 100644
index 000000000000..5102a8f282e6
--- /dev/null
+++ b/include/crypto/dh.h
@@ -0,0 +1,29 @@
+/*
+ * Diffie-Hellman secret to be used with kpp API along with helper functions
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+#ifndef _CRYPTO_DH_
+#define _CRYPTO_DH_
+
+struct dh {
+	void *key;
+	void *p;
+	void *g;
+	unsigned int key_size;
+	unsigned int p_size;
+	unsigned int g_size;
+};
+
+int crypto_dh_key_len(const struct dh *params);
+int crypto_dh_encode_key(char *buf, unsigned int len, const struct dh *params);
+int crypto_dh_decode_key(const char *buf, unsigned int len, struct dh *params);
+
+#endif
diff --git a/include/crypto/drbg.h b/include/crypto/drbg.h
index d961b2b16f55..61580b19f9f6 100644
--- a/include/crypto/drbg.h
+++ b/include/crypto/drbg.h
@@ -43,6 +43,7 @@
 #include <linux/random.h>
 #include <linux/scatterlist.h>
 #include <crypto/hash.h>
+#include <crypto/skcipher.h>
 #include <linux/module.h>
 #include <linux/crypto.h>
 #include <linux/slab.h>
@@ -107,14 +108,25 @@ struct drbg_test_data {
 struct drbg_state {
 	struct mutex drbg_mutex;	/* lock around DRBG */
 	unsigned char *V;	/* internal state 10.1.1.1 1a) */
+	unsigned char *Vbuf;
 	/* hash: static value 10.1.1.1 1b) hmac / ctr: key */
 	unsigned char *C;
+	unsigned char *Cbuf;
 	/* Number of RNG requests since last reseed -- 10.1.1.1 1c) */
 	size_t reseed_ctr;
 	size_t reseed_threshold;
 	 /* some memory the DRBG can use for its operation */
 	unsigned char *scratchpad;
+	unsigned char *scratchpadbuf;
 	void *priv_data;	/* Cipher handle */
+
+	struct crypto_skcipher *ctr_handle;	/* CTR mode cipher handle */
+	struct skcipher_request *ctr_req;	/* CTR mode request handle */
+	__u8 *ctr_null_value_buf;		/* CTR mode unaligned buffer */
+	__u8 *ctr_null_value;			/* CTR mode aligned zero buf */
+	struct completion ctr_completion;	/* CTR mode async handler */
+	int ctr_async_err;			/* CTR mode async error */
+
 	bool seeded;		/* DRBG fully seeded? */
 	bool pr;		/* Prediction resistance enabled? */
 	struct work_struct seed_work;	/* asynchronous seeding support */
diff --git a/include/crypto/ecdh.h b/include/crypto/ecdh.h
new file mode 100644
index 000000000000..84bad548d194
--- /dev/null
+++ b/include/crypto/ecdh.h
@@ -0,0 +1,30 @@
+/*
+ * ECDH params to be used with kpp API
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+#ifndef _CRYPTO_ECDH_
+#define _CRYPTO_ECDH_
+
+/* Curves IDs */
+#define ECC_CURVE_NIST_P192	0x0001
+#define ECC_CURVE_NIST_P256	0x0002
+
+struct ecdh {
+	unsigned short curve_id;
+	char *key;
+	unsigned short key_size;
+};
+
+int crypto_ecdh_key_len(const struct ecdh *params);
+int crypto_ecdh_encode_key(char *buf, unsigned int len, const struct ecdh *p);
+int crypto_ecdh_decode_key(const char *buf, unsigned int len, struct ecdh *p);
+
+#endif
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 1969f1416658..26605888a199 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -547,8 +547,7 @@ static inline void ahash_request_set_tfm(struct ahash_request *req,
  * the allocation, the provided ahash handle
  * is registered in the request data structure.
  *
- * Return: allocated request handle in case of success; IS_ERR() is true in case
- *	   of an error, PTR_ERR() returns the error code.
+ * Return: allocated request handle in case of success, or NULL if out of memory
  */
 static inline struct ahash_request *ahash_request_alloc(
 	struct crypto_ahash *tfm, gfp_t gfp)
diff --git a/include/crypto/internal/aead.h b/include/crypto/internal/aead.h
index da3864991d4c..6ad8e31d3868 100644
--- a/include/crypto/internal/aead.h
+++ b/include/crypto/internal/aead.h
@@ -159,6 +159,27 @@ static inline struct aead_request *aead_get_backlog(struct aead_queue *queue)
 	return req ? container_of(req, struct aead_request, base) : NULL;
 }
 
+static inline unsigned int crypto_aead_alg_chunksize(struct aead_alg *alg)
+{
+	return alg->chunksize;
+}
+
+/**
+ * crypto_aead_chunksize() - obtain chunk size
+ * @tfm: cipher handle
+ *
+ * The block size is set to one for ciphers such as CCM.  However,
+ * you still need to provide incremental updates in multiples of
+ * the underlying block size as the IV does not have sub-block
+ * granularity.  This is known in this API as the chunk size.
+ *
+ * Return: chunk size in bytes
+ */
+static inline unsigned int crypto_aead_chunksize(struct crypto_aead *tfm)
+{
+	return crypto_aead_alg_chunksize(crypto_aead_alg(tfm));
+}
+
 int crypto_register_aead(struct aead_alg *alg);
 void crypto_unregister_aead(struct aead_alg *alg);
 int crypto_register_aeads(struct aead_alg *algs, int count);
diff --git a/include/crypto/internal/geniv.h b/include/crypto/internal/geniv.h
index 59333635e712..2bcfb931bc5b 100644
--- a/include/crypto/internal/geniv.h
+++ b/include/crypto/internal/geniv.h
@@ -20,7 +20,7 @@
 struct aead_geniv_ctx {
 	spinlock_t lock;
 	struct crypto_aead *child;
-	struct crypto_blkcipher *null;
+	struct crypto_skcipher *sknull;
 	u8 salt[] __attribute__ ((aligned(__alignof__(u32))));
 };
 
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index 49dae16f8929..1d4f365d8f03 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -114,14 +114,10 @@ int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
 int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc);
 int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);
 
-int shash_ahash_mcryptd_update(struct ahash_request *req,
-			       struct shash_desc *desc);
-int shash_ahash_mcryptd_final(struct ahash_request *req,
-			      struct shash_desc *desc);
-int shash_ahash_mcryptd_finup(struct ahash_request *req,
-			      struct shash_desc *desc);
-int shash_ahash_mcryptd_digest(struct ahash_request *req,
-			       struct shash_desc *desc);
+int ahash_mcryptd_update(struct ahash_request *desc);
+int ahash_mcryptd_final(struct ahash_request *desc);
+int ahash_mcryptd_finup(struct ahash_request *desc);
+int ahash_mcryptd_digest(struct ahash_request *desc);
 
 int crypto_init_shash_ops_async(struct crypto_tfm *tfm);
 
diff --git a/include/crypto/internal/kpp.h b/include/crypto/internal/kpp.h
new file mode 100644
index 000000000000..ad3acf3649be
--- /dev/null
+++ b/include/crypto/internal/kpp.h
@@ -0,0 +1,64 @@
+/*
+ * Key-agreement Protocol Primitives (KPP)
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+#ifndef _CRYPTO_KPP_INT_H
+#define _CRYPTO_KPP_INT_H
+#include <crypto/kpp.h>
+#include <crypto/algapi.h>
+
+/*
+ * Transform internal helpers.
+ */
+static inline void *kpp_request_ctx(struct kpp_request *req)
+{
+	return req->__ctx;
+}
+
+static inline void *kpp_tfm_ctx(struct crypto_kpp *tfm)
+{
+	return tfm->base.__crt_ctx;
+}
+
+static inline void kpp_request_complete(struct kpp_request *req, int err)
+{
+	req->base.complete(&req->base, err);
+}
+
+static inline const char *kpp_alg_name(struct crypto_kpp *tfm)
+{
+	return crypto_kpp_tfm(tfm)->__crt_alg->cra_name;
+}
+
+/**
+ * crypto_register_kpp() -- Register key-agreement protocol primitives algorithm
+ *
+ * Function registers an implementation of a key-agreement protocol primitive
+ * algorithm
+ *
+ * @alg:	algorithm definition
+ *
+ * Return: zero on success; error code in case of error
+ */
+int crypto_register_kpp(struct kpp_alg *alg);
+
+/**
+ * crypto_unregister_kpp() -- Unregister key-agreement protocol primitive
+ * algorithm
+ *
+ * Function unregisters an implementation of a key-agreement protocol primitive
+ * algorithm
+ *
+ * @alg:	algorithm definition
+ */
+void crypto_unregister_kpp(struct kpp_alg *alg);
+
+#endif
diff --git a/include/crypto/internal/rsa.h b/include/crypto/internal/rsa.h
index c7585bdecbc2..9e8f1590de98 100644
--- a/include/crypto/internal/rsa.h
+++ b/include/crypto/internal/rsa.h
@@ -12,12 +12,44 @@
  */
 #ifndef _RSA_HELPER_
 #define _RSA_HELPER_
-#include <linux/mpi.h>
+#include <linux/types.h>
 
+/**
+ * rsa_key - RSA key structure
+ * @n           : RSA modulus raw byte stream
+ * @e           : RSA public exponent raw byte stream
+ * @d           : RSA private exponent raw byte stream
+ * @p           : RSA prime factor p of n raw byte stream
+ * @q           : RSA prime factor q of n raw byte stream
+ * @dp          : RSA exponent d mod (p - 1) raw byte stream
+ * @dq          : RSA exponent d mod (q - 1) raw byte stream
+ * @qinv        : RSA CRT coefficient q^(-1) mod p raw byte stream
+ * @n_sz        : length in bytes of RSA modulus n
+ * @e_sz        : length in bytes of RSA public exponent
+ * @d_sz        : length in bytes of RSA private exponent
+ * @p_sz        : length in bytes of p field
+ * @q_sz        : length in bytes of q field
+ * @dp_sz       : length in bytes of dp field
+ * @dq_sz       : length in bytes of dq field
+ * @qinv_sz     : length in bytes of qinv field
+ */
 struct rsa_key {
-	MPI n;
-	MPI e;
-	MPI d;
+	const u8 *n;
+	const u8 *e;
+	const u8 *d;
+	const u8 *p;
+	const u8 *q;
+	const u8 *dp;
+	const u8 *dq;
+	const u8 *qinv;
+	size_t n_sz;
+	size_t e_sz;
+	size_t d_sz;
+	size_t p_sz;
+	size_t q_sz;
+	size_t dp_sz;
+	size_t dq_sz;
+	size_t qinv_sz;
 };
 
 int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key,
@@ -26,7 +58,5 @@ int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key,
 int rsa_parse_priv_key(struct rsa_key *rsa_key, const void *key,
 		       unsigned int key_len);
 
-void rsa_free_key(struct rsa_key *rsa_key);
-
 extern struct crypto_template rsa_pkcs1pad_tmpl;
 #endif
diff --git a/include/crypto/internal/skcipher.h b/include/crypto/internal/skcipher.h
index 2cf7a61ece59..a21a95e1a375 100644
--- a/include/crypto/internal/skcipher.h
+++ b/include/crypto/internal/skcipher.h
@@ -19,12 +19,46 @@
 
 struct rtattr;
 
+struct skcipher_instance {
+	void (*free)(struct skcipher_instance *inst);
+	union {
+		struct {
+			char head[offsetof(struct skcipher_alg, base)];
+			struct crypto_instance base;
+		} s;
+		struct skcipher_alg alg;
+	};
+};
+
 struct crypto_skcipher_spawn {
 	struct crypto_spawn base;
 };
 
 extern const struct crypto_type crypto_givcipher_type;
 
+static inline struct crypto_instance *skcipher_crypto_instance(
+	struct skcipher_instance *inst)
+{
+	return &inst->s.base;
+}
+
+static inline struct skcipher_instance *skcipher_alg_instance(
+	struct crypto_skcipher *skcipher)
+{
+	return container_of(crypto_skcipher_alg(skcipher),
+			    struct skcipher_instance, alg);
+}
+
+static inline void *skcipher_instance_ctx(struct skcipher_instance *inst)
+{
+	return crypto_instance_ctx(skcipher_crypto_instance(inst));
+}
+
+static inline void skcipher_request_complete(struct skcipher_request *req, int err)
+{
+	req->base.complete(&req->base, err);
+}
+
 static inline void crypto_set_skcipher_spawn(
 	struct crypto_skcipher_spawn *spawn, struct crypto_instance *inst)
 {
@@ -34,6 +68,12 @@ static inline void crypto_set_skcipher_spawn(
 int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name,
 			 u32 type, u32 mask);
 
+static inline int crypto_grab_skcipher2(struct crypto_skcipher_spawn *spawn,
+					const char *name, u32 type, u32 mask)
+{
+	return crypto_grab_skcipher(spawn, name, type, mask);
+}
+
 struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, u32 mask);
 
 static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn)
@@ -41,54 +81,42 @@ static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn)
 	crypto_drop_spawn(&spawn->base);
 }
 
-static inline struct crypto_alg *crypto_skcipher_spawn_alg(
+static inline struct skcipher_alg *crypto_skcipher_spawn_alg(
 	struct crypto_skcipher_spawn *spawn)
 {
-	return spawn->base.alg;
+	return container_of(spawn->base.alg, struct skcipher_alg, base);
 }
 
-static inline struct crypto_ablkcipher *crypto_spawn_skcipher(
+static inline struct skcipher_alg *crypto_spawn_skcipher_alg(
 	struct crypto_skcipher_spawn *spawn)
 {
-	return __crypto_ablkcipher_cast(
-		crypto_spawn_tfm(&spawn->base, crypto_skcipher_type(0),
-				 crypto_skcipher_mask(0)));
+	return crypto_skcipher_spawn_alg(spawn);
 }
 
-int skcipher_null_givencrypt(struct skcipher_givcrypt_request *req);
-int skcipher_null_givdecrypt(struct skcipher_givcrypt_request *req);
-const char *crypto_default_geniv(const struct crypto_alg *alg);
-
-struct crypto_instance *skcipher_geniv_alloc(struct crypto_template *tmpl,
-					     struct rtattr **tb, u32 type,
-					     u32 mask);
-void skcipher_geniv_free(struct crypto_instance *inst);
-int skcipher_geniv_init(struct crypto_tfm *tfm);
-void skcipher_geniv_exit(struct crypto_tfm *tfm);
-
-static inline struct crypto_ablkcipher *skcipher_geniv_cipher(
-	struct crypto_ablkcipher *geniv)
+static inline struct crypto_skcipher *crypto_spawn_skcipher(
+	struct crypto_skcipher_spawn *spawn)
 {
-	return crypto_ablkcipher_crt(geniv)->base;
+	return crypto_spawn_tfm2(&spawn->base);
 }
 
-static inline int skcipher_enqueue_givcrypt(
-	struct crypto_queue *queue, struct skcipher_givcrypt_request *request)
+static inline struct crypto_skcipher *crypto_spawn_skcipher2(
+	struct crypto_skcipher_spawn *spawn)
 {
-	return ablkcipher_enqueue_request(queue, &request->creq);
+	return crypto_spawn_skcipher(spawn);
 }
 
-static inline struct skcipher_givcrypt_request *skcipher_dequeue_givcrypt(
-	struct crypto_queue *queue)
+static inline void crypto_skcipher_set_reqsize(
+	struct crypto_skcipher *skcipher, unsigned int reqsize)
 {
-	return skcipher_givcrypt_cast(crypto_dequeue_request(queue));
+	skcipher->reqsize = reqsize;
 }
 
-static inline void *skcipher_givcrypt_reqctx(
-	struct skcipher_givcrypt_request *req)
-{
-	return ablkcipher_request_ctx(&req->creq);
-}
+int crypto_register_skcipher(struct skcipher_alg *alg);
+void crypto_unregister_skcipher(struct skcipher_alg *alg);
+int crypto_register_skciphers(struct skcipher_alg *algs, int count);
+void crypto_unregister_skciphers(struct skcipher_alg *algs, int count);
+int skcipher_register_instance(struct crypto_template *tmpl,
+			       struct skcipher_instance *inst);
 
 static inline void ablkcipher_request_complete(struct ablkcipher_request *req,
 					       int err)
@@ -96,12 +124,6 @@ static inline void ablkcipher_request_complete(struct ablkcipher_request *req,
 	req->base.complete(&req->base, err);
 }
 
-static inline void skcipher_givcrypt_complete(
-	struct skcipher_givcrypt_request *req, int err)
-{
-	ablkcipher_request_complete(&req->creq, err);
-}
-
 static inline u32 ablkcipher_request_flags(struct ablkcipher_request *req)
 {
 	return req->base.flags;
@@ -122,5 +144,31 @@ static inline u32 skcipher_request_flags(struct skcipher_request *req)
 	return req->base.flags;
 }
 
+static inline unsigned int crypto_skcipher_alg_min_keysize(
+	struct skcipher_alg *alg)
+{
+	if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
+	    CRYPTO_ALG_TYPE_BLKCIPHER)
+		return alg->base.cra_blkcipher.min_keysize;
+
+	if (alg->base.cra_ablkcipher.encrypt)
+		return alg->base.cra_ablkcipher.min_keysize;
+
+	return alg->min_keysize;
+}
+
+static inline unsigned int crypto_skcipher_alg_max_keysize(
+	struct skcipher_alg *alg)
+{
+	if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
+	    CRYPTO_ALG_TYPE_BLKCIPHER)
+		return alg->base.cra_blkcipher.max_keysize;
+
+	if (alg->base.cra_ablkcipher.encrypt)
+		return alg->base.cra_ablkcipher.max_keysize;
+
+	return alg->max_keysize;
+}
+
 #endif	/* _CRYPTO_INTERNAL_SKCIPHER_H */
 
diff --git a/include/crypto/kpp.h b/include/crypto/kpp.h
new file mode 100644
index 000000000000..30791f75c180
--- /dev/null
+++ b/include/crypto/kpp.h
@@ -0,0 +1,330 @@
+/*
+ * Key-agreement Protocol Primitives (KPP)
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+
+#ifndef _CRYPTO_KPP_
+#define _CRYPTO_KPP_
+#include <linux/crypto.h>
+
+/**
+ * struct kpp_request
+ *
+ * @base:	Common attributes for async crypto requests
+ * @src:	Source data
+ * @dst:	Destination data
+ * @src_len:	Size of the input buffer
+ * @dst_len:	Size of the output buffer. It needs to be at least
+ *		as big as the expected result depending	on the operation
+ *		After operation it will be updated with the actual size of the
+ *		result. In case of error where the dst sgl size was insufficient,
+ *		it will be updated to the size required for the operation.
+ * @__ctx:	Start of private context data
+ */
+struct kpp_request {
+	struct crypto_async_request base;
+	struct scatterlist *src;
+	struct scatterlist *dst;
+	unsigned int src_len;
+	unsigned int dst_len;
+	void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+/**
+ * struct crypto_kpp - user-instantiated object which encapsulate
+ * algorithms and core processing logic
+ *
+ * @base:	Common crypto API algorithm data structure
+ */
+struct crypto_kpp {
+	struct crypto_tfm base;
+};
+
+/**
+ * struct kpp_alg - generic key-agreement protocol primitives
+ *
+ * @set_secret:		Function invokes the protocol specific function to
+ *			store the secret private key along with parameters.
+ *			The implementation knows how to decode thie buffer
+ * @generate_public_key: Function generate the public key to be sent to the
+ *			counterpart. In case of error, where output is not big
+ *			enough req->dst_len will be updated to the size
+ *			required
+ * @compute_shared_secret: Function compute the shared secret as defined by
+ *			the algorithm. The result is given back to the user.
+ *			In case of error, where output is not big enough,
+ *			req->dst_len will be updated to the size required
+ * @max_size:		Function returns the size of the output buffer
+ * @init:		Initialize the object. This is called only once at
+ *			instantiation time. In case the cryptographic hardware
+ *			needs to be initialized. Software fallback should be
+ *			put in place here.
+ * @exit:		Undo everything @init did.
+ *
+ * @reqsize:		Request context size required by algorithm
+ *			implementation
+ * @base		Common crypto API algorithm data structure
+ */
+struct kpp_alg {
+	int (*set_secret)(struct crypto_kpp *tfm, void *buffer,
+			  unsigned int len);
+	int (*generate_public_key)(struct kpp_request *req);
+	int (*compute_shared_secret)(struct kpp_request *req);
+
+	int (*max_size)(struct crypto_kpp *tfm);
+
+	int (*init)(struct crypto_kpp *tfm);
+	void (*exit)(struct crypto_kpp *tfm);
+
+	unsigned int reqsize;
+	struct crypto_alg base;
+};
+
+/**
+ * DOC: Generic Key-agreement Protocol Primitevs API
+ *
+ * The KPP API is used with the algorithm type
+ * CRYPTO_ALG_TYPE_KPP (listed as type "kpp" in /proc/crypto)
+ */
+
+/**
+ * crypto_alloc_kpp() - allocate KPP tfm handle
+ * @alg_name: is the name of the kpp algorithm (e.g. "dh", "ecdh")
+ * @type: specifies the type of the algorithm
+ * @mask: specifies the mask for the algorithm
+ *
+ * Allocate a handle for kpp algorithm. The returned struct crypto_kpp
+ * is requeried for any following API invocation
+ *
+ * Return: allocated handle in case of success; IS_ERR() is true in case of
+ *	   an error, PTR_ERR() returns the error code.
+ */
+struct crypto_kpp *crypto_alloc_kpp(const char *alg_name, u32 type, u32 mask);
+
+static inline struct crypto_tfm *crypto_kpp_tfm(struct crypto_kpp *tfm)
+{
+	return &tfm->base;
+}
+
+static inline struct kpp_alg *__crypto_kpp_alg(struct crypto_alg *alg)
+{
+	return container_of(alg, struct kpp_alg, base);
+}
+
+static inline struct crypto_kpp *__crypto_kpp_tfm(struct crypto_tfm *tfm)
+{
+	return container_of(tfm, struct crypto_kpp, base);
+}
+
+static inline struct kpp_alg *crypto_kpp_alg(struct crypto_kpp *tfm)
+{
+	return __crypto_kpp_alg(crypto_kpp_tfm(tfm)->__crt_alg);
+}
+
+static inline unsigned int crypto_kpp_reqsize(struct crypto_kpp *tfm)
+{
+	return crypto_kpp_alg(tfm)->reqsize;
+}
+
+static inline void kpp_request_set_tfm(struct kpp_request *req,
+				       struct crypto_kpp *tfm)
+{
+	req->base.tfm = crypto_kpp_tfm(tfm);
+}
+
+static inline struct crypto_kpp *crypto_kpp_reqtfm(struct kpp_request *req)
+{
+	return __crypto_kpp_tfm(req->base.tfm);
+}
+
+/**
+ * crypto_free_kpp() - free KPP tfm handle
+ *
+ * @tfm: KPP tfm handle allocated with crypto_alloc_kpp()
+ */
+static inline void crypto_free_kpp(struct crypto_kpp *tfm)
+{
+	crypto_destroy_tfm(tfm, crypto_kpp_tfm(tfm));
+}
+
+/**
+ * kpp_request_alloc() - allocates kpp request
+ *
+ * @tfm:	KPP tfm handle allocated with crypto_alloc_kpp()
+ * @gfp:	allocation flags
+ *
+ * Return: allocated handle in case of success or NULL in case of an error.
+ */
+static inline struct kpp_request *kpp_request_alloc(struct crypto_kpp *tfm,
+						    gfp_t gfp)
+{
+	struct kpp_request *req;
+
+	req = kmalloc(sizeof(*req) + crypto_kpp_reqsize(tfm), gfp);
+	if (likely(req))
+		kpp_request_set_tfm(req, tfm);
+
+	return req;
+}
+
+/**
+ * kpp_request_free() - zeroize and free kpp request
+ *
+ * @req:	request to free
+ */
+static inline void kpp_request_free(struct kpp_request *req)
+{
+	kzfree(req);
+}
+
+/**
+ * kpp_request_set_callback() - Sets an asynchronous callback.
+ *
+ * Callback will be called when an asynchronous operation on a given
+ * request is finished.
+ *
+ * @req:	request that the callback will be set for
+ * @flgs:	specify for instance if the operation may backlog
+ * @cmpl:	callback which will be called
+ * @data:	private data used by the caller
+ */
+static inline void kpp_request_set_callback(struct kpp_request *req,
+					    u32 flgs,
+					    crypto_completion_t cmpl,
+					    void *data)
+{
+	req->base.complete = cmpl;
+	req->base.data = data;
+	req->base.flags = flgs;
+}
+
+/**
+ * kpp_request_set_input() - Sets input buffer
+ *
+ * Sets parameters required by generate_public_key
+ *
+ * @req:	kpp request
+ * @input:	ptr to input scatter list
+ * @input_len:	size of the input scatter list
+ */
+static inline void kpp_request_set_input(struct kpp_request *req,
+					 struct scatterlist *input,
+					 unsigned int input_len)
+{
+	req->src = input;
+	req->src_len = input_len;
+}
+
+/**
+ * kpp_request_set_output() - Sets output buffer
+ *
+ * Sets parameters required by kpp operation
+ *
+ * @req:	kpp request
+ * @output:	ptr to output scatter list
+ * @output_len:	size of the output scatter list
+ */
+static inline void kpp_request_set_output(struct kpp_request *req,
+					  struct scatterlist *output,
+					  unsigned int output_len)
+{
+	req->dst = output;
+	req->dst_len = output_len;
+}
+
+enum {
+	CRYPTO_KPP_SECRET_TYPE_UNKNOWN,
+	CRYPTO_KPP_SECRET_TYPE_DH,
+	CRYPTO_KPP_SECRET_TYPE_ECDH,
+};
+
+/**
+ * struct kpp_secret - small header for packing secret buffer
+ *
+ * @type:	define type of secret. Each kpp type will define its own
+ * @len:	specify the len of the secret, include the header, that
+ *		follows the struct
+ */
+struct kpp_secret {
+	unsigned short type;
+	unsigned short len;
+};
+
+/**
+ * crypto_kpp_set_secret() - Invoke kpp operation
+ *
+ * Function invokes the specific kpp operation for a given alg.
+ *
+ * @tfm:	tfm handle
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_kpp_set_secret(struct crypto_kpp *tfm, void *buffer,
+					unsigned int len)
+{
+	struct kpp_alg *alg = crypto_kpp_alg(tfm);
+
+	return alg->set_secret(tfm, buffer, len);
+}
+
+/**
+ * crypto_kpp_generate_public_key() - Invoke kpp operation
+ *
+ * Function invokes the specific kpp operation for generating the public part
+ * for a given kpp algorithm
+ *
+ * @req:	kpp key request
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_kpp_generate_public_key(struct kpp_request *req)
+{
+	struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+	struct kpp_alg *alg = crypto_kpp_alg(tfm);
+
+	return alg->generate_public_key(req);
+}
+
+/**
+ * crypto_kpp_compute_shared_secret() - Invoke kpp operation
+ *
+ * Function invokes the specific kpp operation for computing the shared secret
+ * for a given kpp algorithm.
+ *
+ * @req:	kpp key request
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_kpp_compute_shared_secret(struct kpp_request *req)
+{
+	struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+	struct kpp_alg *alg = crypto_kpp_alg(tfm);
+
+	return alg->compute_shared_secret(req);
+}
+
+/**
+ * crypto_kpp_maxsize() - Get len for output buffer
+ *
+ * Function returns the output buffer size required
+ *
+ * @tfm:	KPP tfm handle allocated with crypto_alloc_kpp()
+ *
+ * Return: minimum len for output buffer or error code if key hasn't been set
+ */
+static inline int crypto_kpp_maxsize(struct crypto_kpp *tfm)
+{
+	struct kpp_alg *alg = crypto_kpp_alg(tfm);
+
+	return alg->max_size(tfm);
+}
+
+#endif
diff --git a/include/crypto/mcryptd.h b/include/crypto/mcryptd.h
index c23ee1f7ee80..4a53c0d38cd2 100644
--- a/include/crypto/mcryptd.h
+++ b/include/crypto/mcryptd.h
@@ -39,7 +39,7 @@ struct mcryptd_instance_ctx {
 };
 
 struct mcryptd_hash_ctx {
-	struct crypto_shash *child;
+	struct crypto_ahash *child;
 	struct mcryptd_alg_state *alg_state;
 };
 
@@ -59,13 +59,13 @@ struct mcryptd_hash_request_ctx {
 	struct crypto_hash_walk walk;
 	u8 *out;
 	int flag;
-	struct shash_desc desc;
+	struct ahash_request areq;
 };
 
 struct mcryptd_ahash *mcryptd_alloc_ahash(const char *alg_name,
 					u32 type, u32 mask);
-struct crypto_shash *mcryptd_ahash_child(struct mcryptd_ahash *tfm);
-struct shash_desc *mcryptd_shash_desc(struct ahash_request *req);
+struct crypto_ahash *mcryptd_ahash_child(struct mcryptd_ahash *tfm);
+struct ahash_request *mcryptd_ahash_desc(struct ahash_request *req);
 void mcryptd_free_ahash(struct mcryptd_ahash *tfm);
 void mcryptd_flusher(struct work_struct *work);
 
diff --git a/include/crypto/null.h b/include/crypto/null.h
index 06dc30d9f56e..3f0c59fb0a61 100644
--- a/include/crypto/null.h
+++ b/include/crypto/null.h
@@ -8,7 +8,17 @@
 #define NULL_DIGEST_SIZE	0
 #define NULL_IV_SIZE		0
 
-struct crypto_blkcipher *crypto_get_default_null_skcipher(void);
+struct crypto_skcipher *crypto_get_default_null_skcipher(void);
 void crypto_put_default_null_skcipher(void);
 
+static inline struct crypto_skcipher *crypto_get_default_null_skcipher2(void)
+{
+	return crypto_get_default_null_skcipher();
+}
+
+static inline void crypto_put_default_null_skcipher2(void)
+{
+	crypto_put_default_null_skcipher();
+}
+
 #endif
diff --git a/include/crypto/pkcs7.h b/include/crypto/pkcs7.h
index 441aff9b5aa7..583f199400a3 100644
--- a/include/crypto/pkcs7.h
+++ b/include/crypto/pkcs7.h
@@ -12,6 +12,7 @@
 #ifndef _CRYPTO_PKCS7_H
 #define _CRYPTO_PKCS7_H
 
+#include <linux/verification.h>
 #include <crypto/public_key.h>
 
 struct key;
@@ -26,14 +27,13 @@ extern void pkcs7_free_message(struct pkcs7_message *pkcs7);
 
 extern int pkcs7_get_content_data(const struct pkcs7_message *pkcs7,
 				  const void **_data, size_t *_datalen,
-				  bool want_wrapper);
+				  size_t *_headerlen);
 
 /*
  * pkcs7_trust.c
  */
 extern int pkcs7_validate_trust(struct pkcs7_message *pkcs7,
-				struct key *trust_keyring,
-				bool *_trusted);
+				struct key *trust_keyring);
 
 /*
  * pkcs7_verify.c
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
index aa730ea7faf8..882ca0e1e7a5 100644
--- a/include/crypto/public_key.h
+++ b/include/crypto/public_key.h
@@ -15,20 +15,6 @@
 #define _LINUX_PUBLIC_KEY_H
 
 /*
- * The use to which an asymmetric key is being put.
- */
-enum key_being_used_for {
-	VERIFYING_MODULE_SIGNATURE,
-	VERIFYING_FIRMWARE_SIGNATURE,
-	VERIFYING_KEXEC_PE_SIGNATURE,
-	VERIFYING_KEY_SIGNATURE,
-	VERIFYING_KEY_SELF_SIGNATURE,
-	VERIFYING_UNSPECIFIED_SIGNATURE,
-	NR__KEY_BEING_USED_FOR
-};
-extern const char *const key_being_used_for[NR__KEY_BEING_USED_FOR];
-
-/*
  * Cryptographic data for the public-key subtype of the asymmetric key type.
  *
  * Note that this may include private part of the key as well as the public
@@ -41,12 +27,13 @@ struct public_key {
 	const char *pkey_algo;
 };
 
-extern void public_key_destroy(void *payload);
+extern void public_key_free(struct public_key *key);
 
 /*
  * Public key cryptography signature data
  */
 struct public_key_signature {
+	struct asymmetric_key_id *auth_ids[2];
 	u8 *s;			/* Signature */
 	u32 s_size;		/* Number of bytes in signature */
 	u8 *digest;
@@ -55,17 +42,21 @@ struct public_key_signature {
 	const char *hash_algo;
 };
 
+extern void public_key_signature_free(struct public_key_signature *sig);
+
 extern struct asymmetric_key_subtype public_key_subtype;
+
 struct key;
+struct key_type;
+union key_payload;
+
+extern int restrict_link_by_signature(struct key *trust_keyring,
+				      const struct key_type *type,
+				      const union key_payload *payload);
+
 extern int verify_signature(const struct key *key,
 			    const struct public_key_signature *sig);
 
-struct asymmetric_key_id;
-extern struct key *x509_request_asymmetric_key(struct key *keyring,
-					       const struct asymmetric_key_id *id,
-					       const struct asymmetric_key_id *skid,
-					       bool partial);
-
 int public_key_verify_signature(const struct public_key *pkey,
 				const struct public_key_signature *sig);
 
diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h
index 35f99b68d037..880e6be9e95e 100644
--- a/include/crypto/scatterwalk.h
+++ b/include/crypto/scatterwalk.h
@@ -16,14 +16,10 @@
 #ifndef _CRYPTO_SCATTERWALK_H
 #define _CRYPTO_SCATTERWALK_H
 
-#include <asm/kmap_types.h>
 #include <crypto/algapi.h>
-#include <linux/hardirq.h>
 #include <linux/highmem.h>
 #include <linux/kernel.h>
-#include <linux/mm.h>
 #include <linux/scatterlist.h>
-#include <linux/sched.h>
 
 static inline void scatterwalk_crypto_chain(struct scatterlist *head,
 					    struct scatterlist *sg,
@@ -83,17 +79,53 @@ static inline void scatterwalk_unmap(void *vaddr)
 	kunmap_atomic(vaddr);
 }
 
-void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg);
+static inline void scatterwalk_start(struct scatter_walk *walk,
+				     struct scatterlist *sg)
+{
+	walk->sg = sg;
+	walk->offset = sg->offset;
+}
+
+static inline void *scatterwalk_map(struct scatter_walk *walk)
+{
+	return kmap_atomic(scatterwalk_page(walk)) +
+	       offset_in_page(walk->offset);
+}
+
+static inline void scatterwalk_pagedone(struct scatter_walk *walk, int out,
+					unsigned int more)
+{
+	if (out) {
+		struct page *page;
+
+		page = sg_page(walk->sg) + ((walk->offset - 1) >> PAGE_SHIFT);
+		/* Test ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE first as
+		 * PageSlab cannot be optimised away per se due to
+		 * use of volatile pointer.
+		 */
+		if (ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE && !PageSlab(page))
+			flush_dcache_page(page);
+	}
+
+	if (more && walk->offset >= walk->sg->offset + walk->sg->length)
+		scatterwalk_start(walk, sg_next(walk->sg));
+}
+
+static inline void scatterwalk_done(struct scatter_walk *walk, int out,
+				    int more)
+{
+	if (!more || walk->offset >= walk->sg->offset + walk->sg->length ||
+	    !(walk->offset & (PAGE_SIZE - 1)))
+		scatterwalk_pagedone(walk, out, more);
+}
+
 void scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
 			    size_t nbytes, int out);
 void *scatterwalk_map(struct scatter_walk *walk);
-void scatterwalk_done(struct scatter_walk *walk, int out, int more);
 
 void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg,
 			      unsigned int start, unsigned int nbytes, int out);
 
-int scatterwalk_bytes_sglen(struct scatterlist *sg, int num_bytes);
-
 struct scatterlist *scatterwalk_ffwd(struct scatterlist dst[2],
 				     struct scatterlist *src,
 				     unsigned int len);
diff --git a/include/crypto/sha3.h b/include/crypto/sha3.h
new file mode 100644
index 000000000000..f4c9f68f5ffe
--- /dev/null
+++ b/include/crypto/sha3.h
@@ -0,0 +1,29 @@
+/*
+ * Common values for SHA-3 algorithms
+ */
+#ifndef __CRYPTO_SHA3_H__
+#define __CRYPTO_SHA3_H__
+
+#define SHA3_224_DIGEST_SIZE	(224 / 8)
+#define SHA3_224_BLOCK_SIZE	(200 - 2 * SHA3_224_DIGEST_SIZE)
+
+#define SHA3_256_DIGEST_SIZE	(256 / 8)
+#define SHA3_256_BLOCK_SIZE	(200 - 2 * SHA3_256_DIGEST_SIZE)
+
+#define SHA3_384_DIGEST_SIZE	(384 / 8)
+#define SHA3_384_BLOCK_SIZE	(200 - 2 * SHA3_384_DIGEST_SIZE)
+
+#define SHA3_512_DIGEST_SIZE	(512 / 8)
+#define SHA3_512_BLOCK_SIZE	(200 - 2 * SHA3_512_DIGEST_SIZE)
+
+struct sha3_state {
+	u64		st[25];
+	unsigned int	md_len;
+	unsigned int	rsiz;
+	unsigned int	rsizw;
+
+	unsigned int	partial;
+	u8		buf[SHA3_224_BLOCK_SIZE];
+};
+
+#endif
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index 905490c1da89..cc4d98a7892e 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -65,86 +65,80 @@ struct crypto_skcipher {
 	struct crypto_tfm base;
 };
 
-#define SKCIPHER_REQUEST_ON_STACK(name, tfm) \
-	char __##name##_desc[sizeof(struct skcipher_request) + \
-		crypto_skcipher_reqsize(tfm)] CRYPTO_MINALIGN_ATTR; \
-	struct skcipher_request *name = (void *)__##name##_desc
-
-static inline struct crypto_ablkcipher *skcipher_givcrypt_reqtfm(
-	struct skcipher_givcrypt_request *req)
-{
-	return crypto_ablkcipher_reqtfm(&req->creq);
-}
+/**
+ * struct skcipher_alg - symmetric key cipher definition
+ * @min_keysize: Minimum key size supported by the transformation. This is the
+ *		 smallest key length supported by this transformation algorithm.
+ *		 This must be set to one of the pre-defined values as this is
+ *		 not hardware specific. Possible values for this field can be
+ *		 found via git grep "_MIN_KEY_SIZE" include/crypto/
+ * @max_keysize: Maximum key size supported by the transformation. This is the
+ *		 largest key length supported by this transformation algorithm.
+ *		 This must be set to one of the pre-defined values as this is
+ *		 not hardware specific. Possible values for this field can be
+ *		 found via git grep "_MAX_KEY_SIZE" include/crypto/
+ * @setkey: Set key for the transformation. This function is used to either
+ *	    program a supplied key into the hardware or store the key in the
+ *	    transformation context for programming it later. Note that this
+ *	    function does modify the transformation context. This function can
+ *	    be called multiple times during the existence of the transformation
+ *	    object, so one must make sure the key is properly reprogrammed into
+ *	    the hardware. This function is also responsible for checking the key
+ *	    length for validity. In case a software fallback was put in place in
+ *	    the @cra_init call, this function might need to use the fallback if
+ *	    the algorithm doesn't support all of the key sizes.
+ * @encrypt: Encrypt a scatterlist of blocks. This function is used to encrypt
+ *	     the supplied scatterlist containing the blocks of data. The crypto
+ *	     API consumer is responsible for aligning the entries of the
+ *	     scatterlist properly and making sure the chunks are correctly
+ *	     sized. In case a software fallback was put in place in the
+ *	     @cra_init call, this function might need to use the fallback if
+ *	     the algorithm doesn't support all of the key sizes. In case the
+ *	     key was stored in transformation context, the key might need to be
+ *	     re-programmed into the hardware in this function. This function
+ *	     shall not modify the transformation context, as this function may
+ *	     be called in parallel with the same transformation object.
+ * @decrypt: Decrypt a single block. This is a reverse counterpart to @encrypt
+ *	     and the conditions are exactly the same.
+ * @init: Initialize the cryptographic transformation object. This function
+ *	  is used to initialize the cryptographic transformation object.
+ *	  This function is called only once at the instantiation time, right
+ *	  after the transformation context was allocated. In case the
+ *	  cryptographic hardware has some special requirements which need to
+ *	  be handled by software, this function shall check for the precise
+ *	  requirement of the transformation and put any software fallbacks
+ *	  in place.
+ * @exit: Deinitialize the cryptographic transformation object. This is a
+ *	  counterpart to @init, used to remove various changes set in
+ *	  @init.
+ * @ivsize: IV size applicable for transformation. The consumer must provide an
+ *	    IV of exactly that size to perform the encrypt or decrypt operation.
+ * @chunksize: Equal to the block size except for stream ciphers such as
+ *	       CTR where it is set to the underlying block size.
+ * @base: Definition of a generic crypto algorithm.
+ *
+ * All fields except @ivsize are mandatory and must be filled.
+ */
+struct skcipher_alg {
+	int (*setkey)(struct crypto_skcipher *tfm, const u8 *key,
+	              unsigned int keylen);
+	int (*encrypt)(struct skcipher_request *req);
+	int (*decrypt)(struct skcipher_request *req);
+	int (*init)(struct crypto_skcipher *tfm);
+	void (*exit)(struct crypto_skcipher *tfm);
 
-static inline int crypto_skcipher_givencrypt(
-	struct skcipher_givcrypt_request *req)
-{
-	struct ablkcipher_tfm *crt =
-		crypto_ablkcipher_crt(skcipher_givcrypt_reqtfm(req));
-	return crt->givencrypt(req);
-};
+	unsigned int min_keysize;
+	unsigned int max_keysize;
+	unsigned int ivsize;
+	unsigned int chunksize;
 
-static inline int crypto_skcipher_givdecrypt(
-	struct skcipher_givcrypt_request *req)
-{
-	struct ablkcipher_tfm *crt =
-		crypto_ablkcipher_crt(skcipher_givcrypt_reqtfm(req));
-	return crt->givdecrypt(req);
+	struct crypto_alg base;
 };
 
-static inline void skcipher_givcrypt_set_tfm(
-	struct skcipher_givcrypt_request *req, struct crypto_ablkcipher *tfm)
-{
-	req->creq.base.tfm = crypto_ablkcipher_tfm(tfm);
-}
-
-static inline struct skcipher_givcrypt_request *skcipher_givcrypt_cast(
-	struct crypto_async_request *req)
-{
-	return container_of(ablkcipher_request_cast(req),
-			    struct skcipher_givcrypt_request, creq);
-}
-
-static inline struct skcipher_givcrypt_request *skcipher_givcrypt_alloc(
-	struct crypto_ablkcipher *tfm, gfp_t gfp)
-{
-	struct skcipher_givcrypt_request *req;
-
-	req = kmalloc(sizeof(struct skcipher_givcrypt_request) +
-		      crypto_ablkcipher_reqsize(tfm), gfp);
-
-	if (likely(req))
-		skcipher_givcrypt_set_tfm(req, tfm);
-
-	return req;
-}
-
-static inline void skcipher_givcrypt_free(struct skcipher_givcrypt_request *req)
-{
-	kfree(req);
-}
-
-static inline void skcipher_givcrypt_set_callback(
-	struct skcipher_givcrypt_request *req, u32 flags,
-	crypto_completion_t compl, void *data)
-{
-	ablkcipher_request_set_callback(&req->creq, flags, compl, data);
-}
-
-static inline void skcipher_givcrypt_set_crypt(
-	struct skcipher_givcrypt_request *req,
-	struct scatterlist *src, struct scatterlist *dst,
-	unsigned int nbytes, void *iv)
-{
-	ablkcipher_request_set_crypt(&req->creq, src, dst, nbytes, iv);
-}
-
-static inline void skcipher_givcrypt_set_giv(
-	struct skcipher_givcrypt_request *req, u8 *giv, u64 seq)
-{
-	req->giv = giv;
-	req->seq = seq;
-}
+#define SKCIPHER_REQUEST_ON_STACK(name, tfm) \
+	char __##name##_desc[sizeof(struct skcipher_request) + \
+		crypto_skcipher_reqsize(tfm)] CRYPTO_MINALIGN_ATTR; \
+	struct skcipher_request *name = (void *)__##name##_desc
 
 /**
  * DOC: Symmetric Key Cipher API
@@ -231,12 +225,43 @@ static inline int crypto_has_skcipher(const char *alg_name, u32 type,
 			      crypto_skcipher_mask(mask));
 }
 
+/**
+ * crypto_has_skcipher2() - Search for the availability of an skcipher.
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ *	      skcipher
+ * @type: specifies the type of the skcipher
+ * @mask: specifies the mask for the skcipher
+ *
+ * Return: true when the skcipher is known to the kernel crypto API; false
+ *	   otherwise
+ */
+int crypto_has_skcipher2(const char *alg_name, u32 type, u32 mask);
+
 static inline const char *crypto_skcipher_driver_name(
 	struct crypto_skcipher *tfm)
 {
 	return crypto_tfm_alg_driver_name(crypto_skcipher_tfm(tfm));
 }
 
+static inline struct skcipher_alg *crypto_skcipher_alg(
+	struct crypto_skcipher *tfm)
+{
+	return container_of(crypto_skcipher_tfm(tfm)->__crt_alg,
+			    struct skcipher_alg, base);
+}
+
+static inline unsigned int crypto_skcipher_alg_ivsize(struct skcipher_alg *alg)
+{
+	if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
+	    CRYPTO_ALG_TYPE_BLKCIPHER)
+		return alg->base.cra_blkcipher.ivsize;
+
+	if (alg->base.cra_ablkcipher.encrypt)
+		return alg->base.cra_ablkcipher.ivsize;
+
+	return alg->ivsize;
+}
+
 /**
  * crypto_skcipher_ivsize() - obtain IV size
  * @tfm: cipher handle
@@ -251,6 +276,36 @@ static inline unsigned int crypto_skcipher_ivsize(struct crypto_skcipher *tfm)
 	return tfm->ivsize;
 }
 
+static inline unsigned int crypto_skcipher_alg_chunksize(
+	struct skcipher_alg *alg)
+{
+	if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
+	    CRYPTO_ALG_TYPE_BLKCIPHER)
+		return alg->base.cra_blocksize;
+
+	if (alg->base.cra_ablkcipher.encrypt)
+		return alg->base.cra_blocksize;
+
+	return alg->chunksize;
+}
+
+/**
+ * crypto_skcipher_chunksize() - obtain chunk size
+ * @tfm: cipher handle
+ *
+ * The block size is set to one for ciphers such as CTR.  However,
+ * you still need to provide incremental updates in multiples of
+ * the underlying block size as the IV does not have sub-block
+ * granularity.  This is known in this API as the chunk size.
+ *
+ * Return: chunk size in bytes
+ */
+static inline unsigned int crypto_skcipher_chunksize(
+	struct crypto_skcipher *tfm)
+{
+	return crypto_skcipher_alg_chunksize(crypto_skcipher_alg(tfm));
+}
+
 /**
  * crypto_skcipher_blocksize() - obtain block size of cipher
  * @tfm: cipher handle
@@ -425,8 +480,7 @@ static inline struct skcipher_request *skcipher_request_cast(
  * encrypt and decrypt API calls. During the allocation, the provided skcipher
  * handle is registered in the request data structure.
  *
- * Return: allocated request handle in case of success; IS_ERR() is true in case
- *	   of an error, PTR_ERR() returns the error code.
+ * Return: allocated request handle in case of success, or NULL if out of memory
  */
 static inline struct skcipher_request *skcipher_request_alloc(
 	struct crypto_skcipher *tfm, gfp_t gfp)