crypto: skcipher - remove the "blkcipher" algorithm type

   :doc: Block Cipher Algorithm Definitions

.. kernel-doc:: include/linux/crypto.h

   :functions: crypto_alg ablkcipher_alg blkcipher_alg cipher_alg compress_alg

   :functions: crypto_alg ablkcipher_alg cipher_alg compress_alg

Symmetric Key Cipher API

------------------------

.. kernel-doc:: include/linux/crypto.h

   :functions: crypto_ablkcipher_reqsize ablkcipher_request_set_tfm ablkcipher_request_alloc ablkcipher_request_free ablkcipher_request_set_callback ablkcipher_request_set_crypt

Synchronous Block Cipher API - Deprecated

-----------------------------------------

.. kernel-doc:: include/linux/crypto.h

   :doc: Synchronous Block Cipher API

.. kernel-doc:: include/linux/crypto.h

   :functions: crypto_alloc_blkcipher crypto_free_blkcipher crypto_has_blkcipher crypto_blkcipher_name crypto_blkcipher_ivsize crypto_blkcipher_blocksize crypto_blkcipher_setkey crypto_blkcipher_encrypt crypto_blkcipher_encrypt_iv crypto_blkcipher_decrypt crypto_blkcipher_decrypt_iv crypto_blkcipher_set_iv crypto_blkcipher_get_iv

-  CRYPTO_ALG_TYPE_AEAD Authenticated Encryption with Associated Data

   (MAC)

-  CRYPTO_ALG_TYPE_BLKCIPHER Synchronous multi-block cipher

-  CRYPTO_ALG_TYPE_ABLKCIPHER Asynchronous multi-block cipher

-  CRYPTO_ALG_TYPE_KPP Key-agreement Protocol Primitive (KPP) such as

overhead as the kernel crypto API needs to perform the realignment of

the data which may imply moving of data.

Cipher Definition With struct blkcipher_alg and ablkcipher_alg

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Cipher Definition With struct skcipher_alg

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Struct blkcipher_alg defines a synchronous block cipher whereas struct

ablkcipher_alg defines an asynchronous block cipher.

Struct skcipher_alg defines a multi-block cipher, or more generally, a

length-preserving symmetric cipher algorithm.

Please refer to the single block cipher description for schematics of

the block cipher usage.

Scatterlist handling

~~~~~~~~~~~~~~~~~~~~

Specifics Of Asynchronous Multi-Block Cipher

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

There are a couple of specifics to the asynchronous interface.

First of all, some of the drivers will want to use the Generic

ScatterWalk in case the hardware needs to be fed separate chunks of the

scatterlist which contains the plaintext and will contain the

ciphertext. Please refer to the ScatterWalk interface offered by the

Linux kernel scatter / gather list implementation.

Some drivers will want to use the Generic ScatterWalk in case the

hardware needs to be fed separate chunks of the scatterlist which

contains the plaintext and will contain the ciphertext. Please refer

to the ScatterWalk interface offered by the Linux kernel scatter /

gather list implementation.

Hashing [HASH]

--------------

obj-$(CONFIG_CRYPTO_AEAD2) += aead.o

crypto_blkcipher-y := ablkcipher.o

crypto_blkcipher-y += blkcipher.o

crypto_blkcipher-y += skcipher.o

obj-$(CONFIG_CRYPTO_BLKCIPHER2) += crypto_blkcipher.o

obj-$(CONFIG_CRYPTO_SEQIV) += seqiv.o

 *

 *	The returned transform is of a non-determinate type.  Most people

 *	should use one of the more specific allocation functions such as

 *	crypto_alloc_blkcipher.

 *	crypto_alloc_skcipher().

 *

 *	In case of error the return value is an error pointer.

 */