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Commit 964f3b3b authored by David Howells's avatar David Howells Committed by Rusty Russell
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KEYS: Implement asymmetric key type 



Create a key type that can be used to represent an asymmetric key type for use
in appropriate cryptographic operations, such as encryption, decryption,
signature generation and signature verification.

The key type is "asymmetric" and can provide access to a variety of
cryptographic algorithms.

Possibly, this would be better as "public_key" - but that has the disadvantage
that "public key" is an overloaded term.

Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 9a83b465

crypto/Kconfig

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@@ -1043,5 +1043,6 @@ config CRYPTO_USER_API_SKCIPHER 
	  key cipher algorithms.



source "drivers/crypto/Kconfig"

source crypto/asymmetric_keys/Kconfig



endif	# if CRYPTO

crypto/Makefile

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@@ -96,3 +96,4 @@ obj-$(CONFIG_CRYPTO_USER_API_SKCIPHER) += algif_skcipher.o 
#

obj-$(CONFIG_XOR_BLOCKS) += xor.o

obj-$(CONFIG_ASYNC_CORE) += async_tx/

obj-$(CONFIG_ASYMMETRIC_KEY_TYPE) += asymmetric_keys/

crypto/asymmetric_keys/Kconfig

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menuconfig ASYMMETRIC_KEY_TYPE

	tristate "Asymmetric (public-key cryptographic) key type"

	depends on KEYS

	help

	  This option provides support for a key type that holds the data for

	  the asymmetric keys used for public key cryptographic operations such

	  as encryption, decryption, signature generation and signature

	  verification.



if ASYMMETRIC_KEY_TYPE





endif # ASYMMETRIC_KEY_TYPE

crypto/asymmetric_keys/Makefile

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#

# Makefile for asymmetric cryptographic keys

#



obj-$(CONFIG_ASYMMETRIC_KEY_TYPE) += asymmetric_keys.o



asymmetric_keys-y := asymmetric_type.o

crypto/asymmetric_keys/asymmetric_keys.h

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/* Internal definitions for asymmetric key type

 *

 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.

 * Written by David Howells (dhowells@redhat.com)

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public Licence

 * as published by the Free Software Foundation; either version

 * 2 of the Licence, or (at your option) any later version.

 */



static inline const char *asymmetric_key_id(const struct key *key)

{

	return key->type_data.p[1];

}