From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756287AbaJXLTu (ORCPT ); Fri, 24 Oct 2014 07:19:50 -0400 Received: from mail-qa0-f51.google.com ([209.85.216.51]:52903 "EHLO mail-qa0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756256AbaJXLTt (ORCPT ); Fri, 24 Oct 2014 07:19:49 -0400 Date: Fri, 24 Oct 2014 06:17:42 -0500 From: Eric Rost To: gregkh@linuxfoundation.org, jason@lakedaemon.net, jake@lwn.net, antonysaraev@gmail.com Cc: devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 3/7] staging: skein: Adds CryptoAPI Support Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adds CryptoAPI support to the Skein Hashing Algorithm driver. Signed-off-by: Eric Rost --- drivers/staging/skein/Makefile | 3 +- drivers/staging/skein/skein_generic.c | 191 ++++++++++++++++++++++++++++++++++ 2 files changed, 193 insertions(+), 1 deletion(-) create mode 100644 drivers/staging/skein/skein_generic.c diff --git a/drivers/staging/skein/Makefile b/drivers/staging/skein/Makefile index ca746a9..d8177cc 100644 --- a/drivers/staging/skein/Makefile +++ b/drivers/staging/skein/Makefile @@ -5,4 +5,5 @@ obj-$(CONFIG_CRYPTO_SKEIN) += skein_base.o \ skein_api.o \ skein_block.o \ threefish_block.o \ - threefish_api.o + threefish_api.o \ + skein_generic.o diff --git a/drivers/staging/skein/skein_generic.c b/drivers/staging/skein/skein_generic.c new file mode 100644 index 0000000..39332e8 --- /dev/null +++ b/drivers/staging/skein/skein_generic.c @@ -0,0 +1,191 @@ +/* + * Cryptographic API. + * + * Skein256 Hash Algorithm. + * + * Derived from cryptoapi implementation, adapted for in-place + * scatterlist interface. + * + * Copyright (c) Eric Rost + * + * 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. + * + */ +#include +#include +#include +#include "skein_base.h" + + +static int skein256_init(struct shash_desc *desc) +{ + return skein_256_init((struct skein_256_ctx *) shash_desc_ctx(desc), + SKEIN256_DIGEST_BIT_SIZE); +} + +int skein256_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return skein_256_update((struct skein_256_ctx *)shash_desc_ctx(desc), + data, len); +} + +static int skein256_final(struct shash_desc *desc, u8 *out) +{ + return skein_256_final((struct skein_256_ctx *)shash_desc_ctx(desc), + out); +} + +static int skein256_export(struct shash_desc *desc, void *out) +{ + struct skein_256_ctx *sctx = shash_desc_ctx(desc); + + memcpy(out, sctx, sizeof(*sctx)); + return 0; +} + +static int skein256_import(struct shash_desc *desc, const void *in) +{ + struct skein_256_ctx *sctx = shash_desc_ctx(desc); + + memcpy(sctx, in, sizeof(*sctx)); + return 0; +} + +static int skein512_init(struct shash_desc *desc) +{ + return skein_512_init((struct skein_512_ctx *)shash_desc_ctx(desc), + SKEIN512_DIGEST_BIT_SIZE); +} + +int skein512_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return skein_512_update((struct skein_512_ctx *)shash_desc_ctx(desc), + data, len); +} + +static int skein512_final(struct shash_desc *desc, u8 *out) +{ + return skein_512_final((struct skein_512_ctx *)shash_desc_ctx(desc), + out); +} + +static int skein512_export(struct shash_desc *desc, void *out) +{ + struct skein_512_ctx *sctx = shash_desc_ctx(desc); + + memcpy(out, sctx, sizeof(*sctx)); + return 0; +} + +static int skein512_import(struct shash_desc *desc, const void *in) +{ + struct skein_512_ctx *sctx = shash_desc_ctx(desc); + + memcpy(sctx, in, sizeof(*sctx)); + return 0; +} + +static int skein1024_init(struct shash_desc *desc) +{ + return skein_1024_init((struct skein_1024_ctx *)shash_desc_ctx(desc), + SKEIN1024_DIGEST_BIT_SIZE); +} + +int skein1024_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return skein_1024_update((struct skein_1024_ctx *)shash_desc_ctx(desc), + data, len); +} + +static int skein1024_final(struct shash_desc *desc, u8 *out) +{ + return skein_1024_final((struct skein_1024_ctx *)shash_desc_ctx(desc), + out); +} + +static int skein1024_export(struct shash_desc *desc, void *out) +{ + struct skein_1024_ctx *sctx = shash_desc_ctx(desc); + + memcpy(out, sctx, sizeof(*sctx)); + return 0; +} + +static int skein1024_import(struct shash_desc *desc, const void *in) +{ + struct skein_1024_ctx *sctx = shash_desc_ctx(desc); + + memcpy(sctx, in, sizeof(*sctx)); + return 0; +} + +static struct shash_alg alg256 = { + .digestsize = (SKEIN256_DIGEST_BIT_SIZE / 8), + .init = skein256_init, + .update = skein256_update, + .final = skein256_final, + .export = skein256_export, + .import = skein256_import, + .descsize = sizeof(struct skein_256_ctx), + .statesize = sizeof(struct skein_256_ctx), + .base = { + .cra_name = "skein256", + .cra_driver_name = "skein", + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SKEIN_256_BLOCK_BYTES, + } +}; + +static struct shash_alg alg512 = { + .digestsize = (SKEIN512_DIGEST_BIT_SIZE / 8), + .init = skein512_init, + .update = skein512_update, + .final = skein512_final, + .export = skein512_export, + .import = skein512_import, + .descsize = sizeof(struct skein_512_ctx), + .statesize = sizeof(struct skein_512_ctx), + .base = { + .cra_name = "skein512", + .cra_driver_name = "skein", + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SKEIN_512_BLOCK_BYTES, + } +}; + +static struct shash_alg alg1024 = { + .digestsize = (SKEIN1024_DIGEST_BIT_SIZE / 8), + .init = skein1024_init, + .update = skein1024_update, + .final = skein1024_final, + .export = skein1024_export, + .import = skein1024_import, + .descsize = sizeof(struct skein_1024_ctx), + .statesize = sizeof(struct skein_1024_ctx), + .base = { + .cra_name = "skein1024", + .cra_driver_name = "skein", + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SKEIN_1024_BLOCK_BYTES, + } +}; + +static int __init skein_generic_init(void) +{ + if (crypto_register_shash(&alg256) || crypto_register_shash(&alg512) + || crypto_register_shash(&alg1024)) { + crypto_unregister_shash(&alg256); + crypto_unregister_shash(&alg512); + crypto_unregister_shash(&alg1024); + return -1; + } + return 0; +} + +device_initcall(skein_generic_init); -- 2.1.1