From: Fam Zheng <famz@redhat.com>
To: "Daniel P. Berrange" <berrange@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
qemu-devel@nongnu.org, qemu-block@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v2 05/17] crypto: add support for anti-forensic split algorithm
Date: Thu, 21 Jan 2016 16:37:28 +0800 [thread overview]
Message-ID: <20160121083728.GG31960@ad.usersys.redhat.com> (raw)
In-Reply-To: <1453311539-1193-6-git-send-email-berrange@redhat.com>
On Wed, 01/20 17:38, Daniel P. Berrange wrote:
> diff --git a/crypto/afsplit.c b/crypto/afsplit.c
> new file mode 100644
> index 0000000..42529e7
> --- /dev/null
> +++ b/crypto/afsplit.c
> @@ -0,0 +1,162 @@
> +/*
> + * QEMU Crypto anti forensic information splitter
> + *
> + * Copyright (c) 2015-2016 Red Hat, Inc.
> + *
> + * Derived from cryptsetup package lib/lusk1/af.c
s/lusk1/luks1/
> + *
> + * Copyright (C) 2004, Clemens Fruhwirth <clemens@endorphin.org>
> + * Copyright (C) 2009-2012, Red Hat, Inc. All rights reserved.
> + *
> + * This library 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.
> + *
> + * This library is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with this library; if not, see <http://www.gnu.org/licenses/>.
> + *
> + */
> +
<snip>
> +
> +/**
> + * qcrypto_afsplit_encode:
> + * @hash: the hash algorithm to use for data expansion
> + * @blocklen: the size of @in in bytes
> + * @stripes: the number of times to expand @in in size
> + * @in: the master key to be expanded in size
> + * @out: preallocted buffer to hold the split key
> + * @errp: pointer to a NULL-initialized error object
> + *
> + * Split the data in @in, which is @blocklen bytes in
> + * size, to form a larger piece of data @out, which is
> + * @blocklen * @stripes bytes in size.
> + *
> + * Returns: 0 on success, -1 on error;
> + */
> +int qcrypto_afsplit_encode(QCryptoHashAlgorithm hash,
> + size_t blocklen,
> + uint32_t stripes,
> + const uint8_t *in,
> + uint8_t *out,
> + Error **errp);
> +
> +/**
> + * qcrypto_afsplit_decode:
> + * @hash: the hash algorithm to use for data compression
> + * @blocklen: the size of @out in bytes
> + * @stripes: the number of times to decrease @in in size
> + * @in: the master key to be expanded in size
> + * @out: preallocted buffer to hold the split key
I think the descriptions for @in and @out are wrong.
> + * @errp: pointer to a NULL-initialized error object
> + *
> + * Join the data in @in, which is @blocklen * @stripes
> + * bytes in size, to form the original small piece o
piece of
> + * data @out, which is @blocklen bytes in size.
> + *
> + * Returns: 0 on success, -1 on error;
> + */
> +int qcrypto_afsplit_decode(QCryptoHashAlgorithm hash,
> + size_t blocklen,
> + uint32_t stripes,
> + const uint8_t *in,
> + uint8_t *out,
> + Error **errp);
> +
> +#endif /* QCRYPTO_AFSPLIT_H__ */
Fam
next prev parent reply other threads:[~2016-01-21 8:37 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-20 17:38 [Qemu-devel] [PATCH v2 00/17] Support LUKS encryption in block devices Daniel P. Berrange
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 01/17] crypto: ensure qcrypto_hash_digest_len is always defined Daniel P. Berrange
2016-01-21 6:12 ` Fam Zheng
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 02/17] crypto: add cryptographic random byte source Daniel P. Berrange
2016-01-21 6:12 ` Fam Zheng
2016-01-21 8:59 ` Daniel P. Berrange
2016-02-04 17:44 ` Eric Blake
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 03/17] crypto: add support for PBKDF2 algorithm Daniel P. Berrange
2016-01-21 6:59 ` Fam Zheng
2016-01-21 10:59 ` Daniel P. Berrange
2016-02-04 22:14 ` Eric Blake
2016-02-05 9:23 ` Daniel P. Berrange
2016-02-05 10:13 ` Daniel P. Berrange
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 04/17] crypto: add support for generating initialization vectors Daniel P. Berrange
2016-01-21 7:51 ` Fam Zheng
2016-01-21 11:00 ` Daniel P. Berrange
2016-02-04 22:57 ` Eric Blake
2016-02-05 10:23 ` Daniel P. Berrange
2016-02-05 13:23 ` Daniel P. Berrange
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 05/17] crypto: add support for anti-forensic split algorithm Daniel P. Berrange
2016-01-21 8:37 ` Fam Zheng [this message]
2016-01-21 11:01 ` Daniel P. Berrange
2016-02-04 23:26 ` Eric Blake
2016-02-05 12:37 ` Daniel P. Berrange
2016-02-05 12:39 ` Daniel P. Berrange
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 06/17] crypto: add block encryption framework Daniel P. Berrange
2016-02-05 0:23 ` Eric Blake
2016-02-05 12:43 ` Daniel P. Berrange
2016-02-05 18:48 ` Eric Blake
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 07/17] crypto: implement the LUKS block encryption format Daniel P. Berrange
2016-02-05 17:38 ` Eric Blake
2016-02-08 16:03 ` Daniel P. Berrange
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 08/17] block: add flag to indicate that no I/O will be performed Daniel P. Berrange
2016-02-05 19:08 ` Eric Blake
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 09/17] qemu-img/qemu-io: don't prompt for passwords if not required Daniel P. Berrange
2016-02-05 19:52 ` Eric Blake
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 10/17] block: add generic full disk encryption driver Daniel P. Berrange
2016-01-21 9:12 ` Fam Zheng
2016-01-21 11:02 ` Daniel P. Berrange
2016-01-21 13:01 ` Fam Zheng
2016-01-21 13:12 ` Daniel P. Berrange
2016-02-05 22:20 ` Eric Blake
2016-02-08 16:28 ` Daniel P. Berrange
2016-02-08 20:23 ` Eric Blake
2016-02-09 9:55 ` Daniel P. Berrange
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 11/17] qcow2: make qcow2_encrypt_sectors encrypt in place Daniel P. Berrange
2016-01-21 9:13 ` Fam Zheng
2016-02-05 23:22 ` Eric Blake
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 12/17] qcow2: convert QCow2 to use QCryptoBlock for encryption Daniel P. Berrange
2016-01-21 9:54 ` Fam Zheng
2016-01-21 10:50 ` Daniel P. Berrange
2016-01-21 13:56 ` Fam Zheng
2016-01-21 14:03 ` Daniel P. Berrange
2016-02-08 18:12 ` Eric Blake
2016-02-09 12:32 ` Daniel P. Berrange
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 13/17] qcow: make encrypt_sectors encrypt in place Daniel P. Berrange
2016-02-08 20:30 ` Eric Blake
2016-02-09 12:33 ` Daniel P. Berrange
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 14/17] qcow: convert QCow to use QCryptoBlock for encryption Daniel P. Berrange
2016-02-08 20:57 ` Eric Blake
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 15/17] block: rip out all traces of password prompting Daniel P. Berrange
2016-01-21 13:02 ` Fam Zheng
2016-01-21 13:11 ` Daniel P. Berrange
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 16/17] block: remove all encryption handling APIs Daniel P. Berrange
2016-02-08 21:23 ` Eric Blake
2016-02-09 12:34 ` Daniel P. Berrange
2016-01-20 17:38 ` [Qemu-devel] [PATCH v2 17/17] block: remove support for legecy AES qcow/qcow2 encryption Daniel P. Berrange
2016-02-08 21:26 ` Eric Blake
2016-02-09 12:35 ` Daniel P. Berrange
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