c0153b0b90
That Bluetooth SMP knows about the private key is pointless, since the detection of debug key usage is actually via the public key portion. With this patch, the Bluetooth SMP will stop keeping a copy of the ecdh private key and will let the crypto subsystem to generate and handle the ecdh private key, potentially benefiting of hardware ecc private key generation and retention. The loop that tries to generate a correct private key is now removed and we trust the crypto subsystem to generate a correct private key. This backup logic should be done in crypto, if really needed. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
30 lines
1.4 KiB
C
30 lines
1.4 KiB
C
/*
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* ECDH helper functions - KPP wrappings
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*
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* Copyright (C) 2017 Intel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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* CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
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* COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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* SOFTWARE IS DISCLAIMED.
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*/
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#include <crypto/kpp.h>
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#include <linux/types.h>
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int compute_ecdh_secret(struct crypto_kpp *tfm, const u8 pair_public_key[64],
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u8 secret[32]);
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int set_ecdh_privkey(struct crypto_kpp *tfm, const u8 *private_key);
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int generate_ecdh_public_key(struct crypto_kpp *tfm, u8 public_key[64]);
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int generate_ecdh_keys(struct crypto_kpp *tfm, u8 public_key[64]);
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