28 lines
907 B
C
28 lines
907 B
C
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/*
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* Shared Dragonfly functionality
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* Copyright (c) 2012-2016, Jouni Malinen <j@w1.fi>
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* Copyright (c) 2019, The Linux Foundation
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "utils/includes.h"
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#include "utils/common.h"
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#include "dragonfly.h"
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int dragonfly_suitable_group(int group, int ecc_only)
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{
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/* Enforce REVmd rules on which SAE groups are suitable for production
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* purposes: FFC groups whose prime is >= 3072 bits and ECC groups
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* defined over a prime field whose prime is >= 256 bits. Furthermore,
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* ECC groups defined over a characteristic 2 finite field and ECC
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* groups with a co-factor greater than 1 are not suitable. */
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return group == 19 || group == 20 || group == 21 ||
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group == 28 || group == 29 || group == 30 ||
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(!ecc_only &&
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(group == 15 || group == 16 || group == 17 || group == 18));
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}
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