/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2020 Rockchip Electronics Co., Ltd. */
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#ifndef __RK_CRYPTO_BIGNUM_H__
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#define __RK_CRYPTO_BIGNUM_H__
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enum bignum_endian {
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RK_BG_BIG_ENDIAN,
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RK_BG_LITTILE_ENDIAN
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};
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/**
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* struct rk_bignum - crypto bignum struct.
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*/
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struct rk_bignum {
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u32 n_words;
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u32 *data;
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};
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struct rk_bignum *rk_bn_alloc(u32 max_size);
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void rk_bn_free(struct rk_bignum *bn);
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int rk_bn_set_data(struct rk_bignum *bn, const u8 *data, u32 size, enum bignum_endian endian);
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int rk_bn_get_data(const struct rk_bignum *bn, u8 *data, u32 size, enum bignum_endian endian);
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u32 rk_bn_get_size(const struct rk_bignum *bn);
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int rk_bn_highest_bit(const struct rk_bignum *src);
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#endif
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