72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
#ifndef _RAINBOW_KEYPAIR_COMP_H_
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#define _RAINBOW_KEYPAIR_COMP_H_
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/// @file rainbow_keypair_computation.h
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/// @brief Functions for calculating pk/sk while generating keys.
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///
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/// Defining an internal structure of public key.
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/// Functions for calculating pk/sk for key generation.
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///
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#include "rainbow_keypair.h"
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/// @brief The (internal use) public key for rainbow
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///
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/// The (internal use) public key for rainbow. The public
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/// polynomials are divided into l1_Q1, l1_Q2, ... l1_Q9,
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/// l2_Q1, .... , l2_Q9.
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///
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typedef struct rainbow_extend_publickey {
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unsigned char l1_Q1[_O1_BYTE * N_TRIANGLE_TERMS(_V1)];
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unsigned char l1_Q2[_O1_BYTE * _V1 * _O1];
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unsigned char l1_Q3[_O1_BYTE * _V1 * _O2];
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unsigned char l1_Q5[_O1_BYTE * N_TRIANGLE_TERMS(_O1)];
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unsigned char l1_Q6[_O1_BYTE * _O1 * _O2];
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unsigned char l1_Q9[_O1_BYTE * N_TRIANGLE_TERMS(_O2)];
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unsigned char l2_Q1[_O2_BYTE * N_TRIANGLE_TERMS(_V1)];
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unsigned char l2_Q2[_O2_BYTE * _V1 * _O1];
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unsigned char l2_Q3[_O2_BYTE * _V1 * _O2];
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unsigned char l2_Q5[_O2_BYTE * N_TRIANGLE_TERMS(_O1)];
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unsigned char l2_Q6[_O2_BYTE * _O1 * _O2];
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unsigned char l2_Q9[_O2_BYTE * N_TRIANGLE_TERMS(_O2)];
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} ext_cpk_t;
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///
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/// @brief converting formats of public keys : from ext_cpk_t version to pk_t
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///
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/// @param[out] pk - the classic public key.
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/// @param[in] cpk - the internel public key.
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///
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void PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_extcpk_to_pk(pk_t *pk, const ext_cpk_t *cpk);
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/////////////////////////////////////////////////
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///
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/// @brief Computing public key from secret key
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///
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/// @param[out] Qs - the public key
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/// @param[in] Fs - parts of the secret key: l1_F1, l1_F2, l2_F1, l2_F2, l2_F3, l2_F5, l2_F6
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/// @param[in] Ts - parts of the secret key: T1, T4, T3
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///
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void PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_calculate_Q_from_F(ext_cpk_t *Qs, const sk_t *Fs, const sk_t *Ts);
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///
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/// @brief Computing parts of the sk from parts of pk and sk
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///
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/// @param[out] Fs - parts of the sk: l1_F1, l1_F2, l2_F1, l2_F2, l2_F3, l2_F5, l2_F6
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/// @param[in] Qs - parts of the pk: l1_Q1, l1_Q2, l2_Q1, l2_Q2, l2_Q3, l2_Q5, l2_Q6
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/// @param[in] Ts - parts of the sk: T1, T4, T3
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///
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void PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_calculate_F_from_Q(sk_t *Fs, const sk_t *Qs, sk_t *Ts);
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///
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/// @brief Computing parts of the pk from the secret key
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///
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/// @param[out] Qs - parts of the pk: l1_Q3, l1_Q5, l2_Q6, l1_Q9, l2_Q9
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/// @param[in] Fs - parts of the sk: l1_F1, l1_F2, l2_F1, l2_F2, l2_F3, l2_F5, l2_F6
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/// @param[in] Ts - parts of the sk: T1, T4, T3
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///
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void PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_calculate_Q_from_F_cyclic(cpk_t *Qs, const sk_t *Fs, const sk_t *Ts);
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#endif // _RAINBOW_KEYPAIR_COMP_H_
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