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95 lines
3.3 KiB
C
95 lines
3.3 KiB
C
#ifndef _RAINBOW_KEYPAIR_H_
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#define _RAINBOW_KEYPAIR_H_
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/// @file rainbow_keypair.h
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/// @brief Formats of key pairs and functions for generating key pairs.
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/// Formats of key pairs and functions for generating key pairs.
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///
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#include "rainbow_config.h"
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#define N_TRIANGLE_TERMS(n_var) ((n_var) * ((n_var) + 1) / 2)
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/// @brief public key for classic rainbow
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///
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/// public key for classic rainbow
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///
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typedef struct rainbow_publickey {
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unsigned char pk[(_PUB_M_BYTE)*N_TRIANGLE_TERMS(_PUB_N)];
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} pk_t;
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/// @brief secret key for classic rainbow
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///
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/// secret key for classic rainbow
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///
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typedef struct rainbow_secretkey {
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///
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/// seed for generating secret key.
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/// Generating S, T, and F for classic rainbow.
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/// Generating S and T only for cyclic rainbow.
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unsigned char sk_seed[LEN_SKSEED];
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unsigned char s1[_O1_BYTE * _O2]; ///< part of S map
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unsigned char t1[_V1_BYTE * _O1]; ///< part of T map
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unsigned char t4[_V1_BYTE * _O2]; ///< part of T map
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unsigned char t3[_O1_BYTE * _O2]; ///< part of T map
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unsigned char l1_F1[_O1_BYTE * N_TRIANGLE_TERMS(_V1)]; ///< part of C-map, F1, Layer1
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unsigned char l1_F2[_O1_BYTE * _V1 * _O1]; ///< part of C-map, F2, Layer1
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unsigned char l2_F1[_O2_BYTE * N_TRIANGLE_TERMS(_V1)]; ///< part of C-map, F1, Layer2
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unsigned char l2_F2[_O2_BYTE * _V1 * _O1]; ///< part of C-map, F2, Layer2
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unsigned char l2_F3[_O2_BYTE * _V1 * _O2]; ///< part of C-map, F3, Layer2
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unsigned char l2_F5[_O2_BYTE * N_TRIANGLE_TERMS(_O1)]; ///< part of C-map, F5, Layer2
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unsigned char l2_F6[_O2_BYTE * _O1 * _O2]; ///< part of C-map, F6, Layer2
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} sk_t;
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/// @brief public key for cyclic rainbow
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///
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/// public key for cyclic rainbow
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///
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typedef struct rainbow_publickey_cyclic {
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unsigned char pk_seed[LEN_PKSEED]; ///< seed for generating l1_Q1,l1_Q2,l2_Q1,l2_Q2,l2_Q3,l2_Q5,l2_Q6
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unsigned char l1_Q3[_O1_BYTE * _V1 * _O2]; ///< Q3, layer1
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unsigned char l1_Q5[_O1_BYTE * N_TRIANGLE_TERMS(_O1)]; ///< Q5, layer1
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unsigned char l1_Q6[_O1_BYTE * _O1 * _O2]; ///< Q6, layer1
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unsigned char l1_Q9[_O1_BYTE * N_TRIANGLE_TERMS(_O2)]; ///< Q9, layer1
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unsigned char l2_Q9[_O2_BYTE * N_TRIANGLE_TERMS(_O2)]; ///< Q9, layer2
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} cpk_t;
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/// @brief compressed secret key for cyclic rainbow
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///
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/// compressed secret key for cyclic rainbow
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///
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typedef struct rainbow_secretkey_cyclic {
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unsigned char pk_seed[LEN_PKSEED]; ///< seed for generating a part of public key.
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unsigned char sk_seed[LEN_SKSEED]; ///< seed for generating a part of secret key.
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} csk_t;
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///
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/// @brief Generate key pairs for cyclic rainbow.
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///
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/// @param[out] pk - the public key.
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/// @param[out] sk - the secret key.
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/// @param[in] pk_seed - seed for generating parts of public key.
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/// @param[in] sk_seed - seed for generating secret key.
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///
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void PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_generate_keypair_cyclic(cpk_t *pk, sk_t *sk, const unsigned char *pk_seed, const unsigned char *sk_seed);
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////////////////////////////////////
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///
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/// @brief converting formats of public keys : from cyclic version to classic key
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///
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/// @param[out] pk - the classic public key.
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/// @param[in] cpk - the cyclic public key.
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///
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void PQCLEAN_RAINBOWICIRCUMZENITHAL_CLEAN_cpk_to_pk(pk_t *pk, const cpk_t *cpk);
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#endif // _RAINBOW_KEYPAIR_H_
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