/*
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* Copyright (c) 2022 Rockchip Electronics Co. Ltd.
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*/
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#ifndef __RKCRYPTO_RSA_HELPER_H__
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#define __RKCRYPTO_RSA_HELPER_H__
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#include <stdint.h>
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#include "rkcrypto_common.h"
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/*
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* The rk_rsa_pub_key will be encoded in BER format as follows
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*
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* SEQUENCE {
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* n INTEGER ({ rsa_get_n }),
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* e INTEGER ({ rsa_get_e })
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* }
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*/
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RK_RES rk_rsa_pubkey_encode(rk_rsa_pub_key_pack *pub,
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uint8_t *asn1_key, uint16_t *asn1_key_len, uint16_t *key_bits);
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/*
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* The rk_rsa_priv_key will be encoded in BER format as follows
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*
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* SEQUENCE {
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* version INTEGER,
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* n INTEGER ({ rsa_get_n }),
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* e INTEGER ({ rsa_get_e }),
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* d INTEGER ({ rsa_get_d }),
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* prime1 INTEGER,
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* prime2 INTEGER,
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* exponent1 INTEGER,
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* exponent2 INTEGER,
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* coefficient INTEGER
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* }
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*/
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RK_RES rk_rsa_privkey_encode(rk_rsa_priv_key_pack *priv,
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uint8_t *asn1_key, uint16_t *asn1_key_len, uint16_t *key_bits);
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RK_RES rk_rsa_crypt_do_padding(enum RK_RSA_CRYPT_PADDING padding,
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uint16_t key_len, bool is_priv_key,
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const uint8_t *data, uint32_t data_len,
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uint8_t *pad, uint32_t *pad_len);
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RK_RES rk_rsa_crypt_undo_padding(enum RK_RSA_CRYPT_PADDING padding,
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uint16_t key_len, bool is_priv_key,
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const uint8_t *pad, uint32_t pad_len,
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uint8_t *data, uint32_t *data_len);
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RK_RES rk_rsa_sign_do_padding(enum RK_RSA_SIGN_PADDING padding, uint16_t key_len, uint16_t n_bits,
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const uint8_t *data, uint32_t data_len, const uint8_t *hash,
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uint8_t *pad, uint32_t *pad_len);
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RK_RES rk_rsa_sign_undo_padding(enum RK_RSA_SIGN_PADDING padding, uint16_t key_len, uint16_t n_bits,
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const uint8_t *data, uint32_t data_len,
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const uint8_t *hash, const uint8_t *dec);
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#endif
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