psa_crypto_operation_encoder.h

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/*
 * Copyright (C) 2022 HAW Hamburg
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#ifdef __cplusplus
extern "C" {
#endif
 
#include "psa/crypto.h"
#include "psa_crypto_slot_management.h"

#define PSA_INVALID_OPERATION     (0xFF)

typedef enum {
    PSA_CBC_NO_PAD_AES_128,
    PSA_CBC_NO_PAD_AES_192,
    PSA_CBC_NO_PAD_AES_256,
    PSA_CBC_PKCS7_AES_256,
    PSA_STREAM_CIPHER_CHACHA20
} psa_cipher_op_t;

typedef enum {
    PSA_CCM_AES_128,
    PSA_CCM_AES_192,
    PSA_CCM_AES_256
} psa_aead_op_t;

typedef enum {
    PSA_ECC_P160_K1,
    PSA_ECC_P160_R1,
    PSA_ECC_P160_R2,
    PSA_ECC_P192_K1,
    PSA_ECC_P192_R1,
    PSA_ECC_P224_K1,
    PSA_ECC_P224_R1,
    PSA_ECC_P256_K1,
    PSA_ECC_P256_R1,
    PSA_ECC_P384_R1,
    PSA_ECC_P521_R1,
    PSA_ECC_FRP,
    PSA_ECC_ED25519,
} psa_asym_key_t;

#define PSA_ENCODE_ECC_KEY_TYPE_SECPR1(bits) \
    ((bits == 256) || (bits == 520) ? PSA_ECC_P256_R1 : \
     (bits == 192) || (bits == 392) ? PSA_ECC_P192_R1 : \
     PSA_INVALID_OPERATION)

#define PSA_ENCODE_ECC_KEY_TYPE_EDWARDS(bits) \
    ((bits == 255) || (bits == 256) ? PSA_ECC_ED25519 : \
     PSA_INVALID_OPERATION)

#define PSA_ENCODE_ECC_KEY_TYPE(bits, curve) \
    ((curve == PSA_ECC_FAMILY_SECP_R1) ? PSA_ENCODE_ECC_KEY_TYPE_SECPR1(bits) : \
     (curve == PSA_ECC_FAMILY_TWISTED_EDWARDS) ? PSA_ENCODE_ECC_KEY_TYPE_EDWARDS(bits) : \
     PSA_INVALID_OPERATION)

#define GET_CBC_NO_PADDING_OPERATION(type, bits) \
    ((type == PSA_KEY_TYPE_AES) ? \
     ((bits == 128) ? PSA_CBC_NO_PAD_AES_128 : \
     (bits == 192) ? PSA_CBC_NO_PAD_AES_192 : \
     (bits == 256) ? PSA_CBC_NO_PAD_AES_256 : \
     PSA_INVALID_OPERATION) : \
     PSA_INVALID_OPERATION)

#define GET_AES_CCM_OPERATION(type, bits) \
    ((type == PSA_KEY_TYPE_AES) ? \
     ((bits == 128) ? PSA_CCM_AES_128 : \
     (bits == 192) ? PSA_CCM_AES_192 : \
     (bits == 256) ? PSA_CCM_AES_256 : \
     PSA_INVALID_OPERATION) : \
     PSA_INVALID_OPERATION)

#define GET_CBC_PKCS7_OPERATION(type, bits) \
    (((alg == PSA_ALG_CBC_PKCS7) && (type == PSA_KEY_TYPE_AES)) ? PSA_CBC_PKCS7_AES_256 : \
     PSA_INVALID_OPERATION)

#define GET_CFB_OPERATION(type, bits) \
    (PSA_INVALID_OPERATION)

#define GET_CTR_OPERATION(type, bits) \
    (PSA_INVALID_OPERATION)

#define GET_ECB_NO_PADDING_OPERATION(type, bits) \
    (PSA_INVALID_OPERATION)

#define GET_OFB_OPERATION(type, bits) \
    (PSA_INVALID_OPERATION)

#define GET_STREAM_CIPHER_OPERATION(type, bits) \
    (((type == PSA_KEY_TYPE_CHACHA20) && (bits == 256)) ? PSA_STREAM_CIPHER_CHACHA20 : \
     PSA_INVALID_OPERATION)

#define GET_XTS_OPERATION(type, bits) \
    (PSA_INVALID_OPERATION)

#define PSA_ENCODE_CIPHER_OPERATION(alg, type, bits) \
    ((alg == PSA_ALG_CBC_NO_PADDING) ? GET_CBC_NO_PADDING_OPERATION(type, bits) : \
     (alg == PSA_ALG_CBC_PKCS7) ? GET_CBC_PKCS7_OPERATION(type, bits) : \
     (alg == PSA_ALG_CFB) ? GET_CFB_OPERATION(type, bits) : \
     (alg == PSA_ALG_CTR) ? GET_CTR_OPERATION(type, bits) : \
     (alg == PSA_ALG_ECB_NO_PADDING) ? GET_ECB_NO_PADDING_OPERATION(type, bits) : \
     (alg == PSA_ALG_OFB) ? GET_OFB_OPERATION(type, bits) : \
     (alg == PSA_ALG_STREAM_CIPHER) ? GET_STREAM_CIPHER_OPERATION(type, bits) : \
     (alg == PSA_ALG_XTS) ? GET_XTS_OPERATION(type, bits) : \
     PSA_INVALID_OPERATION)

#define PSA_ENCODE_AEAD_OPERATION(alg, type, bits) \
    ((PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(alg) == PSA_ALG_CCM) ? \
        GET_AES_CCM_OPERATION(type, bits) : PSA_INVALID_OPERATION)
 
#ifdef __cplusplus
}
#endif