1*e7be843bSPierre Pronchery/* 2*e7be843bSPierre Pronchery * Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved. 3*e7be843bSPierre Pronchery * 4*e7be843bSPierre Pronchery * Licensed under the Apache License 2.0 (the "License"). You may not use 5*e7be843bSPierre Pronchery * this file except in compliance with the License. You can obtain a copy 6*e7be843bSPierre Pronchery * in the file LICENSE in the source distribution or at 7*e7be843bSPierre Pronchery * https://www.openssl.org/source/license.html 8*e7be843bSPierre Pronchery */ 9*e7be843bSPierre Pronchery 10*e7be843bSPierre Pronchery/*- 11*e7be843bSPierre Pronchery * RISC-V 32 ZKND ZKNE support for AES modes ecb, cbc, ofb, cfb, ctr. 12*e7be843bSPierre Pronchery * This file is included by cipher_aes_hw.c 13*e7be843bSPierre Pronchery */ 14*e7be843bSPierre Pronchery 15*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zknd_zkne_cbc ossl_cipher_hw_generic_cbc 16*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zknd_zkne_ecb ossl_cipher_hw_generic_ecb 17*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zknd_zkne_ofb128 ossl_cipher_hw_generic_ofb128 18*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zknd_zkne_cfb128 ossl_cipher_hw_generic_cfb128 19*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zknd_zkne_cfb8 ossl_cipher_hw_generic_cfb8 20*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zknd_zkne_cfb1 ossl_cipher_hw_generic_cfb1 21*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zknd_zkne_ctr ossl_cipher_hw_generic_ctr 22*e7be843bSPierre Pronchery 23*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zbkb_zknd_zkne_cbc ossl_cipher_hw_generic_cbc 24*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zbkb_zknd_zkne_ecb ossl_cipher_hw_generic_ecb 25*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zbkb_zknd_zkne_ofb128 ossl_cipher_hw_generic_ofb128 26*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zbkb_zknd_zkne_cfb128 ossl_cipher_hw_generic_cfb128 27*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zbkb_zknd_zkne_cfb8 ossl_cipher_hw_generic_cfb8 28*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zbkb_zknd_zkne_cfb1 ossl_cipher_hw_generic_cfb1 29*e7be843bSPierre Pronchery#define cipher_hw_rv32i_zbkb_zknd_zkne_ctr ossl_cipher_hw_generic_ctr 30*e7be843bSPierre Pronchery 31*e7be843bSPierre Proncherystatic int cipher_hw_rv32i_zknd_zkne_initkey(PROV_CIPHER_CTX *dat, 32*e7be843bSPierre Pronchery const unsigned char *key, size_t keylen) 33*e7be843bSPierre Pronchery{ 34*e7be843bSPierre Pronchery int ret; 35*e7be843bSPierre Pronchery PROV_AES_CTX *adat = (PROV_AES_CTX *)dat; 36*e7be843bSPierre Pronchery AES_KEY *ks = &adat->ks.ks; 37*e7be843bSPierre Pronchery 38*e7be843bSPierre Pronchery dat->ks = ks; 39*e7be843bSPierre Pronchery 40*e7be843bSPierre Pronchery if ((dat->mode == EVP_CIPH_ECB_MODE || dat->mode == EVP_CIPH_CBC_MODE) 41*e7be843bSPierre Pronchery && !dat->enc) { 42*e7be843bSPierre Pronchery ret = rv32i_zknd_zkne_set_decrypt_key(key, keylen * 8, ks); 43*e7be843bSPierre Pronchery dat->block = (block128_f) rv32i_zknd_decrypt; 44*e7be843bSPierre Pronchery dat->stream.cbc = NULL; 45*e7be843bSPierre Pronchery } else { 46*e7be843bSPierre Pronchery ret = rv32i_zkne_set_encrypt_key(key, keylen * 8, ks); 47*e7be843bSPierre Pronchery dat->block = (block128_f) rv32i_zkne_encrypt; 48*e7be843bSPierre Pronchery dat->stream.cbc = NULL; 49*e7be843bSPierre Pronchery } 50*e7be843bSPierre Pronchery 51*e7be843bSPierre Pronchery if (ret < 0) { 52*e7be843bSPierre Pronchery ERR_raise(ERR_LIB_PROV, PROV_R_KEY_SETUP_FAILED); 53*e7be843bSPierre Pronchery return 0; 54*e7be843bSPierre Pronchery } 55*e7be843bSPierre Pronchery 56*e7be843bSPierre Pronchery return 1; 57*e7be843bSPierre Pronchery} 58*e7be843bSPierre Pronchery 59*e7be843bSPierre Proncherystatic int cipher_hw_rv32i_zbkb_zknd_zkne_initkey(PROV_CIPHER_CTX *dat, 60*e7be843bSPierre Pronchery const unsigned char *key, size_t keylen) 61*e7be843bSPierre Pronchery{ 62*e7be843bSPierre Pronchery int ret; 63*e7be843bSPierre Pronchery PROV_AES_CTX *adat = (PROV_AES_CTX *)dat; 64*e7be843bSPierre Pronchery AES_KEY *ks = &adat->ks.ks; 65*e7be843bSPierre Pronchery 66*e7be843bSPierre Pronchery dat->ks = ks; 67*e7be843bSPierre Pronchery 68*e7be843bSPierre Pronchery if ((dat->mode == EVP_CIPH_ECB_MODE || dat->mode == EVP_CIPH_CBC_MODE) 69*e7be843bSPierre Pronchery && !dat->enc) { 70*e7be843bSPierre Pronchery ret = rv32i_zbkb_zknd_zkne_set_decrypt_key(key, keylen * 8, ks); 71*e7be843bSPierre Pronchery dat->block = (block128_f) rv32i_zknd_decrypt; 72*e7be843bSPierre Pronchery dat->stream.cbc = NULL; 73*e7be843bSPierre Pronchery } else { 74*e7be843bSPierre Pronchery ret = rv32i_zbkb_zkne_set_encrypt_key(key, keylen * 8, ks); 75*e7be843bSPierre Pronchery dat->block = (block128_f) rv32i_zkne_encrypt; 76*e7be843bSPierre Pronchery dat->stream.cbc = NULL; 77*e7be843bSPierre Pronchery } 78*e7be843bSPierre Pronchery 79*e7be843bSPierre Pronchery if (ret < 0) { 80*e7be843bSPierre Pronchery ERR_raise(ERR_LIB_PROV, PROV_R_KEY_SETUP_FAILED); 81*e7be843bSPierre Pronchery return 0; 82*e7be843bSPierre Pronchery } 83*e7be843bSPierre Pronchery 84*e7be843bSPierre Pronchery return 1; 85*e7be843bSPierre Pronchery} 86*e7be843bSPierre Pronchery 87*e7be843bSPierre Pronchery#define PROV_CIPHER_HW_declare(mode) \ 88*e7be843bSPierre Proncherystatic const PROV_CIPHER_HW rv32i_zknd_zkne_##mode = { \ 89*e7be843bSPierre Pronchery cipher_hw_rv32i_zknd_zkne_initkey, \ 90*e7be843bSPierre Pronchery cipher_hw_rv32i_zknd_zkne_##mode, \ 91*e7be843bSPierre Pronchery cipher_hw_aes_copyctx \ 92*e7be843bSPierre Pronchery}; \ 93*e7be843bSPierre Proncherystatic const PROV_CIPHER_HW rv32i_zbkb_zknd_zkne_##mode = { \ 94*e7be843bSPierre Pronchery cipher_hw_rv32i_zbkb_zknd_zkne_initkey, \ 95*e7be843bSPierre Pronchery cipher_hw_rv32i_zbkb_zknd_zkne_##mode, \ 96*e7be843bSPierre Pronchery cipher_hw_aes_copyctx \ 97*e7be843bSPierre Pronchery}; 98*e7be843bSPierre Pronchery#define PROV_CIPHER_HW_select(mode) \ 99*e7be843bSPierre Proncheryif (RISCV_HAS_ZBKB_AND_ZKND_AND_ZKNE()) \ 100*e7be843bSPierre Pronchery return &rv32i_zbkb_zknd_zkne_##mode; \ 101*e7be843bSPierre Proncheryif (RISCV_HAS_ZKND_AND_ZKNE()) \ 102*e7be843bSPierre Pronchery return &rv32i_zknd_zkne_##mode; 103