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- /*
- * Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the Apache License 2.0 (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
- /*-
- * RISC-V 64 ZVKSED support for SM4 GCM.
- * This file is included by cipher_sm4_gcm_hw.c
- */
- static int rv64i_zvksed_sm4_gcm_initkey(PROV_GCM_CTX *ctx,
- const unsigned char *key,
- size_t keylen)
- {
- PROV_SM4_GCM_CTX *actx = (PROV_SM4_GCM_CTX *)ctx;
- SM4_KEY *ks = &actx->ks.ks;
- SM4_GCM_HW_SET_KEY_CTR_FN(ks, rv64i_zvksed_sm4_set_encrypt_key,
- rv64i_zvksed_sm4_encrypt, NULL);
- return 1;
- }
- static const PROV_GCM_HW rv64i_zvksed_sm4_gcm = {
- rv64i_zvksed_sm4_gcm_initkey,
- ossl_gcm_setiv,
- ossl_gcm_aad_update,
- hw_gcm_cipher_update,
- ossl_gcm_cipher_final,
- ossl_gcm_one_shot
- };
- const PROV_GCM_HW *ossl_prov_sm4_hw_gcm(size_t keybits)
- {
- if (RISCV_HAS_ZVKB_AND_ZVKSED() && riscv_vlen() >= 128)
- return &rv64i_zvksed_sm4_gcm;
- else
- return &sm4_gcm;
- }
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