94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/*
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* ccb_vaultic.h
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*
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* Copyright (C) 2023 wolfSSL Inc.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef CCB_VAULTIC_H
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#define CCB_VAULTIC_H
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/* VaultIC DevID MSBs are ASCII "VI" */
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#define CCBVAULTIC_DEVID (0x56490000ul)
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#define CCBVAULTIC420_DEVID (CCBVAULTIC_DEVID + 0x0420)
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#ifdef HAVE_CCBVAULTIC
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/*
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* Implementation of wolfCrypt cryptocb callbacks
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*
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* The wolfSSL port of the Wisekey VaultIC provides a wrapper library to allow
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* the VaultIC to be used as an external crypto provider. This library depends
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* on the Wisekey-provided VaultIC interface libraries that have been statically
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* compiled in the proper hardware configuration.
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*/
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typedef struct {
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int initialized;
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int vlt_rc;
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/* Buffer to store message during SHA with will_copy flag set */
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int hash_type; /* enum wc_HashType */
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unsigned char *m;
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size_t m_len;
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/* Buffer to cache aes key between invocations */
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unsigned char *aescbc_key;
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size_t aescbc_keylen;
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} ccbVaultIc_Context;
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/* ccbVaultIc_Context static initializer */
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#define CCBVAULTIC_CONTEXT_INITIALIZER \
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{ \
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.initialized = 0 \
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}
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/* Initialize the Wisekey VaultIC library and clear the context.
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* Returns: 0 on success
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* BAD_FUNC_ARGS with NULL context
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* WC_INIT_E on error initializing the VaultIC.
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* c->vlt_rc will have error code
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*/
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int ccbVaultIc_Init(ccbVaultIc_Context *c);
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/* Close the Wisekey VaultIC library. */
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void ccbVaultIc_Cleanup(ccbVaultIc_Context *c);
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#ifdef WOLF_CRYPTO_CB
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#include "wolfssl/wolfcrypt/cryptocb.h" /* For wc_CryptInfo */
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/* Register this callback and associate with a context using:
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* ccbVaultIc_Context ctx=CCBVAULTIC_CONTEXT_INITIALIZER;
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* ccbVaultIc_Init(&ctx);
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* wc_CryptoCb_RegisterDevice(
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* CCBVAULTIC420_DEVID,
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* ccbVaultIc_CryptoCb,
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* &ctx);
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* wc_Aes aes={0};
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* wc_AesInit(&aes, NULL, CCBVAULTIC420_DEVID);
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* Returns: 0 on success
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* CRYPTOCB_UNAVAILABLE if not initialized or not implemented
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* MEMORY_E if memory allocation fails
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*/
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int ccbVaultIc_CryptoCb(int devId,
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wc_CryptoInfo* info,
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void* ctx);
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#endif /* WOLF_CRYPTO_CB */
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#endif /* HAVE_CCBVAULTIC */
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#endif /* CCB_VAULTIC_H_ */
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