lcx_sha512.h

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/*******************************************************************************
 *   Ledger Nano S - Secure firmware
 *   (c) 2022 Ledger
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 ********************************************************************************/
 
#ifndef LCX_SHA512_H
#define LCX_SHA512_H
 
#if defined(HAVE_SHA384) || defined(HAVE_SHA512)
 
#define CX_SHA384_SIZE 48
#define CX_SHA512_SIZE 64
 
struct cx_sha512_s {
    struct cx_hash_header_s header;      
    size_t                  blen;        
    uint8_t                 block[128];  
    uint8_t                 acc[8 * 8];  
};
typedef struct cx_sha512_s cx_sha512_t;
 
// No need to add WARN_UNUSED_RESULT to cx_sha384_init_no_throw(), it always returns CX_OK
cx_err_t cx_sha384_init_no_throw(cx_sha512_t *hash);
 
static inline int cx_sha384_init(cx_sha512_t *hash)
{
    cx_sha384_init_no_throw(hash);
    return CX_SHA384;
}
 
cx_err_t cx_sha384_hash_iovec(const cx_iovec_t *iovec,
                              size_t            iovec_len,
                              uint8_t           digest[static CX_SHA384_SIZE]);
 
static inline cx_err_t cx_sha384_hash(const uint8_t *in,
                                      size_t         in_len,
                                      uint8_t        digest[static CX_SHA384_SIZE])
{
    const cx_iovec_t iovec = {.iov_base = in, .iov_len = in_len};
 
    return cx_sha384_hash_iovec(&iovec, 1, digest);
}
 
// No need to add WARN_UNUSED_RESULT to cx_sha512_init_no_throw(), it always returns CX_OK
cx_err_t cx_sha512_init_no_throw(cx_sha512_t *hash);
 
static inline int cx_sha512_init(cx_sha512_t *hash)
{
    cx_sha512_init_no_throw(hash);
    return CX_SHA512;
}
 
WARN_UNUSED_RESULT cx_err_t cx_sha512_update(cx_sha512_t *ctx, const uint8_t *data, size_t len);
 
cx_err_t cx_sha512_final(cx_sha512_t *ctx, uint8_t *digest);
 
cx_err_t cx_sha512_hash_iovec(const cx_iovec_t *iovec,
                              size_t            iovec_len,
                              uint8_t           digest[static CX_SHA512_SIZE]);
 
static inline cx_err_t cx_sha512_hash(const uint8_t *in,
                                      size_t         in_len,
                                      uint8_t        digest[static CX_SHA512_SIZE])
{
    const cx_iovec_t iovec = {.iov_base = in, .iov_len = in_len};
 
    return cx_sha512_hash_iovec(&iovec, 1, digest);
}
 
size_t cx_hash_sha512(const uint8_t *in, size_t in_len, uint8_t *out, size_t out_len);
 
#endif  // defined(HAVE_SHA384) || defined(HAVE_SHA512)
 
#endif  // LCX_SHA512_H