/src/hostap/src/crypto/sha384-internal.c

Source (jump to first uncovered line)
/*
 * SHA-384 hash implementation and interface functions
 * Copyright (c) 2015, Pali Rohár <pali.rohar@gmail.com>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "includes.h"

#include "common.h"
#include "sha384_i.h"
#include "crypto.h"


/**
 * sha384_vector - SHA384 hash for data vector
 * @num_elem: Number of elements in the data vector
 * @addr: Pointers to the data areas
 * @len: Lengths of the data blocks
 * @mac: Buffer for the hash
 * Returns: 0 on success, -1 of failure
 */
int sha384_vector(size_t num_elem, const u8 *addr[], const size_t *len,
      u8 *mac)
{
  struct sha384_state ctx;
  size_t i;

  sha384_init(&ctx);
  for (i = 0; i < num_elem; i++)
    if (sha384_process(&ctx, addr[i], len[i]))
      return -1;
  if (sha384_done(&ctx, mac))
    return -1;
  return 0;
}


/* ===== start - public domain SHA384 implementation ===== */

/* This is based on SHA384 implementation in LibTomCrypt that was released into
 * public domain by Tom St Denis. */

#define CONST64(n) n ## ULL

/**
   Initialize the hash state
   @param md   The hash state you wish to initialize
   @return CRYPT_OK if successful
*/
void sha384_init(struct sha384_state *md)
{
  md->curlen = 0;
  md->length = 0;
  md->state[0] = CONST64(0xcbbb9d5dc1059ed8);
  md->state[1] = CONST64(0x629a292a367cd507);
  md->state[2] = CONST64(0x9159015a3070dd17);
  md->state[3] = CONST64(0x152fecd8f70e5939);
  md->state[4] = CONST64(0x67332667ffc00b31);
  md->state[5] = CONST64(0x8eb44a8768581511);
  md->state[6] = CONST64(0xdb0c2e0d64f98fa7);
  md->state[7] = CONST64(0x47b5481dbefa4fa4);
}

int sha384_process(struct sha384_state *md, const unsigned char *in,
       unsigned long inlen)
{
  return sha512_process(md, in, inlen);
}

/**
   Terminate the hash to get the digest
   @param md  The hash state
   @param out [out] The destination of the hash (48 bytes)
   @return CRYPT_OK if successful
*/
int sha384_done(struct sha384_state *md, unsigned char *out)
{
  unsigned char buf[64];

  if (md->curlen >= sizeof(md->buf))
    return -1;

  if (sha512_done(md, buf) != 0)
    return -1;

  os_memcpy(out, buf, 48);
  return 0;
}

/* ===== end - public domain SHA384 implementation ===== */

Coverage Report

Created: 2025-08-26 06:04

Line	Count	Source (jump to first uncovered line)
1		/*
2		* SHA-384 hash implementation and interface functions
3		* Copyright (c) 2015, Pali Rohár <pali.rohar@gmail.com>
4		*
5		* This software may be distributed under the terms of the BSD license.
6		* See README for more details.
7		*/
8
9		#include "includes.h"
10
11		#include "common.h"
12		#include "sha384_i.h"
13		#include "crypto.h"
14
15
16		/**
17		* sha384_vector - SHA384 hash for data vector
18		* @num_elem: Number of elements in the data vector
19		* @addr: Pointers to the data areas
20		* @len: Lengths of the data blocks
21		* @mac: Buffer for the hash
22		* Returns: 0 on success, -1 of failure
23		*/
24		int sha384_vector(size_t num_elem, const u8 addr[], const size_t len,
25		u8 *mac)
26	0	{
27	0	struct sha384_state ctx;
28	0	size_t i;
29
30	0	sha384_init(&ctx);
31	0	for (i = 0; i < num_elem; i++)
32	0	if (sha384_process(&ctx, addr[i], len[i]))
33	0	return -1;
34	0	if (sha384_done(&ctx, mac))
35	0	return -1;
36	0	return 0;
37	0	}
38
39
40		/* ===== start - public domain SHA384 implementation ===== */
41
42		/* This is based on SHA384 implementation in LibTomCrypt that was released into
43		* public domain by Tom St Denis. */
44
45	992	#define CONST64(n) n ## ULL
46
47		/**
48		Initialize the hash state
49		@param md The hash state you wish to initialize
50		@return CRYPT_OK if successful
51		*/
52		void sha384_init(struct sha384_state *md)
53	124	{
54	124	md->curlen = 0;
55	124	md->length = 0;
56	124	md->state[0] = CONST64(0xcbbb9d5dc1059ed8);
57	124	md->state[1] = CONST64(0x629a292a367cd507);
58	124	md->state[2] = CONST64(0x9159015a3070dd17);
59	124	md->state[3] = CONST64(0x152fecd8f70e5939);
60	124	md->state[4] = CONST64(0x67332667ffc00b31);
61	124	md->state[5] = CONST64(0x8eb44a8768581511);
62	124	md->state[6] = CONST64(0xdb0c2e0d64f98fa7);
63	124	md->state[7] = CONST64(0x47b5481dbefa4fa4);
64	124	}
65
66		int sha384_process(struct sha384_state md, const unsigned char in,
67		unsigned long inlen)
68	372	{
69	372	return sha512_process(md, in, inlen);
70	372	}
71
72		/**
73		Terminate the hash to get the digest
74		@param md The hash state
75		@param out [out] The destination of the hash (48 bytes)
76		@return CRYPT_OK if successful
77		*/
78		int sha384_done(struct sha384_state md, unsigned char out)
79	124	{
80	124	unsigned char buf[64];
81
82	124	if (md->curlen >= sizeof(md->buf))
83	0	return -1;
84
85	124	if (sha512_done(md, buf) != 0)
86	0	return -1;
87
88	124	os_memcpy(out, buf, 48);
89	124	return 0;
90	124	}
91
92		/* ===== end - public domain SHA384 implementation ===== */