Python code coverage for Modules/_sha3/keccak/KeccakNISTInterface.c

#	count	content
1	n/a	/*
2	n/a	The Keccak sponge function, designed by Guido Bertoni, Joan Daemen,
3	n/a	MichaÃ«l Peeters and Gilles Van Assche. For more information, feedback or
4	n/a	questions, please refer to our website: http://keccak.noekeon.org/
5	n/a
6	n/a	Implementation by the designers,
7	n/a	hereby denoted as "the implementer".
8	n/a
9	n/a	To the extent possible under law, the implementer has waived all copyright
10	n/a	and related or neighboring rights to the source code in this file.
11	n/a	http://creativecommons.org/publicdomain/zero/1.0/
12	n/a	*/
13	n/a
14	n/a	#include <string.h>
15	n/a	#include "KeccakNISTInterface.h"
16	n/a	#include "KeccakF-1600-interface.h"
17	n/a
18	n/a	static HashReturn Init(hashState *state, int hashbitlen)
19	n/a	{
20	n/a	switch(hashbitlen) {
21	n/a	case 0: /* Default parameters, arbitrary length output */
22	n/a	InitSponge((spongeState*)state, 1024, 576);
23	n/a	break;
24	n/a	case 224:
25	n/a	InitSponge((spongeState*)state, 1152, 448);
26	n/a	break;
27	n/a	case 256:
28	n/a	InitSponge((spongeState*)state, 1088, 512);
29	n/a	break;
30	n/a	case 384:
31	n/a	InitSponge((spongeState*)state, 832, 768);
32	n/a	break;
33	n/a	case 512:
34	n/a	InitSponge((spongeState*)state, 576, 1024);
35	n/a	break;
36	n/a	default:
37	n/a	return BAD_HASHLEN;
38	n/a	}
39	n/a	state->fixedOutputLength = hashbitlen;
40	n/a	return SUCCESS;
41	n/a	}
42	n/a
43	n/a	static HashReturn Update(hashState state, const BitSequence data, DataLength databitlen)
44	n/a	{
45	n/a	if ((databitlen % 8) == 0)
46	n/a	return Absorb((spongeState*)state, data, databitlen);
47	n/a	else {
48	n/a	HashReturn ret = Absorb((spongeState*)state, data, databitlen - (databitlen % 8));
49	n/a	if (ret == SUCCESS) {
50	n/a	unsigned char lastByte;
51	n/a	/* Align the last partial byte to the least significant bits */
52	n/a	lastByte = data[databitlen/8] >> (8 - (databitlen % 8));
53	n/a	return Absorb((spongeState*)state, &lastByte, databitlen % 8);
54	n/a	}
55	n/a	else
56	n/a	return ret;
57	n/a	}
58	n/a	}
59	n/a
60	n/a	static HashReturn Final(hashState state, BitSequence hashval)
61	n/a	{
62	n/a	return Squeeze(state, hashval, state->fixedOutputLength);
63	n/a	}
64	n/a
65	n/a	/*
66	n/a	static HashReturn Hash(int hashbitlen, const BitSequence data, DataLength databitlen, BitSequence hashval)
67	n/a	{
68	n/a	hashState state;
69	n/a	HashReturn result;
70	n/a
71	n/a	if ((hashbitlen != 224) && (hashbitlen != 256) && (hashbitlen != 384) && (hashbitlen != 512))
72	n/a	return BAD_HASHLEN; * Only the four fixed output lengths available through this API *
73	n/a	result = Init(&state, hashbitlen);
74	n/a	if (result != SUCCESS)
75	n/a	return result;
76	n/a	result = Update(&state, data, databitlen);
77	n/a	if (result != SUCCESS)
78	n/a	return result;
79	n/a	result = Final(&state, hashval);
80	n/a	return result;
81	n/a	}
82	n/a	*/
83	n/a