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wp_dgst.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/whrlpool/wp_dgst.c
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1-
2int WHIRLPOOL_Init(WHIRLPOOL_CTX *c)-
3 {-
4 memset (c,0,sizeof(*c));-
5 return
never executed: return(1);
(1);
never executed: return(1);
0
6 }-
7-
8int WHIRLPOOL_Update (WHIRLPOOL_CTX *c,const void *_inp,size_t bytes)-
9 {-
10-
11-
12-
13-
14 size_t chunk = ((size_t)1)<<(sizeof(size_t)*8-4);-
15 const unsigned char *inp = _inp;-
16-
17 while (bytes>=chunk
bytes>=chunkDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
18 {-
19 WHIRLPOOL_BitUpdate(c,inp,chunk*8);-
20 bytes -= chunk;-
21 inp += chunk;-
22 }
never executed: end of block
0
23 if (bytes
bytesDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
24 WHIRLPOOL_BitUpdate(c,inp,bytes*8);
never executed: WHIRLPOOL_BitUpdate(c,inp,bytes*8);
0
25-
26 return
never executed: return(1);
(1);
never executed: return(1);
0
27 }-
28-
29void WHIRLPOOL_BitUpdate(WHIRLPOOL_CTX *c,const void *_inp,size_t bits)-
30 {-
31 size_t n;-
32 unsigned int bitoff = c->bitoff,-
33 bitrem = bitoff%8,-
34 inpgap = (8-(unsigned int)bits%8)&7;-
35 const unsigned char *inp=_inp;-
36-
37-
38-
39-
40 c->bitlen[0] += bits;-
41 if (c->bitlen[0] < bits
c->bitlen[0] < bitsDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
42 {-
43 n = 1;-
44 do { c->bitlen[n]++;-
45 }
never executed: end of block
 while(c->bitlen[n]==0
c->bitlen[n]==0Description
TRUEnever evaluated
FALSEnever evaluated
0
46 && ++
++n<((256/8)/sizeof(size_t))Description
TRUEnever evaluated
FALSEnever evaluated
n<((256/8)/sizeof(size_t))
++n<((256/8)/sizeof(size_t))Description
TRUEnever evaluated
FALSEnever evaluated
);		0
47 }
never executed: end of block
0
48-
49-
50 reconsider:
code before this statement never executed: reconsider:
0
51 if (inpgap==0
inpgap==0Description
TRUEnever evaluated
FALSEnever evaluated
 && bitrem==0
bitrem==0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
52 {-
53 while (bits
bitsDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
54 {-
55 if (bitoff==0
bitoff==0Description
TRUEnever evaluated
FALSEnever evaluated
 && (
(n=bits/512)Description
TRUEnever evaluated
FALSEnever evaluated
n=bits/512)
(n=bits/512)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
56 {-
57 whirlpool_block(c,inp,n);-
58 inp += n*512/8;-
59 bits %= 512;-
60 }
never executed: end of block
0
61 else-
62 {-
63 unsigned int byteoff = bitoff/8;-
64-
65 bitrem = 512 - bitoff;-
66 if (bits >= bitrem
bits >= bitremDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
67 {-
68 bits -= bitrem;-
69 bitrem /= 8;-
70 memcpy(c->data+byteoff,inp,bitrem);-
71 inp += bitrem;-
72 whirlpool_block(c,c->data,1);-
73 bitoff = 0;-
74 }
never executed: end of block
0
75 else-
76 {-
77 memcpy(c->data+byteoff,inp,bits/8);-
78 bitoff += (unsigned int)bits;-
79 bits = 0;-
80 }
never executed: end of block
0
81 c->bitoff = bitoff;-
82 }
never executed: end of block
0
83 }-
84 }
never executed: end of block
0
85 else-
86-
87 {-
88 while (bits
bitsDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
89 {-
90 unsigned int byteoff = bitoff/8;-
91 unsigned char b;-
92-
93-
94 if (bitrem==inpgap
bitrem==inpgapDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
95 {-
96 c->data[byteoff++] |= inp[0] & (0xff>>inpgap);-
97 inpgap = 8-inpgap;-
98 bitoff += inpgap; bitrem = 0;-
99 bits -= inpgap; inpgap = 0;-
100 inp++;-
101 if (bitoff==512
bitoff==512Description
TRUEnever evaluated
FALSEnever evaluated
)		0
102 {-
103 whirlpool_block(c,c->data,1);-
104 bitoff = 0;-
105 }
never executed: end of block
0
106 c->bitoff = bitoff;-
107 goto
never executed: goto reconsider;
 reconsider;
never executed: goto reconsider;
0
108 }-
109 else-
110-
111 if (bits>=8
bits>=8Description
TRUEnever evaluated
FALSEnever evaluated
)		0
112 {-
113 b = ((inp[0]<<inpgap) | (inp[1]>>(8-inpgap)));-
114 b &= 0xff;-
115 if (bitrem
bitremDescription
TRUEnever evaluated
FALSEnever evaluated
) c->data[byteoff++] |= b>>bitrem;
never executed: c->data[byteoff++] |= b>>bitrem;
0
116 else c->data[byteoff++] = b;
never executed: c->data[byteoff++] = b;
0
117 bitoff += 8;-
118 bits -= 8;-
119 inp++;-
120 if (bitoff>=512
bitoff>=512Description
TRUEnever evaluated
FALSEnever evaluated
)		0
121 {-
122 whirlpool_block(c,c->data,1);-
123 byteoff = 0;-
124 bitoff %= 512;-
125 }
never executed: end of block
0
126 if (bitrem
bitremDescription
TRUEnever evaluated
FALSEnever evaluated
) c->data[byteoff] = b<<(8-bitrem);
never executed: c->data[byteoff] = b<<(8-bitrem);
0
127 }
never executed: end of block
0
128 else-
129 {-
130 b = (inp[0]<<inpgap)&0xff;-
131 if (bitrem
bitremDescription
TRUEnever evaluated
FALSEnever evaluated
) c->data[byteoff++] |= b>>bitrem;
never executed: c->data[byteoff++] |= b>>bitrem;
0
132 else c->data[byteoff++] = b;
never executed: c->data[byteoff++] = b;
0
133 bitoff += (unsigned int)bits;-
134 if (bitoff==512
bitoff==512Description
TRUEnever evaluated
FALSEnever evaluated
)		0
135 {-
136 whirlpool_block(c,c->data,1);-
137 byteoff = 0;-
138 bitoff %= 512;-
139 }
never executed: end of block
0
140 if (bitrem
bitremDescription
TRUEnever evaluated
FALSEnever evaluated
) c->data[byteoff] = b<<(8-bitrem);
never executed: c->data[byteoff] = b<<(8-bitrem);
0
141 bits = 0;-
142 }
never executed: end of block
0
143 c->bitoff = bitoff;-
144 }
never executed: end of block
0
145 }
never executed: end of block
0
146 }-
147-
148int WHIRLPOOL_Final (unsigned char *md,WHIRLPOOL_CTX *c)-
149 {-
150 unsigned int bitoff = c->bitoff,-
151 byteoff = bitoff/8;-
152 size_t i,j,v;-
153 unsigned char *p;-
154-
155 bitoff %= 8;-
156 if (bitoff
bitoffDescription
TRUEnever evaluated
FALSEnever evaluated
) c->data[byteoff] |= 0x80>>bitoff;
never executed: c->data[byteoff] |= 0x80>>bitoff;
0
157 else c->data[byteoff] = 0x80;
never executed: c->data[byteoff] = 0x80;
0
158 byteoff++;-
159-
160-
161 if (byteoff > (512/8-(256/8))
byteoff > (512/8-(256/8))Description
TRUEnever evaluated
FALSEnever evaluated
)		0
162 {-
163 if (byteoff<512/8
byteoff<512/8Description
TRUEnever evaluated
FALSEnever evaluated
)		0
164 memset(&c->data[byteoff],0,512/8-byteoff);
never executed: memset(&c->data[byteoff],0,512/8-byteoff);
0
165 whirlpool_block(c,c->data,1);-
166 byteoff = 0;-
167 }
never executed: end of block
0
168 if (byteoff < (512/8-(256/8))
byteoff < (512/8-(256/8))Description
TRUEnever evaluated
FALSEnever evaluated
)		0
169 memset(&c->data[byteoff],0,
never executed: memset(&c->data[byteoff],0, (512/8-(256/8))-byteoff);
0
170 (512/8-(256/8))-byteoff);
never executed: memset(&c->data[byteoff],0, (512/8-(256/8))-byteoff);
0
171-
172 p = &c->data[512/8-1];-
173 for(i=0;i<(256/8)/sizeof(size_t)
i<(256/8)/sizeof(size_t)Description
TRUEnever evaluated
FALSEnever evaluated
;i++)		0
174 for(v=c->bitlen[i],j=0;j<sizeof(size_t)
j<sizeof(size_t)Description
TRUEnever evaluated
FALSEnever evaluated
;j++,v>>=8)		0
175 *
never executed: *p-- = (unsigned char)(v&0xff);
p-- = (unsigned char)(v&0xff);
never executed: *p-- = (unsigned char)(v&0xff);
0
176-
177 whirlpool_block(c,c->data,1);-
178-
179 if (md
mdDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
180 memcpy(md,c->H.c,(512/8));-
181 memset(c,0,sizeof(*c));-
182 return
never executed: return(1);
(1);
never executed: return(1);
0
183 }-
184 return
never executed: return(0);
(0);
never executed: return(0);
0
185 }-
186-
187unsigned char *WHIRLPOOL(const void *inp, size_t bytes,unsigned char *md)-
188 {-
189 WHIRLPOOL_CTX ctx;-
190 static unsigned char m[(512/8)];-
191-
192 if (md ==
md == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
193 ((void *)0)
md == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
194 ) md=m;
never executed: md=m;
0
195 WHIRLPOOL_Init(&ctx);-
196 WHIRLPOOL_Update(&ctx,inp,bytes);-
197 WHIRLPOOL_Final(md,&ctx);-
198 return
never executed: return(md);
(md);
never executed: return(md);
0
199 }-
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