cfb128.c

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Source

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1

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void CRYPTO_cfb128_encrypt(const unsigned char *in, unsigned char *out,

-

9

size_t len, const void *key,

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10

unsigned char ivec[16], int *num,

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11

int enc, block128_f block)

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12

{

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13

unsigned int n;

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14

size_t l = 0;

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15

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16

n = *num;

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17

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18

if (enc

enc	Description
TRUE	evaluated 10087 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 10027 times by 1 test Evaluated by: libcrypto.so.1.1

) {

10027-10087

19

-

20

if (16 % sizeof(size_t) == 0

16 % sizeof(size_t) == 0	Description
TRUE	evaluated 10087 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	never evaluated

) {

0-10087

21

do {

-

22

while (n

n	Description
TRUE	evaluated 35028 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 9933 times by 1 test Evaluated by: libcrypto.so.1.1

&& len

len	Description
TRUE	evaluated 34874 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 154 times by 1 test Evaluated by: libcrypto.so.1.1

) {

154-35028

23

*(out++) = ivec[n] ^= *(in++);

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24

--len;

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25

n = (n + 1) % 16;

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26

}

executed 34874 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

34874

-

-

-

-

-

while (len >= 16

len >= 16	Description
TRUE	evaluated 195632 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 10087 times by 1 test Evaluated by: libcrypto.so.1.1

) {

10087-195632

33

(*block) (ivec, ivec, key);

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34

for (; n < 16

n < 16	Description
TRUE	evaluated 391264 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 195632 times by 1 test Evaluated by: libcrypto.so.1.1

; n += sizeof(size_t)) {

195632-391264

35

*(size_t *)(out + n) =

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36

*(size_t *)(ivec + n) ^= *(size_t *)(in + n);

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37

}

executed 391264 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

391264

38

len -= 16;

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39

out += 16;

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40

in += 16;

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41

n = 0;

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42

}

executed 195632 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

195632

43

if (len

len	Description
TRUE	evaluated 4223 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 5864 times by 1 test Evaluated by: libcrypto.so.1.1

) {

4223-5864

44

(*block) (ivec, ivec, key);

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45

while (len--

len--	Description
TRUE	evaluated 32596 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 4223 times by 1 test Evaluated by: libcrypto.so.1.1

) {

4223-32596

46

out[n] = ivec[n] ^= in[n];

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++n;

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}

executed 32596 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

32596

49

}

executed 4223 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

4223

50

*num = n;

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51

return;

executed 10087 times by 1 test: return;

Executed by:

libcrypto.so.1.1

10087

52

} while (0);

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53

}

never executed: end of block

0

54

-

55

-

56

while (l < len

l < len	Description
TRUE	never evaluated
FALSE	never evaluated

) {

0

57

if (n == 0

n == 0	Description
TRUE	never evaluated
FALSE	never evaluated

) {

0

58

(*block) (ivec, ivec, key);

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59

}

never executed: end of block

0

60

out[l] = ivec[n] ^= in[l];

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++l;

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n = (n + 1) % 16;

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63

}

never executed: end of block

0

64

*num = n;

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65

}

never executed: end of block

else {

0

66

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67

if (16 % sizeof(size_t) == 0

16 % sizeof(size_t) == 0	Description
TRUE	evaluated 10027 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	never evaluated

) {

0-10027

68

do {

-

69

while (n

n	Description
TRUE	evaluated 34378 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 9883 times by 1 test Evaluated by: libcrypto.so.1.1

&& len

len	Description
TRUE	evaluated 34234 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 144 times by 1 test Evaluated by: libcrypto.so.1.1

) {

144-34378

70

unsigned char c;

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71

*(out++) = ivec[n] ^ (c = *(in++));

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ivec[n] = c;

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73

--len;

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n = (n + 1) % 16;

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75

}

executed 34234 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

34234

-

-

-

-

-

while (len >= 16

len >= 16	Description
TRUE	evaluated 195672 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 10027 times by 1 test Evaluated by: libcrypto.so.1.1

) {

10027-195672

82

(*block) (ivec, ivec, key);

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83

for (; n < 16

n < 16	Description
TRUE	evaluated 391344 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 195672 times by 1 test Evaluated by: libcrypto.so.1.1

; n += sizeof(size_t)) {

195672-391344

84

size_t t = *(size_t *)(in + n);

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*(size_t *)(out + n) = *(size_t *)(ivec + n) ^ t;

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86

*(size_t *)(ivec + n) = t;

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87

}

executed 391344 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

391344

88

len -= 16;

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89

out += 16;

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in += 16;

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91

n = 0;

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92

}

executed 195672 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

195672

93

if (len

len	Description
TRUE	evaluated 4183 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 5844 times by 1 test Evaluated by: libcrypto.so.1.1

) {

4183-5844

94

(*block) (ivec, ivec, key);

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95

while (len--

len--	Description
TRUE	evaluated 32596 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 4183 times by 1 test Evaluated by: libcrypto.so.1.1

) {

4183-32596

96

unsigned char c;

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97

out[n] = ivec[n] ^ (c = in[n]);

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98

ivec[n] = c;

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99

++n;

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100

}

executed 32596 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

32596

101

}

executed 4183 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

4183

102

*num = n;

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103

return;

executed 10027 times by 1 test: return;

Executed by:

libcrypto.so.1.1

10027

104

} while (0);

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105

}

never executed: end of block

0

106

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while (l < len

l < len	Description
TRUE	never evaluated
FALSE	never evaluated

) {

0

109

unsigned char c;

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110

if (n == 0

n == 0	Description
TRUE	never evaluated
FALSE	never evaluated

) {

0

111

(*block) (ivec, ivec, key);

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112

}

never executed: end of block

0

113

out[l] = ivec[n] ^ (c = in[l]);

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ivec[n] = c;

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++l;

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n = (n + 1) % 16;

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117

}

never executed: end of block

0

118

*num = n;

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119

}

never executed: end of block

0

120

}

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static void cfbr_encrypt_block(const unsigned char *in, unsigned char *out,

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127

int nbits, const void *key,

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128

unsigned char ivec[16], int enc,

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129

block128_f block)

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130

{

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131

int n, rem, num;

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132

unsigned char ovec[16 * 2 + 1];

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133

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134

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135

if (nbits <= 0

nbits <= 0	Description
TRUE	never evaluated
FALSE	evaluated 562212 times by 1 test Evaluated by: libcrypto.so.1.1

|| nbits > 128

nbits > 128	Description
TRUE	never evaluated
FALSE	evaluated 562212 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-562212

136

return;

never executed: return;

0

137

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138

-

139

memcpy(ovec, ivec, 16);

-

140

-

141

(*block) (ivec, ivec, key);

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142

num = (nbits + 7) / 8;

-

143

if (enc

enc	Description
TRUE	evaluated 281106 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 281106 times by 1 test Evaluated by: libcrypto.so.1.1

)

281106

144

for (n = 0; n < num

n < num	Description
TRUE	evaluated 281106 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 281106 times by 1 test Evaluated by: libcrypto.so.1.1

; ++n)

281106

145

out[n] = (ovec[16 + n] = in[n] ^ ivec[n]);

executed 281106 times by 1 test: out[n] = (ovec[16 + n] = in[n] ^ ivec[n]);

Executed by:

libcrypto.so.1.1

281106

146

else

-

147

for (n = 0; n < num

n < num	Description
TRUE	evaluated 281106 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 281106 times by 1 test Evaluated by: libcrypto.so.1.1

; ++n)

281106

148

out[n] = (ovec[16 + n] = in[n]) ^ ivec[n];

executed 281106 times by 1 test: out[n] = (ovec[16 + n] = in[n]) ^ ivec[n];

Executed by:

libcrypto.so.1.1

281106

149

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150

rem = nbits % 8;

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151

num = nbits / 8;

-

152

if (rem == 0

rem == 0	Description
TRUE	evaluated 72708 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 489504 times by 1 test Evaluated by: libcrypto.so.1.1

)

72708-489504

153

memcpy(ivec, ovec + num, 16);

executed 72708 times by 1 test: memcpy(ivec, ovec + num, 16);

Executed by:

libcrypto.so.1.1

72708

154

else

-

155

for (n = 0; n < 16

n < 16	Description
TRUE	evaluated 7832064 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 489504 times by 1 test Evaluated by: libcrypto.so.1.1

; ++n)

489504-7832064

156

ivec[n] = ovec[n + num] << rem | ovec[n + num + 1] >> (8 - rem);

executed 7832064 times by 1 test: ivec[n] = ovec[n + num] << rem | ovec[n + num + 1] >> (8 - rem);

Executed by:

libcrypto.so.1.1

7832064

157

-

158

-

159

}

executed 562212 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

562212

160

-

161

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162

void CRYPTO_cfb128_1_encrypt(const unsigned char *in, unsigned char *out,

-

163

size_t bits, const void *key,

-

164

unsigned char ivec[16], int *num,

-

165

int enc, block128_f block)

-

166

{

-

167

size_t n;

-

168

unsigned char c[1], d[1];

-

169

-

170

for (n = 0; n < bits

n < bits	Description
TRUE	evaluated 489504 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 222 times by 1 test Evaluated by: libcrypto.so.1.1

; ++n) {

222-489504

171

c[0] = (

(in[n / 8] & (... (7 - n % 8)))	Description
TRUE	evaluated 224519 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 264985 times by 1 test Evaluated by: libcrypto.so.1.1

in[n / 8] & (1 << (7 - n % 8)))

(in[n / 8] & (... (7 - n % 8)))	Description
TRUE	evaluated 224519 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 264985 times by 1 test Evaluated by: libcrypto.so.1.1

? 0x80 : 0;

224519-264985

172

cfbr_encrypt_block(c, d, 1, key, ivec, enc, block);

-

173

out[n / 8] = (out[n / 8] & ~(1 << (unsigned int)(7 - n % 8))) |

-

174

((d[0] & 0x80) >> (unsigned int)(n % 8));

-

175

}

executed 489504 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

489504

176

}

executed 222 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

222

177

-

178

void CRYPTO_cfb128_8_encrypt(const unsigned char *in, unsigned char *out,

-

179

size_t length, const void *key,

-

180

unsigned char ivec[16], int *num,

-

181

int enc, block128_f block)

-

182

{

-

183

size_t n;

-

184

-

185

for (n = 0; n < length

n < length	Description
TRUE	evaluated 72708 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 366 times by 1 test Evaluated by: libcrypto.so.1.1

; ++n)

366-72708

186

cfbr_encrypt_block(&in[n], &out[n], 8, key, ivec, enc, block);

executed 72708 times by 1 test: cfbr_encrypt_block(&in[n], &out[n], 8, key, ivec, enc, block);

Executed by:

libcrypto.so.1.1

72708

187

}

executed 366 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

366