OpenCoverage

c_skey.c

Absolute File Name:

/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/cast/c_skey.c

Source code

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Line Source Count

1 /* -

3 * -

4 * Licensed under the OpenSSL license (the "License"). You may not use -

5 * this file except in compliance with the License. You can obtain a copy -

6 * in the file LICENSE in the source distribution or at -

7 * https://www.openssl.org/source/license.html -

8 */ -

9 -

10 #include <openssl/cast.h> -

11 #include "cast_lcl.h" -

12 #include "cast_s.h" -

13 -

14 #define CAST_exp(l,A,a,n) \ -

15 A[n/4]=l; \ -

16 a[n+3]=(l )&0xff; \ -

17 a[n+2]=(l>> 8)&0xff; \ -

18 a[n+1]=(l>>16)&0xff; \ -

19 a[n+0]=(l>>24)&0xff; -

20 -

21 #define S4 CAST_S_table4 -

22 #define S5 CAST_S_table5 -

23 #define S6 CAST_S_table6 -

24 #define S7 CAST_S_table7 -

25 -

26 void CAST_set_key(CAST_KEY *key, int len, const unsigned char *data) -

27 { -

28 CAST_LONG x[16]; -

29 CAST_LONG z[16]; -

30 CAST_LONG k[32]; -

31 CAST_LONG X[4], Z[4]; -

32 CAST_LONG l, *K; -

33 int i; -

34 -

for (i = 0; i < 16; i++)

i < 16	Description
TRUE	evaluated 32000624 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 2000039 times by 1 test Evaluated by: libcrypto.so.1.1

2000039-32000624

x[i] = 0;

executed 32000624 times by 1 test: x[i] = 0;

Executed by:

libcrypto.so.1.1

32000624

if (len > 16)

len > 16	Description
TRUE	never evaluated
FALSE	evaluated 2000039 times by 1 test Evaluated by: libcrypto.so.1.1

0-2000039

len = 16;

never executed: len = 16;

for (i = 0; i < len; i++)

i < len	Description
TRUE	evaluated 32000607 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 2000039 times by 1 test Evaluated by: libcrypto.so.1.1

2000039-32000607

x[i] = data[i];

executed 32000607 times by 1 test: x[i] = data[i];

Executed by:

libcrypto.so.1.1

32000607

if (len <= 10)

len <= 10	Description
TRUE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 2000037 times by 1 test Evaluated by: libcrypto.so.1.1

2-2000037

key->short_key = 1;

executed 2 times by 1 test: key->short_key = 1;

Executed by:

libcrypto.so.1.1

43 else -

key->short_key = 0;

executed 2000037 times by 1 test: key->short_key = 0;

Executed by:

libcrypto.so.1.1

2000037

45 -

46 K = &k[0]; -

47 X[0] = ((x[0] << 24) | (x[1] << 16) | (x[2] << 8) | x[3]) & 0xffffffffL; -

48 X[1] = ((x[4] << 24) | (x[5] << 16) | (x[6] << 8) | x[7]) & 0xffffffffL; -

49 X[2] = ((x[8] << 24) | (x[9] << 16) | (x[10] << 8) | x[11]) & 0xffffffffL; -

50 X[3] = -

51 ((x[12] << 24) | (x[13] << 16) | (x[14] << 8) | x[15]) & 0xffffffffL; -

52 -

53 for (;;) { -

54 l = X[0] ^ S4[x[13]] ^ S5[x[15]] ^ S6[x[12]] ^ S7[x[14]] ^ S6[x[8]]; -

55 CAST_exp(l, Z, z, 0); -

56 l = X[2] ^ S4[z[0]] ^ S5[z[2]] ^ S6[z[1]] ^ S7[z[3]] ^ S7[x[10]]; -

57 CAST_exp(l, Z, z, 4); -

58 l = X[3] ^ S4[z[7]] ^ S5[z[6]] ^ S6[z[5]] ^ S7[z[4]] ^ S4[x[9]]; -

59 CAST_exp(l, Z, z, 8); -

60 l = X[1] ^ S4[z[10]] ^ S5[z[9]] ^ S6[z[11]] ^ S7[z[8]] ^ S5[x[11]]; -

61 CAST_exp(l, Z, z, 12); -

62 -

63 K[0] = S4[z[8]] ^ S5[z[9]] ^ S6[z[7]] ^ S7[z[6]] ^ S4[z[2]]; -

64 K[1] = S4[z[10]] ^ S5[z[11]] ^ S6[z[5]] ^ S7[z[4]] ^ S5[z[6]]; -

65 K[2] = S4[z[12]] ^ S5[z[13]] ^ S6[z[3]] ^ S7[z[2]] ^ S6[z[9]]; -

66 K[3] = S4[z[14]] ^ S5[z[15]] ^ S6[z[1]] ^ S7[z[0]] ^ S7[z[12]]; -

67 -

68 l = Z[2] ^ S4[z[5]] ^ S5[z[7]] ^ S6[z[4]] ^ S7[z[6]] ^ S6[z[0]]; -

69 CAST_exp(l, X, x, 0); -

70 l = Z[0] ^ S4[x[0]] ^ S5[x[2]] ^ S6[x[1]] ^ S7[x[3]] ^ S7[z[2]]; -

71 CAST_exp(l, X, x, 4); -

72 l = Z[1] ^ S4[x[7]] ^ S5[x[6]] ^ S6[x[5]] ^ S7[x[4]] ^ S4[z[1]]; -

73 CAST_exp(l, X, x, 8); -

74 l = Z[3] ^ S4[x[10]] ^ S5[x[9]] ^ S6[x[11]] ^ S7[x[8]] ^ S5[z[3]]; -

75 CAST_exp(l, X, x, 12); -

76 -

77 K[4] = S4[x[3]] ^ S5[x[2]] ^ S6[x[12]] ^ S7[x[13]] ^ S4[x[8]]; -

78 K[5] = S4[x[1]] ^ S5[x[0]] ^ S6[x[14]] ^ S7[x[15]] ^ S5[x[13]]; -

79 K[6] = S4[x[7]] ^ S5[x[6]] ^ S6[x[8]] ^ S7[x[9]] ^ S6[x[3]]; -

80 K[7] = S4[x[5]] ^ S5[x[4]] ^ S6[x[10]] ^ S7[x[11]] ^ S7[x[7]]; -

81 -

82 l = X[0] ^ S4[x[13]] ^ S5[x[15]] ^ S6[x[12]] ^ S7[x[14]] ^ S6[x[8]]; -

83 CAST_exp(l, Z, z, 0); -

84 l = X[2] ^ S4[z[0]] ^ S5[z[2]] ^ S6[z[1]] ^ S7[z[3]] ^ S7[x[10]]; -

85 CAST_exp(l, Z, z, 4); -

86 l = X[3] ^ S4[z[7]] ^ S5[z[6]] ^ S6[z[5]] ^ S7[z[4]] ^ S4[x[9]]; -

87 CAST_exp(l, Z, z, 8); -

88 l = X[1] ^ S4[z[10]] ^ S5[z[9]] ^ S6[z[11]] ^ S7[z[8]] ^ S5[x[11]]; -

89 CAST_exp(l, Z, z, 12); -

90 -

91 K[8] = S4[z[3]] ^ S5[z[2]] ^ S6[z[12]] ^ S7[z[13]] ^ S4[z[9]]; -

92 K[9] = S4[z[1]] ^ S5[z[0]] ^ S6[z[14]] ^ S7[z[15]] ^ S5[z[12]]; -

93 K[10] = S4[z[7]] ^ S5[z[6]] ^ S6[z[8]] ^ S7[z[9]] ^ S6[z[2]]; -

94 K[11] = S4[z[5]] ^ S5[z[4]] ^ S6[z[10]] ^ S7[z[11]] ^ S7[z[6]]; -

95 -

96 l = Z[2] ^ S4[z[5]] ^ S5[z[7]] ^ S6[z[4]] ^ S7[z[6]] ^ S6[z[0]]; -

97 CAST_exp(l, X, x, 0); -

98 l = Z[0] ^ S4[x[0]] ^ S5[x[2]] ^ S6[x[1]] ^ S7[x[3]] ^ S7[z[2]]; -

99 CAST_exp(l, X, x, 4); -

100 l = Z[1] ^ S4[x[7]] ^ S5[x[6]] ^ S6[x[5]] ^ S7[x[4]] ^ S4[z[1]]; -

101 CAST_exp(l, X, x, 8); -

102 l = Z[3] ^ S4[x[10]] ^ S5[x[9]] ^ S6[x[11]] ^ S7[x[8]] ^ S5[z[3]]; -

103 CAST_exp(l, X, x, 12); -

104 -

105 K[12] = S4[x[8]] ^ S5[x[9]] ^ S6[x[7]] ^ S7[x[6]] ^ S4[x[3]]; -

106 K[13] = S4[x[10]] ^ S5[x[11]] ^ S6[x[5]] ^ S7[x[4]] ^ S5[x[7]]; -

107 K[14] = S4[x[12]] ^ S5[x[13]] ^ S6[x[3]] ^ S7[x[2]] ^ S6[x[8]]; -

108 K[15] = S4[x[14]] ^ S5[x[15]] ^ S6[x[1]] ^ S7[x[0]] ^ S7[x[13]]; -

109

if (K != k)

K != k	Description
TRUE	evaluated 2000039 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 2000039 times by 1 test Evaluated by: libcrypto.so.1.1

2000039

110

break;

executed 2000039 times by 1 test: break;

Executed by:

libcrypto.so.1.1

2000039

111 K += 16; -

112

}

executed 2000039 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

2000039

113 -

114

for (i = 0; i < 16; i++) {

i < 16	Description
TRUE	evaluated 32000624 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 2000039 times by 1 test Evaluated by: libcrypto.so.1.1

2000039-32000624

115 key->data[i * 2] = k[i]; -

116 key->data[i * 2 + 1] = ((k[i + 16]) + 16) & 0x1f; -

117

}

executed 32000624 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

32000624

118

}

executed 2000039 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

2000039

Source code

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