OpenCoverage

bf_enc.c

Absolute File Name:

/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/bf/bf_enc.c

Source code

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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/blowfish.h> -

11 #include "bf_locl.h" -

12 -

13 /* -

14 * Blowfish as implemented from 'Blowfish: Springer-Verlag paper' (From -

15 * LECTURE NOTES IN COMPUTER SCIENCE 809, FAST SOFTWARE ENCRYPTION, CAMBRIDGE -

16 * SECURITY WORKSHOP, CAMBRIDGE, U.K., DECEMBER 9-11, 1993) -

17 */ -

18 -

19 #if (BF_ROUNDS != 16) && (BF_ROUNDS != 20) -

20 # error If you set BF_ROUNDS to some value other than 16 or 20, you will have \ -

21 to modify the code. -

22 #endif -

23 -

24 void BF_encrypt(BF_LONG *data, const BF_KEY *key) -

25 { -

26 register BF_LONG l, r; -

27 register const BF_LONG *p, *s; -

28 -

29 p = key->P; -

30 s = &(key->S[0]); -

31 l = data[0]; -

32 r = data[1]; -

33 -

34 l ^= p[0]; -

35 BF_ENC(r, l, s, p[1]); -

36 BF_ENC(l, r, s, p[2]); -

37 BF_ENC(r, l, s, p[3]); -

38 BF_ENC(l, r, s, p[4]); -

39 BF_ENC(r, l, s, p[5]); -

40 BF_ENC(l, r, s, p[6]); -

41 BF_ENC(r, l, s, p[7]); -

42 BF_ENC(l, r, s, p[8]); -

43 BF_ENC(r, l, s, p[9]); -

44 BF_ENC(l, r, s, p[10]); -

45 BF_ENC(r, l, s, p[11]); -

46 BF_ENC(l, r, s, p[12]); -

47 BF_ENC(r, l, s, p[13]); -

48 BF_ENC(l, r, s, p[14]); -

49 BF_ENC(r, l, s, p[15]); -

50 BF_ENC(l, r, s, p[16]); -

51 # if BF_ROUNDS == 20 -

52 BF_ENC(r, l, s, p[17]); -

53 BF_ENC(l, r, s, p[18]); -

54 BF_ENC(r, l, s, p[19]); -

55 BF_ENC(l, r, s, p[20]); -

56 # endif -

57 r ^= p[BF_ROUNDS + 1]; -

58 -

59 data[1] = l & 0xffffffffU; -

60 data[0] = r & 0xffffffffU; -

}

executed 55319 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

55319

62 -

63 void BF_decrypt(BF_LONG *data, const BF_KEY *key) -

64 { -

65 register BF_LONG l, r; -

66 register const BF_LONG *p, *s; -

67 -

68 p = key->P; -

69 s = &(key->S[0]); -

70 l = data[0]; -

71 r = data[1]; -

72 -

73 l ^= p[BF_ROUNDS + 1]; -

74 # if BF_ROUNDS == 20 -

75 BF_ENC(r, l, s, p[20]); -

76 BF_ENC(l, r, s, p[19]); -

77 BF_ENC(r, l, s, p[18]); -

78 BF_ENC(l, r, s, p[17]); -

79 # endif -

80 BF_ENC(r, l, s, p[16]); -

81 BF_ENC(l, r, s, p[15]); -

82 BF_ENC(r, l, s, p[14]); -

83 BF_ENC(l, r, s, p[13]); -

84 BF_ENC(r, l, s, p[12]); -

85 BF_ENC(l, r, s, p[11]); -

86 BF_ENC(r, l, s, p[10]); -

87 BF_ENC(l, r, s, p[9]); -

88 BF_ENC(r, l, s, p[8]); -

89 BF_ENC(l, r, s, p[7]); -

90 BF_ENC(r, l, s, p[6]); -

91 BF_ENC(l, r, s, p[5]); -

92 BF_ENC(r, l, s, p[4]); -

93 BF_ENC(l, r, s, p[3]); -

94 BF_ENC(r, l, s, p[2]); -

95 BF_ENC(l, r, s, p[1]); -

96 r ^= p[0]; -

97 -

98 data[1] = l & 0xffffffffU; -

99 data[0] = r & 0xffffffffU; -

100

}

executed 2644 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

2644

101 -

102 void BF_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, -

103 const BF_KEY *schedule, unsigned char *ivec, int encrypt) -

104 { -

105 register BF_LONG tin0, tin1; -

106 register BF_LONG tout0, tout1, xor0, xor1; -

107 register long l = length; -

108 BF_LONG tin[2]; -

109 -

110

if (encrypt) {

encrypt	Description
TRUE	evaluated 155 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 108 times by 1 test Evaluated by: libcrypto.so.1.1

108-155

111 n2l(ivec, tout0); -

112 n2l(ivec, tout1); -

113 ivec -= 8; -

114

for (l -= 8; l >= 0; l -= 8) {

l >= 0	Description
TRUE	evaluated 1821 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 155 times by 1 test Evaluated by: libcrypto.so.1.1

155-1821

115 n2l(in, tin0); -

116 n2l(in, tin1); -

117 tin0 ^= tout0; -

118 tin1 ^= tout1; -

119 tin[0] = tin0; -

120 tin[1] = tin1; -

121 BF_encrypt(tin, schedule); -

122 tout0 = tin[0]; -

123 tout1 = tin[1]; -

124 l2n(tout0, out); -

125 l2n(tout1, out); -

126

}

executed 1821 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

1821

127

if (l != -8) {

l != -8	Description
TRUE	evaluated 1 time by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 154 times by 1 test Evaluated by: libcrypto.so.1.1

1-154

128

n2ln(in, tin0, tin1, l + 8);

executed 1 time by 1 test: end of block

Executed by:

libcrypto.so.1.1

code before this statement never executed: case 7:

code before this statement never executed: case 6:

code before this statement never executed: case 5:

code before this statement executed 1 time by 1 test: case 4:

Executed by:

libcrypto.so.1.1

code before this statement executed 1 time by 1 test: case 3:

Executed by:

libcrypto.so.1.1

code before this statement executed 1 time by 1 test: case 2:

Executed by:

libcrypto.so.1.1

code before this statement executed 1 time by 1 test: case 1:

Executed by:

libcrypto.so.1.1

never executed: case 8:

never executed: case 7:

never executed: case 6:

executed 1 time by 1 test: case 5:

Executed by:

libcrypto.so.1.1

never executed: case 4:

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never executed: case 2:

executed 1 time by 1 test: case 1:

Executed by:

libcrypto.so.1.1

0-1

129 tin0 ^= tout0; -

130 tin1 ^= tout1; -

131 tin[0] = tin0; -

132 tin[1] = tin1; -

133 BF_encrypt(tin, schedule); -

134 tout0 = tin[0]; -

135 tout1 = tin[1]; -

136 l2n(tout0, out); -

137 l2n(tout1, out); -

138

}

executed 1 time by 1 test: end of block

Executed by:

libcrypto.so.1.1

139 l2n(tout0, ivec); -

140 l2n(tout1, ivec); -

141

} else {

executed 155 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

155

142 n2l(ivec, xor0); -

143 n2l(ivec, xor1); -

144 ivec -= 8; -

145

for (l -= 8; l >= 0; l -= 8) {

l >= 0	Description
TRUE	evaluated 1821 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 108 times by 1 test Evaluated by: libcrypto.so.1.1

108-1821

146 n2l(in, tin0); -

147 n2l(in, tin1); -

148 tin[0] = tin0; -

149 tin[1] = tin1; -

150 BF_decrypt(tin, schedule); -

151 tout0 = tin[0] ^ xor0; -

152 tout1 = tin[1] ^ xor1; -

153 l2n(tout0, out); -

154 l2n(tout1, out); -

155 xor0 = tin0; -

156 xor1 = tin1; -

157

}

executed 1821 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

1821

158

if (l != -8) {

l != -8	Description
TRUE	evaluated 1 time by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 107 times by 1 test Evaluated by: libcrypto.so.1.1

1-107

159 n2l(in, tin0); -

160 n2l(in, tin1); -

161 tin[0] = tin0; -

162 tin[1] = tin1; -

163 BF_decrypt(tin, schedule); -

164 tout0 = tin[0] ^ xor0; -

165 tout1 = tin[1] ^ xor1; -

166

l2nn(tout0, tout1, out, l + 8);

executed 1 time by 1 test: end of block

Executed by:

libcrypto.so.1.1

code before this statement never executed: case 7:

code before this statement never executed: case 6:

code before this statement never executed: case 5:

code before this statement executed 1 time by 1 test: case 4:

Executed by:

libcrypto.so.1.1

code before this statement executed 1 time by 1 test: case 3:

Executed by:

libcrypto.so.1.1

code before this statement executed 1 time by 1 test: case 2:

Executed by:

libcrypto.so.1.1

code before this statement executed 1 time by 1 test: case 1:

Executed by:

libcrypto.so.1.1

never executed: case 8:

never executed: case 7:

never executed: case 6:

executed 1 time by 1 test: case 5:

Executed by:

libcrypto.so.1.1

never executed: case 4:

never executed: case 3:

never executed: case 2:

executed 1 time by 1 test: case 1:

Executed by:

libcrypto.so.1.1

0-1

167 xor0 = tin0; -

168 xor1 = tin1; -

169

}

executed 1 time by 1 test: end of block

Executed by:

libcrypto.so.1.1

170 l2n(xor0, ivec); -

171 l2n(xor1, ivec); -

172

}

executed 108 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

108

173 tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0; -

174 tin[0] = tin[1] = 0; -

175

}

executed 263 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

263

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