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ncbc_enc.c #2

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/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/des/ncbc_enc.c

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1 /* $OpenBSD: ncbc_enc.c,v 1.7 2014/10/28 07:35:58 jsg Exp $ */ -

2 /* -

3 * #included by: -

4 * cbc_enc.c (DES_cbc_encrypt) -

5 * des_enc.c (DES_ncbc_encrypt) -

6 */ -

9 * -

10 * This package is an SSL implementation written -

11 * by Eric Young (eay@cryptsoft.com). -

12 * The implementation was written so as to conform with Netscapes SSL. -

13 * -

14 * This library is free for commercial and non-commercial use as long as -

15 * the following conditions are aheared to. The following conditions -

16 * apply to all code found in this distribution, be it the RC4, RSA, -

17 * lhash, DES, etc., code; not just the SSL code. The SSL documentation -

18 * included with this distribution is covered by the same copyright terms -

19 * except that the holder is Tim Hudson (tjh@cryptsoft.com). -

20 * -

21 * Copyright remains Eric Young's, and as such any Copyright notices in -

22 * the code are not to be removed. -

23 * If this package is used in a product, Eric Young should be given attribution -

24 * as the author of the parts of the library used. -

25 * This can be in the form of a textual message at program startup or -

26 * in documentation (online or textual) provided with the package. -

27 * -

28 * Redistribution and use in source and binary forms, with or without -

29 * modification, are permitted provided that the following conditions -

30 * are met: -

31 * 1. Redistributions of source code must retain the copyright -

32 * notice, this list of conditions and the following disclaimer. -

33 * 2. Redistributions in binary form must reproduce the above copyright -

34 * notice, this list of conditions and the following disclaimer in the -

35 * documentation and/or other materials provided with the distribution. -

36 * 3. All advertising materials mentioning features or use of this software -

37 * must display the following acknowledgement: -

38 * "This product includes cryptographic software written by -

39 * Eric Young (eay@cryptsoft.com)" -

40 * The word 'cryptographic' can be left out if the rouines from the library -

41 * being used are not cryptographic related :-). -

42 * 4. If you include any Windows specific code (or a derivative thereof) from -

43 * the apps directory (application code) you must include an acknowledgement: -

44 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" -

45 * -

46 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND -

47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -

48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -

49 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE -

50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -

51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -

52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -

53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -

54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -

55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -

56 * SUCH DAMAGE. -

57 * -

58 * The licence and distribution terms for any publically available version or -

59 * derivative of this code cannot be changed. i.e. this code cannot simply be -

60 * copied and put under another distribution licence -

61 * [including the GNU Public Licence.] -

62 */ -

63 -

64 #include "des_locl.h" -

65 -

66 #ifdef CBC_ENC_C__DONT_UPDATE_IV -

67 void DES_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, -

68 DES_key_schedule *_schedule, DES_cblock *ivec, int enc) -

69 #else -

70 void DES_ncbc_encrypt(const unsigned char *in, unsigned char *out, long length, -

71 DES_key_schedule *_schedule, DES_cblock *ivec, int enc) -

72 #endif -

73 { -

74 DES_LONG tin0,tin1; -

75 DES_LONG tout0,tout1,xor0,xor1; -

76 long l=length; -

77 DES_LONG tin[2]; -

78 unsigned char *iv; -

79 -

80 iv = &(*ivec)[0]; -

81 -

if (enc)

enc	Description
TRUE	evaluated 13 times by 2 tests Evaluated by: destest libcrypto.so.44.0.1
FALSE	evaluated 3 times by 2 tests Evaluated by: destest libcrypto.so.44.0.1

3-13

83 { -

84 c2l(iv,tout0); -

85 c2l(iv,tout1); -

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

l>=0	Description
TRUE	evaluated 251 times by 2 tests Evaluated by: destest libcrypto.so.44.0.1
FALSE	evaluated 13 times by 2 tests Evaluated by: destest libcrypto.so.44.0.1

13-251

87 { -

88 c2l(in,tin0); -

89 c2l(in,tin1); -

90 tin0^=tout0; tin[0]=tin0; -

91 tin1^=tout1; tin[1]=tin1; -

92 DES_encrypt1((DES_LONG *)tin,_schedule,DES_ENCRYPT); -

93 tout0=tin[0]; l2c(tout0,out); -

94 tout1=tin[1]; l2c(tout1,out); -

}

executed 251 times by 2 tests: end of block

Executed by:

destest
libcrypto.so.44.0.1

251

if (l != -8)

l != -8	Description
TRUE	evaluated 9 times by 1 test Evaluated by: destest
FALSE	evaluated 4 times by 1 test Evaluated by: libcrypto.so.44.0.1

4-9

97 { -

c2ln(in,tin0,tin1,l+8);

executed 9 times by 1 test: end of block

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0-9

99 tin0^=tout0; tin[0]=tin0; -

100 tin1^=tout1; tin[1]=tin1; -

101 DES_encrypt1((DES_LONG *)tin,_schedule,DES_ENCRYPT); -

102 tout0=tin[0]; l2c(tout0,out); -

103 tout1=tin[1]; l2c(tout1,out); -

104

}

executed 9 times by 1 test: end of block

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destest

105 #ifndef CBC_ENC_C__DONT_UPDATE_IV -

106 iv = &(*ivec)[0]; -

107 l2c(tout0,iv); -

108 l2c(tout1,iv); -

109 #endif -

110

}

executed 13 times by 2 tests: end of block

Executed by:

destest
libcrypto.so.44.0.1

111 else -

112 { -

113 c2l(iv,xor0); -

114 c2l(iv,xor1); -

115

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

l>=0	Description
TRUE	evaluated 227 times by 2 tests Evaluated by: destest libcrypto.so.44.0.1
FALSE	evaluated 3 times by 2 tests Evaluated by: destest libcrypto.so.44.0.1

3-227

116 { -

117 c2l(in,tin0); tin[0]=tin0; -

118 c2l(in,tin1); tin[1]=tin1; -

119 DES_encrypt1((DES_LONG *)tin,_schedule,DES_DECRYPT); -

120 tout0=tin[0]^xor0; -

121 tout1=tin[1]^xor1; -

122 l2c(tout0,out); -

123 l2c(tout1,out); -

124 xor0=tin0; -

125 xor1=tin1; -

126

}

executed 227 times by 2 tests: end of block

Executed by:

destest
libcrypto.so.44.0.1

227

127

if (l != -8)

l != -8	Description
TRUE	evaluated 1 time by 1 test Evaluated by: destest
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.44.0.1

1-2

128 { -

129 c2l(in,tin0); tin[0]=tin0; -

130 c2l(in,tin1); tin[1]=tin1; -

131 DES_encrypt1((DES_LONG *)tin,_schedule,DES_DECRYPT); -

132 tout0=tin[0]^xor0; -

133 tout1=tin[1]^xor1; -

134

l2cn(tout0,tout1,out,l+8);

executed 1 time by 1 test: end of block

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code before this statement never executed: case 7:

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executed 1 time by 1 test: case 1:

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0-1

135 #ifndef CBC_ENC_C__DONT_UPDATE_IV -

136 xor0=tin0; -

137 xor1=tin1; -

138 #endif -

139

}

executed 1 time by 1 test: end of block

Executed by:

destest

140 #ifndef CBC_ENC_C__DONT_UPDATE_IV -

141 iv = &(*ivec)[0]; -

142 l2c(xor0,iv); -

143 l2c(xor1,iv); -

144 #endif -

145

}

executed 3 times by 2 tests: end of block

Executed by:

destest
libcrypto.so.44.0.1

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

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

148

}

executed 16 times by 2 tests: end of block

Executed by:

destest
libcrypto.so.44.0.1

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