dh_kdf.c

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Source

Count

1

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2

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3

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4

static int skip_asn1(unsigned char **pp, long *plen, int exptag)

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5

{

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6

const unsigned char *q = *pp;

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int i, tag, xclass;

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8

long tmplen;

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9

i = ASN1_get_object(&q, &tmplen, &tag, &xclass, *plen);

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10

if (i & 0x80

i & 0x80	Description
TRUE	never evaluated
FALSE	evaluated 8 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-8

11

return

never executed: return 0;

0;

never executed: return 0;

0

12

if (tag != exptag

tag != exptag	Description
TRUE	never evaluated
FALSE	evaluated 8 times by 1 test Evaluated by: libcrypto.so.1.1

|| xclass != 0x00

xclass != 0x00	Description
TRUE	never evaluated
FALSE	evaluated 8 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-8

13

return

never executed: return 0;

0;

never executed: return 0;

0

14

if (tag == 6

tag == 6	Description
TRUE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 6 times by 1 test Evaluated by: libcrypto.so.1.1

)

2-6

15

q += tmplen;

executed 2 times by 1 test: q += tmplen;

Executed by:

libcrypto.so.1.1

2

16

*plen -= q - *pp;

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17

*pp = (unsigned char *)q;

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18

return

executed 8 times by 1 test: return 1;

Executed by:

libcrypto.so.1.1

1;

executed 8 times by 1 test: return 1;

Executed by:

libcrypto.so.1.1

8

19

}

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static int dh_sharedinfo_encode(unsigned char **pder, unsigned char **pctr,

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27

ASN1_OBJECT *key_oid, size_t outlen,

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28

const unsigned char *ukm, size_t ukmlen)

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29

{

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30

unsigned char *p;

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31

int derlen;

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32

long tlen;

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33

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34

static unsigned char ctr[4] = { 0xF3, 0x17, 0x22, 0x53 };

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X509_ALGOR atmp;

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36

ASN1_OCTET_STRING ctr_oct, ukm_oct, *pukm_oct;

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37

ASN1_TYPE ctr_atype;

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38

if (ukmlen > (1L << 30)

ukmlen > (1L << 30)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

|| outlen > (1L << 30)

outlen > (1L << 30)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

39

return

never executed: return 0;

0;

never executed: return 0;

0

40

ctr_oct.data = ctr;

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41

ctr_oct.length = 4;

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42

ctr_oct.flags = 0;

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43

ctr_oct.type = 4;

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ctr_atype.type = 4;

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ctr_atype.value.octet_string = &ctr_oct;

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atmp.algorithm = key_oid;

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47

atmp.parameter = &ctr_atype;

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48

if (ukm

ukm	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

) {

0-2

49

ukm_oct.type = 4;

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50

ukm_oct.flags = 0;

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51

ukm_oct.data = (unsigned char *)ukm;

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52

ukm_oct.length = ukmlen;

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53

pukm_oct = &ukm_oct;

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54

}

never executed: end of block

else

0

55

pukm_oct =

executed 2 times by 1 test: pukm_oct = ((void *)0) ;

Executed by:

libcrypto.so.1.1

2

56

((void *)0)

executed 2 times by 1 test: pukm_oct = ((void *)0) ;

Executed by:

libcrypto.so.1.1

2

57

;

executed 2 times by 1 test: pukm_oct = ((void *)0) ;

Executed by:

libcrypto.so.1.1

2

58

derlen = CMS_SharedInfo_encode(pder, &atmp, pukm_oct, outlen);

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59

if (derlen <= 0

derlen <= 0	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

60

return

never executed: return 0;

0;

never executed: return 0;

0

61

p = *pder;

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62

tlen = derlen;

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63

if (!skip_asn1(&p, &tlen, 16)

!skip_asn1(&p, &tlen, 16)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

64

return

never executed: return 0;

0;

never executed: return 0;

0

65

if (!skip_asn1(&p, &tlen, 16)

!skip_asn1(&p, &tlen, 16)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

66

return

never executed: return 0;

0;

never executed: return 0;

0

67

if (!skip_asn1(&p, &tlen, 6)

!skip_asn1(&p, &tlen, 6)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

68

return

never executed: return 0;

0;

never executed: return 0;

0

69

if (!skip_asn1(&p, &tlen, 4)

!skip_asn1(&p, &tlen, 4)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

70

return

never executed: return 0;

0;

never executed: return 0;

0

71

if (CRYPTO_memcmp(p, ctr, 4)

CRYPTO_memcmp(p, ctr, 4)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

72

return

never executed: return 0;

0;

never executed: return 0;

0

73

*pctr = p;

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74

return

executed 2 times by 1 test: return derlen;

Executed by:

libcrypto.so.1.1

derlen;

executed 2 times by 1 test: return derlen;

Executed by:

libcrypto.so.1.1

2

75

}

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76

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77

int DH_KDF_X9_42(unsigned char *out, size_t outlen,

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78

const unsigned char *Z, size_t Zlen,

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79

ASN1_OBJECT *key_oid,

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80

const unsigned char *ukm, size_t ukmlen, const EVP_MD *md)

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81

{

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82

EVP_MD_CTX *mctx =

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83

((void *)0)

-

84

;

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85

int rv = 0;

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86

unsigned int i;

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87

size_t mdlen;

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88

unsigned char *der =

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89

((void *)0)

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90

, *ctr;

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91

int derlen;

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92

if (Zlen > (1L << 30)

Zlen > (1L << 30)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

93

return

never executed: return 0;

0;

never executed: return 0;

0

94

mctx = EVP_MD_CTX_new();

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95

if (mctx ==

mctx == ((void *)0)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

0-2

96

((void *)0)

mctx == ((void *)0)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

0-2

97

)

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98

return

never executed: return 0;

0;

never executed: return 0;

0

99

mdlen = EVP_MD_size(md);

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100

derlen = dh_sharedinfo_encode(&der, &ctr, key_oid, outlen, ukm, ukmlen);

-

101

if (derlen == 0

derlen == 0	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

102

goto

never executed: goto err;

err;

never executed: goto err;

0

103

for (i = 1;; i++) {

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104

unsigned char mtmp[64];

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105

if (!EVP_DigestInit_ex(mctx, md,

!EVP_DigestIni... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

0-2

106

((void *)0)

!EVP_DigestIni... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

0-2

107

)

!EVP_DigestIni... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

0-2

108

|| !EVP_DigestUpdate(mctx, Z, Zlen)

!EVP_DigestUpd...mctx, Z, Zlen)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

109

goto

never executed: goto err;

err;

never executed: goto err;

0

110

ctr[3] = i & 0xFF;

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111

ctr[2] = (i >> 8) & 0xFF;

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112

ctr[1] = (i >> 16) & 0xFF;

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113

ctr[0] = (i >> 24) & 0xFF;

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114

if (!EVP_DigestUpdate(mctx, der, derlen)

!EVP_DigestUpd..., der, derlen)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

115

goto

never executed: goto err;

err;

never executed: goto err;

0

116

if (outlen >= mdlen

outlen >= mdlen	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

) {

0-2

117

if (!EVP_DigestFinal(mctx, out,

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	never evaluated

0

118

((void *)0)

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	never evaluated

0

119

)

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	never evaluated

)

0

120

goto

never executed: goto err;

err;

never executed: goto err;

0

121

outlen -= mdlen;

-

122

if (outlen == 0

outlen == 0	Description
TRUE	never evaluated
FALSE	never evaluated

)

0

123

break;

never executed: break;

0

124

out += mdlen;

-

125

}

never executed: end of block

else {

0

126

if (!EVP_DigestFinal(mctx, mtmp,

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

0-2

127

((void *)0)

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

0-2

128

)

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-2

129

goto

never executed: goto err;

err;

never executed: goto err;

0

130

memcpy(out, mtmp, outlen);

-

131

OPENSSL_cleanse(mtmp, mdlen);

-

132

break;

executed 2 times by 1 test: break;

Executed by:

libcrypto.so.1.1

2

133

}

-

134

}

-

135

rv = 1;

-

136

err:

code before this statement executed 2 times by 1 test: err:

Executed by:

libcrypto.so.1.1

2

137

CRYPTO_free(der, __FILE__, 146);

-

138

EVP_MD_CTX_free(mctx);

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139

return

executed 2 times by 1 test: return rv;

Executed by:

libcrypto.so.1.1

rv;

executed 2 times by 1 test: return rv;

Executed by:

libcrypto.so.1.1

2

140

}

-