ecdh_kdf.c

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Source

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1

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int ECDH_KDF_X9_62(unsigned char *out, size_t outlen,

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7

const unsigned char *Z, size_t Zlen,

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8

const unsigned char *sinfo, size_t sinfolen,

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9

const EVP_MD *md)

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10

{

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11

EVP_MD_CTX *mctx =

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12

((void *)0)

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13

;

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14

int rv = 0;

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15

unsigned int i;

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16

size_t mdlen;

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unsigned char ctr[4];

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18

if (sinfolen > (1 << 30)

sinfolen > (1 << 30)	Description
TRUE	never evaluated
FALSE	evaluated 18 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

|| outlen > (1 << 30)

outlen > (1 << 30)	Description
TRUE	never evaluated
FALSE	evaluated 18 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

0-18

19

|| Zlen > (1 << 30)

Zlen > (1 << 30)	Description
TRUE	never evaluated
FALSE	evaluated 18 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

)

0-18

20

return

never executed: return 0;

0;

never executed: return 0;

0

21

mctx = EVP_MD_CTX_new();

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22

if (mctx ==

mctx == ((void *)0)	Description
TRUE	never evaluated
FALSE	evaluated 18 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

0-18

23

((void *)0)

mctx == ((void *)0)	Description
TRUE	never evaluated
FALSE	evaluated 18 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

0-18

24

)

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25

return

never executed: return 0;

0;

never executed: return 0;

0

26

mdlen = EVP_MD_size(md);

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27

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

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28

unsigned char mtmp[64];

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29

if (!EVP_DigestInit_ex(mctx, md,

!EVP_DigestIni... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 26 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

0-26

30

((void *)0)

!EVP_DigestIni... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 26 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

0-26

31

)

!EVP_DigestIni... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 26 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

)

0-26

32

goto

never executed: goto err;

err;

never executed: goto err;

0

33

ctr[3] = i & 0xFF;

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

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

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

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if (!EVP_DigestUpdate(mctx, Z, Zlen)

!EVP_DigestUpd...mctx, Z, Zlen)	Description
TRUE	never evaluated
FALSE	evaluated 26 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

)

0-26

38

goto

never executed: goto err;

err;

never executed: goto err;

0

39

if (!EVP_DigestUpdate(mctx, ctr, sizeof(ctr))

!EVP_DigestUpd..., sizeof(ctr))	Description
TRUE	never evaluated
FALSE	evaluated 26 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

)

0-26

40

goto

never executed: goto err;

err;

never executed: goto err;

0

41

if (!EVP_DigestUpdate(mctx, sinfo, sinfolen)

!EVP_DigestUpd...nfo, sinfolen)	Description
TRUE	never evaluated
FALSE	evaluated 26 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

)

0-26

42

goto

never executed: goto err;

err;

never executed: goto err;

0

43

if (outlen >= mdlen

outlen >= mdlen	Description
TRUE	evaluated 8 times by 1 test Evaluated by: libcrypto.so.1.1
FALSE	evaluated 18 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

) {

8-18

44

if (!EVP_DigestFinal(mctx, out,

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 8 times by 1 test Evaluated by: libcrypto.so.1.1

0-8

45

((void *)0)

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 8 times by 1 test Evaluated by: libcrypto.so.1.1

0-8

46

)

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 8 times by 1 test Evaluated by: libcrypto.so.1.1

)

0-8

47

goto

never executed: goto err;

err;

never executed: goto err;

0

48

outlen -= mdlen;

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49

if (outlen == 0

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

)

0-8

50

break;

never executed: break;

0

51

out += mdlen;

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52

}

executed 8 times by 1 test: end of block

Executed by:

libcrypto.so.1.1

else {

8

53

if (!EVP_DigestFinal(mctx, mtmp,

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 18 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

0-18

54

((void *)0)

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 18 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

0-18

55

)

!EVP_DigestFin... ((void *)0) )	Description
TRUE	never evaluated
FALSE	evaluated 18 times by 2 tests Evaluated by: libcrypto.so.1.1 sm2_internal_test

)

0-18

56

goto

never executed: goto err;

err;

never executed: goto err;

0

57

memcpy(out, mtmp, outlen);

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58

OPENSSL_cleanse(mtmp, mdlen);

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59

break;

executed 18 times by 2 tests: break;

Executed by:

libcrypto.so.1.1
sm2_internal_test

18

60

}

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61

}

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62

rv = 1;

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63

err:

code before this statement executed 18 times by 2 tests: err:

Executed by:

libcrypto.so.1.1
sm2_internal_test

18

64

EVP_MD_CTX_free(mctx);

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65

return

executed 18 times by 2 tests: return rv;

Executed by:

libcrypto.so.1.1
sm2_internal_test

rv;

executed 18 times by 2 tests: return rv;

Executed by:

libcrypto.so.1.1
sm2_internal_test

18

66

}

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