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chacha.c

Absolute File Name:

/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/chacha/chacha.c

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Preprocessed file

Line Source Count

1 -

2 -

3 -

4 void -

5 ChaCha_set_key(ChaCha_ctx *ctx, const unsigned char *key, uint32_t keybits) -

6 { -

7 chacha_keysetup((chacha_ctx *)ctx, key, keybits); -

8 ctx->unused = 0; -

}

executed 32 times by 2 tests: end of block

Executed by:

chachatest
evptest

10 -

11 void -

12 ChaCha_set_iv(ChaCha_ctx *ctx, const unsigned char *iv, -

13 const unsigned char *counter) -

14 { -

15 chacha_ivsetup((chacha_ctx *)ctx, iv, counter); -

16 ctx->unused = 0; -

}

executed 32 times by 2 tests: end of block

Executed by:

chachatest
evptest

18 -

19 void -

20 ChaCha(ChaCha_ctx *ctx, unsigned char *out, const unsigned char *in, size_t len) -

21 { -

22 unsigned char *k; -

23 int i, l; -

24 -

25 -

if (ctx->unused > 0

ctx->unused > 0	Description
TRUE	evaluated 552 times by 1 test Evaluated by: chachatest
FALSE	evaluated 32 times by 2 tests Evaluated by: chachatest evptest

) {

32-552

27 k = ctx->ks + 64 - ctx->unused; -

l = (

(len > ctx->unused)	Description
TRUE	never evaluated
FALSE	evaluated 552 times by 1 test Evaluated by: chachatest

len > ctx->unused)

(len > ctx->unused)	Description
TRUE	never evaluated
FALSE	evaluated 552 times by 1 test Evaluated by: chachatest

? ctx->unused : len;

0-552

for (i = 0; i < l

i < l	Description
TRUE	evaluated 768 times by 1 test Evaluated by: chachatest
FALSE	evaluated 552 times by 1 test Evaluated by: chachatest

; i++)

552-768

executed 768 times by 1 test: *(out++) = *(in++) ^ *(k++);

Executed by:

chachatest

out++) = *(in++) ^ *(k++);

executed 768 times by 1 test: *(out++) = *(in++) ^ *(k++);

Executed by:

chachatest

768

31 ctx->unused -= l; -

32 len -= l; -

}

executed 552 times by 1 test: end of block

Executed by:

chachatest

552

34 -

35 chacha_encrypt_bytes((chacha_ctx *)ctx, in, out, (uint32_t)len); -

}

executed 584 times by 2 tests: end of block

Executed by:

chachatest
evptest

584

37 -

38 void -

39 CRYPTO_chacha_20(unsigned char *out, const unsigned char *in, size_t len, -

40 const unsigned char key[32], const unsigned char iv[8], uint64_t counter) -

41 { -

42 struct chacha_ctx ctx; -

43 -

44 -

45 -

46 -

47 -

48 -

49 chacha_keysetup(&ctx, key, 256); -

50 chacha_ivsetup(&ctx, iv, -

51 ((void *)0) -

52 ); -

if (counter != 0

counter != 0	Description
TRUE	evaluated 325 times by 3 tests Evaluated by: aeadtest ssltest tlstest
FALSE	evaluated 11 times by 2 tests Evaluated by: aeadtest chachatest

) {

11-325

54 ctx.input[12] = (uint32_t)counter; -

55 ctx.input[13] = (uint32_t)(counter >> 32); -

}

executed 325 times by 3 tests: end of block

Executed by:

aeadtest
ssltest
tlstest

325

57 -

58 chacha_encrypt_bytes(&ctx, in, out, (uint32_t)len); -

}

executed 336 times by 4 tests: end of block

Executed by:

aeadtest
chachatest
ssltest
tlstest

336

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