poly1305.c

Jenkins

poly1305.c

Absolute File Name:

/home/opencoverage/opencoverage/guest-scripts/openssh/src/poly1305.c

Line

Source

Count

void

poly1305_auth(unsigned char out[16], const unsigned char *m, size_t inlen, const unsigned char key[32]) {

uint32_t t0,t1,t2,t3;

uint32_t h0,h1,h2,h3,h4;

uint32_t r0,r1,r2,r3,r4;

uint32_t s1,s2,s3,s4;

uint32_t b, nb;

size_t j;

uint64_t t[5];

uint64_t f0,f1,f2,f3;

uint32_t g0,g1,g2,g3,g4;

uint64_t c;

unsigned char mp[16];

t0 = (((uint32_t)((key+0)[0])) | ((uint32_t)((key+0)[1]) << 8) | ((uint32_t)((key+0)[2]) << 16) | ((uint32_t)((key+0)[3]) << 24));

t1 = (((uint32_t)((key+4)[0])) | ((uint32_t)((key+4)[1]) << 8) | ((uint32_t)((key+4)[2]) << 16) | ((uint32_t)((key+4)[3]) << 24));

t2 = (((uint32_t)((key+8)[0])) | ((uint32_t)((key+8)[1]) << 8) | ((uint32_t)((key+8)[2]) << 16) | ((uint32_t)((key+8)[3]) << 24));

t3 = (((uint32_t)((key+12)[0])) | ((uint32_t)((key+12)[1]) << 8) | ((uint32_t)((key+12)[2]) << 16) | ((uint32_t)((key+12)[3]) << 24));

r0 = t0 & 0x3ffffff; t0 >>= 26; t0 |= t1 << 6;

r1 = t0 & 0x3ffff03; t1 >>= 20; t1 |= t2 << 12;

r2 = t1 & 0x3ffc0ff; t2 >>= 14; t2 |= t3 << 18;

r3 = t2 & 0x3f03fff; t3 >>= 8;

r4 = t3 & 0x00fffff;

s1 = r1 * 5;

s2 = r2 * 5;

s3 = r3 * 5;

s4 = r4 * 5;

h0 = 0;

h1 = 0;

h2 = 0;

h3 = 0;

h4 = 0;

if (inlen < 16

inlen < 16	Description
TRUE	evaluated 512 times by 1 test Evaluated by: test_kex
FALSE	evaluated 1152 times by 1 test Evaluated by: test_kex

) goto

executed 512 times by 1 test: goto poly1305_donna_atmost15bytes;

Executed by:

test_kex

poly1305_donna_atmost15bytes;

executed 512 times by 1 test: goto poly1305_donna_atmost15bytes;

Executed by:

test_kex

512-1152

poly1305_donna_16bytes:

code before this statement executed 1152 times by 1 test: poly1305_donna_16bytes:

Executed by:

test_kex

1152

m += 16;

inlen -= 16;

t0 = (((uint32_t)((m-16)[0])) | ((uint32_t)((m-16)[1]) << 8) | ((uint32_t)((m-16)[2]) << 16) | ((uint32_t)((m-16)[3]) << 24));

t1 = (((uint32_t)((m-12)[0])) | ((uint32_t)((m-12)[1]) << 8) | ((uint32_t)((m-12)[2]) << 16) | ((uint32_t)((m-12)[3]) << 24));

t2 = (((uint32_t)((m-8)[0])) | ((uint32_t)((m-8)[1]) << 8) | ((uint32_t)((m-8)[2]) << 16) | ((uint32_t)((m-8)[3]) << 24));

t3 = (((uint32_t)((m-4)[0])) | ((uint32_t)((m-4)[1]) << 8) | ((uint32_t)((m-4)[2]) << 16) | ((uint32_t)((m-4)[3]) << 24));

h0 += t0 & 0x3ffffff;

h1 += ((((uint64_t)t1 << 32) | t0) >> 26) & 0x3ffffff;

h2 += ((((uint64_t)t2 << 32) | t1) >> 20) & 0x3ffffff;

h3 += ((((uint64_t)t3 << 32) | t2) >> 14) & 0x3ffffff;

h4 += (t3 >> 8) | (1 << 24);

poly1305_donna_mul:

code before this statement executed 46460 times by 1 test: poly1305_donna_mul:

Executed by:

test_kex

46460

t[0] = ((uint64_t)(h0) * (r0)) + ((uint64_t)(h1) * (s4)) + ((uint64_t)(h2) * (s3)) + ((uint64_t)(h3) * (s2)) + ((uint64_t)(h4) * (s1));

t[1] = ((uint64_t)(h0) * (r1)) + ((uint64_t)(h1) * (r0)) + ((uint64_t)(h2) * (s4)) + ((uint64_t)(h3) * (s3)) + ((uint64_t)(h4) * (s2));

t[2] = ((uint64_t)(h0) * (r2)) + ((uint64_t)(h1) * (r1)) + ((uint64_t)(h2) * (r0)) + ((uint64_t)(h3) * (s4)) + ((uint64_t)(h4) * (s3));

t[3] = ((uint64_t)(h0) * (r3)) + ((uint64_t)(h1) * (r2)) + ((uint64_t)(h2) * (r1)) + ((uint64_t)(h3) * (r0)) + ((uint64_t)(h4) * (s4));

t[4] = ((uint64_t)(h0) * (r4)) + ((uint64_t)(h1) * (r3)) + ((uint64_t)(h2) * (r2)) + ((uint64_t)(h3) * (r1)) + ((uint64_t)(h4) * (r0));

h0 = (uint32_t)t[0] & 0x3ffffff; c = (t[0] >> 26);

t[1] += c; h1 = (uint32_t)t[1] & 0x3ffffff; b = (uint32_t)(t[1] >> 26);

t[2] += b; h2 = (uint32_t)t[2] & 0x3ffffff; b = (uint32_t)(t[2] >> 26);

t[3] += b; h3 = (uint32_t)t[3] & 0x3ffffff; b = (uint32_t)(t[3] >> 26);

t[4] += b; h4 = (uint32_t)t[4] & 0x3ffffff; b = (uint32_t)(t[4] >> 26);

h0 += b * 5;

if (inlen >= 16

inlen >= 16	Description
TRUE	evaluated 45308 times by 1 test Evaluated by: test_kex
FALSE	evaluated 2816 times by 1 test Evaluated by: test_kex

) goto

executed 45308 times by 1 test: goto poly1305_donna_16bytes;

Executed by:

test_kex

poly1305_donna_16bytes;

executed 45308 times by 1 test: goto poly1305_donna_16bytes;

Executed by:

test_kex

2816-45308

poly1305_donna_atmost15bytes:

code before this statement executed 2816 times by 1 test: poly1305_donna_atmost15bytes:

Executed by:

test_kex

2816

if (!inlen

!inlen	Description
TRUE	evaluated 1664 times by 1 test Evaluated by: test_kex
FALSE	evaluated 1664 times by 1 test Evaluated by: test_kex

) goto

executed 1664 times by 1 test: goto poly1305_donna_finish;

Executed by:

test_kex

poly1305_donna_finish;

executed 1664 times by 1 test: goto poly1305_donna_finish;

Executed by:

test_kex

1664

for (j = 0; j < inlen

j < inlen	Description
TRUE	evaluated 14304 times by 1 test Evaluated by: test_kex
FALSE	evaluated 1664 times by 1 test Evaluated by: test_kex

; j++) mp[j] = m[j];

executed 14304 times by 1 test: mp[j] = m[j];

Executed by:

test_kex

1664-14304

mp[j++] = 1;

for (; j < 16

j < 16	Description
TRUE	evaluated 10656 times by 1 test Evaluated by: test_kex
FALSE	evaluated 1664 times by 1 test Evaluated by: test_kex

; j++) mp[j] = 0;

executed 10656 times by 1 test: mp[j] = 0;

Executed by:

test_kex

1664-10656

inlen = 0;

t0 = (((uint32_t)((mp+0)[0])) | ((uint32_t)((mp+0)[1]) << 8) | ((uint32_t)((mp+0)[2]) << 16) | ((uint32_t)((mp+0)[3]) << 24));

t1 = (((uint32_t)((mp+4)[0])) | ((uint32_t)((mp+4)[1]) << 8) | ((uint32_t)((mp+4)[2]) << 16) | ((uint32_t)((mp+4)[3]) << 24));

t2 = (((uint32_t)((mp+8)[0])) | ((uint32_t)((mp+8)[1]) << 8) | ((uint32_t)((mp+8)[2]) << 16) | ((uint32_t)((mp+8)[3]) << 24));

t3 = (((uint32_t)((mp+12)[0])) | ((uint32_t)((mp+12)[1]) << 8) | ((uint32_t)((mp+12)[2]) << 16) | ((uint32_t)((mp+12)[3]) << 24));

100

101

h0 += t0 & 0x3ffffff;

102

h1 += ((((uint64_t)t1 << 32) | t0) >> 26) & 0x3ffffff;

103

h2 += ((((uint64_t)t2 << 32) | t1) >> 20) & 0x3ffffff;

104

h3 += ((((uint64_t)t3 << 32) | t2) >> 14) & 0x3ffffff;

105

h4 += (t3 >> 8);

106

107

goto

executed 1664 times by 1 test: goto poly1305_donna_mul;

Executed by:

test_kex

poly1305_donna_mul;

executed 1664 times by 1 test: goto poly1305_donna_mul;

Executed by:

test_kex

1664

108

109

poly1305_donna_finish:

110

b = h0 >> 26; h0 = h0 & 0x3ffffff;

111

h1 += b; b = h1 >> 26; h1 = h1 & 0x3ffffff;

112

h2 += b; b = h2 >> 26; h2 = h2 & 0x3ffffff;

113

h3 += b; b = h3 >> 26; h3 = h3 & 0x3ffffff;

114

h4 += b; b = h4 >> 26; h4 = h4 & 0x3ffffff;

115

h0 += b * 5; b = h0 >> 26; h0 = h0 & 0x3ffffff;

116

h1 += b;

117

118

g0 = h0 + 5; b = g0 >> 26; g0 &= 0x3ffffff;

119

g1 = h1 + b; b = g1 >> 26; g1 &= 0x3ffffff;

120

g2 = h2 + b; b = g2 >> 26; g2 &= 0x3ffffff;

121

g3 = h3 + b; b = g3 >> 26; g3 &= 0x3ffffff;

122

g4 = h4 + b - (1 << 26);

b = (g4 >> 31) - 1;

nb = ~b;

h0 = (h0 & nb) | (g0 & b);

127

h1 = (h1 & nb) | (g1 & b);

128

h2 = (h2 & nb) | (g2 & b);

129

h3 = (h3 & nb) | (g3 & b);

130

h4 = (h4 & nb) | (g4 & b);

131

132

f0 = ((h0 ) | (h1 << 26)) + (uint64_t)(((uint32_t)((&key[16])[0])) | ((uint32_t)((&key[16])[1]) << 8) | ((uint32_t)((&key[16])[2]) << 16) | ((uint32_t)((&key[16])[3]) << 24));

133

f1 = ((h1 >> 6) | (h2 << 20)) + (uint64_t)(((uint32_t)((&key[20])[0])) | ((uint32_t)((&key[20])[1]) << 8) | ((uint32_t)((&key[20])[2]) << 16) | ((uint32_t)((&key[20])[3]) << 24));

134

f2 = ((h2 >> 12) | (h3 << 14)) + (uint64_t)(((uint32_t)((&key[24])[0])) | ((uint32_t)((&key[24])[1]) << 8) | ((uint32_t)((&key[24])[2]) << 16) | ((uint32_t)((&key[24])[3]) << 24));

135

f3 = ((h3 >> 18) | (h4 << 8)) + (uint64_t)(((uint32_t)((&key[28])[0])) | ((uint32_t)((&key[28])[1]) << 8) | ((uint32_t)((&key[28])[2]) << 16) | ((uint32_t)((&key[28])[3]) << 24));

136

137

do { (&out[ 0])[0] = (uint8_t)((f0)); (&out[ 0])[1] = (uint8_t)((f0) >> 8); (&out[ 0])[2] = (uint8_t)((f0) >> 16); (&out[ 0])[3] = (uint8_t)((f0) >> 24); } while (0); f1 += (f0 >> 32);

138

do { (&out[ 4])[0] = (uint8_t)((f1)); (&out[ 4])[1] = (uint8_t)((f1) >> 8); (&out[ 4])[2] = (uint8_t)((f1) >> 16); (&out[ 4])[3] = (uint8_t)((f1) >> 24); } while (0); f2 += (f1 >> 32);

139

do { (&out[ 8])[0] = (uint8_t)((f2)); (&out[ 8])[1] = (uint8_t)((f2) >> 8); (&out[ 8])[2] = (uint8_t)((f2) >> 16); (&out[ 8])[3] = (uint8_t)((f2) >> 24); } while (0); f3 += (f2 >> 32);

140

do { (&out[12])[0] = (uint8_t)((f3)); (&out[12])[1] = (uint8_t)((f3) >> 8); (&out[12])[2] = (uint8_t)((f3) >> 16); (&out[12])[3] = (uint8_t)((f3) >> 24); } while (0);

141

}

executed 1664 times by 1 test: end of block

Executed by:

test_kex

1664

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