Page MenuHomeFreeBSD
Differential D29517 Diff 86628 sys/crypto/openssl/ossl_chacha20.c

Changeset View

Standalone View

View Options

sys/crypto/openssl/ossl_chacha20.c

Show First 20 Lines • Show All 82 Lines • ▼ Show 20 Lines if (inlen < CHACHA_BLK_SIZE) {
in = inseg; in = inseg;
if (outlen < CHACHA_BLK_SIZE) { if (outlen < CHACHA_BLK_SIZE) {
out = block; out = block;
outlen = CHACHA_BLK_SIZE; outlen = CHACHA_BLK_SIZE;
} else } else
out = outseg; out = outseg;
/* Figure out how many blocks we can encrypt/decrypt at once. */ /* Figure out how many blocks we can encrypt/decrypt at once. */
todo = rounddown(MIN(inlen, outlen), CHACHA_BLK_SIZE); todo = rounddown(MIN(resid, MIN(inlen, outlen)),
CHACHA_BLK_SIZE);
#ifdef __LP64__ #ifdef __LP64__
/* ChaCha20_ctr32() assumes length is <= 4GB. */ /* ChaCha20_ctr32() assumes length is <= 4GB. */
todo = (uint32_t)todo; todo = (uint32_t)todo;
#endif #endif
/* Truncate if the 32-bit counter would roll over. */ /* Truncate if the 32-bit counter would roll over. */
next_counter = counter[0] + todo / CHACHA_BLK_SIZE; next_counter = counter[0] + todo / CHACHA_BLK_SIZE;
▲ Show 20 Lines • Show All 113 Lines • ▼ Show 20 Lines if (inlen < CHACHA_BLK_SIZE) {
in = inseg; in = inseg;
if (outlen < CHACHA_BLK_SIZE) { if (outlen < CHACHA_BLK_SIZE) {
out = block; out = block;
outlen = CHACHA_BLK_SIZE; outlen = CHACHA_BLK_SIZE;
} else } else
out = outseg; out = outseg;
/* Figure out how many blocks we can encrypt/decrypt at once. */ /* Figure out how many blocks we can encrypt/decrypt at once. */
todo = rounddown(MIN(inlen, outlen), CHACHA_BLK_SIZE); todo = rounddown(MIN(resid, MIN(inlen, outlen)),
CHACHA_BLK_SIZE);
#ifdef __LP64__ #ifdef __LP64__
/* ChaCha20_ctr32() assumes length is <= 4GB. */ /* ChaCha20_ctr32() assumes length is <= 4GB. */
todo = (uint32_t)todo; todo = (uint32_t)todo;
#endif #endif
/* Truncate if the 32-bit counter would roll over. */ /* Truncate if the 32-bit counter would roll over. */
next_counter = counter[0] + todo / CHACHA_BLK_SIZE; next_counter = counter[0] + todo / CHACHA_BLK_SIZE;
▲ Show 20 Lines • Show All 154 Lines • ▼ Show 20 Lines if (inlen < CHACHA_BLK_SIZE) {
in = inseg; in = inseg;
if (outlen < CHACHA_BLK_SIZE) { if (outlen < CHACHA_BLK_SIZE) {
out = block; out = block;
outlen = CHACHA_BLK_SIZE; outlen = CHACHA_BLK_SIZE;
} else } else
out = outseg; out = outseg;
/* Figure out how many blocks we can encrypt/decrypt at once. */ /* Figure out how many blocks we can encrypt/decrypt at once. */
todo = rounddown(MIN(inlen, outlen), CHACHA_BLK_SIZE); todo = rounddown(MIN(resid, MIN(inlen, outlen)),
CHACHA_BLK_SIZE);
#ifdef __LP64__ #ifdef __LP64__
/* ChaCha20_ctr32() assumes length is <= 4GB. */ /* ChaCha20_ctr32() assumes length is <= 4GB. */
todo = (uint32_t)todo; todo = (uint32_t)todo;
#endif #endif
/* Truncate if the 32-bit counter would roll over. */ /* Truncate if the 32-bit counter would roll over. */
next_counter = counter[0] + todo / CHACHA_BLK_SIZE; next_counter = counter[0] + todo / CHACHA_BLK_SIZE;
▲ Show 20 Lines • Show All 47 Lines • Show Last 20 Lines