diff options
Diffstat (limited to 'src/crypto/chacha/chacha.c')
| -rw-r--r-- | src/crypto/chacha/chacha.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/crypto/chacha/chacha.c b/src/crypto/chacha/chacha.c index fe32596a..646ef7a6 100644 --- a/src/crypto/chacha/chacha.c +++ b/src/crypto/chacha/chacha.c @@ -12,7 +12,7 @@ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ -/* Adapted from the public domain, estream code by D. Bernstein. */ +// Adapted from the public domain, estream code by D. Bernstein. #include <openssl/chacha.h> @@ -32,7 +32,7 @@ (defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || \ defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)) -/* ChaCha20_ctr32 is defined in asm/chacha-*.pl. */ +// ChaCha20_ctr32 is defined in asm/chacha-*.pl. void ChaCha20_ctr32(uint8_t *out, const uint8_t *in, size_t in_len, const uint32_t key[8], const uint32_t counter[4]); @@ -48,7 +48,7 @@ void CRYPTO_chacha_20(uint8_t *out, const uint8_t *in, size_t in_len, const uint32_t *key_ptr = (const uint32_t *)key; #if !defined(OPENSSL_X86) && !defined(OPENSSL_X86_64) - /* The assembly expects the key to be four-byte aligned. */ + // The assembly expects the key to be four-byte aligned. uint32_t key_u32[8]; if ((((uintptr_t)key) & 3) != 0) { key_u32[0] = U8TO32_LITTLE(key + 0); @@ -69,7 +69,7 @@ void CRYPTO_chacha_20(uint8_t *out, const uint8_t *in, size_t in_len, #else -/* sigma contains the ChaCha constants, which happen to be an ASCII string. */ +// sigma contains the ChaCha constants, which happen to be an ASCII string. static const uint8_t sigma[16] = { 'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k' }; @@ -83,15 +83,15 @@ static const uint8_t sigma[16] = { 'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', (p)[3] = (v >> 24) & 0xff; \ } -/* QUARTERROUND updates a, b, c, d with a ChaCha "quarter" round. */ +// QUARTERROUND updates a, b, c, d with a ChaCha "quarter" round. #define QUARTERROUND(a, b, c, d) \ x[a] += x[b]; x[d] = ROTATE(x[d] ^ x[a], 16); \ x[c] += x[d]; x[b] = ROTATE(x[b] ^ x[c], 12); \ x[a] += x[b]; x[d] = ROTATE(x[d] ^ x[a], 8); \ x[c] += x[d]; x[b] = ROTATE(x[b] ^ x[c], 7); -/* chacha_core performs 20 rounds of ChaCha on the input words in - * |input| and writes the 64 output bytes to |output|. */ +// chacha_core performs 20 rounds of ChaCha on the input words in +// |input| and writes the 64 output bytes to |output|. static void chacha_core(uint8_t output[64], const uint32_t input[16]) { uint32_t x[16]; int i; |