diff options
| -rw-r--r-- | networking/tls_sp_c32.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/networking/tls_sp_c32.c b/networking/tls_sp_c32.c index 73dae6c..353dacd 100644 --- a/networking/tls_sp_c32.c +++ b/networking/tls_sp_c32.c @@ -70,6 +70,16 @@ static const sp_digit p256_mod[10] = { #define p256_mp_mod ((sp_digit)0x000001) +/* Normalize the values in each word to 26 bits. */ +static void sp_256_norm_10(sp_digit* a) +{ + int i; + for (i = 0; i < 9; i++) { + a[i+1] += a[i] >> 26; + a[i] &= 0x3ffffff; + } +} + /* Write r as big endian to byte aray. * Fixed length number of bytes written: 32 * @@ -80,10 +90,8 @@ static void sp_256_to_bin(sp_digit* r, uint8_t* a) { int i, j, s = 0, b; - for (i = 0; i < 9; i++) { - r[i+1] += r[i] >> 26; - r[i] &= 0x3ffffff; - } + sp_256_norm_10(r); + j = 256 / 8 - 1; a[j] = 0; for (i = 0; i < 10 && j >= 0; i++) { @@ -171,16 +179,6 @@ static int sp_256_cmp_equal_10(const sp_digit* a, const sp_digit* b) return sp_256_cmp_10(a, b) == 0; } -/* Normalize the values in each word to 26 bits. */ -static void sp_256_norm_10(sp_digit* a) -{ - int i; - for (i = 0; i < 9; i++) { - a[i+1] += a[i] >> 26; - a[i] &= 0x3ffffff; - } -} - /* Add b to a into r. (r = a + b) */ static void sp_256_add_10(sp_digit* r, const sp_digit* a, const sp_digit* b) { |