frost/secp256k1-zkp
3
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Generalize secp256k1_scalar_get_bits

Browse Source
This commit is contained in:
Pieter Wuille
2014-11-25 15:55:21 +01:00
parent 5213207856
commit 1e6c77c321
4 changed files with 85 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/scalar.h
View File

@@ -24,12 +24,18 @@
/** Clear a scalar to prevent the leak of sensitive data. */
static void secp256k1_scalar_clear(secp256k1_scalar_t *r);
/** Access bits from a scalar. */
static int secp256k1_scalar_get_bits(const secp256k1_scalar_t *a, int offset, int count);
/** Access bits from a scalar. All requested bits must belong to the same 32-bit limb. */
static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar_t *a, unsigned int offset, unsigned int count);
/** Access bits from a scalar. Not constant time. */
static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar_t *a, unsigned int offset, unsigned int count);
/** Set a scalar from a big endian byte array. */
static void secp256k1_scalar_set_b32(secp256k1_scalar_t *r, const unsigned char *bin, int *overflow);
/** Set a scalar to an unsigned integer. */
static void secp256k1_scalar_set_int(secp256k1_scalar_t *r, unsigned int v);
/** Convert a scalar to a byte array. */
static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar_t* a);