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c-kzg-4844
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Add bytes_from_bls_field to interface

This commit is contained in:
Ramana Kumar 2022-10-07 00:28:20 +01:00
parent d453296005
commit 6083d09d29
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2 changed files with 5 additions and 1 deletions
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3
min-src/c_kzg_4844.c
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@ -769,6 +769,9 @@ void uint64s_from_BLSFieldElement(uint64_t out[4], const BLSFieldElement *in) {
blst_uint64_from_fr(out, in); blst_uint64_from_fr(out, in);
} }
void bytes_from_bls_field(uint8_t out[32], const BLSFieldElement *in) {
blst_scalar_from_fr((blst_scalar*)out, in);
}
C_KZG_RET load_trusted_setup(KZGSettings *out, FILE *in) { C_KZG_RET load_trusted_setup(KZGSettings *out, FILE *in) {
uint64_t n2, i; uint64_t n2, i;

3
min-src/c_kzg_4844.h
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@ -61,10 +61,11 @@ C_KZG_RET bytes_to_g1(g1_t* out, const uint8_t[48]);
* BLSFieldElements are communicated directly to/from clients, * BLSFieldElements are communicated directly to/from clients,
* so we need to expose the functions for translating between this * so we need to expose the functions for translating between this
* type and uint256. BLST represents uint256 as uint64[4]. * type and uint256. BLST represents uint256 as uint64[4].
* TODO: we should perhaps just used bytes[32] for this too. * TODO: remove the uint64s version?
* For conversion to BLSFieldElement use bytes_to_bls_field. * For conversion to BLSFieldElement use bytes_to_bls_field.
*/ */
void uint64s_from_BLSFieldElement(uint64_t out[4], const BLSFieldElement*); void uint64s_from_BLSFieldElement(uint64_t out[4], const BLSFieldElement*);
void bytes_from_bls_field(uint8_t out[32], const BLSFieldElement*);
/** /**
* Stores the setup and parameters needed for performing FFTs. * Stores the setup and parameters needed for performing FFTs.