status-im/c-kzg-4844
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Probably need to bytes48 from g1 in the interface

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Ramana Kumar 2022-10-01 11:50:21 +01:00
parent be3f0c22cf
commit 9897fb2fa9
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3 changed files with 10 additions and 0 deletions
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1
min-bindings/c_kzg_4844.swg
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@ -71,6 +71,7 @@
#endif #endif
%array_class(scalar_t, scalars) %array_class(scalar_t, scalars)
%array_class(uint8_t, bytes)
%array_class(BLSFieldElement, BLSFieldElements) %array_class(BLSFieldElement, BLSFieldElements)
%pointer_class(PolynomialEvalForm, PolynomialEvalFormPtr) %pointer_class(PolynomialEvalForm, PolynomialEvalFormPtr)

4
min-src/c_kzg_4844.c
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@ -753,6 +753,10 @@ static bool pairings_verify(const g1_t *a1, const g2_t *a2, const g1_t *b1, cons
} }
void Bytes48_from_G1(uint8_t out[48], const g1_t *in) {
blst_p1_compress(out, in);
}
void BLSFieldElement_from_uint64s(BLSFieldElement *out, const uint64_t in[4]) { void BLSFieldElement_from_uint64s(BLSFieldElement *out, const uint64_t in[4]) {
blst_fr_from_uint64(out, in); blst_fr_from_uint64(out, in);
} }

5
min-src/c_kzg_4844.h
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@ -38,6 +38,11 @@ typedef g1_t KZGCommitment;
typedef g1_t KZGProof; typedef g1_t KZGProof;
typedef fr_t BLSFieldElement; typedef fr_t BLSFieldElement;
/**
* KZGCommitment and KZGProof can be recovered as 48 bytes
*/
void Bytes48_from_G1(uint8_t out[48], const g1_t*);
/** /**
* 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