From 9bf52909df4d1e270db6511a54102ccc715e8ef1 Mon Sep 17 00:00:00 2001 From: MITSUNARI Shigeo Date: Sat, 15 Dec 2018 11:32:35 +0900 Subject: [PATCH] add description of hashAndMapToGi --- readme.md | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/readme.md b/readme.md index 9a14d38..1713412 100644 --- a/readme.md +++ b/readme.md @@ -233,13 +233,16 @@ bn384.hpp |BN381_1, BLS12_381, BN254| 48 | 48 | * Define `MCLBN_FR_UNIT_SIZE` and `MCLBN_FP_UNIT_SIZE` and include bn.h * set `MCLBN_FR_UNIT_SIZE = MCLBN_FP_UNIT_SIZE` unless `MCLBN_FR_UNIT_SIZE` is defined + library |MCLBN_FR_UNIT_SIZE|MCLBN_FP_UNIT_SIZE| +------------------|------------------|------------------| | sizeof Fr | sizeof Fp | ------------------|------------------|------------------| libmclbn256.a | 4 | 4 | libmclbn384_256.a | 4 | 6 | libmclbn384.a | 6 | 6 | + * libmclbn*.a ; static C library * libmclbn*\_dy.so ; shared C library @@ -249,7 +252,7 @@ is defined as `MCLBN_FR_UNIT_SIZE * 10 + MCLBN_FP_UNIT_SIZE`. This parameter is used to make sure that the values are the same when the library is built and used. ### shared library name -If you want to remove `_dy` of so files, then `makeSHARE_BASENAME\_SUF=`. +If you want to remove `_dy` of so files, then `makeSHARE_BASENAME_SUF=`. # How to initialize pairing library Call `mcl::bn256::initPairing` before calling any operations. @@ -321,10 +324,14 @@ Use `Fp12::mulGeneric` for x in Fp12 - GT. ## Map To points -* mapToG1(G1& P, const Fp& x); +Use these functions to make a point of G1 and G2. + +* mapToG1(G1& P, const Fp& x); // assume x != 0 * mapToG2(G2& P, const Fp2& x); +* hashAndMapToG1(G1& P, const void *buf, size_t bufSize); // set P by the hash value of [buf, bufSize) +* hashAndMapToG2(G2& P, const void *buf, size_t bufSize); -These functions maps x into Gi according to [_Faster hashing to G2_]. +These functions maps x into Gi according to [\[_Faster hashing to G2_\]]. ## String format of G1 and G2 G1 and G2 have three elements of Fp (x, y, z) for Jacobi coordinate.