Documentation
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Overview ¶
Package bn256 implements a particular bilinear group.
Bilinear groups are the basis of many of the new cryptographic protocols that have been proposed over the past decade. They consist of a triplet of groups (G₁, G₂ and GT) such that there exists a function e(g₁ˣ,g₂ʸ)=gTˣʸ (where gₓ is a generator of the respective group). That function is called a pairing function.
This package specifically implements the Optimal Ate pairing over a 256-bit Barreto-Naehrig curve as described in http://cryptojedi.org/papers/dclxvi-20100714.pdf. Its output is compatible with the implementation described in that paper.
This package previously claimed to operate at a 128-bit security level. However, recent improvements in attacks mean that it is no longer true. See https://moderncrypto.org/mail-archive/curves/2016/000740.html.
Initial package from Google is deprecated due to its weakened security and Klaytn is using the more complete implementation from Cloudflare ¶
Source Files ¶
Each file contains following contents
- bn256_fast.go : Provides PairingCheck function for amd64 and arm64 architecture
- bn256_fuzz.go : Provides functions to check if Google's library and Cloudflare's library are giving the same results
- bn256_slow.go : Provides PairingCheck function for non-amd64 and non-arm64 architecture
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func PairingCheck ¶
PairingCheck calculates the Optimal Ate pairing for a set of points.
Types ¶
Source Files
Directories
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| Path | Synopsis |
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Package bn256 implements a particular bilinear group at the 128-bit security level.
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Package bn256 implements a particular bilinear group at the 128-bit security level. |
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Package bn256 implements a particular bilinear group at the 128-bit security level.
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Package bn256 implements a particular bilinear group at the 128-bit security level. |