59 lines
1.1 KiB
Nim
59 lines
1.1 KiB
Nim
import pkg/stint
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import pkg/circomcompat
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# import pkg/serde/json
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import std/json
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export stint, json
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type
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CircomG1* = G1
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CircomG2* = G2
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CircomProof* = Proof
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CircomKey* = VerifyingKey
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CircomInputs* = Inputs
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type
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Groth16Proof* = object
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a*: G1Point
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b*: G2Point
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c*: G1Point
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G1Point* = object
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x*: UInt256
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y*: UInt256
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# A field element F_{p^2} encoded as `real + i * imag`
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Fp2Element* = object
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real*: UInt256
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imag*: UInt256
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G2Point* = object
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x*: Fp2Element
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y*: Fp2Element
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func `%`*(integer: UInt256): JsonNode =
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%($(integer))
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func toG1*(g: CircomG1): G1Point =
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G1Point(
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x: UInt256.fromBytesLE(g.x),
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y: UInt256.fromBytesLE(g.y))
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func toG2*(g: CircomG2): G2Point =
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G2Point(
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x: Fp2Element(
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real: UInt256.fromBytesLE(g.x[0]),
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imag: UInt256.fromBytesLE(g.x[1])
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),
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y: Fp2Element(
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real: UInt256.fromBytesLE(g.y[0]),
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imag: UInt256.fromBytesLE(g.y[1])
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))
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func toGroth16Proof*(proof: CircomProof): Groth16Proof =
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Groth16Proof(
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a: proof.a.toG1,
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b: proof.b.toG2,
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c: proof.c.toG1)
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proc parseBigInt*(input: JsonNode): UInt256 =
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parse( input.str, UInt256 )
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