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BLS multiplication precompiles interoperability #1042

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BLS multiplication precompiles interoperability #1042

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20 changes: 18 additions & 2 deletions test/state/precompiles.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -428,7 +428,8 @@ ExecutionResult bls12_g1mul_execute(const uint8_t* input, size_t input_size, uin

assert(output_size == 128);

if (!crypto::bls::g1_mul(output, &output[64], input, &input[64], &input[128]))
// Pass the input to MSM for cross-check. They are ABI equivalent.
if (!crypto::bls::g1_msm(output, &output[64], input, input_size))
return {EVMC_PRECOMPILE_FAILURE, 0};

return {EVMC_SUCCESS, 128};
Expand All @@ -442,6 +443,13 @@ ExecutionResult bls12_g1msm_execute(const uint8_t* input, size_t input_size, uin

assert(output_size == 128);

// For single input pass it to the simpler single-point multiplication.
if (input_size == 160)
{
if (!crypto::bls::g1_mul(output, &output[64], input, &input[64], &input[128]))
return {EVMC_PRECOMPILE_FAILURE, 0};
}

if (!crypto::bls::g1_msm(output, &output[64], input, input_size))
return {EVMC_PRECOMPILE_FAILURE, 0};

Expand Down Expand Up @@ -470,7 +478,8 @@ ExecutionResult bls12_g2mul_execute(const uint8_t* input, size_t input_size, uin

assert(output_size == 256);

if (!crypto::bls::g2_mul(output, &output[128], input, &input[128], &input[256]))
// Pass the input to MSM for cross-check. They are ABI equivalent.
if (!crypto::bls::g2_msm(output, &output[128], input, input_size))
return {EVMC_PRECOMPILE_FAILURE, 0};

return {EVMC_SUCCESS, 256};
Expand All @@ -484,6 +493,13 @@ ExecutionResult bls12_g2msm_execute(const uint8_t* input, size_t input_size, uin

assert(output_size == 256);

// For single input pass it to the simpler single-point multiplication.
if (input_size == 288)
{
if (!crypto::bls::g2_mul(output, &output[128], input, &input[128], &input[256]))
return {EVMC_PRECOMPILE_FAILURE, 0};
}

if (!crypto::bls::g2_msm(output, &output[128], input, input_size))
return {EVMC_PRECOMPILE_FAILURE, 0};

Expand Down