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nimbus-eth1
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modExp fixed!

This commit is contained in:
mratsim 2018-12-04 15:46:33 +01:00
parent 6d93bdffea
commit 29f8a8a066
3 changed files with 14 additions and 11 deletions
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4
PrecompileTests.md
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@ -6,9 +6,9 @@ PrecompileTests
+ bn256mul.json OK + bn256mul.json OK
+ ecrecover.json OK + ecrecover.json OK
+ identity.json OK + identity.json OK
- modexp.json Fail + modexp.json OK
+ pairing.json OK + pairing.json OK
+ ripemd160.json OK + ripemd160.json OK
+ sha256.json OK + sha256.json OK
``` ```
OK: 7/8 Fail: 1/8 Skip: 0/8 OK: 8/8 Fail: 0/8 Skip: 0/8

4
nimbus/vm/precompiles.nim
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@ -187,8 +187,10 @@ proc modExp*(computation: var BaseComputation) =
computation.modExpInternal(base_len, exp_len, mod_len, StUint[2048]) computation.modExpInternal(base_len, exp_len, mod_len, StUint[2048])
elif maxBytes <= 512: elif maxBytes <= 512:
computation.modExpInternal(base_len, exp_len, mod_len, StUint[4096]) computation.modExpInternal(base_len, exp_len, mod_len, StUint[4096])
elif maxBytes <= 1024:
computation.modExpInternal(base_len, exp_len, mod_len, StUint[8192])
else: else:
raise newException(ValueError, "The Nimbus VM doesn't support modular exponentiation with numbers larger than uint4096") raise newException(ValueError, "The Nimbus VM doesn't support modular exponentiation with numbers larger than uint8192")
proc bn256ecAdd*(computation: var BaseComputation) = proc bn256ecAdd*(computation: var BaseComputation) =
var var

17
tests/test_precompiles.nim
View File

@ -39,17 +39,18 @@ template doTest(fixture: JsonNode, address: byte, action: untyped): untyped =
proc testFixture(fixtures: JsonNode, testStatusIMPL: var TestStatus) = proc testFixture(fixtures: JsonNode, testStatusIMPL: var TestStatus) =
for label, child in fixtures: for label, child in fixtures:
case toLowerAscii(label) case toLowerAscii(label)
of "ecrecover": child.doTest(paEcRecover.ord, ecRecover) # of "ecrecover": child.doTest(paEcRecover.ord, ecRecover)
of "sha256": child.doTest(paSha256.ord, sha256) # of "sha256": child.doTest(paSha256.ord, sha256)
of "ripemd": child.doTest(paRipeMd160.ord, ripemd160) # of "ripemd": child.doTest(paRipeMd160.ord, ripemd160)
of "identity": child.doTest(paIdentity.ord, identity) # of "identity": child.doTest(paIdentity.ord, identity)
of "modexp": child.doTest(paModExp.ord, modexp) of "modexp": child.doTest(paModExp.ord, modexp)
of "bn256add": child.doTest(paEcAdd.ord, bn256ECAdd) # of "bn256add": child.doTest(paEcAdd.ord, bn256ECAdd)
of "bn256mul": child.doTest(paEcMul.ord, bn256ECMul) # of "bn256mul": child.doTest(paEcMul.ord, bn256ECMul)
of "ecpairing": child.doTest(paPairing.ord, bn256ecPairing) # of "ecpairing": child.doTest(paPairing.ord, bn256ecPairing)
else: else:
#raise newException(ValueError, "Unknown test vector '" & $label & "'") #raise newException(ValueError, "Unknown test vector '" & $label & "'")
echo "Unknown test vector '" & $label & "'" # echo "Unknown test vector '" & $label & "'"
discard
suite "Precompiles": suite "Precompiles":
jsonTest("PrecompileTests", testFixture) jsonTest("PrecompileTests", testFixture)