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author | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-11-22 21:52:25 +0800 |
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committer | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-12-03 18:31:53 +0800 |
commit | 4668b0732ce4b62b3b7d19ea4e155a6d3c4e6004 (patch) | |
tree | 43cad9046ecc4c9e59e9d9743c6f076878881037 /contracts/core/test/utils/signing_utils.ts | |
parent | 502e9c7be48caafd7725451789f896efdaf17dac (diff) | |
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Move packages/contracts to contracts/core
Diffstat (limited to 'contracts/core/test/utils/signing_utils.ts')
-rw-r--r-- | contracts/core/test/utils/signing_utils.ts | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/contracts/core/test/utils/signing_utils.ts b/contracts/core/test/utils/signing_utils.ts new file mode 100644 index 000000000..21f864bfa --- /dev/null +++ b/contracts/core/test/utils/signing_utils.ts @@ -0,0 +1,29 @@ +import { SignatureType } from '@0x/types'; +import * as ethUtil from 'ethereumjs-util'; + +export const signingUtils = { + signMessage(message: Buffer, privateKey: Buffer, signatureType: SignatureType): Buffer { + if (signatureType === SignatureType.EthSign) { + const prefixedMessage = ethUtil.hashPersonalMessage(message); + const ecSignature = ethUtil.ecsign(prefixedMessage, privateKey); + const signature = Buffer.concat([ + ethUtil.toBuffer(ecSignature.v), + ecSignature.r, + ecSignature.s, + ethUtil.toBuffer(signatureType), + ]); + return signature; + } else if (signatureType === SignatureType.EIP712) { + const ecSignature = ethUtil.ecsign(message, privateKey); + const signature = Buffer.concat([ + ethUtil.toBuffer(ecSignature.v), + ecSignature.r, + ecSignature.s, + ethUtil.toBuffer(signatureType), + ]); + return signature; + } else { + throw new Error(`${signatureType} is not a valid signature type`); + } + }, +}; |