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author | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-07-05 21:04:01 +0800 |
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committer | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-07-05 21:04:01 +0800 |
commit | 1ee2d6ed54b6159d1e8952692f4ddba0ebd65012 (patch) | |
tree | 1cebf47acf4fff2352a709035c141ec7ffdb8353 /packages/contracts/test/utils/signing_utils.ts | |
parent | 1eba78e20ac468d3b4d6ebe8fd91eb5277577e0a (diff) | |
parent | 5176d929fa6d3c6ce414448ea2441bd450f04e3c (diff) | |
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Merge branch 'v2-prototype' into v2-contract-wrappers-WIP
Diffstat (limited to 'packages/contracts/test/utils/signing_utils.ts')
-rw-r--r-- | packages/contracts/test/utils/signing_utils.ts | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/packages/contracts/test/utils/signing_utils.ts b/packages/contracts/test/utils/signing_utils.ts new file mode 100644 index 000000000..9c711c72c --- /dev/null +++ b/packages/contracts/test/utils/signing_utils.ts @@ -0,0 +1,29 @@ +import { SignatureType } from '@0xproject/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`); + } + }, +}; |