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-rw-r--r--packages/contracts/src/utils/crypto.ts45
1 files changed, 0 insertions, 45 deletions
diff --git a/packages/contracts/src/utils/crypto.ts b/packages/contracts/src/utils/crypto.ts
deleted file mode 100644
index 80c5f30a5..000000000
--- a/packages/contracts/src/utils/crypto.ts
+++ /dev/null
@@ -1,45 +0,0 @@
-import BN = require('bn.js');
-import ABI = require('ethereumjs-abi');
-import ethUtil = require('ethereumjs-util');
-import * as _ from 'lodash';
-
-export const crypto = {
- /**
- * We convert types from JS to Solidity as follows:
- * BigNumber -> uint256
- * number -> uint8
- * string -> string
- * boolean -> bool
- * valid Ethereum address -> address
- */
- solSHA3(args: any[]): Buffer {
- return crypto._solHash(args, ABI.soliditySHA3);
- },
- solSHA256(args: any[]): Buffer {
- return crypto._solHash(args, ABI.soliditySHA256);
- },
- _solHash(args: any[], hashFunction: (types: string[], values: any[]) => Buffer): Buffer {
- const argTypes: string[] = [];
- _.each(args, (arg, i) => {
- const isNumber = _.isFinite(arg);
- if (isNumber) {
- argTypes.push('uint8');
- } else if (arg.isBigNumber) {
- argTypes.push('uint256');
- args[i] = new BN(arg.toString(10), 10);
- } else if (ethUtil.isValidAddress(arg)) {
- argTypes.push('address');
- } else if (_.isString(arg)) {
- argTypes.push('string');
- } else if (_.isBuffer(arg)) {
- argTypes.push('bytes');
- } else if (_.isBoolean(arg)) {
- argTypes.push('bool');
- } else {
- throw new Error(`Unable to guess arg type: ${arg}`);
- }
- });
- const hash = hashFunction(argTypes, args);
- return hash;
- },
-};