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;
-    },
-};