use sha256 instead of md5

Author: ryndaniels

.travis.yml

@@ -72,7 +72,7 @@ catch (err) { key = JSON.parse(key); }
 s3url.Key = [
     s3url.Key,
     table,
-    crypto.createHash('md5')
+    crypto.createHash('sha256')
         .update(Dyno.serialize(key))
         .digest('hex')
 ].join('/');

bin/incremental-diff-record.js

@@ -70,7 +70,7 @@ catch (err) { key = JSON.parse(key); }
 s3url.Key = [
     s3url.Key,
     table,
-    crypto.createHash('md5')
+    crypto.createHash('sha256')
         .update(Dyno.serialize(key))
         .digest('hex')
 ].join('/');

bin/incremental-record-history.js

@@ -174,7 +174,7 @@ function incrementalBackup(event, context, callback) {
 
         changes.forEach(function(change) {
             q.defer(function(next) {
-                var id = crypto.createHash('md5')
+                var id = crypto.createHash('sha256')
                     .update(JSON.stringify(change.dynamodb.Keys))
                     .digest('hex');
 

index.js

@@ -1,6 +1,6 @@
 {
   "name": "@mapbox/dynamodb-replicator",
-  "version": "10.0.0",
+  "version": "10.1.0",
   "description": "",
   "main": "index.js",
   "scripts": {

package.json

@@ -53,7 +53,7 @@ function backfill(config, done) {
                 return key;
             }, {});
 
-            var id = crypto.createHash('md5')
+            var id = crypto.createHash('sha256')
                 .update(Dyno.serialize(key))
                 .digest('hex');
 

s3-backfill.js

@@ -43,7 +43,7 @@ dynamodb.test('backup: one segment', primaryItems, function(assert) {
         if (err) return assert.end();
 
         assert.equal(details.count, 3, 'reported 3 records');
-        assert.equal(details.size, 98, 'reported 98 bytes');
+        assert.equal(details.size, 101, 'reported 101 bytes');
 
         s3.getObject({
             Bucket: 'mapbox',

test/backup.test.js

@@ -52,7 +52,7 @@ dynamodb.test('[s3-backfill]', records, function(assert) {
         var q = queue(20);
 
         records.forEach(function(expected) {
-            var key = crypto.createHash('md5')
+            var key = crypto.createHash('sha256')
                 .update(Dyno.serialize({ id: expected.id }))
                 .digest('hex');
 

test/incremental.test.js

@@ -155,7 +155,7 @@ test('[incremental backup] insert', function(assert) {
 
     var event = require(path.join(events, 'insert.json'));
     var table = event.Records[0].eventSourceARN.split('/')[1];
-    var id = crypto.createHash('md5')
+    var id = crypto.createHash('sha256')
         .update(JSON.stringify(event.Records[0].dynamodb.Keys))
         .digest('hex');
 
@@ -182,7 +182,7 @@ test('[incremental backup] insert & modify', function(assert) {
 
     var event = require(path.join(events, 'insert-modify.json'));
     var table = event.Records[0].eventSourceARN.split('/')[1];
-    var id = crypto.createHash('md5')
+    var id = crypto.createHash('sha256')
         .update(JSON.stringify(event.Records[0].dynamodb.Keys))
         .digest('hex');
 
@@ -209,7 +209,7 @@ test('[incremental backup] insert, modify & delete', function(assert) {
 
     var event = require(path.join(events, 'insert-modify-delete.json'));
     var table = event.Records[0].eventSourceARN.split('/')[1];
-    var id = crypto.createHash('md5')
+    var id = crypto.createHash('sha256')
         .update(JSON.stringify(event.Records[0].dynamodb.Keys))
         .digest('hex');
 
@@ -244,7 +244,7 @@ test('[incremental backup] adjust many', function(assert) {
         expected.forEach(function(record) {
             q.defer(function(next) {
                 var key = { id: record.id };
-                var id = crypto.createHash('md5')
+                var id = crypto.createHash('sha256')
                     .update(JSON.stringify(key))
                     .digest('hex');
 
@@ -264,7 +264,7 @@ test('[incremental backup] adjust many', function(assert) {
         });
 
         q.defer(function(next) {
-            var id = crypto.createHash('md5')
+            var id = crypto.createHash('sha256')
                 .update(JSON.stringify({ id: { S: 'record-1' } }))
                 .digest('hex');