From d318fdb5577600b2adf83f71dfac02d0177a723c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=A1=D0=BA=D0=BE=D0=B2=D0=BE=D1=80=D0=BE=D0=B4=D0=B0=20?=
 =?UTF-8?q?=D0=9D=D0=B8=D0=BA=D0=B8=D1=82=D0=B0=20=D0=90=D0=BD=D0=B4=D1=80?=
 =?UTF-8?q?=D0=B5=D0=B5=D0=B2=D0=B8=D1=87?= <chalkerx@gmail.com>
Date: Sun, 31 May 2020 15:31:06 +0300
Subject: [PATCH 1/3] Implement sha512-256 and sha512-224

---
 index.js      |  2 ++
 sha512-224.js | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++
 sha512-256.js | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 109 insertions(+)
 create mode 100644 sha512-224.js
 create mode 100644 sha512-256.js

diff --git a/index.js b/index.js
index 87cdf49..8dee2ec 100644
--- a/index.js
+++ b/index.js
@@ -13,3 +13,5 @@ exports.sha224 = require('./sha224')
 exports.sha256 = require('./sha256')
 exports.sha384 = require('./sha384')
 exports.sha512 = require('./sha512')
+exports['sha512-224'] = require('./sha512-224')
+exports['sha512-256'] = require('./sha512-256')
diff --git a/sha512-224.js b/sha512-224.js
new file mode 100644
index 0000000..bea7d37
--- /dev/null
+++ b/sha512-224.js
@@ -0,0 +1,53 @@
+var inherits = require('inherits')
+var Sha512 = require('./sha512')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
+
+var W = new Array(160)
+
+function Sha512h256 () {
+  this.init()
+  this._w = W
+
+  Hash.call(this, 128, 112)
+}
+
+inherits(Sha512h256, Sha512)
+
+Sha512h256.prototype.init = function () {
+  this._ah = 0x8c3d37c8
+  this._bh = 0x73e19966
+  this._ch = 0x1dfab7ae
+  this._dh = 0x679dd514
+  this._eh = 0x0f6d2b69
+  this._fh = 0x77e36f73
+  this._gh = 0x3f9d85a8
+  this._hh = 0x1112e6ad
+
+  this._al = 0x19544da2
+  this._bl = 0x89dcd4d6
+  this._cl = 0x32ff9c82
+  this._dl = 0x582f9fcf
+  this._el = 0x7bd44da8
+  this._fl = 0x04c48942
+  this._gl = 0x6a1d36c8
+  this._hl = 0x91d692a1
+
+  return this
+}
+
+Sha512h256.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(28)
+
+  H.writeInt32BE(this._ah, 0)
+  H.writeInt32BE(this._al, 4)
+  H.writeInt32BE(this._bh, 8)
+  H.writeInt32BE(this._bl, 12)
+  H.writeInt32BE(this._ch, 16)
+  H.writeInt32BE(this._cl, 20)
+  H.writeInt32BE(this._dh, 24)
+
+  return H
+}
+
+module.exports = Sha512h256
diff --git a/sha512-256.js b/sha512-256.js
new file mode 100644
index 0000000..9c92a76
--- /dev/null
+++ b/sha512-256.js
@@ -0,0 +1,54 @@
+var inherits = require('inherits')
+var Sha512 = require('./sha512')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
+
+var W = new Array(160)
+
+function Sha512h256 () {
+  this.init()
+  this._w = W
+
+  Hash.call(this, 128, 112)
+}
+
+inherits(Sha512h256, Sha512)
+
+Sha512h256.prototype.init = function () {
+  this._ah = 0x22312194
+  this._bh = 0x9f555fa3
+  this._ch = 0x2393b86b
+  this._dh = 0x96387719
+  this._eh = 0x96283ee2
+  this._fh = 0xbe5e1e25
+  this._gh = 0x2b0199fc
+  this._hh = 0x0eb72ddc
+
+  this._al = 0xfc2bf72c
+  this._bl = 0xc84c64c2
+  this._cl = 0x6f53b151
+  this._dl = 0x5940eabd
+  this._el = 0xa88effe3
+  this._fl = 0x53863992
+  this._gl = 0x2c85b8aa
+  this._hl = 0x81c52ca2
+
+  return this
+}
+
+Sha512h256.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(32)
+
+  H.writeInt32BE(this._ah, 0)
+  H.writeInt32BE(this._al, 4)
+  H.writeInt32BE(this._bh, 8)
+  H.writeInt32BE(this._bl, 12)
+  H.writeInt32BE(this._ch, 16)
+  H.writeInt32BE(this._cl, 20)
+  H.writeInt32BE(this._dh, 24)
+  H.writeInt32BE(this._dl, 28)
+
+  return H
+}
+
+module.exports = Sha512h256

From 55e9196c0eee137b3dc2874d3008b67f16a5af8a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=A1=D0=BA=D0=BE=D0=B2=D0=BE=D1=80=D0=BE=D0=B4=D0=B0=20?=
 =?UTF-8?q?=D0=9D=D0=B8=D0=BA=D0=B8=D1=82=D0=B0=20=D0=90=D0=BD=D0=B4=D1=80?=
 =?UTF-8?q?=D0=B5=D0=B5=D0=B2=D0=B8=D1=87?= <chalkerx@gmail.com>
Date: Sun, 31 May 2020 15:37:56 +0300
Subject: [PATCH 2/3] Test on newer Node.js versions, too

Older don't have sha512-256 and sha512-224, but they should get tested.
---
 .travis.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 0b606eb..c8ad14c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,10 @@ node_js:
   - "5"
   - "6"
   - "7"
+  - "8"
+  - "10"
+  - "12"
+  - "14"
 env:
   matrix:
     - TEST_SUITE=unit

From c52c81b52f171347f91c3ce319c9a61e45d7a02c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=A1=D0=BA=D0=BE=D0=B2=D0=BE=D1=80=D0=BE=D0=B4=D0=B0=20?=
 =?UTF-8?q?=D0=9D=D0=B8=D0=BA=D0=B8=D1=82=D0=B0=20=D0=90=D0=BD=D0=B4=D1=80?=
 =?UTF-8?q?=D0=B5=D0=B5=D0=B2=D0=B8=D1=87?= <chalkerx@gmail.com>
Date: Sun, 31 May 2020 15:20:46 +0300
Subject: [PATCH 3/3] test: test that all algos match Node.js

---
 test/test.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/test/test.js b/test/test.js
index dac8580..26da03f 100644
--- a/test/test.js
+++ b/test/test.js
@@ -1,6 +1,7 @@
 var crypto = require('crypto')
 var tape = require('tape')
 var Sha1 = require('../').sha1
+var sha = require('../')
 
 var inputs = [
   ['', 'ascii'],
@@ -25,6 +26,21 @@ tape("hash is the same as node's crypto", function (t) {
   t.end()
 })
 
+tape("hash is the same as node's crypto for all algos provided by node", function (t) {
+  var hashes = crypto.getHashes()
+  Object.keys(sha).forEach(function (alg) {
+    if (hashes.indexOf(alg) === -1) return // skip unsupported by current Node.js version
+    inputs.forEach(function (v) {
+      var a = new sha[alg]().update(v[0], v[1]).digest('hex')
+      var e = crypto.createHash(alg).update(v[0], v[1]).digest('hex')
+      console.log(alg, a, '==', e)
+      t.equal(a, e)
+    })
+  })
+
+  t.end()
+})
+
 tape('call update multiple times', function (t) {
   inputs.forEach(function (v) {
     var hash = new Sha1()