diff --git a/test/ecsignature.js b/test/ecsignature.js
index cf46987..5fbe78a 100644
--- a/test/ecsignature.js
+++ b/test/ecsignature.js
@@ -79,4 +79,41 @@ describe('ECSignature', function() {
       })
     })
   })
+
+  describe('toScriptSignature', function() {
+    it('encodes a script signature', function() {
+      fixtures.valid.forEach(function(f) {
+        var signature = new ECSignature(
+          new BigInteger(f.signature.r),
+          new BigInteger(f.signature.s)
+        )
+
+        var scriptSignature = signature.toScriptSignature(f.scriptSignature.hashType)
+        assert.equal(scriptSignature.toString('hex'), f.scriptSignature.hex)
+      })
+    })
+  })
+
+  describe('fromScriptSignature', function() {
+    it('decodes the correct signature', function() {
+      fixtures.valid.forEach(function(f) {
+        var buffer = new Buffer(f.scriptSignature.hex, 'hex')
+        var parsed = ECSignature.fromScriptSignature(buffer)
+
+        assert.equal(parsed.signature.r.toString(), f.signature.r)
+        assert.equal(parsed.signature.s.toString(), f.signature.s)
+        assert.equal(parsed.hashType, f.scriptSignature.hashType)
+      })
+    })
+
+    fixtures.invalid.DER.forEach(function(f) {
+      it('throws on ' + f.hex, function() {
+        var buffer = new Buffer(f.hex + '01', 'hex')
+
+        assert.throws(function() {
+          ECSignature.fromScriptSignature(buffer)
+        }, new RegExp(f.exception))
+      })
+    })
+  })
 })
diff --git a/test/fixtures/ecsignature.json b/test/fixtures/ecsignature.json
index 8538356..814fea6 100644
--- a/test/fixtures/ecsignature.json
+++ b/test/fixtures/ecsignature.json
@@ -6,6 +6,10 @@
         "compressed": true,
         "i": 0
       },
+      "scriptSignature": {
+        "hex": "3044022033a69cd2065432a30f3d1ce4eb0d59b8ab58c74f27c41a7fdb5696ad4e6108c902206f807982866f785d3f6418d24163ddae117b7db4d5fdf0071de069fa5434226201",
+        "hashType": 1
+      },
       "DER": "3044022033a69cd2065432a30f3d1ce4eb0d59b8ab58c74f27c41a7fdb5696ad4e6108c902206f807982866f785d3f6418d24163ddae117b7db4d5fdf0071de069fa54342262",
       "signature": {
         "r": "23362334225185207751494092901091441011938859014081160902781146257181456271561",
@@ -19,6 +23,10 @@
         "i": 0
       },
       "DER": "3044022054c4a33c6423d689378f160a7ff8b61330444abb58fb470f96ea16d99d4a2fed022007082304410efa6b2943111b6a4e0aaa7b7db55a07e9861d1fb3cb1f421044a5",
+      "scriptSignature": {
+        "hex": "3044022054c4a33c6423d689378f160a7ff8b61330444abb58fb470f96ea16d99d4a2fed022007082304410efa6b2943111b6a4e0aaa7b7db55a07e9861d1fb3cb1f421044a502",
+        "hashType": 2
+      },
       "signature": {
         "r": "38341707918488238920692284707283974715538935465589664377561695343399725051885",
         "s": "3180566392414476763164587487324397066658063772201694230600609996154610926757"
@@ -30,6 +38,10 @@
         "compressed": true,
         "i": 0
       },
+      "scriptSignature": {
+        "hex": "3045022100ff466a9f1b7b273e2f4c3ffe032eb2e814121ed18ef84665d0f515360dab3dd002206fc95f5132e5ecfdc8e5e6e616cc77151455d46ed48f5589b7db7771a332b28303",
+        "hashType": 3
+      },
       "DER": "3045022100ff466a9f1b7b273e2f4c3ffe032eb2e814121ed18ef84665d0f515360dab3dd002206fc95f5132e5ecfdc8e5e6e616cc77151455d46ed48f5589b7db7771a332b283",
       "signature": {
         "r": "115464191557905790016094131873849783294273568009648050793030031933291767741904",
@@ -42,6 +54,10 @@
         "compressed": false,
         "i": 1
       },
+      "scriptSignature": {
+        "hex": "3045022100c0dafec8251f1d5010289d210232220b03202cba34ec11fec58b3e93a85b91d3022075afdc06b7d6322a590955bf264e7aaa155847f614d80078a90292fe205064d381",
+        "hashType": 129
+      },
       "DER": "3045022100c0dafec8251f1d5010289d210232220b03202cba34ec11fec58b3e93a85b91d3022075afdc06b7d6322a590955bf264e7aaa155847f614d80078a90292fe205064d3",
       "signature": {
         "r": "87230998027579607140680851455601772643840468630989315269459846730712163783123",
@@ -54,6 +70,10 @@
         "compressed": true,
         "i": 0
       },
+      "scriptSignature": {
+        "hex": "304402207186363571d65e084e7f02b0b77c3ec44fb1b257dee26274c38c928986fea45d02200de0b38e06807e46bda1f1e293f4f6323e854c86d58abdd00c46c16441085df682",
+        "hashType": 130
+      },
       "DER": "304402207186363571d65e084e7f02b0b77c3ec44fb1b257dee26274c38c928986fea45d02200de0b38e06807e46bda1f1e293f4f6323e854c86d58abdd00c46c16441085df6",
       "signature": {
         "r": "51348483531757779992459563033975330355971795607481991320287437101831125115997",
@@ -66,6 +86,10 @@
         "compressed": false,
         "i": 1
       },
+      "scriptSignature": {
+        "hex": "3045022100fbfe5076a15860ba8ed00e75e9bd22e05d230f02a936b653eb55b61c99dda48702200e68880ebb0050fe4312b1b1eb0899e1b82da89baa5b895f612619edf34cbd3783",
+        "hashType": 131
+      },
       "DER": "3045022100fbfe5076a15860ba8ed00e75e9bd22e05d230f02a936b653eb55b61c99dda48702200e68880ebb0050fe4312b1b1eb0899e1b82da89baa5b895f612619edf34cbd37",
       "signature": {
         "r": "113979859486826658566290715281614250298918272782414232881639314569529560769671",
@@ -78,6 +102,10 @@
         "compressed": true,
         "i": 1
       },
+      "scriptSignature": {
+        "hex": "3045022100cde1302d83f8dd835d89aef803c74a119f561fbaef3eb9129e45f30de86abbf9022006ce643f5049ee1f27890467b77a6a8e11ec4661cc38cd8badf90115fbd03cefff",
+        "hashType": 255
+      },
       "DER": "3045022100cde1302d83f8dd835d89aef803c74a119f561fbaef3eb9129e45f30de86abbf9022006ce643f5049ee1f27890467b77a6a8e11ec4661cc38cd8badf90115fbd03cef",
       "signature": {
         "r": "93122007060065279508564838030979550535085999589142852106617159184757394422777",