diff --git a/handshake_messages.go b/handshake_messages.go
index b9c4cc3..7ad5276 100644
--- a/handshake_messages.go
+++ b/handshake_messages.go
@@ -4,10 +4,6 @@
 
 package tls
 
-import (
-	"bytes";
-)
-
 type clientHelloMsg struct {
 	raw			[]byte;
 	major, minor		uint8;
@@ -30,9 +26,9 @@ func (m *clientHelloMsg) marshal() []byte {
 	x[3] = uint8(length);
 	x[4] = m.major;
 	x[5] = m.minor;
-	bytes.Copy(x[6:38], m.random);
+	copy(x[6:38], m.random);
 	x[38] = uint8(len(m.sessionId));
-	bytes.Copy(x[39:39+len(m.sessionId)], m.sessionId);
+	copy(x[39:39+len(m.sessionId)], m.sessionId);
 	y := x[39+len(m.sessionId) : len(x)];
 	y[0] = uint8(len(m.cipherSuites) >> 7);
 	y[1] = uint8(len(m.cipherSuites) << 1);
@@ -42,7 +38,7 @@ func (m *clientHelloMsg) marshal() []byte {
 	}
 	z := y[2+len(m.cipherSuites)*2 : len(y)];
 	z[0] = uint8(len(m.compressionMethods));
-	bytes.Copy(z[1:len(z)], m.compressionMethods);
+	copy(z[1:len(z)], m.compressionMethods);
 	m.raw = x;
 
 	return x;
@@ -112,9 +108,9 @@ func (m *serverHelloMsg) marshal() []byte {
 	x[3] = uint8(length);
 	x[4] = m.major;
 	x[5] = m.minor;
-	bytes.Copy(x[6:38], m.random);
+	copy(x[6:38], m.random);
 	x[38] = uint8(len(m.sessionId));
-	bytes.Copy(x[39:39+len(m.sessionId)], m.sessionId);
+	copy(x[39:39+len(m.sessionId)], m.sessionId);
 	z := x[39+len(m.sessionId) : len(x)];
 	z[0] = uint8(m.cipherSuite >> 8);
 	z[1] = uint8(m.cipherSuite);
@@ -156,7 +152,7 @@ func (m *certificateMsg) marshal() (x []byte) {
 		y[0] = uint8(len(slice) >> 16);
 		y[1] = uint8(len(slice) >> 8);
 		y[2] = uint8(len(slice));
-		bytes.Copy(y[3:len(y)], slice);
+		copy(y[3:len(y)], slice);
 		y = y[3+len(slice) : len(y)];
 	}
 
@@ -189,7 +185,7 @@ func (m *clientKeyExchangeMsg) marshal() []byte {
 	x[3] = uint8(length);
 	x[4] = uint8(len(m.ciphertext) >> 8);
 	x[5] = uint8(len(m.ciphertext));
-	bytes.Copy(x[6:len(x)], m.ciphertext);
+	copy(x[6:len(x)], m.ciphertext);
 
 	m.raw = x;
 	return x;
@@ -221,7 +217,7 @@ func (m *finishedMsg) marshal() (x []byte) {
 	x = make([]byte, 16);
 	x[0] = typeFinished;
 	x[3] = 12;
-	bytes.Copy(x[4:len(x)], m.verifyData);
+	copy(x[4:len(x)], m.verifyData);
 	m.raw = x;
 	return;
 }
diff --git a/prf.go b/prf.go
index c8cb916..4009c94 100644
--- a/prf.go
+++ b/prf.go
@@ -5,7 +5,6 @@
 package tls
 
 import (
-	"bytes";
 	"crypto/hmac";
 	"crypto/md5";
 	"crypto/sha1";
@@ -37,7 +36,7 @@ func pHash(result, secret, seed []byte, hash hash.Hash) {
 		if j+todo > len(result) {
 			todo = len(result) - j
 		}
-		bytes.Copy(result[j:j+todo], b);
+		copy(result[j:j+todo], b);
 		j += todo;
 
 		h.Reset();
@@ -52,8 +51,8 @@ func pRF11(result, secret, label, seed []byte) {
 	hashMD5 := md5.New();
 
 	labelAndSeed := make([]byte, len(label)+len(seed));
-	bytes.Copy(labelAndSeed, label);
-	bytes.Copy(labelAndSeed[len(label):len(labelAndSeed)], seed);
+	copy(labelAndSeed, label);
+	copy(labelAndSeed[len(label):len(labelAndSeed)], seed);
 
 	s1, s2 := splitPreMasterSecret(secret);
 	pHash(result, s1, labelAndSeed, hashMD5);
@@ -81,13 +80,13 @@ var serverFinishedLabel = strings.Bytes("server finished")
 // 4346, section 6.3.
 func keysFromPreMasterSecret11(preMasterSecret, clientRandom, serverRandom []byte, macLen, keyLen int) (masterSecret, clientMAC, serverMAC, clientKey, serverKey []byte) {
 	var seed [tlsRandomLength * 2]byte;
-	bytes.Copy(seed[0:len(clientRandom)], clientRandom);
-	bytes.Copy(seed[len(clientRandom):len(seed)], serverRandom);
+	copy(seed[0:len(clientRandom)], clientRandom);
+	copy(seed[len(clientRandom):len(seed)], serverRandom);
 	masterSecret = make([]byte, masterSecretLength);
 	pRF11(masterSecret, preMasterSecret, masterSecretLabel, seed[0:len(seed)]);
 
-	bytes.Copy(seed[0:len(clientRandom)], serverRandom);
-	bytes.Copy(seed[len(serverRandom):len(seed)], clientRandom);
+	copy(seed[0:len(clientRandom)], serverRandom);
+	copy(seed[len(serverRandom):len(seed)], clientRandom);
 
 	n := 2*macLen + 2*keyLen;
 	keyMaterial := make([]byte, n);
@@ -124,8 +123,8 @@ func (h finishedHash) Write(msg []byte) (n int, err os.Error) {
 // message given the MD5 and SHA1 hashes of a set of handshake messages.
 func finishedSum(md5, sha1, label, masterSecret []byte) []byte {
 	seed := make([]byte, len(md5)+len(sha1));
-	bytes.Copy(seed, md5);
-	bytes.Copy(seed[len(md5):len(seed)], sha1);
+	copy(seed, md5);
+	copy(seed[len(md5):len(seed)], sha1);
 	out := make([]byte, finishedVerifyLength);
 	pRF11(out, masterSecret, label, seed);
 	return out;
diff --git a/record_process.go b/record_process.go
index 3bb0cd4..86b908a 100644
--- a/record_process.go
+++ b/record_process.go
@@ -10,7 +10,6 @@ package tls
 // state, or for a notification when the state changes.
 
 import (
-	"bytes";
 	"container/list";
 	"crypto/subtle";
 	"hash";
@@ -228,8 +227,8 @@ func (p *recordProcessor) processHandshakeRecord(data []byte) {
 			return;
 		}
 		newBuf := make([]byte, len(p.handshakeBuf)+len(data));
-		bytes.Copy(newBuf, p.handshakeBuf);
-		bytes.Copy(newBuf[len(p.handshakeBuf):len(newBuf)], data);
+		copy(newBuf, p.handshakeBuf);
+		copy(newBuf[len(p.handshakeBuf):len(newBuf)], data);
 		p.handshakeBuf = newBuf;
 	}
 
diff --git a/tls.go b/tls.go
index 20b1139..8f6ad11 100644
--- a/tls.go
+++ b/tls.go
@@ -6,7 +6,6 @@
 package tls
 
 import (
-	"bytes";
 	"io";
 	"os";
 	"net";
@@ -59,7 +58,7 @@ func (tls *Conn) Read(p []byte) (int, os.Error) {
 		}
 	}
 
-	n := bytes.Copy(p, tls.readBuf);
+	n := copy(p, tls.readBuf);
 	tls.readBuf = tls.readBuf[n:len(tls.readBuf)];
 	return n, nil;
 }