Move deps from _workspace/ to vendor/

godep restore
pushd $GOPATH/src/github.com/appc/spec
git co master
popd
go get go4.org/errorutil
rm -rf Godeps
godep save ./...
git add vendor
git add -f $(git ls-files --other vendor/)
git co -- Godeps/LICENSES Godeps/.license_file_state Godeps/OWNERS

vendor/github.com/elazarl/goproxy/counterecryptor.go

@@ -0,0 +1,68 @@
+package goproxy
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rsa"
+	"crypto/sha256"
+	"crypto/x509"
+	"errors"
+)
+
+type CounterEncryptorRand struct {
+	cipher  cipher.Block
+	counter []byte
+	rand    []byte
+	ix      int
+}
+
+func NewCounterEncryptorRandFromKey(key interface{}, seed []byte) (r CounterEncryptorRand, err error) {
+	var keyBytes []byte
+	switch key := key.(type) {
+	case *rsa.PrivateKey:
+		keyBytes = x509.MarshalPKCS1PrivateKey(key)
+	default:
+		err = errors.New("only RSA keys supported")
+		return
+	}
+	h := sha256.New()
+	if r.cipher, err = aes.NewCipher(h.Sum(keyBytes)[:aes.BlockSize]); err != nil {
+		return
+	}
+	r.counter = make([]byte, r.cipher.BlockSize())
+	if seed != nil {
+		copy(r.counter, h.Sum(seed)[:r.cipher.BlockSize()])
+	}
+	r.rand = make([]byte, r.cipher.BlockSize())
+	r.ix = len(r.rand)
+	return
+}
+
+func (c *CounterEncryptorRand) Seed(b []byte) {
+	if len(b) != len(c.counter) {
+		panic("SetCounter: wrong counter size")
+	}
+	copy(c.counter, b)
+}
+
+func (c *CounterEncryptorRand) refill() {
+	c.cipher.Encrypt(c.rand, c.counter)
+	for i := 0; i < len(c.counter); i++ {
+		if c.counter[i]++; c.counter[i] != 0 {
+			break
+		}
+	}
+	c.ix = 0
+}
+
+func (c *CounterEncryptorRand) Read(b []byte) (n int, err error) {
+	if c.ix == len(c.rand) {
+		c.refill()
+	}
+	if n = len(c.rand) - c.ix; n > len(b) {
+		n = len(b)
+	}
+	copy(b, c.rand[c.ix:c.ix+n])
+	c.ix += n
+	return
+}