From 2388222e98462fdbbe44f3e091b2b79d80956a9a Mon Sep 17 00:00:00 2001 From: Valentin Rothberg Date: Mon, 24 Jun 2019 21:29:31 +0200 Subject: update dependencies Ran a `go get -u` and bumped K8s deps to 1.15.0. Signed-off-by: Valentin Rothberg --- vendor/k8s.io/client-go/util/keyutil/OWNERS | 7 + vendor/k8s.io/client-go/util/keyutil/key.go | 323 ++++++++++++++++++++++++++++ 2 files changed, 330 insertions(+) create mode 100644 vendor/k8s.io/client-go/util/keyutil/OWNERS create mode 100644 vendor/k8s.io/client-go/util/keyutil/key.go (limited to 'vendor/k8s.io/client-go/util/keyutil') diff --git a/vendor/k8s.io/client-go/util/keyutil/OWNERS b/vendor/k8s.io/client-go/util/keyutil/OWNERS new file mode 100644 index 000000000..470b7a1c9 --- /dev/null +++ b/vendor/k8s.io/client-go/util/keyutil/OWNERS @@ -0,0 +1,7 @@ +approvers: +- sig-auth-certificates-approvers +reviewers: +- sig-auth-certificates-reviewers +labels: +- sig/auth + diff --git a/vendor/k8s.io/client-go/util/keyutil/key.go b/vendor/k8s.io/client-go/util/keyutil/key.go new file mode 100644 index 000000000..83c2c6254 --- /dev/null +++ b/vendor/k8s.io/client-go/util/keyutil/key.go @@ -0,0 +1,323 @@ +/* +Copyright 2018 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +// Package keyutil contains utilities for managing public/private key pairs. +package keyutil + +import ( + "crypto" + "crypto/ecdsa" + "crypto/elliptic" + cryptorand "crypto/rand" + "crypto/rsa" + "crypto/x509" + "encoding/pem" + "fmt" + "io/ioutil" + "os" + "path/filepath" +) + +const ( + // ECPrivateKeyBlockType is a possible value for pem.Block.Type. + ECPrivateKeyBlockType = "EC PRIVATE KEY" + // RSAPrivateKeyBlockType is a possible value for pem.Block.Type. + RSAPrivateKeyBlockType = "RSA PRIVATE KEY" + // PrivateKeyBlockType is a possible value for pem.Block.Type. + PrivateKeyBlockType = "PRIVATE KEY" + // PublicKeyBlockType is a possible value for pem.Block.Type. + PublicKeyBlockType = "PUBLIC KEY" +) + +// MakeEllipticPrivateKeyPEM creates an ECDSA private key +func MakeEllipticPrivateKeyPEM() ([]byte, error) { + privateKey, err := ecdsa.GenerateKey(elliptic.P256(), cryptorand.Reader) + if err != nil { + return nil, err + } + + derBytes, err := x509.MarshalECPrivateKey(privateKey) + if err != nil { + return nil, err + } + + privateKeyPemBlock := &pem.Block{ + Type: ECPrivateKeyBlockType, + Bytes: derBytes, + } + return pem.EncodeToMemory(privateKeyPemBlock), nil +} + +// WriteKey writes the pem-encoded key data to keyPath. +// The key file will be created with file mode 0600. +// If the key file already exists, it will be overwritten. +// The parent directory of the keyPath will be created as needed with file mode 0755. +func WriteKey(keyPath string, data []byte) error { + if err := os.MkdirAll(filepath.Dir(keyPath), os.FileMode(0755)); err != nil { + return err + } + return ioutil.WriteFile(keyPath, data, os.FileMode(0600)) +} + +// LoadOrGenerateKeyFile looks for a key in the file at the given path. If it +// can't find one, it will generate a new key and store it there. +func LoadOrGenerateKeyFile(keyPath string) (data []byte, wasGenerated bool, err error) { + loadedData, err := ioutil.ReadFile(keyPath) + // Call verifyKeyData to ensure the file wasn't empty/corrupt. + if err == nil && verifyKeyData(loadedData) { + return loadedData, false, err + } + if !os.IsNotExist(err) { + return nil, false, fmt.Errorf("error loading key from %s: %v", keyPath, err) + } + + generatedData, err := MakeEllipticPrivateKeyPEM() + if err != nil { + return nil, false, fmt.Errorf("error generating key: %v", err) + } + if err := WriteKey(keyPath, generatedData); err != nil { + return nil, false, fmt.Errorf("error writing key to %s: %v", keyPath, err) + } + return generatedData, true, nil +} + +// MarshalPrivateKeyToPEM converts a known private key type of RSA or ECDSA to +// a PEM encoded block or returns an error. +func MarshalPrivateKeyToPEM(privateKey crypto.PrivateKey) ([]byte, error) { + switch t := privateKey.(type) { + case *ecdsa.PrivateKey: + derBytes, err := x509.MarshalECPrivateKey(t) + if err != nil { + return nil, err + } + block := &pem.Block{ + Type: ECPrivateKeyBlockType, + Bytes: derBytes, + } + return pem.EncodeToMemory(block), nil + case *rsa.PrivateKey: + block := &pem.Block{ + Type: RSAPrivateKeyBlockType, + Bytes: x509.MarshalPKCS1PrivateKey(t), + } + return pem.EncodeToMemory(block), nil + default: + return nil, fmt.Errorf("private key is not a recognized type: %T", privateKey) + } +} + +// PrivateKeyFromFile returns the private key in rsa.PrivateKey or ecdsa.PrivateKey format from a given PEM-encoded file. +// Returns an error if the file could not be read or if the private key could not be parsed. +func PrivateKeyFromFile(file string) (interface{}, error) { + data, err := ioutil.ReadFile(file) + if err != nil { + return nil, err + } + key, err := ParsePrivateKeyPEM(data) + if err != nil { + return nil, fmt.Errorf("error reading private key file %s: %v", file, err) + } + return key, nil +} + +// PublicKeysFromFile returns the public keys in rsa.PublicKey or ecdsa.PublicKey format from a given PEM-encoded file. +// Reads public keys from both public and private key files. +func PublicKeysFromFile(file string) ([]interface{}, error) { + data, err := ioutil.ReadFile(file) + if err != nil { + return nil, err + } + keys, err := ParsePublicKeysPEM(data) + if err != nil { + return nil, fmt.Errorf("error reading public key file %s: %v", file, err) + } + return keys, nil +} + +// verifyKeyData returns true if the provided data appears to be a valid private key. +func verifyKeyData(data []byte) bool { + if len(data) == 0 { + return false + } + _, err := ParsePrivateKeyPEM(data) + return err == nil +} + +// ParsePrivateKeyPEM returns a private key parsed from a PEM block in the supplied data. +// Recognizes PEM blocks for "EC PRIVATE KEY", "RSA PRIVATE KEY", or "PRIVATE KEY" +func ParsePrivateKeyPEM(keyData []byte) (interface{}, error) { + var privateKeyPemBlock *pem.Block + for { + privateKeyPemBlock, keyData = pem.Decode(keyData) + if privateKeyPemBlock == nil { + break + } + + switch privateKeyPemBlock.Type { + case ECPrivateKeyBlockType: + // ECDSA Private Key in ASN.1 format + if key, err := x509.ParseECPrivateKey(privateKeyPemBlock.Bytes); err == nil { + return key, nil + } + case RSAPrivateKeyBlockType: + // RSA Private Key in PKCS#1 format + if key, err := x509.ParsePKCS1PrivateKey(privateKeyPemBlock.Bytes); err == nil { + return key, nil + } + case PrivateKeyBlockType: + // RSA or ECDSA Private Key in unencrypted PKCS#8 format + if key, err := x509.ParsePKCS8PrivateKey(privateKeyPemBlock.Bytes); err == nil { + return key, nil + } + } + + // tolerate non-key PEM blocks for compatibility with things like "EC PARAMETERS" blocks + // originally, only the first PEM block was parsed and expected to be a key block + } + + // we read all the PEM blocks and didn't recognize one + return nil, fmt.Errorf("data does not contain a valid RSA or ECDSA private key") +} + +// ParsePublicKeysPEM is a helper function for reading an array of rsa.PublicKey or ecdsa.PublicKey from a PEM-encoded byte array. +// Reads public keys from both public and private key files. +func ParsePublicKeysPEM(keyData []byte) ([]interface{}, error) { + var block *pem.Block + keys := []interface{}{} + for { + // read the next block + block, keyData = pem.Decode(keyData) + if block == nil { + break + } + + // test block against parsing functions + if privateKey, err := parseRSAPrivateKey(block.Bytes); err == nil { + keys = append(keys, &privateKey.PublicKey) + continue + } + if publicKey, err := parseRSAPublicKey(block.Bytes); err == nil { + keys = append(keys, publicKey) + continue + } + if privateKey, err := parseECPrivateKey(block.Bytes); err == nil { + keys = append(keys, &privateKey.PublicKey) + continue + } + if publicKey, err := parseECPublicKey(block.Bytes); err == nil { + keys = append(keys, publicKey) + continue + } + + // tolerate non-key PEM blocks for backwards compatibility + // originally, only the first PEM block was parsed and expected to be a key block + } + + if len(keys) == 0 { + return nil, fmt.Errorf("data does not contain any valid RSA or ECDSA public keys") + } + return keys, nil +} + +// parseRSAPublicKey parses a single RSA public key from the provided data +func parseRSAPublicKey(data []byte) (*rsa.PublicKey, error) { + var err error + + // Parse the key + var parsedKey interface{} + if parsedKey, err = x509.ParsePKIXPublicKey(data); err != nil { + if cert, err := x509.ParseCertificate(data); err == nil { + parsedKey = cert.PublicKey + } else { + return nil, err + } + } + + // Test if parsed key is an RSA Public Key + var pubKey *rsa.PublicKey + var ok bool + if pubKey, ok = parsedKey.(*rsa.PublicKey); !ok { + return nil, fmt.Errorf("data doesn't contain valid RSA Public Key") + } + + return pubKey, nil +} + +// parseRSAPrivateKey parses a single RSA private key from the provided data +func parseRSAPrivateKey(data []byte) (*rsa.PrivateKey, error) { + var err error + + // Parse the key + var parsedKey interface{} + if parsedKey, err = x509.ParsePKCS1PrivateKey(data); err != nil { + if parsedKey, err = x509.ParsePKCS8PrivateKey(data); err != nil { + return nil, err + } + } + + // Test if parsed key is an RSA Private Key + var privKey *rsa.PrivateKey + var ok bool + if privKey, ok = parsedKey.(*rsa.PrivateKey); !ok { + return nil, fmt.Errorf("data doesn't contain valid RSA Private Key") + } + + return privKey, nil +} + +// parseECPublicKey parses a single ECDSA public key from the provided data +func parseECPublicKey(data []byte) (*ecdsa.PublicKey, error) { + var err error + + // Parse the key + var parsedKey interface{} + if parsedKey, err = x509.ParsePKIXPublicKey(data); err != nil { + if cert, err := x509.ParseCertificate(data); err == nil { + parsedKey = cert.PublicKey + } else { + return nil, err + } + } + + // Test if parsed key is an ECDSA Public Key + var pubKey *ecdsa.PublicKey + var ok bool + if pubKey, ok = parsedKey.(*ecdsa.PublicKey); !ok { + return nil, fmt.Errorf("data doesn't contain valid ECDSA Public Key") + } + + return pubKey, nil +} + +// parseECPrivateKey parses a single ECDSA private key from the provided data +func parseECPrivateKey(data []byte) (*ecdsa.PrivateKey, error) { + var err error + + // Parse the key + var parsedKey interface{} + if parsedKey, err = x509.ParseECPrivateKey(data); err != nil { + return nil, err + } + + // Test if parsed key is an ECDSA Private Key + var privKey *ecdsa.PrivateKey + var ok bool + if privKey, ok = parsedKey.(*ecdsa.PrivateKey); !ok { + return nil, fmt.Errorf("data doesn't contain valid ECDSA Private Key") + } + + return privKey, nil +} -- cgit v1.2.3-54-g00ecf