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open-vault
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Mostly revert changes to certutil as the embedded struct stuff was being 

problematic.
This commit is contained in:
Jeff Mitchell 2015-11-19 14:15:36 -05:00
parent af3d6ced8e
commit 0dbe15cb87
3 changed files with 187 additions and 212 deletions
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6
builtin/logical/pki/cert_util.go
View File

@ -585,10 +585,9 @@ func createCertificate(creationInfo *creationBundle) (*certutil.ParsedCertBundle
return nil, err
}
resultIface := interface{}(result)
if err := certutil.GeneratePrivateKey(creationInfo.KeyType,
creationInfo.KeyBits,
resultIface.(certutil.EmbeddedParsedPrivateKeyContainer)); err != nil {
result); err != nil {
return nil, err
}
@ -693,10 +692,9 @@ func createCSR(creationInfo *creationBundle) (*certutil.ParsedCSRBundle, error)
var err error
result := &certutil.ParsedCSRBundle{}
resultIface := interface{}(result)
if err := certutil.GeneratePrivateKey(creationInfo.KeyType,
creationInfo.KeyBits,
resultIface.(certutil.EmbeddedParsedPrivateKeyContainer)); err != nil {
result); err != nil {
return nil, err
}

20
helper/certutil/helpers.go
View File

@ -184,20 +184,22 @@ func ParsePEMBundle(pemBundle string) (*ParsedCertBundle, error) {
}
// GeneratePrivateKey generates a private key with the specified type and key bits
func GeneratePrivateKey(keyType string, keyBits int, emb EmbeddedParsedPrivateKeyContainer) error {
func GeneratePrivateKey(keyType string, keyBits int, container ParsedPrivateKeyContainer) error {
var err error
result := &EmbeddedParsedPrivateKey{}
var privateKeyType int
var privateKeyBytes []byte
var privateKey crypto.Signer
switch keyType {
case "rsa":
result.PrivateKeyType = RSAPrivateKey
result.PrivateKey, err = rsa.GenerateKey(rand.Reader, keyBits)
privateKeyType = RSAPrivateKey
privateKey, err = rsa.GenerateKey(rand.Reader, keyBits)
if err != nil {
return InternalError{Err: fmt.Sprintf("error generating RSA private key: %v", err)}
}
result.PrivateKeyBytes = x509.MarshalPKCS1PrivateKey(result.PrivateKey.(*rsa.PrivateKey))
privateKeyBytes = x509.MarshalPKCS1PrivateKey(privateKey.(*rsa.PrivateKey))
case "ec":
result.PrivateKeyType = ECPrivateKey
privateKeyType = ECPrivateKey
var curve elliptic.Curve
switch keyBits {
case 224:
@ -211,11 +213,11 @@ func GeneratePrivateKey(keyType string, keyBits int, emb EmbeddedParsedPrivateKe
default:
return UserError{Err: fmt.Sprintf("unsupported bit length for EC key: %d", keyBits)}
}
result.PrivateKey, err = ecdsa.GenerateKey(curve, rand.Reader)
privateKey, err = ecdsa.GenerateKey(curve, rand.Reader)
if err != nil {
return InternalError{Err: fmt.Sprintf("error generating EC private key: %v", err)}
}
result.PrivateKeyBytes, err = x509.MarshalECPrivateKey(result.PrivateKey.(*ecdsa.PrivateKey))
privateKeyBytes, err = x509.MarshalECPrivateKey(privateKey.(*ecdsa.PrivateKey))
if err != nil {
return InternalError{Err: fmt.Sprintf("error marshalling EC private key: %v", err)}
}
@ -223,7 +225,7 @@ func GeneratePrivateKey(keyType string, keyBits int, emb EmbeddedParsedPrivateKe
return UserError{Err: fmt.Sprintf("unknown key type: %s", keyType)}
}
emb.SetParsedPrivateKey(result)
container.SetParsedPrivateKey(privateKey, privateKeyType, privateKeyBytes)
return nil
}

373
helper/certutil/types.go
View File

@ -64,47 +64,28 @@ func (e InternalError) Error() string {
return e.Err
}
// EmbeddedPrivateKey contains private key information
type EmbeddedPrivateKey struct {
PrivateKeyType string `json:"private_key_type" structs:"private_key_type" mapstructure:"private_key_type"`
PrivateKey string `json:"private_key" structs:"private_key" mapstructure:"private_key"`
}
// EmbeddedParsedPrivateKey contains parsed private key information
type EmbeddedParsedPrivateKey struct {
PrivateKeyType int
PrivateKeyBytes []byte
PrivateKey crypto.Signer
}
// EmbeddedPrivateKeyContainer abstracts the private key from
// certificates and CSRs to allow common functions
type EmbeddedPrivateKeyContainer interface {
GetPrivateKey() *EmbeddedPrivateKey
SetPrivateKey(*EmbeddedPrivateKey)
}
// EmbeddedParsedPrivateKeyContainer abstracts the private key from
// parsed certificates and parsed CSRs to allow common functions
type EmbeddedParsedPrivateKeyContainer interface {
GetParsedPrivateKey() *EmbeddedParsedPrivateKey
SetParsedPrivateKey(*EmbeddedParsedPrivateKey)
// Used to allow common key setting for certs and CSRs
type ParsedPrivateKeyContainer interface {
SetParsedPrivateKey(crypto.Signer, int, []byte)
}
// CertBundle contains a key type, a PEM-encoded private key,
// a PEM-encoded certificate, and a string-encoded serial number,
// returned from a successful Issue request
type CertBundle struct {
EmbeddedPrivateKey
Certificate string `json:"certificate" structs:"certificate" mapstructure:"certificate"`
IssuingCA string `json:"issuing_ca" structs:"issuing_ca" mapstructure:"issuing_ca"`
SerialNumber string `json:"serial_number" structs:"serial_number" mapstructure:"serial_number"`
PrivateKeyType string `json:"private_key_type" structs:"private_key_type" mapstructure:"private_key_type"`
Certificate string `json:"certificate" structs:"certificate" mapstructure:"certificate"`
IssuingCA string `json:"issuing_ca" structs:"issuing_ca" mapstructure:"issuing_ca"`
PrivateKey string `json:"private_key" structs:"private_key" mapstructure:"private_key"`
SerialNumber string `json:"serial_number" structs:"serial_number" mapstructure:"serial_number"`
}
// ParsedCertBundle contains a key type, a DER-encoded private key,
// and a DER-encoded certificate
type ParsedCertBundle struct {
EmbeddedParsedPrivateKey
PrivateKeyType int
PrivateKeyBytes []byte
PrivateKey crypto.Signer
IssuingCABytes []byte
IssuingCA *x509.Certificate
CertificateBytes []byte
@ -114,29 +95,19 @@ type ParsedCertBundle struct {
// CSRBundle contains a key type, a PEM-encoded private key,
// and a PEM-encoded CSR
type CSRBundle struct {
EmbeddedPrivateKey
CSR string `json:"csr" structs:"csr" mapstructure:"csr"`
PrivateKeyType string `json:"private_key_type" structs:"private_key_type" mapstructure:"private_key_type"`
CSR string `json:"csr" structs:"csr" mapstructure:"csr"`
PrivateKey string `json:"private_key" structs:"private_key" mapstructure:"private_key"`
}
// ParsedCSRBundle contains a key type, a DER-encoded private key,
// and a DER-encoded certificate request
type ParsedCSRBundle struct {
EmbeddedParsedPrivateKey
CSRBytes []byte
CSR *x509.CertificateRequest
}
// GetPrivateKey returns the embedded private key values
func (c *CertBundle) GetPrivateKey() *EmbeddedPrivateKey {
return &EmbeddedPrivateKey{
PrivateKeyType: c.PrivateKeyType,
PrivateKey: c.PrivateKey,
}
}
// SetPrivateKey sets the embedded private key values
func (c *CertBundle) SetPrivateKey(emb *EmbeddedPrivateKey) {
c.EmbeddedPrivateKey = *emb
PrivateKeyType int
PrivateKeyBytes []byte
PrivateKey crypto.Signer
CSRBytes []byte
CSR *x509.CertificateRequest
}
// ToParsedCertBundle converts a string-based certificate bundle
@ -248,18 +219,164 @@ func (p *ParsedCertBundle) ToCertBundle() (*CertBundle, error) {
return result, nil
}
// GetParsedPrivateKey returns the embedded private key values
func (p *ParsedCertBundle) GetParsedPrivateKey() *EmbeddedParsedPrivateKey {
return &EmbeddedParsedPrivateKey{
PrivateKeyType: p.PrivateKeyType,
PrivateKey: p.PrivateKey,
PrivateKeyBytes: p.PrivateKeyBytes,
// GetSigner returns a crypto.Signer corresponding to the private key
// contained in this ParsedCertBundle. The Signer contains a Public() function
// for getting the corresponding public. The Signer can also be
// type-converted to private keys
func (p *ParsedCertBundle) getSigner() (crypto.Signer, error) {
var signer crypto.Signer
var err error
if p.PrivateKeyBytes == nil || len(p.PrivateKeyBytes) == 0 {
return nil, UserError{"Given parsed cert bundle does not have private key information"}
}
switch p.PrivateKeyType {
case ECPrivateKey:
signer, err = x509.ParseECPrivateKey(p.PrivateKeyBytes)
if err != nil {
return nil, UserError{fmt.Sprintf("Unable to parse CA's private EC key: %s", err)}
}
case RSAPrivateKey:
signer, err = x509.ParsePKCS1PrivateKey(p.PrivateKeyBytes)
if err != nil {
return nil, UserError{fmt.Sprintf("Unable to parse CA's private RSA key: %s", err)}
}
default:
return nil, UserError{"Unable to determine type of private key; only RSA and EC are supported"}
}
return signer, nil
}
// SetParsedPrivateKey sets the embedded private key values
func (p *ParsedCertBundle) SetParsedPrivateKey(emb *EmbeddedParsedPrivateKey) {
p.EmbeddedParsedPrivateKey = *emb
// SetParsedPrivateKey sets the private key parameters on the bundle
func (p *ParsedCertBundle) SetParsedPrivateKey(privateKey crypto.Signer, privateKeyType int, privateKeyBytes []byte) {
p.PrivateKey = privateKey
p.PrivateKeyType = privateKeyType
p.PrivateKeyBytes = privateKeyBytes
}
// ToParsedCSRBundle converts a string-based CSR bundle
// to a byte-based raw CSR bundle
func (c *CSRBundle) ToParsedCSRBundle() (*ParsedCSRBundle, error) {
result := &ParsedCSRBundle{}
var err error
var pemBlock *pem.Block
if len(c.PrivateKey) > 0 {
pemBlock, _ = pem.Decode([]byte(c.PrivateKey))
if pemBlock == nil {
return nil, UserError{"Error decoding private key from cert bundle"}
}
result.PrivateKeyBytes = pemBlock.Bytes
switch c.PrivateKeyType {
case "ec":
result.PrivateKeyType = ECPrivateKey
case "rsa":
result.PrivateKeyType = RSAPrivateKey
default:
// Try to figure it out and correct
if _, err := x509.ParseECPrivateKey(pemBlock.Bytes); err == nil {
result.PrivateKeyType = ECPrivateKey
c.PrivateKeyType = "ec"
} else if _, err := x509.ParsePKCS1PrivateKey(pemBlock.Bytes); err == nil {
result.PrivateKeyType = RSAPrivateKey
c.PrivateKeyType = "rsa"
} else {
return nil, UserError{fmt.Sprintf("Unknown private key type in bundle: %s", c.PrivateKeyType)}
}
}
result.PrivateKey, err = result.getSigner()
if err != nil {
return nil, UserError{fmt.Sprintf("Error getting signer: %s", err)}
}
}
if len(c.CSR) > 0 {
pemBlock, _ = pem.Decode([]byte(c.CSR))
if pemBlock == nil {
return nil, UserError{"Error decoding certificate from cert bundle"}
}
result.CSRBytes = pemBlock.Bytes
result.CSR, err = x509.ParseCertificateRequest(result.CSRBytes)
if err != nil {
return nil, UserError{"Error encountered parsing certificate bytes from raw bundle"}
}
}
return result, nil
}
// ToCSRBundle converts a byte-based raw DER certificate bundle
// to a PEM-based string certificate bundle
func (p *ParsedCSRBundle) ToCSRBundle() (*CSRBundle, error) {
result := &CSRBundle{}
block := pem.Block{
Type: "CERTIFICATE REQUEST",
}
if p.CSRBytes != nil && len(p.CSRBytes) > 0 {
block.Bytes = p.CSRBytes
result.CSR = strings.TrimSpace(string(pem.EncodeToMemory(&block)))
}
if p.PrivateKeyBytes != nil && len(p.PrivateKeyBytes) > 0 {
block.Bytes = p.PrivateKeyBytes
switch p.PrivateKeyType {
case RSAPrivateKey:
result.PrivateKeyType = "rsa"
block.Type = "RSA PRIVATE KEY"
case ECPrivateKey:
result.PrivateKeyType = "ec"
block.Type = "EC PRIVATE KEY"
default:
return nil, InternalError{"Could not determine private key type when creating block"}
}
result.PrivateKey = strings.TrimSpace(string(pem.EncodeToMemory(&block)))
}
return result, nil
}
// GetSigner returns a crypto.Signer corresponding to the private key
// contained in this ParsedCSRBundle. The Signer contains a Public() function
// for getting the corresponding public. The Signer can also be
// type-converted to private keys
func (p *ParsedCSRBundle) getSigner() (crypto.Signer, error) {
var signer crypto.Signer
var err error
if p.PrivateKeyBytes == nil || len(p.PrivateKeyBytes) == 0 {
return nil, UserError{"Given parsed cert bundle does not have private key information"}
}
switch p.PrivateKeyType {
case ECPrivateKey:
signer, err = x509.ParseECPrivateKey(p.PrivateKeyBytes)
if err != nil {
return nil, UserError{fmt.Sprintf("Unable to parse CA's private EC key: %s", err)}
}
case RSAPrivateKey:
signer, err = x509.ParsePKCS1PrivateKey(p.PrivateKeyBytes)
if err != nil {
return nil, UserError{fmt.Sprintf("Unable to parse CA's private RSA key: %s", err)}
}
default:
return nil, UserError{"Unable to determine type of private key; only RSA and EC are supported"}
}
return signer, nil
}
// SetParsedPrivateKey sets the private key parameters on the bundle
func (p *ParsedCSRBundle) SetParsedPrivateKey(privateKey crypto.Signer, privateKeyType int, privateKeyBytes []byte) {
p.PrivateKey = privateKey
p.PrivateKeyType = privateKeyType
p.PrivateKeyBytes = privateKeyBytes
}
// GetTLSConfig returns a TLS config generally suitable for client
@ -320,148 +437,6 @@ func (p *ParsedCertBundle) GetTLSConfig(usage TLSUsage) (*tls.Config, error) {
return tlsConfig, nil
}
// GetPrivateKey returns the embedded private key values
func (c *CSRBundle) GetPrivateKey() *EmbeddedPrivateKey {
return &EmbeddedPrivateKey{
PrivateKeyType: c.PrivateKeyType,
PrivateKey: c.PrivateKey,
}
}
// SetPrivateKey sets the embedded private key values
func (c *CSRBundle) SetPrivateKey(emb *EmbeddedPrivateKey) {
c.EmbeddedPrivateKey = *emb
}
// ToParsedCSRBundle converts a string-based CSR bundle
// to a byte-based raw CSR bundle
func (c *CSRBundle) ToParsedCSRBundle() (*ParsedCSRBundle, error) {
result := &ParsedCSRBundle{}
var err error
var pemBlock *pem.Block
if len(c.PrivateKey) > 0 {
pemBlock, _ = pem.Decode([]byte(c.PrivateKey))
if pemBlock == nil {
return nil, UserError{"Error decoding private key from cert bundle"}
}
result.PrivateKeyBytes = pemBlock.Bytes
switch c.PrivateKeyType {
case "ec":
result.PrivateKeyType = ECPrivateKey
case "rsa":
result.PrivateKeyType = RSAPrivateKey
default:
// Try to figure it out and correct
if _, err := x509.ParseECPrivateKey(pemBlock.Bytes); err == nil {
result.PrivateKeyType = ECPrivateKey
c.PrivateKeyType = "ec"
} else if _, err := x509.ParsePKCS1PrivateKey(pemBlock.Bytes); err == nil {
result.PrivateKeyType = RSAPrivateKey
c.PrivateKeyType = "rsa"
} else {
return nil, UserError{fmt.Sprintf("Unknown private key type in bundle: %s", c.PrivateKeyType)}
}
}
result.PrivateKey, err = result.getSigner()
if err != nil {
return nil, UserError{fmt.Sprintf("Error getting signer: %s", err)}
}
}
if len(c.CSR) > 0 {
pemBlock, _ = pem.Decode([]byte(c.CSR))
if pemBlock == nil {
return nil, UserError{"Error decoding certificate from cert bundle"}
}
result.CSRBytes = pemBlock.Bytes
result.CSR, err = x509.ParseCertificateRequest(result.CSRBytes)
if err != nil {
return nil, UserError{"Error encountered parsing certificate bytes from raw bundle"}
}
}
return result, nil
}
// GetParsedPrivateKey returns the embedded private key values
func (p *ParsedCSRBundle) GetParsedPrivateKey() *EmbeddedParsedPrivateKey {
return &EmbeddedParsedPrivateKey{
PrivateKeyType: p.PrivateKeyType,
PrivateKey: p.PrivateKey,
PrivateKeyBytes: p.PrivateKeyBytes,
}
}
// SetParsedPrivateKey sets the embedded private key values
func (p *ParsedCSRBundle) SetParsedPrivateKey(emb *EmbeddedParsedPrivateKey) {
p.EmbeddedParsedPrivateKey = *emb
}
// ToCSRBundle converts a byte-based raw DER certificate bundle
// to a PEM-based string certificate bundle
func (p *ParsedCSRBundle) ToCSRBundle() (*CSRBundle, error) {
result := &CSRBundle{}
block := pem.Block{
Type: "CERTIFICATE REQUEST",
}
if p.CSRBytes != nil && len(p.CSRBytes) > 0 {
block.Bytes = p.CSRBytes
result.CSR = strings.TrimSpace(string(pem.EncodeToMemory(&block)))
}
if p.PrivateKeyBytes != nil && len(p.PrivateKeyBytes) > 0 {
block.Bytes = p.PrivateKeyBytes
switch p.PrivateKeyType {
case RSAPrivateKey:
result.PrivateKeyType = "rsa"
block.Type = "RSA PRIVATE KEY"
case ECPrivateKey:
result.PrivateKeyType = "ec"
block.Type = "EC PRIVATE KEY"
default:
return nil, InternalError{"Could not determine private key type when creating block"}
}
result.PrivateKey = strings.TrimSpace(string(pem.EncodeToMemory(&block)))
}
return result, nil
}
// GetSigner returns a crypto.Signer corresponding to the private key
// contained in this ParsedCSRBundle. The Signer contains a Public() function
// for getting the corresponding public. The Signer can also be
// type-converted to private keys
func (e *EmbeddedParsedPrivateKey) getSigner() (crypto.Signer, error) {
var signer crypto.Signer
var err error
if e.PrivateKeyBytes == nil || len(e.PrivateKeyBytes) == 0 {
return nil, UserError{"given parsed bundle does not have private key information"}
}
switch e.PrivateKeyType {
case ECPrivateKey:
signer, err = x509.ParseECPrivateKey(e.PrivateKeyBytes)
if err != nil {
return nil, UserError{fmt.Sprintf("unable to parse EC key: %s", err)}
}
case RSAPrivateKey:
signer, err = x509.ParsePKCS1PrivateKey(e.PrivateKeyBytes)
if err != nil {
return nil, UserError{fmt.Sprintf("Unable to parse RSA key: %s", err)}
}
default:
return nil, UserError{"unable to determine type of private key; only RSA and EC are supported"}
}
return signer, nil
}
// IssueData is a structure that is suitable for marshaling into a request;
// either via JSON, or into a map[string]interface{} via the structs package
type IssueData struct {