435c0d9fc8
This PR switches the Nomad repository from using govendor to Go modules for managing dependencies. Aspects of the Nomad workflow remain pretty much the same. The usual Makefile targets should continue to work as they always did. The API submodule simply defers to the parent Nomad version on the repository, keeping the semantics of API versioning that currently exists.
102 lines
2.4 KiB
Go
102 lines
2.4 KiB
Go
package jwt
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import (
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"crypto/rsa"
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"crypto/x509"
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"encoding/pem"
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"errors"
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)
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var (
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ErrKeyMustBePEMEncoded = errors.New("Invalid Key: Key must be PEM encoded PKCS1 or PKCS8 private key")
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ErrNotRSAPrivateKey = errors.New("Key is not a valid RSA private key")
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ErrNotRSAPublicKey = errors.New("Key is not a valid RSA public key")
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)
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// Parse PEM encoded PKCS1 or PKCS8 private key
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func ParseRSAPrivateKeyFromPEM(key []byte) (*rsa.PrivateKey, error) {
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var err error
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// Parse PEM block
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var block *pem.Block
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if block, _ = pem.Decode(key); block == nil {
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return nil, ErrKeyMustBePEMEncoded
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}
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var parsedKey interface{}
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if parsedKey, err = x509.ParsePKCS1PrivateKey(block.Bytes); err != nil {
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if parsedKey, err = x509.ParsePKCS8PrivateKey(block.Bytes); err != nil {
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return nil, err
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}
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}
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var pkey *rsa.PrivateKey
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var ok bool
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if pkey, ok = parsedKey.(*rsa.PrivateKey); !ok {
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return nil, ErrNotRSAPrivateKey
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}
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return pkey, nil
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}
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// Parse PEM encoded PKCS1 or PKCS8 private key protected with password
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func ParseRSAPrivateKeyFromPEMWithPassword(key []byte, password string) (*rsa.PrivateKey, error) {
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var err error
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// Parse PEM block
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var block *pem.Block
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if block, _ = pem.Decode(key); block == nil {
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return nil, ErrKeyMustBePEMEncoded
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}
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var parsedKey interface{}
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var blockDecrypted []byte
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if blockDecrypted, err = x509.DecryptPEMBlock(block, []byte(password)); err != nil {
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return nil, err
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}
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if parsedKey, err = x509.ParsePKCS1PrivateKey(blockDecrypted); err != nil {
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if parsedKey, err = x509.ParsePKCS8PrivateKey(blockDecrypted); err != nil {
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return nil, err
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}
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}
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var pkey *rsa.PrivateKey
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var ok bool
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if pkey, ok = parsedKey.(*rsa.PrivateKey); !ok {
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return nil, ErrNotRSAPrivateKey
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}
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return pkey, nil
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}
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// Parse PEM encoded PKCS1 or PKCS8 public key
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func ParseRSAPublicKeyFromPEM(key []byte) (*rsa.PublicKey, error) {
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var err error
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// Parse PEM block
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var block *pem.Block
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if block, _ = pem.Decode(key); block == nil {
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return nil, ErrKeyMustBePEMEncoded
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}
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// Parse the key
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var parsedKey interface{}
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if parsedKey, err = x509.ParsePKIXPublicKey(block.Bytes); err != nil {
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if cert, err := x509.ParseCertificate(block.Bytes); err == nil {
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parsedKey = cert.PublicKey
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} else {
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return nil, err
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}
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}
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var pkey *rsa.PublicKey
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var ok bool
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if pkey, ok = parsedKey.(*rsa.PublicKey); !ok {
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return nil, ErrNotRSAPublicKey
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}
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return pkey, nil
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}
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