diff options
Diffstat (limited to 'vendor/github.com/rsc/letsencrypt/vendor/github.com/miekg/dns/dnssec_keyscan.go')
| -rw-r--r-- | vendor/github.com/rsc/letsencrypt/vendor/github.com/miekg/dns/dnssec_keyscan.go | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/vendor/github.com/rsc/letsencrypt/vendor/github.com/miekg/dns/dnssec_keyscan.go b/vendor/github.com/rsc/letsencrypt/vendor/github.com/miekg/dns/dnssec_keyscan.go deleted file mode 100644 index 4f8d830b8..000000000 --- a/vendor/github.com/rsc/letsencrypt/vendor/github.com/miekg/dns/dnssec_keyscan.go +++ /dev/null @@ -1,249 +0,0 @@ -package dns - -import ( - "crypto" - "crypto/dsa" - "crypto/ecdsa" - "crypto/rsa" - "io" - "math/big" - "strconv" - "strings" -) - -// NewPrivateKey returns a PrivateKey by parsing the string s. -// s should be in the same form of the BIND private key files. -func (k *DNSKEY) NewPrivateKey(s string) (crypto.PrivateKey, error) { - if s == "" || s[len(s)-1] != '\n' { // We need a closing newline - return k.ReadPrivateKey(strings.NewReader(s+"\n"), "") - } - return k.ReadPrivateKey(strings.NewReader(s), "") -} - -// ReadPrivateKey reads a private key from the io.Reader q. The string file is -// only used in error reporting. -// The public key must be known, because some cryptographic algorithms embed -// the public inside the privatekey. -func (k *DNSKEY) ReadPrivateKey(q io.Reader, file string) (crypto.PrivateKey, error) { - m, err := parseKey(q, file) - if m == nil { - return nil, err - } - if _, ok := m["private-key-format"]; !ok { - return nil, ErrPrivKey - } - if m["private-key-format"] != "v1.2" && m["private-key-format"] != "v1.3" { - return nil, ErrPrivKey - } - // TODO(mg): check if the pubkey matches the private key - algo, err := strconv.ParseUint(strings.SplitN(m["algorithm"], " ", 2)[0], 10, 8) - if err != nil { - return nil, ErrPrivKey - } - switch uint8(algo) { - case DSA: - priv, err := readPrivateKeyDSA(m) - if err != nil { - return nil, err - } - pub := k.publicKeyDSA() - if pub == nil { - return nil, ErrKey - } - priv.PublicKey = *pub - return priv, nil - case RSAMD5: - fallthrough - case RSASHA1: - fallthrough - case RSASHA1NSEC3SHA1: - fallthrough - case RSASHA256: - fallthrough - case RSASHA512: - priv, err := readPrivateKeyRSA(m) - if err != nil { - return nil, err - } - pub := k.publicKeyRSA() - if pub == nil { - return nil, ErrKey - } - priv.PublicKey = *pub - return priv, nil - case ECCGOST: - return nil, ErrPrivKey - case ECDSAP256SHA256: - fallthrough - case ECDSAP384SHA384: - priv, err := readPrivateKeyECDSA(m) - if err != nil { - return nil, err - } - pub := k.publicKeyECDSA() - if pub == nil { - return nil, ErrKey - } - priv.PublicKey = *pub - return priv, nil - default: - return nil, ErrPrivKey - } -} - -// Read a private key (file) string and create a public key. Return the private key. -func readPrivateKeyRSA(m map[string]string) (*rsa.PrivateKey, error) { - p := new(rsa.PrivateKey) - p.Primes = []*big.Int{nil, nil} - for k, v := range m { - switch k { - case "modulus", "publicexponent", "privateexponent", "prime1", "prime2": - v1, err := fromBase64([]byte(v)) - if err != nil { - return nil, err - } - switch k { - case "modulus": - p.PublicKey.N = big.NewInt(0) - p.PublicKey.N.SetBytes(v1) - case "publicexponent": - i := big.NewInt(0) - i.SetBytes(v1) - p.PublicKey.E = int(i.Int64()) // int64 should be large enough - case "privateexponent": - p.D = big.NewInt(0) - p.D.SetBytes(v1) - case "prime1": - p.Primes[0] = big.NewInt(0) - p.Primes[0].SetBytes(v1) - case "prime2": - p.Primes[1] = big.NewInt(0) - p.Primes[1].SetBytes(v1) - } - case "exponent1", "exponent2", "coefficient": - // not used in Go (yet) - case "created", "publish", "activate": - // not used in Go (yet) - } - } - return p, nil -} - -func readPrivateKeyDSA(m map[string]string) (*dsa.PrivateKey, error) { - p := new(dsa.PrivateKey) - p.X = big.NewInt(0) - for k, v := range m { - switch k { - case "private_value(x)": - v1, err := fromBase64([]byte(v)) - if err != nil { - return nil, err - } - p.X.SetBytes(v1) - case "created", "publish", "activate": - /* not used in Go (yet) */ - } - } - return p, nil -} - -func readPrivateKeyECDSA(m map[string]string) (*ecdsa.PrivateKey, error) { - p := new(ecdsa.PrivateKey) - p.D = big.NewInt(0) - // TODO: validate that the required flags are present - for k, v := range m { - switch k { - case "privatekey": - v1, err := fromBase64([]byte(v)) - if err != nil { - return nil, err - } - p.D.SetBytes(v1) - case "created", "publish", "activate": - /* not used in Go (yet) */ - } - } - return p, nil -} - -// parseKey reads a private key from r. It returns a map[string]string, -// with the key-value pairs, or an error when the file is not correct. -func parseKey(r io.Reader, file string) (map[string]string, error) { - s := scanInit(r) - m := make(map[string]string) - c := make(chan lex) - k := "" - // Start the lexer - go klexer(s, c) - for l := range c { - // It should alternate - switch l.value { - case zKey: - k = l.token - case zValue: - if k == "" { - return nil, &ParseError{file, "no private key seen", l} - } - //println("Setting", strings.ToLower(k), "to", l.token, "b") - m[strings.ToLower(k)] = l.token - k = "" - } - } - return m, nil -} - -// klexer scans the sourcefile and returns tokens on the channel c. -func klexer(s *scan, c chan lex) { - var l lex - str := "" // Hold the current read text - commt := false - key := true - x, err := s.tokenText() - defer close(c) - for err == nil { - l.column = s.position.Column - l.line = s.position.Line - switch x { - case ':': - if commt { - break - } - l.token = str - if key { - l.value = zKey - c <- l - // Next token is a space, eat it - s.tokenText() - key = false - str = "" - } else { - l.value = zValue - } - case ';': - commt = true - case '\n': - if commt { - // Reset a comment - commt = false - } - l.value = zValue - l.token = str - c <- l - str = "" - commt = false - key = true - default: - if commt { - break - } - str += string(x) - } - x, err = s.tokenText() - } - if len(str) > 0 { - // Send remainder - l.token = str - l.value = zValue - c <- l - } -} |