mirror of
https://github.com/vbatts/go-mtree.git
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vendor: glide update
Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
This commit is contained in:
parent
53e54ea2f7
commit
8d3cf7ea39
GPG key ID:
10937E57733F1362
322 changed files with 47691 additions and 5542 deletions
190
vendor/golang.org/x/crypto/openpgp/write.go
generated
vendored
190
vendor/golang.org/x/crypto/openpgp/write.go
generated
vendored
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@ -6,14 +6,15 @@ package openpgp
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import (
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"crypto"
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"golang.org/x/crypto/openpgp/armor"
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"golang.org/x/crypto/openpgp/errors"
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"golang.org/x/crypto/openpgp/packet"
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"golang.org/x/crypto/openpgp/s2k"
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"hash"
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"io"
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"strconv"
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"time"
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"golang.org/x/crypto/openpgp/armor"
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"golang.org/x/crypto/openpgp/errors"
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"golang.org/x/crypto/openpgp/packet"
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"golang.org/x/crypto/openpgp/s2k"
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)
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// DetachSign signs message with the private key from signer (which must
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@ -163,12 +164,12 @@ func hashToHashId(h crypto.Hash) uint8 {
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return v
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}
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// Encrypt encrypts a message to a number of recipients and, optionally, signs
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// it. hints contains optional information, that is also encrypted, that aids
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// the recipients in processing the message. The resulting WriteCloser must
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// be closed after the contents of the file have been written.
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// If config is nil, sensible defaults will be used.
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func Encrypt(ciphertext io.Writer, to []*Entity, signed *Entity, hints *FileHints, config *packet.Config) (plaintext io.WriteCloser, err error) {
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// writeAndSign writes the data as a payload package and, optionally, signs
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// it. hints contains optional information, that is also encrypted,
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// that aids the recipients in processing the message. The resulting
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// WriteCloser must be closed after the contents of the file have been
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// written. If config is nil, sensible defaults will be used.
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func writeAndSign(payload io.WriteCloser, candidateHashes []uint8, signed *Entity, hints *FileHints, config *packet.Config) (plaintext io.WriteCloser, err error) {
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var signer *packet.PrivateKey
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if signed != nil {
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signKey, ok := signed.signingKey(config.Now())
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@ -176,11 +177,91 @@ func Encrypt(ciphertext io.Writer, to []*Entity, signed *Entity, hints *FileHint
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return nil, errors.InvalidArgumentError("no valid signing keys")
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}
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signer = signKey.PrivateKey
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if signer == nil {
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return nil, errors.InvalidArgumentError("no private key in signing key")
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}
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if signer.Encrypted {
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return nil, errors.InvalidArgumentError("signing key must be decrypted")
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}
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}
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var hash crypto.Hash
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for _, hashId := range candidateHashes {
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if h, ok := s2k.HashIdToHash(hashId); ok && h.Available() {
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hash = h
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break
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}
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}
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// If the hash specified by config is a candidate, we'll use that.
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if configuredHash := config.Hash(); configuredHash.Available() {
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for _, hashId := range candidateHashes {
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if h, ok := s2k.HashIdToHash(hashId); ok && h == configuredHash {
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hash = h
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break
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}
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}
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}
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if hash == 0 {
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hashId := candidateHashes[0]
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name, ok := s2k.HashIdToString(hashId)
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if !ok {
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name = "#" + strconv.Itoa(int(hashId))
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}
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return nil, errors.InvalidArgumentError("cannot encrypt because no candidate hash functions are compiled in. (Wanted " + name + " in this case.)")
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}
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if signer != nil {
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ops := &packet.OnePassSignature{
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SigType: packet.SigTypeBinary,
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Hash: hash,
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PubKeyAlgo: signer.PubKeyAlgo,
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KeyId: signer.KeyId,
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IsLast: true,
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}
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if err := ops.Serialize(payload); err != nil {
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return nil, err
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}
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}
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if hints == nil {
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hints = &FileHints{}
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}
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w := payload
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if signer != nil {
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// If we need to write a signature packet after the literal
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// data then we need to stop literalData from closing
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// encryptedData.
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w = noOpCloser{w}
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}
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var epochSeconds uint32
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if !hints.ModTime.IsZero() {
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epochSeconds = uint32(hints.ModTime.Unix())
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}
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literalData, err := packet.SerializeLiteral(w, hints.IsBinary, hints.FileName, epochSeconds)
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if err != nil {
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return nil, err
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}
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if signer != nil {
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return signatureWriter{payload, literalData, hash, hash.New(), signer, config}, nil
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}
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return literalData, nil
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}
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// Encrypt encrypts a message to a number of recipients and, optionally, signs
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// it. hints contains optional information, that is also encrypted, that aids
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// the recipients in processing the message. The resulting WriteCloser must
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// be closed after the contents of the file have been written.
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// If config is nil, sensible defaults will be used.
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func Encrypt(ciphertext io.Writer, to []*Entity, signed *Entity, hints *FileHints, config *packet.Config) (plaintext io.WriteCloser, err error) {
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if len(to) == 0 {
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return nil, errors.InvalidArgumentError("no encryption recipient provided")
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}
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// These are the possible ciphers that we'll use for the message.
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candidateCiphers := []uint8{
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uint8(packet.CipherAES128),
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@ -190,6 +271,7 @@ func Encrypt(ciphertext io.Writer, to []*Entity, signed *Entity, hints *FileHint
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// These are the possible hash functions that we'll use for the signature.
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candidateHashes := []uint8{
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hashToHashId(crypto.SHA256),
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hashToHashId(crypto.SHA384),
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hashToHashId(crypto.SHA512),
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hashToHashId(crypto.SHA1),
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hashToHashId(crypto.RIPEMD160),
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@ -227,7 +309,7 @@ func Encrypt(ciphertext io.Writer, to []*Entity, signed *Entity, hints *FileHint
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}
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cipher := packet.CipherFunction(candidateCiphers[0])
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// If the cipher specifed by config is a candidate, we'll use that.
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// If the cipher specified by config is a candidate, we'll use that.
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configuredCipher := config.Cipher()
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for _, c := range candidateCiphers {
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cipherFunc := packet.CipherFunction(c)
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@ -237,33 +319,6 @@ func Encrypt(ciphertext io.Writer, to []*Entity, signed *Entity, hints *FileHint
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}
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}
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var hash crypto.Hash
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for _, hashId := range candidateHashes {
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if h, ok := s2k.HashIdToHash(hashId); ok && h.Available() {
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hash = h
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break
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}
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}
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// If the hash specified by config is a candidate, we'll use that.
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if configuredHash := config.Hash(); configuredHash.Available() {
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for _, hashId := range candidateHashes {
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if h, ok := s2k.HashIdToHash(hashId); ok && h == configuredHash {
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hash = h
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break
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}
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}
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}
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if hash == 0 {
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hashId := candidateHashes[0]
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name, ok := s2k.HashIdToString(hashId)
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if !ok {
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name = "#" + strconv.Itoa(int(hashId))
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}
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return nil, errors.InvalidArgumentError("cannot encrypt because no candidate hash functions are compiled in. (Wanted " + name + " in this case.)")
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}
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symKey := make([]byte, cipher.KeySize())
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if _, err := io.ReadFull(config.Random(), symKey); err != nil {
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return nil, err
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@ -275,49 +330,38 @@ func Encrypt(ciphertext io.Writer, to []*Entity, signed *Entity, hints *FileHint
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}
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}
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encryptedData, err := packet.SerializeSymmetricallyEncrypted(ciphertext, cipher, symKey, config)
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payload, err := packet.SerializeSymmetricallyEncrypted(ciphertext, cipher, symKey, config)
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if err != nil {
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return
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}
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if signer != nil {
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ops := &packet.OnePassSignature{
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SigType: packet.SigTypeBinary,
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Hash: hash,
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PubKeyAlgo: signer.PubKeyAlgo,
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KeyId: signer.KeyId,
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IsLast: true,
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}
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if err := ops.Serialize(encryptedData); err != nil {
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return nil, err
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}
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return writeAndSign(payload, candidateHashes, signed, hints, config)
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}
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// Sign signs a message. The resulting WriteCloser must be closed after the
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// contents of the file have been written. hints contains optional information
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// that aids the recipients in processing the message.
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// If config is nil, sensible defaults will be used.
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func Sign(output io.Writer, signed *Entity, hints *FileHints, config *packet.Config) (input io.WriteCloser, err error) {
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if signed == nil {
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return nil, errors.InvalidArgumentError("no signer provided")
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}
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if hints == nil {
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hints = &FileHints{}
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// These are the possible hash functions that we'll use for the signature.
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candidateHashes := []uint8{
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hashToHashId(crypto.SHA256),
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hashToHashId(crypto.SHA384),
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hashToHashId(crypto.SHA512),
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hashToHashId(crypto.SHA1),
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hashToHashId(crypto.RIPEMD160),
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}
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w := encryptedData
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if signer != nil {
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// If we need to write a signature packet after the literal
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// data then we need to stop literalData from closing
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// encryptedData.
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w = noOpCloser{encryptedData}
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defaultHashes := candidateHashes[len(candidateHashes)-1:]
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preferredHashes := signed.primaryIdentity().SelfSignature.PreferredHash
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if len(preferredHashes) == 0 {
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preferredHashes = defaultHashes
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}
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var epochSeconds uint32
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if !hints.ModTime.IsZero() {
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epochSeconds = uint32(hints.ModTime.Unix())
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}
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literalData, err := packet.SerializeLiteral(w, hints.IsBinary, hints.FileName, epochSeconds)
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if err != nil {
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return nil, err
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}
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if signer != nil {
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return signatureWriter{encryptedData, literalData, hash, hash.New(), signer, config}, nil
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}
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return literalData, nil
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candidateHashes = intersectPreferences(candidateHashes, preferredHashes)
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return writeAndSign(noOpCloser{output}, candidateHashes, signed, hints, config)
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}
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// signatureWriter hashes the contents of a message while passing it along to
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