diff options
| author | YDBot <[email protected]> | 2026-06-10 06:27:27 +0000 |
|---|---|---|
| committer | YDBot <[email protected]> | 2026-06-10 06:27:27 +0000 |
| commit | eb8c7d3ee0c13034ecf5d8d35c24cefc40f0bb3f (patch) | |
| tree | a1eba7fec49a258bb24bfa77808233496ac0047f /contrib/go/_std_1.25/src/crypto/ed25519 | |
| parent | c4011885693f041c96b035f368aae8a1baac8885 (diff) | |
| parent | 72cfbf8958fa6fa5227e9ad6466abfc635fdeb15 (diff) | |
Diffstat (limited to 'contrib/go/_std_1.25/src/crypto/ed25519')
| -rw-r--r-- | contrib/go/_std_1.25/src/crypto/ed25519/ed25519.go | 242 | ||||
| -rw-r--r-- | contrib/go/_std_1.25/src/crypto/ed25519/ya.make | 12 |
2 files changed, 0 insertions, 254 deletions
diff --git a/contrib/go/_std_1.25/src/crypto/ed25519/ed25519.go b/contrib/go/_std_1.25/src/crypto/ed25519/ed25519.go deleted file mode 100644 index 0e268139587..00000000000 --- a/contrib/go/_std_1.25/src/crypto/ed25519/ed25519.go +++ /dev/null @@ -1,242 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package ed25519 implements the Ed25519 signature algorithm. See -// https://ed25519.cr.yp.to/. -// -// These functions are also compatible with the “Ed25519” function defined in -// RFC 8032. However, unlike RFC 8032's formulation, this package's private key -// representation includes a public key suffix to make multiple signing -// operations with the same key more efficient. This package refers to the RFC -// 8032 private key as the “seed”. -// -// Operations involving private keys are implemented using constant-time -// algorithms. -package ed25519 - -import ( - "crypto" - "crypto/internal/fips140/ed25519" - "crypto/internal/fips140cache" - "crypto/internal/fips140only" - cryptorand "crypto/rand" - "crypto/subtle" - "errors" - "io" - "strconv" -) - -const ( - // PublicKeySize is the size, in bytes, of public keys as used in this package. - PublicKeySize = 32 - // PrivateKeySize is the size, in bytes, of private keys as used in this package. - PrivateKeySize = 64 - // SignatureSize is the size, in bytes, of signatures generated and verified by this package. - SignatureSize = 64 - // SeedSize is the size, in bytes, of private key seeds. These are the private key representations used by RFC 8032. - SeedSize = 32 -) - -// PublicKey is the type of Ed25519 public keys. -type PublicKey []byte - -// Any methods implemented on PublicKey might need to also be implemented on -// PrivateKey, as the latter embeds the former and will expose its methods. - -// Equal reports whether pub and x have the same value. -func (pub PublicKey) Equal(x crypto.PublicKey) bool { - xx, ok := x.(PublicKey) - if !ok { - return false - } - return subtle.ConstantTimeCompare(pub, xx) == 1 -} - -// PrivateKey is the type of Ed25519 private keys. It implements [crypto.Signer]. -type PrivateKey []byte - -// Public returns the [PublicKey] corresponding to priv. -func (priv PrivateKey) Public() crypto.PublicKey { - publicKey := make([]byte, PublicKeySize) - copy(publicKey, priv[32:]) - return PublicKey(publicKey) -} - -// Equal reports whether priv and x have the same value. -func (priv PrivateKey) Equal(x crypto.PrivateKey) bool { - xx, ok := x.(PrivateKey) - if !ok { - return false - } - return subtle.ConstantTimeCompare(priv, xx) == 1 -} - -// Seed returns the private key seed corresponding to priv. It is provided for -// interoperability with RFC 8032. RFC 8032's private keys correspond to seeds -// in this package. -func (priv PrivateKey) Seed() []byte { - return append(make([]byte, 0, SeedSize), priv[:SeedSize]...) -} - -// privateKeyCache uses a pointer to the first byte of underlying storage as a -// key, because [PrivateKey] is a slice header passed around by value. -var privateKeyCache fips140cache.Cache[byte, ed25519.PrivateKey] - -// Sign signs the given message with priv. rand is ignored and can be nil. -// -// If opts.HashFunc() is [crypto.SHA512], the pre-hashed variant Ed25519ph is used -// and message is expected to be a SHA-512 hash, otherwise opts.HashFunc() must -// be [crypto.Hash](0) and the message must not be hashed, as Ed25519 performs two -// passes over messages to be signed. -// -// A value of type [Options] can be used as opts, or crypto.Hash(0) or -// crypto.SHA512 directly to select plain Ed25519 or Ed25519ph, respectively. -func (priv PrivateKey) Sign(rand io.Reader, message []byte, opts crypto.SignerOpts) (signature []byte, err error) { - k, err := privateKeyCache.Get(&priv[0], func() (*ed25519.PrivateKey, error) { - return ed25519.NewPrivateKey(priv) - }, func(k *ed25519.PrivateKey) bool { - return subtle.ConstantTimeCompare(priv, k.Bytes()) == 1 - }) - if err != nil { - return nil, err - } - hash := opts.HashFunc() - context := "" - if opts, ok := opts.(*Options); ok { - context = opts.Context - } - switch { - case hash == crypto.SHA512: // Ed25519ph - return ed25519.SignPH(k, message, context) - case hash == crypto.Hash(0) && context != "": // Ed25519ctx - if fips140only.Enabled { - return nil, errors.New("crypto/ed25519: use of Ed25519ctx is not allowed in FIPS 140-only mode") - } - return ed25519.SignCtx(k, message, context) - case hash == crypto.Hash(0): // Ed25519 - return ed25519.Sign(k, message), nil - default: - return nil, errors.New("ed25519: expected opts.HashFunc() zero (unhashed message, for standard Ed25519) or SHA-512 (for Ed25519ph)") - } -} - -// Options can be used with [PrivateKey.Sign] or [VerifyWithOptions] -// to select Ed25519 variants. -type Options struct { - // Hash can be zero for regular Ed25519, or crypto.SHA512 for Ed25519ph. - Hash crypto.Hash - - // Context, if not empty, selects Ed25519ctx or provides the context string - // for Ed25519ph. It can be at most 255 bytes in length. - Context string -} - -// HashFunc returns o.Hash. -func (o *Options) HashFunc() crypto.Hash { return o.Hash } - -// GenerateKey generates a public/private key pair using entropy from rand. -// If rand is nil, [crypto/rand.Reader] will be used. -// -// The output of this function is deterministic, and equivalent to reading -// [SeedSize] bytes from rand, and passing them to [NewKeyFromSeed]. -func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) { - if rand == nil { - rand = cryptorand.Reader - } - - seed := make([]byte, SeedSize) - if _, err := io.ReadFull(rand, seed); err != nil { - return nil, nil, err - } - - privateKey := NewKeyFromSeed(seed) - publicKey := privateKey.Public().(PublicKey) - return publicKey, privateKey, nil -} - -// NewKeyFromSeed calculates a private key from a seed. It will panic if -// len(seed) is not [SeedSize]. This function is provided for interoperability -// with RFC 8032. RFC 8032's private keys correspond to seeds in this -// package. -func NewKeyFromSeed(seed []byte) PrivateKey { - // Outline the function body so that the returned key can be stack-allocated. - privateKey := make([]byte, PrivateKeySize) - newKeyFromSeed(privateKey, seed) - return privateKey -} - -func newKeyFromSeed(privateKey, seed []byte) { - k, err := ed25519.NewPrivateKeyFromSeed(seed) - if err != nil { - // NewPrivateKeyFromSeed only returns an error if the seed length is incorrect. - panic("ed25519: bad seed length: " + strconv.Itoa(len(seed))) - } - copy(privateKey, k.Bytes()) -} - -// Sign signs the message with privateKey and returns a signature. It will -// panic if len(privateKey) is not [PrivateKeySize]. -func Sign(privateKey PrivateKey, message []byte) []byte { - // Outline the function body so that the returned signature can be - // stack-allocated. - signature := make([]byte, SignatureSize) - sign(signature, privateKey, message) - return signature -} - -func sign(signature []byte, privateKey PrivateKey, message []byte) { - k, err := privateKeyCache.Get(&privateKey[0], func() (*ed25519.PrivateKey, error) { - return ed25519.NewPrivateKey(privateKey) - }, func(k *ed25519.PrivateKey) bool { - return subtle.ConstantTimeCompare(privateKey, k.Bytes()) == 1 - }) - if err != nil { - panic("ed25519: bad private key: " + err.Error()) - } - sig := ed25519.Sign(k, message) - copy(signature, sig) -} - -// Verify reports whether sig is a valid signature of message by publicKey. It -// will panic if len(publicKey) is not [PublicKeySize]. -// -// The inputs are not considered confidential, and may leak through timing side -// channels, or if an attacker has control of part of the inputs. -func Verify(publicKey PublicKey, message, sig []byte) bool { - return VerifyWithOptions(publicKey, message, sig, &Options{Hash: crypto.Hash(0)}) == nil -} - -// VerifyWithOptions reports whether sig is a valid signature of message by -// publicKey. A valid signature is indicated by returning a nil error. It will -// panic if len(publicKey) is not [PublicKeySize]. -// -// If opts.Hash is [crypto.SHA512], the pre-hashed variant Ed25519ph is used and -// message is expected to be a SHA-512 hash, otherwise opts.Hash must be -// [crypto.Hash](0) and the message must not be hashed, as Ed25519 performs two -// passes over messages to be signed. -// -// The inputs are not considered confidential, and may leak through timing side -// channels, or if an attacker has control of part of the inputs. -func VerifyWithOptions(publicKey PublicKey, message, sig []byte, opts *Options) error { - if l := len(publicKey); l != PublicKeySize { - panic("ed25519: bad public key length: " + strconv.Itoa(l)) - } - k, err := ed25519.NewPublicKey(publicKey) - if err != nil { - return err - } - switch { - case opts.Hash == crypto.SHA512: // Ed25519ph - return ed25519.VerifyPH(k, message, sig, opts.Context) - case opts.Hash == crypto.Hash(0) && opts.Context != "": // Ed25519ctx - if fips140only.Enabled { - return errors.New("crypto/ed25519: use of Ed25519ctx is not allowed in FIPS 140-only mode") - } - return ed25519.VerifyCtx(k, message, sig, opts.Context) - case opts.Hash == crypto.Hash(0): // Ed25519 - return ed25519.Verify(k, message, sig) - default: - return errors.New("ed25519: expected opts.Hash zero (unhashed message, for standard Ed25519) or SHA-512 (for Ed25519ph)") - } -} diff --git a/contrib/go/_std_1.25/src/crypto/ed25519/ya.make b/contrib/go/_std_1.25/src/crypto/ed25519/ya.make deleted file mode 100644 index 7bfd994fa26..00000000000 --- a/contrib/go/_std_1.25/src/crypto/ed25519/ya.make +++ /dev/null @@ -1,12 +0,0 @@ -# THIS FILE IS AUTOGENERATED, DO NOT EDIT !!! -# Generator: ya tool yamaker ym2; contrib/go/_std_{VER}/.yandex_meta/build.ym; contrib/go/yagogen/gen.py -# Docs: https://a.yandex-team.ru/arcadia/devtools/contrib/docs/toolchain_go.md - - -GO_LIBRARY() -IF (OS_DARWIN AND ARCH_ARM64 AND RACE AND CGO_ENABLED OR OS_DARWIN AND ARCH_ARM64 AND RACE AND NOT CGO_ENABLED OR OS_DARWIN AND ARCH_ARM64 AND NOT RACE AND CGO_ENABLED OR OS_DARWIN AND ARCH_ARM64 AND NOT RACE AND NOT CGO_ENABLED OR OS_DARWIN AND ARCH_X86_64 AND RACE AND CGO_ENABLED OR OS_DARWIN AND ARCH_X86_64 AND RACE AND NOT CGO_ENABLED OR OS_DARWIN AND ARCH_X86_64 AND NOT RACE AND CGO_ENABLED OR OS_DARWIN AND ARCH_X86_64 AND NOT RACE AND NOT CGO_ENABLED OR OS_LINUX AND ARCH_AARCH64 AND RACE AND CGO_ENABLED OR OS_LINUX AND ARCH_AARCH64 AND RACE AND NOT CGO_ENABLED OR OS_LINUX AND ARCH_AARCH64 AND NOT RACE AND CGO_ENABLED OR OS_LINUX AND ARCH_AARCH64 AND NOT RACE AND NOT CGO_ENABLED OR OS_LINUX AND ARCH_X86_64 AND RACE AND CGO_ENABLED OR OS_LINUX AND ARCH_X86_64 AND RACE AND NOT CGO_ENABLED OR OS_LINUX AND ARCH_X86_64 AND NOT RACE AND CGO_ENABLED OR OS_LINUX AND ARCH_X86_64 AND NOT RACE AND NOT CGO_ENABLED OR OS_LINUX AND ARCH_ARM6 AND RACE AND CGO_ENABLED OR OS_LINUX AND ARCH_ARM6 AND RACE AND NOT CGO_ENABLED OR OS_LINUX AND ARCH_ARM6 AND NOT RACE AND CGO_ENABLED OR OS_LINUX AND ARCH_ARM6 AND NOT RACE AND NOT CGO_ENABLED OR OS_LINUX AND ARCH_ARM7 AND RACE AND CGO_ENABLED OR OS_LINUX AND ARCH_ARM7 AND RACE AND NOT CGO_ENABLED OR OS_LINUX AND ARCH_ARM7 AND NOT RACE AND CGO_ENABLED OR OS_LINUX AND ARCH_ARM7 AND NOT RACE AND NOT CGO_ENABLED OR OS_WINDOWS AND ARCH_X86_64 AND RACE AND CGO_ENABLED OR OS_WINDOWS AND ARCH_X86_64 AND RACE AND NOT CGO_ENABLED OR OS_WINDOWS AND ARCH_X86_64 AND NOT RACE AND CGO_ENABLED OR OS_WINDOWS AND ARCH_X86_64 AND NOT RACE AND NOT CGO_ENABLED OR OS_ANDROID AND ARCH_ARM64 AND RACE AND CGO_ENABLED OR OS_ANDROID AND ARCH_ARM64 AND RACE AND NOT CGO_ENABLED OR OS_ANDROID AND ARCH_ARM64 AND NOT RACE AND CGO_ENABLED OR OS_ANDROID AND ARCH_ARM64 AND NOT RACE AND NOT CGO_ENABLED OR OS_EMSCRIPTEN AND ARCH_WASM32 AND RACE AND CGO_ENABLED OR OS_EMSCRIPTEN AND ARCH_WASM32 AND RACE AND NOT CGO_ENABLED OR OS_EMSCRIPTEN AND ARCH_WASM32 AND NOT RACE AND CGO_ENABLED OR OS_EMSCRIPTEN AND ARCH_WASM32 AND NOT RACE AND NOT CGO_ENABLED) - SRCS( - ed25519.go - ) -ENDIF() -END() |
