63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
package crypto
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import (
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"crypto"
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"crypto/ed25519"
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"crypto/rand"
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"errors"
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"apigo.cc/go/safe"
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)
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type Ed25519Algorithm struct{}
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var ED25519 = &Ed25519Algorithm{}
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func NewED25519(safePrivateKeyBuf, safePublicKeyBuf *safe.SafeBuf) (*Asymmetric, error) {
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return NewAsymmetric(ED25519, safePrivateKeyBuf, safePublicKeyBuf)
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}
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func NewED25519AndEraseKey(safePrivateKeyBuf, safePublicKeyBuf []byte) (*Asymmetric, error) {
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return NewAsymmetricAndEraseKey(ED25519, safePrivateKeyBuf, safePublicKeyBuf)
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}
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func NewED25519WithOutEraseKey(safePrivateKeyBuf, safePublicKeyBuf []byte) (*Asymmetric, error) {
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return NewAsymmetricWithoutEraseKey(ED25519, safePrivateKeyBuf, safePublicKeyBuf, false)
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}
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func GenerateEd25519KeyPair() ([]byte, []byte, error) {
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pubKey, privKey, err := ed25519.GenerateKey(rand.Reader)
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if err != nil {
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return nil, nil, err
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}
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return privKey, pubKey, nil
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}
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func (e *Ed25519Algorithm) ParsePrivateKey(der []byte) (any, error) {
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if len(der) != ed25519.PrivateKeySize {
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return nil, errors.New("invalid Ed25519 private key size")
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}
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return ed25519.PrivateKey(der), nil
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}
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func (e *Ed25519Algorithm) ParsePublicKey(der []byte) (any, error) {
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if len(der) != ed25519.PublicKeySize {
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return nil, errors.New("invalid Ed25519 public key size")
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}
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return ed25519.PublicKey(der), nil
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}
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func (e *Ed25519Algorithm) Sign(privateKeyObj any, data []byte, hash ...crypto.Hash) ([]byte, error) {
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privKey, ok := privateKeyObj.(ed25519.PrivateKey)
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if !ok {
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return nil, errors.New("invalid private key type for Ed25519")
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}
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return ed25519.Sign(privKey, data), nil
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}
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func (e *Ed25519Algorithm) Verify(publicKeyObj any, data []byte, signature []byte, hash ...crypto.Hash) (bool, error) {
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pubKey, ok := publicKeyObj.(ed25519.PublicKey)
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if !ok {
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return false, errors.New("invalid public key type for Ed25519")
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}
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return ed25519.Verify(pubKey, data, signature), nil
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}
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