mirror of
https://github.com/elyby/chrly.git
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6f148a8791
Implemented /signing-key endpoint to get public key in der format, used to sign the textures. Improved logging of errors from http package. Changed behavior of the /cloaks endpoint
43 lines
783 B
Go
43 lines
783 B
Go
package signer
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import (
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"crypto"
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"crypto/rand"
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"crypto/rsa"
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"crypto/sha1"
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"encoding/base64"
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"errors"
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)
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var randomReader = rand.Reader
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type Signer struct {
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Key *rsa.PrivateKey
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}
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func (s *Signer) SignTextures(textures string) (string, error) {
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if s.Key == nil {
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return "", errors.New("Key is empty")
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}
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message := []byte(textures)
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messageHash := sha1.New()
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_, _ = messageHash.Write(message)
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messageHashSum := messageHash.Sum(nil)
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signature, err := rsa.SignPKCS1v15(randomReader, s.Key, crypto.SHA1, messageHashSum)
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if err != nil {
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panic(err)
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}
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return base64.StdEncoding.EncodeToString(signature), nil
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}
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func (s *Signer) GetPublicKey() (*rsa.PublicKey, error) {
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if s.Key == nil {
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return nil, errors.New("Key is empty")
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}
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return &s.Key.PublicKey, nil
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}
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