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32 lines
546 B
32 lines
546 B
3 years ago
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package telegram
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import (
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"crypto/rsa"
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"encoding/pem"
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"github.com/go-faster/errors"
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"github.com/gotd/td/internal/crypto"
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"github.com/gotd/td/tg"
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)
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func parseCDNKeys(keys ...tg.CDNPublicKey) ([]*rsa.PublicKey, error) {
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r := make([]*rsa.PublicKey, 0, len(keys))
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for _, key := range keys {
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block, _ := pem.Decode([]byte(key.PublicKey))
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if block == nil {
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continue
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}
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key, err := crypto.ParseRSA(block.Bytes)
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if err != nil {
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return nil, errors.Wrap(err, "parse RSA from PEM")
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}
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r = append(r, key)
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}
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return r, nil
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}
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