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1package atproto
2
3import (
4 "crypto"
5 "crypto/ecdsa"
6 "crypto/elliptic"
7 "fmt"
8
9 atcrypto "github.com/bluesky-social/indigo/atproto/crypto"
10 ethcrypto "github.com/ethereum/go-ethereum/crypto"
11)
12
13func ParsePubKey(pub crypto.PublicKey) (*atcrypto.PublicKeyK256, error) {
14 ecdsaPub, ok := pub.(*ecdsa.PublicKey)
15 if !ok {
16 return nil, fmt.Errorf("public key is not an ECDSA public key")
17 }
18
19 publicKeyBytes := elliptic.Marshal(ethcrypto.S256(), ecdsaPub.X, ecdsaPub.Y) //nolint:all
20 atkey, err := atcrypto.ParsePublicUncompressedBytesK256(publicKeyBytes)
21 if err != nil {
22 return nil, err
23 }
24 return atkey, nil
25}