40 lines
868 B
Go
40 lines
868 B
Go
package did
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import (
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"errors"
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crypto "github.com/libp2p/go-libp2p/core/crypto"
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"github.com/libp2p/go-libp2p/core/crypto/pb"
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"github.com/multiformats/go-multicodec"
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"github.com/multiformats/go-varint"
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)
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func FromPrivKey(privKey crypto.PrivKey) (DID, error) {
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return FromPubKey(privKey.GetPublic())
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}
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func FromPubKey(pubKey crypto.PubKey) (DID, error) {
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code, ok := map[pb.KeyType]multicodec.Code{
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pb.KeyType_Ed25519: multicodec.Ed25519Pub,
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pb.KeyType_RSA: multicodec.RsaPub,
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pb.KeyType_Secp256k1: multicodec.Secp256k1Pub,
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pb.KeyType_ECDSA: multicodec.Es256,
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}[pubKey.Type()]
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if !ok {
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return Undef, errors.New("Blah")
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}
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buf := varint.ToUvarint(uint64(code))
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pubBytes, err := pubKey.Raw()
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if err != nil {
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return Undef, err
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}
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return DID{
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str: string(append(buf, pubBytes...)),
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code: uint64(code),
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key: true,
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}, nil
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}
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