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core/services/keystore/keys/starkkey: move code from chainlink-starkn…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| package starkkey | ||
|
|
||
| import ( | ||
| crypto_rand "crypto/rand" | ||
| "encoding/hex" | ||
| "fmt" | ||
| "io" | ||
| "math/big" | ||
|
|
||
| "github.com/smartcontractkit/caigo" | ||
| ) | ||
|
|
||
| // Raw represents the Stark private key | ||
| type Raw []byte | ||
|
|
||
| // Key gets the Key | ||
| func (raw Raw) Key() Key { | ||
| k := Key{} | ||
| var err error | ||
|
|
||
| k.priv = new(big.Int).SetBytes(raw) | ||
| k.pub.X, k.pub.Y, err = caigo.Curve.PrivateToPoint(k.priv) | ||
| if err != nil { | ||
| panic(err) // key not generated | ||
| } | ||
| return k | ||
| } | ||
|
|
||
| // String returns description | ||
| func (raw Raw) String() string { | ||
| return "<Starknet Raw Private Key>" | ||
| } | ||
|
|
||
| // GoString wraps String() | ||
| func (raw Raw) GoString() string { | ||
| return raw.String() | ||
| } | ||
|
|
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| var _ fmt.GoStringer = &Key{} | ||
|
|
||
| type PublicKey struct { | ||
| X, Y *big.Int | ||
| } | ||
|
|
||
| // Key represents Starknet key | ||
| type Key struct { | ||
| priv *big.Int | ||
| pub PublicKey | ||
| } | ||
|
|
||
| // New creates new Key | ||
| func New() (Key, error) { | ||
| return newFrom(crypto_rand.Reader) | ||
| } | ||
|
|
||
| // MustNewInsecure return Key if no error | ||
| func MustNewInsecure(reader io.Reader) Key { | ||
| key, err := newFrom(reader) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| return key | ||
| } | ||
|
|
||
| func newFrom(reader io.Reader) (Key, error) { | ||
| return GenerateKey(reader) | ||
| } | ||
|
|
||
| // ID gets Key ID | ||
| func (key Key) ID() string { | ||
| return key.StarkKeyStr() | ||
| } | ||
|
|
||
| // StarkKeyStr is the starknet public key associated to the private key | ||
| // it is the X component of the ECDSA pubkey and used in the deployment of the account contract | ||
| // this func is used in exporting it via CLI and API | ||
| func (key Key) StarkKeyStr() string { | ||
| return "0x" + hex.EncodeToString(PubKeyToStarkKey(key.pub)) | ||
| } | ||
|
|
||
| // Raw from private key | ||
| func (key Key) Raw() Raw { | ||
| return key.priv.Bytes() | ||
| } | ||
|
|
||
| // String is the print-friendly format of the Key | ||
| func (key Key) String() string { | ||
| return fmt.Sprintf("StarknetKey{PrivateKey: <redacted>, StarkKey: %s}", key.StarkKeyStr()) | ||
| } | ||
|
|
||
| // GoString wraps String() | ||
| func (key Key) GoString() string { | ||
| return key.String() | ||
| } | ||
|
|
||
| // ToPrivKey returns the key usable for signing. | ||
| func (key Key) ToPrivKey() *big.Int { | ||
| return key.priv | ||
| } | ||
|
|
||
| // PublicKey copies public key object | ||
| func (key Key) PublicKey() PublicKey { | ||
| return key.pub | ||
| } |
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