ory-am/hydra

// Copyright © 2022 Ory Corp
// SPDX-License-Identifier: Apache-2.0

package jwk

import (
    "crypto/rsa"

    "github.com/ory/x/josex"

    jose "github.com/go-jose/go-jose/v3"
    "github.com/pkg/errors"
)

func MustRSAPublic(key *jose.JSONWebKey) *rsa.PublicKey {
    res, err := ToRSAPublic(key)
    if err != nil {
        panic(err.Error())
    }

    return res
}

func ToRSAPublic(key *jose.JSONWebKey) (*rsa.PublicKey, error) {
    pk := josex.ToPublicKey(key)
    res, ok := pk.Key.(*rsa.PublicKey)
    if !ok {
        return res, errors.Errorf("Could not convert key to RSA Public Key, got: %T", pk.Key)
    }

    return res, nil
}

func MustRSAPrivate(key *jose.JSONWebKey) *rsa.PrivateKey {
    res, err := ToRSAPrivate(key)
    if err != nil {
        panic(err.Error())
    }

    return res
}

func ToRSAPrivate(key *jose.JSONWebKey) (*rsa.PrivateKey, error) {
    res, ok := key.Key.(*rsa.PrivateKey)
    if !ok {
        return res, errors.New("Could not convert key to RSA Private Key.")
    }

    return res, nil
}