forked from greenpau/go-authcrunch
/
methods.go
54 lines (48 loc) · 1.43 KB
/
methods.go
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// Copyright 2022 Paul Greenberg greenpau@outlook.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package kms
import (
"strings"
)
var (
// signingMethods are supported JWT token signing methods.
signingMethods = map[string]string{
"HS256": "hmac",
"HS384": "hmac",
"HS512": "hmac",
"RS256": "rsa",
"RS384": "rsa",
"RS512": "rsa",
"ES256": "ecdsa",
"ES384": "ecdsa",
"ES512": "ecdsa",
}
algoMethodMap = map[string][]string{
"hmac": []string{"HS512", "HS384", "HS256"},
"rsa": []string{"RS512", "RS384", "RS256"},
"ecdsa": []string{"ES512", "ES384", "ES256"},
}
)
// getSigningMethodAlias returns alias for the provided signing method.
func getSigningMethodAlias(s string) string {
s = strings.ToUpper(s)
if v, exists := signingMethods[s]; exists {
arr := strings.SplitN(v, ",", 2)
return strings.TrimSpace(arr[0])
}
return "unknown"
}
func getMethodsPerAlgo(s string) []string {
return algoMethodMap[s]
}