forked from mirror/jwt
32 lines
792 B
Go
32 lines
792 B
Go
package jwt
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import (
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"errors"
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"fmt"
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)
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var signingMethods = map[string]func() SigningMethod{}
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// Signing method
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type SigningMethod interface {
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Verify(signingString, signature string, key []byte) error
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Sign(signingString string, key []byte)(string, error)
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Alg() string
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}
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// Register the "alg" name and a factory function for signing method.
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// This is typically done during init() in the method's implementation
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func RegisterSigningMethod(alg string, f func() SigningMethod) {
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signingMethods[alg] = f
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}
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// Get a signing method from an "alg" string
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func GetSigningMethod(alg string) (method SigningMethod, err error) {
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if methodF, ok := signingMethods[alg]; ok {
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method = methodF()
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} else {
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err = errors.New(fmt.Sprintf("Invalid signing method (alg): %v", method))
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}
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return
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}
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