tls.TLS_AES_256_GCM_SHA384,
			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, // TLS 1.2
			tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
			tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
			tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
		}
	}
	return []uint16{
		tls.TLS_CHACHA20_POLY1305_SHA256, // TLS 1.3
		tls.TLS_AES_128_GCM_SHA256,
		tls.TLS_AES_256_GCM_SHA384,
		tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, // TLS 1.2

		New: func() interface{} {
			buf := make([]byte, base64BufferSize)
			return &buf
		},
	}

	hmacSigners = []*SigningMethodHMAC{
		{Name: "HS256", Hash: crypto.SHA256},
		{Name: "HS384", Hash: crypto.SHA384},
		{Name: "HS512", Hash: crypto.SHA512},
	}
	for i := range hmacSigners {
		h := hmacSigners[i].Hash
		hmacSigners[i].HasherPool.New = func() interface{} {
			return h.New()
		}
	}
}

	jp := new(jwtgo.Parser)
	jp.ValidMethods = []string{
		"RS256", "RS384", "RS512",
		"ES256", "ES384", "ES512",
		"HS256", "HS384", "HS512",
		"RS3256", "RS3384", "RS3512",
		"ES3256", "ES3384", "ES3512",
	}

	keyFuncCallback := func(jwtToken *jwtgo.Token) (interface{}, error) {
		kid, ok := jwtToken.Header["kid"].(string)
		if !ok {

//go:build !fips
// +build !fips

package openid

import (
	"crypto"

	"github.com/golang-jwt/jwt/v4"

	// Needed for SHA3 to work - See: https://golang.org/src/crypto/crypto.go?s=1034:1288
	_ "golang.org/x/crypto/sha3" // There is no SHA-3 FIPS-140 2 compliant implementation
)

// Specific instances for RS256 and company
var (
	SigningMethodRS3256 *jwt.SigningMethodRSA

//go:build !fips
// +build !fips

package openid

import (
	"crypto"

	"github.com/golang-jwt/jwt/v4"

	// Needed for SHA3 to work - See: https://golang.org/src/crypto/crypto.go?s=1034:1288
	_ "golang.org/x/crypto/sha3" // There is no SHA-3 FIPS-140 2 compliant implementation
)

// Specific instances for EC256 and company
var (
	SigningMethodES3256 *jwt.SigningMethodECDSA