}
	if key == nil {
		return tls.Certificate{}, ErrTLSUnexpectedData(nil).Msgf("The private key is not readable")
	}
	if x509.IsEncryptedPEMBlock(key) {
		password := env.Get(EnvCertPassword, "")
		if len(password) == 0 {
			return tls.Certificate{}, ErrTLSNoPassword(nil)
		}
		decryptedKey, decErr := x509.DecryptPEMBlock(key, []byte(password))

				if len(rest) != 0 {
					return tls.Certificate{}, errors.New("Unable to load KES client private key as specified by the shell environment: private key contains additional data")
				}
				if x509.IsEncryptedPEMBlock(privateKeyPEM) {
					keyBytes, err = x509.DecryptPEMBlock(privateKeyPEM, []byte(env.Get(EnvKESClientPassword, "")))
					if err != nil {

pkg crypto/tls, type ConnectionState struct, TLSUnique //deprecated
pkg crypto/x509, func DecryptPEMBlock //deprecated
pkg crypto/x509, func EncryptPEMBlock //deprecated
pkg crypto/x509, func IsEncryptedPEMBlock //deprecated
pkg crypto/x509, type CertificateRequest struct, Attributes //deprecated
pkg database/sql/driver, type ColumnConverter //deprecated
pkg database/sql/driver, type Conn interface, Begin //deprecated