To be clear: I'm by no means an expert, so take my advice with a huge grain of salt (pun intended). But from what it seems, with no offense intended, neither are you.
On Wed, Sep 20, 2023 at 10:32 AM Axel Wagner <axel.wagner...@googlemail.com> wrote: > As I understand it, ed25519 is using Curve25519 in EdDSA, which is a > signing scheme. So using "ed25519" for encryption does not make any sense. > NaCl also uses Curve25519, ultimately using ECDH (again, as I understand > it) to establish a secret key for Salsa20. So it is pretty fundamentally > different than ed25519. > Note that golang.org/x/crypto/nacl *is* a pure Go package, not a > libsodium wrapper. And yes, it's very likely what you want, if you want to > use Curve25519 for encryption. Unless you want to roll your own > cryptography, in which case, here be dragons. But the `crypto/ecdh` package > (available since Go 1.20) would probably the primitive to look at. > > On Wed, Sep 20, 2023 at 10:02 AM christoph...@gmail.com < > christophe.mees...@gmail.com> wrote: > >> Hello, >> >> I noticed that the go standard library only support ed25519 signing ( >> https://pkg.go.dev/crypto/ed25519@go1.21.1). >> >> I would need to encrypt a small secret with the public key of the >> receiver so that he is the only one able to decrypt it with its private >> key. The small secret would typically be a random symmetric key used to >> encrypt the possibly long message. >> >> The only solution I found is to use nacl.Box ( >> https://pkg.go.dev/golang.org/x/crypto/nacl/box). Why is it so ? >> >> Are there alternative reliable go packages I could use ? I'll use only a >> pure Go package, not a libsodium wrapper package. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts+unsubscr...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/golang-nuts/8018a90a-fae2-4c45-8c19-ed8b5c205319n%40googlegroups.com >> <https://groups.google.com/d/msgid/golang-nuts/8018a90a-fae2-4c45-8c19-ed8b5c205319n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAEkBMfGUwCYsF%2BvDUf2VXfbOeTextJXiFTKjQrO9WLQuRmsQ_w%40mail.gmail.com.
