55 lines
1.0 KiB
Go
55 lines
1.0 KiB
Go
package main
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import (
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"bytes"
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"crypto/rand"
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"fmt"
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"log"
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secp "p8k.mleku.dev"
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)
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func main() {
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ctx, err := secp.NewContext(secp.ContextSign)
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if err != nil {
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log.Fatal(err)
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}
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defer ctx.Destroy()
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// Alice's keys
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alicePriv := make([]byte, 32)
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if _, err := rand.Read(alicePriv); err != nil {
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log.Fatal(err)
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}
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alicePub, err := ctx.CreatePublicKey(alicePriv)
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if err != nil {
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log.Fatal(err)
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}
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// Bob's keys
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bobPriv := make([]byte, 32)
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if _, err := rand.Read(bobPriv); err != nil {
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log.Fatal(err)
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}
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bobPub, err := ctx.CreatePublicKey(bobPriv)
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if err != nil {
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log.Fatal(err)
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}
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// Alice computes shared secret with Bob's public key
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aliceShared, err := ctx.ECDH(bobPub, alicePriv)
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if err != nil {
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log.Fatal(err)
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}
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// Bob computes shared secret with Alice's public key
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bobShared, err := ctx.ECDH(alicePub, bobPriv)
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if err != nil {
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log.Fatal(err)
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}
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fmt.Printf("Alice's shared secret: %x\n", aliceShared)
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fmt.Printf("Bob's shared secret: %x\n", bobShared)
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fmt.Printf("Secrets match: %v\n", bytes.Equal(aliceShared, bobShared))
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}
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