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Implement CreateNewKeyPair function #82

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Implement CreateNewKeyPair function #82

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61 changes: 61 additions & 0 deletions common/keypair/keypair.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,18 @@ import (
"encoding/base64"
"github.com/block-vision/sui-go-sdk/common/sui_error"
"math"
"bytes"
"encoding/hex"
"fmt"
"log"


"github.com/block-vision/sui-go-sdk/models"
"github.com/block-vision/sui-go-sdk/signer"
"github.com/tyler-smith/go-bip32"
"github.com/tyler-smith/go-bip39"
"golang.org/x/crypto/blake2b"
"golang.org/x/crypto/ed25519"
)

type KeyPair byte
Expand Down Expand Up @@ -62,3 +72,54 @@ func FetchKeyPair(value string) (models.SuiKeyPair, error) {
return models.SuiKeyPair{}, sui_error.ErrInvalidEncryptFlag
}
}

func CreateNewKeyPair() {
// 1. Generate 24-word mnemonic
entropy, _ := bip39.NewEntropy(256)
mnemonic, _ := bip39.NewMnemonic(entropy)
fmt.Println("Mnemonic:", mnemonic)

// 2. Convert mnemonic to seed
seed := bip39.NewSeed(mnemonic, "")

// 3. SLIP-0010 Ed25519 master key
masterKey, err := bip32.NewMasterKey(seed)
if err != nil {
log.Fatal(err)
}

// 4. Sui derivation path: m/44'/784'/0'/0'/0'
path := []uint32{
44 + bip32.FirstHardenedChild,
784 + bip32.FirstHardenedChild,
0 + bip32.FirstHardenedChild,
0 + bip32.FirstHardenedChild,
0 + bip32.FirstHardenedChild,
}

key := masterKey
for _, p := range path {
key, err = key.NewChildKey(p)
if err != nil {
log.Fatal(err)
}
}

// 5. Private key seed (32 bytes)
seed32 := key.Key

// 6. Generate Ed25519 keypair (correct Go version)
pub, priv, err := ed25519.GenerateKey(bytes.NewReader(seed32))
if err != nil {
log.Fatal(err)
}

fmt.Println("Private Key:", hex.EncodeToString(priv))
fmt.Println("Public Key :", hex.EncodeToString(pub))

// 7. Convert public key to Sui address
hash := blake2b.Sum256(pub)
address := "0x" + hex.EncodeToString(hash[:])
fmt.Println("Sui Address:", address)

}