# Keypair
#### createKeypair[](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#createkeypair)
***- Creates an instance of `WalletKeypar` using password.***\
This method is used to restore a wallet keypair. The Keypair contains some essential information, such as:
* address
* public key
* key store
and so on, and it is used for pretty much any personalized operation that user can do using FindoraSdk
**Parameters:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#parameters)
* `` - Password to be used to generate an encrypted KeyStore
**Results:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#results)
* `Promise` - An instance of `WalletKeypar`
**Example:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#example)
```typescript
const password = "qsjEI%123";
// Create a wallet info object using given password
const walletPair = await Keypair.createKeypair(password);
```
#### getAddressByPublicKey[](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#getaddressbypublickey)
***- Get wallet address by given public key***\
Using this function user can retreive the wallet address by given public key
**Parameters:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#parameters-1)
* `` - Public key
**Results:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#results-1)
* `Promise` - A wallet address.
**Example:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#example-1)
```typescript
const pubkey = "qsjEI%123";
// Get wallet address by public key
const walletAddress = await Keypair.getAddressByPublicKey(pubkey);
```
#### getAddressPublicAndKey[](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#getaddresspublicandkey)
***- Create an instance of `LightWalletKeypair` using given wallet address.***\
This method is used to create a light version of the WalletKeypar using given wallet address.The LightWalletKeypair contains two essential information:
* address
* public key
It's a light version of the WalletKeypar, containing only address and publickey
**Parameters:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#parameters-2)
* `` - Wallet address
**Results:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#results-2)
* `Promise` - An instance of `LightWalletKeypair`.
**Example:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#example-2)
```typescript
const address = "fra234xfde4";
// Create a LightWalletKeypair object using given address
const lightWalletKeypair = await Keypair.getAddressPublicAndKey(address);
```
#### getMnemonic[](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#getmnemonic)
***- Creates an array of Mnemonic phrases.***\
This method is used to creates an array of Mnemonic phrases.
**Parameters:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#parameters-3)
* `` - Desired length of mnemonic phrases. It can only be 12/15/18/21/24.
* `` - (optional) Default is `en`.
**Results:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#results-3)
* `Promise` - An instance of `LightWalletKeypair`.
**Example:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#example-3)
```typescript
const desiredLength = 24;
// Create a wallet info object using given password
const mnemonic = await Keypair.getMnemonic(desiredLength);
```
#### restoreFromMnemonic[](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#restorefrommnemonic)
***- Creates an instance of `WalletKeypar` using Mnemonic and password.***\
This method is used to restore a wallet keypair. The Keypair contains some essential information, such as:
* address
* public key
* key store
and so on, and it is used for pretty much any personalized operation that user can do using FindoraSdk
**Parameters:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#parameters-4)
* `` - mnemonic words
* `` - Password to be used to generate an encrypted KeyStore
**Results:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#results-4)
* `Promise` - An instance of `WalletKeypar`.
**Example:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#example-4)
```typescript
const password = "qsjEI%123";
const mnemonic = ["Apple", "Orange", "Banana"];
// Create a wallet info object using given Mnemonic and password
const walletPair = await Keypair.restoreFromMnemonic(mnemonic, password);
```
#### restoreFromPrivateKey[](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#restorefromprivatekey)
***- Creates an instance of `WalletKeypar` using given private key and password.***\
This method is used to restore a wallet keypair. The Keypair contains some essential information, such as:
* address
* public key
* key store
and so on, and it is used for pretty much any personalized operation that user can do using FindoraSdk
**Parameters:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#parameters-5)
* `` - Private key
* `` - Password to be used to generate an encrypted KeyStore
**Results:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#results-5)
* `Promise` - An instance of `WalletKeypar`.
**Example:**[****](https://wiki.findora.org/docs/developers/utxo/sdk-api/sdk_api_keypair#example-5)
```typescript
const password = "qsjEI%123";
const pkey = "XXXXXXXXXX";
// Create a wallet info object using given private key and password
const walletInfo = await Keypair.restoreFromPrivateKey(pkey, password);
```