# DefaultSignProvider

```
class EosSharp::Core::Providers::DefaultSignProvider
  : public ISignProvider
```

Signature provider default implementation that stores private keys in memory.

## Summary

| Members                                                                                                                                                                                                                                                       | Descriptions                                                                |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------- |
| `public` [`DefaultSignProvider`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a06070c9f4b3232bfce29d1d208518068)`(string privateKey)`                                                                                                   | Create provider with single private key.                                    |
| `public` [`DefaultSignProvider`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1ab491f05ee59d57e78077ed655b498575)`()`                                                                                                                    |                                                                             |
| `public` [`DefaultSignProvider`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1ad24474c259472487dc9af334f588d081)`(List< string > privateKeys)`                                                                                          | Create provider with list of private keys.                                  |
| `public` [`DefaultSignProvider`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a2e2e004fd9c1c841a46651d29851078c)`(Dictionary< string, string > encodedKeys)`                                                                            | Create provider with dictionary of encoded key pairs.                       |
| `public` [`DefaultSignProvider`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a4b8c84fad39f9dd53ec93d190f21915d)`(Dictionary< string, byte[]> keys)`                                                                                    | Create provider with dictionary of key pair with private key as byte array. |
| `public Task< IEnumerable< string > >` [`GetAvailableKeys`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a89443935d11063ebf000f777ce4686ca)`()`                                                                                         | Get available public keys from signature provider.                          |
| `public Task< IEnumerable< string > >` [`Sign`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1aa672810df1c127e9eeb2695b87a474e5)`(string chainId, IEnumerable< string > requiredKeys, byte[] signBytes, IEnumerable< string > abiNames)` | Sign bytes using the signature provider.                                    |
| `public string` [`Sign`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a0fc9796423303a91abdb2dada5725241)`(string chainId, byte[] signBytes)`                                                                                            | Sign bytes using the signature provider.                                    |
| `public Dictionary< string, string >` [`Sign`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a79cf8d8e56daaf553c0f6f1579016ca6)`()`                                                                                                      |                                                                             |
| `private readonly byte[]` [`KeyTypeBytes`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a2cf57da14bca71b860e5d2508bb27f2e)`= Encoding.UTF8.GetBytes("K1")`                                                                              |                                                                             |
| `private readonly Dictionary< string, byte[]>` [`Keys`](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a0a3a1162f8d774c5cb19af35b25c8743)`= new Dictionary<string, byte[]>()`                                                             |                                                                             |

## Members

**`public`** [**`DefaultSignProvider`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a06070c9f4b3232bfce29d1d208518068)**`(string privateKey)`**

Create provider with single private key.

#### Parameters

* `privateKey`

**`public`** [**`DefaultSignProvider`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1ab491f05ee59d57e78077ed655b498575)**`()`**

**`public`** [**`DefaultSignProvider`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1ad24474c259472487dc9af334f588d081)**`(List< string > privateKeys)`**

Create provider with list of private keys.

#### Parameters

* `privateKeys`

**`public`** [**`DefaultSignProvider`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a2e2e004fd9c1c841a46651d29851078c)**`(Dictionary< string, string > encodedKeys)`**

Create provider with dictionary of encoded key pairs.

#### Parameters

* `encodedKeys`

**`public`** [**`DefaultSignProvider`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a4b8c84fad39f9dd53ec93d190f21915d)**`(Dictionary< string, byte[]> keys)`**

Create provider with dictionary of key pair with private key as byte array.

#### Parameters

* `keys`

**`public Task< IEnumerable< string > >`** [**`GetAvailableKeys`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a89443935d11063ebf000f777ce4686ca)**`()`**

Get available public keys from signature provider.

#### Returns

List of public keys

**`public Task< IEnumerable< string > >`** [**`Sign`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1aa672810df1c127e9eeb2695b87a474e5)**`(string chainId, IEnumerable< string > requiredKeys, byte[] signBytes, IEnumerable< string > abiNames)`**

Sign bytes using the signature provider.

#### Parameters

* `chainId` EOSIO Chain id
* `requiredKeys` required public keys for signing this bytes
* `signBytes` signature bytes
* `abiNames` abi contract names to get abi information from

#### Returns

List of signatures per required keys

**`public string`** [**`Sign`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a0fc9796423303a91abdb2dada5725241)**`(string chainId, byte[] signBytes)`**

Sign bytes using the signature provider.

#### Parameters

* `key` key used for signing
* `signBytes` signature bytes
* `abiNames` abi contract names to get abi information from

#### Returns

List of signatures per required keys

**`public Dictionary< string, string >`** [**`Sign`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a79cf8d8e56daaf553c0f6f1579016ca6)**`()`**

**`private readonly byte[]`** [**`KeyTypeBytes`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a2cf57da14bca71b860e5d2508bb27f2e)**`= Encoding.UTF8.GetBytes("K1")`**

**`private readonly Dictionary< string, byte[]>`** [**`Keys`**](#class_eos_sharp_1_1_core_1_1_providers_1_1_default_sign_provider_1a0a3a1162f8d774c5cb19af35b25c8743)**`= new Dictionary<string, byte[]>()`**