> For the complete documentation index, see [llms.txt](https://help.santesuite.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.santesuite.org/developers/server-plugins/implementing-.net-features/service-definitions/password-hashing-service.md).

# Password Hashing Service

`IPasswordHashingService` in assembly SanteDB.Core.Api version 3.0.1980.0

## Summary

Password hashing service.

## Operations

| Operation   | Response/Return | Input/Parameter       | Description               |
| ----------- | --------------- | --------------------- | ------------------------- |
| ComputeHash | String          | *String* **password** | Compute the password hash |
| ComputeHash | Byte\[]         | *Byte\[]* **data**    | Compute the password hash |

## Implementations

### SHA1 Password Encoding Service - (SanteDB.Core.Api)

SHA1 password generator service

#### Service Registration

```markup
...
<section xsi:type="ApplicationServiceContextConfigurationSection" threadPoolSize="4">
	<serviceProviders>
		...
		<add type="SanteDB.Core.Security.SHA1PasswordHashingService, SanteDB.Core.Api, Version=3.0.1980.0, Culture=neutral, PublicKeyToken=null" />
		...
	</serviceProviders>
```

### SHA256 Password Encoding Service - (SanteDB.Core.Api)

SHA256 password generator service

#### Service Registration

```markup
...
<section xsi:type="ApplicationServiceContextConfigurationSection" threadPoolSize="4">
	<serviceProviders>
		...
		<add type="SanteDB.Core.Security.SHA256PasswordHashingService, SanteDB.Core.Api, Version=3.0.1980.0, Culture=neutral, PublicKeyToken=null" />
		...
	</serviceProviders>
```

## Example Implementation

```csharp
/// Example Implementation
using SanteDB.Core.Security.Services;
/// Other usings here
public class MyPasswordHashingService : SanteDB.Core.Security.Services.IPasswordHashingService { 
	public String ServiceName => "My own IPasswordHashingService service";
	/// <summary>
	/// Compute the password hash
	/// </summary>
	public String ComputeHash(String password){
		throw new System.NotImplementedException();
	}
	/// <summary>
	/// Compute the password hash
	/// </summary>
	public Byte[] ComputeHash(Byte[] data){
		throw new System.NotImplementedException();
	}
}
```

## References

* [IPasswordHashingService C# Documentation](http://santesuite.org/assets/doc/net/html/T_SanteDB_Core_Security_Services_IPasswordHashingService.htm)
* [SHA1PasswordHashingService C# Documentation](http://santesuite.org/assets/doc/net/html/T_SanteDB_Core_Security_SHA1PasswordHashingService.htm)
* [SHA256PasswordHashingService C# Documentation](http://santesuite.org/assets/doc/net/html/T_SanteDB_Core_Security_SHA256PasswordHashingService.htm)