# DakCertificateMetadata
<a name="API_DakCertificateMetadata"></a>

The device attestation key (DAK) information.

## Contents
<a name="API_DakCertificateMetadata_Contents"></a>

 ** CertificateId **   <a name="iotwireless-Type-DakCertificateMetadata-CertificateId"></a>
The certificate ID for the DAK.  
Type: String  
Length Constraints: Maximum length of 256.  
Required: Yes

 ** ApId **   <a name="iotwireless-Type-DakCertificateMetadata-ApId"></a>
The advertised product ID (APID) that's used for pre-production and production applications.  
Type: String  
Length Constraints: Maximum length of 256.  
Required: No

 ** DeviceTypeId **   <a name="iotwireless-Type-DakCertificateMetadata-DeviceTypeId"></a>
The device type ID that's used for prototyping applications.  
Type: String  
Length Constraints: Maximum length of 2048.  
Required: No

 ** FactorySupport **   <a name="iotwireless-Type-DakCertificateMetadata-FactorySupport"></a>
Whether factory support has been enabled.  
Type: Boolean  
Required: No

 ** MaxAllowedSignature **   <a name="iotwireless-Type-DakCertificateMetadata-MaxAllowedSignature"></a>
The maximum number of signatures that the DAK can sign. A value of `-1` indicates that there's no device limit.  
Type: Integer  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/iotwireless-2025-11-06/DakCertificateMetadata) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iotwireless-2025-11-06/DakCertificateMetadata) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iotwireless-2025-11-06/DakCertificateMetadata)