Class IdpfObfuscationEncryptionMethod

An implementation of the default Resource Obfuscation algorithm defined in https://www.w3.org/publishing/epub3/epub-ocf.html#sec-resource-obfuscation.

Typically used for obfuscation of fonts.

This EncryptionMethod implementation is enabled by default in newly created OcfResourceProviders.

Hierarchy

IdpfObfuscationEncryptionMethod

Implements

IEncryptionMethod

Index

Constructors

constructor

Methods

Constructors

constructor

new IdpfObfuscationEncryptionMethod(ocfContainer: IEpubOcfResourceProvider): IdpfObfuscationEncryptionMethod

Parameters
- ocfContainer: IEpubOcfResourceProvider
Returns IdpfObfuscationEncryptionMethod

Methods

decrypt

decrypt(srcData: Uint8Array): Promise<Uint8Array>

Implementation of IEncryptionMethod.decrypt

Decrypt the specified array buffer

Parameters
- srcData: Uint8Array
Returns Promise<Uint8Array>

getName

getName(): string

Implementation of IEncryptionMethod.getName
Get the name of this encryption method.
For XML encryption, this should be the EncryptionMethod element`s Algorithm attribute. For example, for the following XML, this method should return "http://www.idpf.org/2008/embedding":
```
 <enc:EncryptedData>
     <enc:EncryptionMethod Algorithm="http://www.idpf.org/2008/embedding"/>
     <enc:CipherData>
         <enc:CipherReference URI="EPUB/Fonts/BKANT.TTF"/>
     </enc:CipherData>
 </enc:EncryptedData>
```
Returns string

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