Provides fast and memory efficient Base64, Base64Url, and Hex decoding and encoding.
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Class Summary 
| Class | 
Description | 
| Base64 | 
 Provides RFC 4648 / RFC 2045 compatible Base64 encoding and decoding. 
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| Base64url | 
Makes use of the  Base64 class to encode and decode to and from URL-safe Base64.  
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| Hex | 
 Routines for encoding and decoding binary data in hexadecimal format. 
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