URL Encryption
Feature Name |
Release Information |
Description |
---|---|---|
Redirect URL Encryption |
2024.01 |
UPF supports the URL encryption of the dynamic fields using the Blowfish and AES encryption methods. Default Setting: Disabled – Configuration Required |
The redirect URL consists of the URL address with one or more dynamic fields. These dynamic fields can be encrypted using the Blowfish 128-bit or AES 256-bit encryption methods.
UPF supports encryption of the following dynamic fields:
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#BEARER.MSISDN#
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#BEARER.IMSI#
UPF supports the following encryption methods to encrypt the dynamic fields:
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Blowfish Encryption—A symmetric block cipher that accommodates a variable-length key ranging from 32 to 448 bits. UPF uses single 128-bit key encryption for both encrypting and decrypting data.
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AES Encryption—A symmetric block cipher with encryption key of sizes 128, 192, and 256 bits. UPF uses Advanced Encryption Standard (AES) with Cipher Block Chaining (CBC) mode and 256-bit keys for encryption.
For AES encryption with CBC mode, a key phrase is taken as a configurable field from the operator. This key phrase is internally converted to a 256-bit key. UPF uses a hardcoded value of 10 rounds of 256-bit keys for AES encryption.