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Estimate the cryptographic resistance and brute-force complexity of common mobile encryption algorithms.
Awaiting Cipher Audit
Mobile networks use symmetric ciphers to protect user privacy and data. The strength of these ciphers depends on the algorithm design (e.g., KASUMI vs SNOW 3G) and the effective key length. Entropy measures the randomness of the key; design flaws can reduce effective entropy even if the nominal key length is long.
Legacy GSM encryption susceptible to rainbow table attacks due to short effective key length and weak linear feedback shift registers.
A block cipher used in 3G and 4G. While significantly stronger than A5/1, modern systems are moving towards AES-based EEA2/EIA2.
The time required to guess a key using all possible combinations. Standard B2B requirement is >112 bits of effective security.