Search Results for: cryptoauthentication

4 Different Authentication Models—Which One is Right for You?

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By: Rocendo Bracamontes Atmel’s ATSHA204 CryptoAuthentication™ device  allows four different ways to perform symmetric cryptographic authentication on a system: Fixed Challenge Authentication Fixed Challenge Authentication is an easy way to add security to a product without the expense of added hardware to the host, interactive testing, or extensive software development. With Fixed Challenge Authentication, the […]

Symmetric vs. Asymmetric Encryption: Which Way is Better?

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There are two fundamental ways to use keys or secrets for encryption:symmetric and asymmetric.  Symmetric encryption uses the identical key to both encrypt and decrypt the data.  Symmetric key algorithms are much faster computationally than asymmetric algorithms as the encryption process is less complicated.  The length of the key size is critical for the strength […]