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What is the defining difference between symmetric and asymmetric encryption?
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What is the defining difference between symmetric and asymmetric encryption?
RSA's security relies on the computational difficulty of:
Two encrypted files were both produced with AES-128 using a well-chosen random key and a properly implemented, unique-nonce authenticated mode. What is the most accurate statement about their security today?
Why is a fast general-purpose hash like plain SHA-256 a poor choice for hashing passwords?
Why should passwords be hashed rather than encrypted for storage?
Which pair of algorithms best represents "one symmetric, one asymmetric"?
What is "envelope encryption," a common pattern for encrypting large amounts of application data?
What is the primary risk of "rolling your own crypto" instead of using an audited library?
Why should a raw user password never be used directly as an AES key?
A well-known illustration of ECB mode's weakness is:
Why is AES-256-GCM currently recommended over AES-256-ECB?
What is the current minimum recommended RSA key size for security in new systems?