Key-stretching adds additional security to potentially weak keys by requiring an expensive computation to transform the initial key into a derived key.
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Can I use the same password both for SRP and for client-side encryption?
Suppose a less-than-trusted server is used to store users' confidential data (encrypted at the client side), and both tasks - authentication and encryption/decryption - should be doable with a single ...
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Should I run my password through Bcrypt before using it for encrypting a file with AES-256? [duplicate]
I need to encrypt a file with a password that can be memorized. So I was thinking about running the password through some rounds of Bcrypt before using it for AES encryption, so every time I want to ...
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Should hashing hashed hashes colide or not?
Since key stretching basically boils down to hashing hashes over and over again (where salt, pepper and password individualize the hash function, but the principle remains the same), I wonder about ...
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BCrypt+SHA256 vs PBKDF2-SHA256
From this question, the OP posited taking a user's entered password, running it through BCrypt, then running that through SHA256 to produce a 256-bit password-derived key. (EDIT: To clarify, these two ...
