New answers tagged cryptography
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Is using weak random numbers for the initialization vector of AES just a theoretical issue?
You usually need two random primes a and b. There was a case where the software creating private keys used the same a and b for two keys leading to duplicated private keys, which is not a big problem.
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Is using weak random numbers for the initialization vector of AES just a theoretical issue?
In this case, you're using CBC, which requires an unpredictable IV, so this is a security vulnerability. To quote Wikipedia:
If an attacker knows the IV (or the previous block of ciphertext) before ...
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Java Cryptography classes - program agnostic usage
Standard support
In general the JCA implements well specified algorithms. The trick is to use those algorithms both for your Java and for the other languages. You may want to map specific algorithms ...
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Encrypted semantic search
Is it possible? Yes, distance-preserving encryption is theoretically possible.
But without delving too deep into the mathematics of the thing, this also weakens security on the encryption unless you ...
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Terminology for exchanging one piece of signed information for another
The purpose of the signed data can be set using the "additional data" in AEAD ciphers, and partially in the audience field in a JWT. Is there a better name for such a field?
This mechanism ...
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