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Results tagged with keys
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user 12164
Private and secret keys consists of secret information used as input to various kinds of cryptographic algorithms such as encryption, signature and MAC to select the concrete transformation done by the algorithm.
1
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3
answers
2k
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Does it make sense to block RSA keys under 1024 bits?
Almost 27,000 of the keys they examined were cryptographically worthless because one of the factors used to generate them was used by at least one other key. … As these findings were related to 1024-bit RSA keys (and even those show some points of weakness), does it make sense to generally block all RSA keys under 1024 bits to enforce/strengthen used crypto? …
- 18.1k
2
votes
1
answer
667
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Having 4096 bit keys and short (< 256 byte) messages, can I simply use the key as OTP?
Assumptions:
Alice and Bob use (cryptographically secure, hardware-rng generated) 4096 bit keys.
Each message is encrypted using a new key; meaning: once a key is used, it's destroyed. … Since the 4096 bit keys practically represent 512 bytes, the key obviously holds enough random material so that it "could" be considered suitable for One-Time-Pad use (like in classical OTP cipher examples …
- 18.1k
15
votes
3
answers
1k
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Can we ensure the security of a crypto-algorithm and -implementaton against acoustic cryptan...
Attack
In short, they discovered that it is possible to crack 4096-bit RSA encryption keys using a microphone to listen to high-pitch noises generated by internal computer components. …
- 18.1k