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Questions tagged [fault-attack]

Attacks using errors injected at runtime into an implementation of cryptographic algorithms to cause misbehavior that leak information about keys or (plaintext) data, instead of (or additional to) using cryptographic weaknesses. The countermeasures against such attacks also belong here.

2
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1answer
73 views

Fault attacks inside a loop

I am working on an attack that involves changing a constant inside a loop. Consider the simplified example is as below, ...
2
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1answer
58 views

Statistical (innefective) Fault Attacks on DES

I read this paper: Exploiting Ineffective Fault Inductions on Symmetric Cryptography. I was wondering if the same idea is applicable for DES. I know both algorithms are symmetric but the idea is not ...
2
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1answer
266 views

Fault attack on RSA-CRT

I am trying to understand fault attack on RSA-CRT, and I found some example, which I don't know how to solve it. I know public modulus $N$, public exponent $e$, a value of faulty signature (where ...
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0answers
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AES Fault Attack

Induce random fault (non-zero) error in one byte before MixColumns in Round 9 I get last round key with 32 bit (4 bytes) missing (Missing are bytes 1, 8, 11, 14) How can I recover these key bytes ...
17
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2answers
1k views

Can deterministic ECDSA be protected against fault attacks?

In a paper by Barenghi and Pelosi, it was described that fault attacks could be used to derive the secret key when using deterministic ECDSA as described in RFC6979 by @Thomas_Pornin Deterministic (...
2
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1answer
920 views

The Boneh-DeMillo-Lipton fault attack (RSA CRT)

I am trying to understand the Boneh-DeMillo-Lipton fault attack on RSA CRT signature. Suppose that we sign a message $m$ with RSA-CRT : $d_p = d \bmod (p-1)$ and $d_q = d \bmod (q-1)$ $s_p = h(m)^{...