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2026-05-10
Crypto
Medium
Raptor Weekly 2 - ECHELON Crypto 2 - 3.2 ; FREQUENCY
Recognizing a GCM nonce reuse vulnerability across two calibration reports, cancelling the keystream by XORing the ciphertexts, and recovering the anomaly report plaintext using a legacy diagnostic endpoint left running after decommission.
crypto
aes-gcm
nonce-reuse
ECHELON
2026-03-01
Crypto
Hard
DEADROP Crypto 4 - DSA Again?
Two DSA signatures from the same key share an identical r value, a dead giveaway of nonce reuse. Recover the private key, forge a signature over the target authorization message, and submit it to the server.
dsa
nonce-reuse
private-key-recovery
signature-forgery