Topic

Blind signatures

Signature schemes in which a signer produces a valid signature on a message without seeing its content, used in privacy-preserving tokens and anonymous credentials.

Current clusters

invest1 publisher

Forging a 1024-bit RSA signature through an HSM costs under 0.3% of factoring the key

UC San Diego and Inria researchers forged a 1024-bit RSA signature through an HSM in 1,380 core-years, against at least 500,000 to factor the key. The attack only works with raw, unpadded signing access, so how exposed a custodian is depends on how its HSM is configured.

Publishers:cryptopolitan.com

Reality

Evidence58
Adoption: Insufficient
Hype gap+12
Incentives: Insufficient
Confidence52

invest1 publisher

Researchers forge RSA signatures from a hardware security module by making it sign 4 billion raw numbers

UC San Diego and INRIA researchers forged RSA signatures on a 1,024-bit key inside a hardware security module after about 4 billion signing requests. The key stayed inside the device throughout, so for custodians the exposure is in signing settings, starting with the FIPS mode the researchers switched off.

Publishers:decrypt.co

Reality

Evidence45
Adoption: Insufficient
Hype gap+10
Incentives: Insufficient
Confidence40