Indian certification authority eMudhra’s private keys compromised – one of them was the number ‘4’

Tragically simple private keys used by a certification authority based in India have been compromised, meaning the 60-million-plus certs it has issued can’t be trusted and necessitating a massive clean-up job. The CA of concern in this case is called eMudhra, which boasts of having issued over 60 million digital certificates to help usher in a world of digital trust.

Summary from The Register Security.

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