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Ran 12 Jun 2020 05:29PM UTC

Files 16

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Committed 12 Jun 2020 05:26PM UTC coverage: 89.037% (+0.8%) from 88.242%

Job # 280.4

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push

travis-ci

Committed by

sybrenstuvel

Commit Message

Fix CVE-2020-13757: detect cyphertext modifications by prepending zero bytes

Reject cyphertexts that have been modified by prepending zero bytes, by
checking the cyphertext length against the expected size (given the
decryption key). This resolves CVE-2020-13757.

The same approach is used when verifying a signature.

Thanks Carnil for pointing this out on https://github.com/sybrenstuvel/python-rsa/issues/146

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