bcgit/bc-java · Security

In Bouncy Castle JCE Provider the DSA key pair generator generates a weak private key if used with default values

GHSA ID
GHSA-rrvx-pwf8-p59p
CVE ID
CVE-2016-1000343
Severity
high
Published
Updated
CVSS
7.5 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v3
7.5 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

In the Bouncy Castle JCE Provider version 1.55 and earlier the DSA key pair generator generates a weak private key if used with default values. If the JCA key pair generator is not explicitly initialised with DSA parameters, 1.55 and earlier generates a private value assuming a 1024 bit key size. In earlier releases this can be dealt with by explicitly passing parameters to the key pair generator.

References