penggle / kaptcha Goto Github PK
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License: Other
kaptcha - A kaptcha generation engine.
License: Other
Kaptcha use OracleJDK Private code,Docker image(tomcat tomee more) both use openJDK
I think it should be use a secure random algorithm “SecureRandom” to generate verifycode
An attacker will simply compute the seed from the output values observed. This takes significantly less time than 2^48 in the case of java.util.Random.
It is shown that you can predict future Random outputs observing only two(!) output values in time roughly 2^16.
kaptcha version 2.3.2 have some security problem
plz update mvnrepository version
thx
这个依赖 github 为什么会一直提醒 强力可以破解
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