Enhance Joomla form security with the Captcha - Hashcash plugin. This free tool uses lightweight, client-side proof-of-work to block spam bots without user interaction. It integrates seamlessly with Joomla’s core captcha system, protecting forms like login, registration, or contact pages. Ideal for reducing spam while maintaining user experience.
Extension Page: Captcha - HashCash
Added a 64KB memory loop to PBKDF2 to introduce a memory bottleneck in GPU applications. This levels the playing field.
| File size | 21.79 Kb |
| MD5 Signature | 211168efe7c7943239dd3f5c1f5909b5 |
| SHA1 Signature | 2015eb4f51b61d5b4bd42cdb54126afe0259519d |
| SHA-256 Signature | 033ac1a76ebf1c2e4bd13e0dfa82cf281670ec8a9a21518d19d85ab207837d94 |
| SHA-384 Signature | dac6b89d3f86c0c205875dcb16fecaf82b0943cb5258e11b333583919750562c4507fc8fc01f09a0301ade38a7ebdfa0 |
| SHA-512 Signature | efd5c9ebf19ab6f1d339d4c6e0cec391f828954b7caaeb60b38507ae9db1252a6c394d08bc3ffab991766a59b483ec662de8030ec9d96e7cec287e5a9193df9c |
| Compatibility |