rsakeyfind

Locates BER-encoded RSA private keys in memory images

Platforms: Linux · Last verified September 6, 2026

rsakeyfind is a tool that locates BER-encoded RSA private keys in MEMORY-IMAGE. If a MODULUS-FILE is specified, it will locate private and public keys matching the hex-encoded modulus read from this file.

Only use this tool against systems you own or are explicitly authorized to test — see the disclaimer.

Getting started

See the official Kali tool page and upstream homepage linked above for installation and usage details.

Commonly preinstalled on

Kali Linux

Debian-based distribution built for penetration testing and security auditing