# Category Archives: encryption

## WanaCryptor File Encryption and Decryption

Introduction This is a quick post about the WanaCryptor ransomware wreaking havoc on many networks across the world this weekend. With all the news coverage, most of you already know the trouble caused by it. Once executed on a system, … Continue reading

Posted in cryptography, encryption, malware, public key exchange, security, windows
Tagged aes, capi, crypto, cryptography, encryption, ransomware, rsa, wanacryptor, windows
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## SPEKE (Simple Password Exponential Key Exchange) using OpenSSL

Introduction David P. Jablon published a paper in 1996 called Strong Password-Only Authenticated Key Exchange where he describes a new protocol based on Diffie-Hellman-Merkle key exchange. Diffie-Hellman key exchange is susceptible to MITM attack but with just Modular Multiplication and … Continue reading