zzh1996

Intro to PGP

Hello OpenSSL

Intro to RSA

Intro to Hashing

Hello Bitcoin

Hello PGP

Caesar

Ps and Qs

Affine Cipher

Factoring RSA With CRT Optimization

Rail Fence

Easy Passwords

RSA Modulus Factorization

Cut and Paste Attack On AES-ECB

Double Strength Affine

Vigenère

Upgraded Affine

Fvtavat Xrl Erpbirel

Slightly harder passwords

Salt Alone Won't Save You

ECDSA Nonce Recovery

Monoalphabetic Cipher

Elliptic Curve Private Key Recovery

Fast Hashing Passwords

Forging OCB2 Mode Tags

Bad Entropy

Rainbow Table Hash Chain

AES-CTR with Nonce Reuse

CCA on Textbook RSA

Recover the secret phone number

Optimal Backpack Allocation

Breaking PDF Passwords

Vigenère + Rail Fence

Insufficient Key Size

Håstad's Broadcast Attack

Insecure PRNG

Playfair

DSA with LCG nonces

Backdoored PRNG

Not So Safe Primes

Bleichenbacher's CCA2 on RSA