Forst
Solved (33/43)
Unsolved (10/43)
Tags
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
Salt Alone Won't Save You
ECDSA Nonce Recovery
Monoalphabetic Cipher
Elliptic Curve Private Key Recovery
Fast Hashing Passwords
Bad Entropy
Rainbow Table Hash Chain
AES-CTR with Nonce Reuse
CCA on Textbook RSA
Recover the secret phone number
Breaking PDF Passwords
Insufficient Key Size
Håstad's Broadcast Attack
CBC Padding Attack
Insecure PRNG
CRIMEs against TLS
Bleichenbacher's CCA2 on RSA
Upgraded Affine
Fvtavat Xrl Erpbirel
Slightly harder passwords
Forging OCB2 Mode Tags
Optimal Backpack Allocation
Vigenère + Rail Fence
Playfair
DSA with LCG nonces
Backdoored PRNG
Not So Safe Primes
RSA
x10
PublicKey-Crypto
x9
Passwords
x6
Classical-Crypto
x6
Hashing
x6
Symmetric-Crypto
x5
AES
x4
Tutorial
x3
PGP
x2
Bitcoin
x2
Factoring
x2
ECC
x2
Side-Channel
x2
TLS
x1
PDF
x1
PRNG
x1
OpenSSL
x1