Crypto: Missing writeups

- [ ] https://github.com/ctfs/write-ups-2015/tree/master/asis-finals-ctf-2015/crypto/the-last-survivor
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/asis-quals-ctf-2015/crypto/qrypt
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/break-in-ctf-2015/crypto/numbero
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/confidence-ctf-teaser-2015/crypto/the-real-mac-hacking-400
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/csaw-finals-ctf-2015/cryptography/check-plz
- [x] https://github.com/ctfs/write-ups-2015/tree/master/dctf-2015/crypto/custom-function-engineering-300
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/dctf-2015/crypto/things-you-were-not-able-to-see-in-the-past-100
- [x] https://github.com/ctfs/write-ups-2015/tree/master/ekoparty-ctf-2015/crypto/cry300
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/ekoparty-ctf-2015/crypto/cry400
- [x] https://github.com/ctfs/write-ups-2015/tree/master/ekoparty-ctf-2015/crypto/cry50
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/hack-lu-ctf-2015/crypto/campus-id-sso
- [x] https://github.com/ctfs/write-ups-2015/tree/master/hack-lu-ctf-2015/crypto/formular-generator
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/hackover-ctf-2015/crypto/fuckaduck
- [x] https://github.com/ctfs/write-ups-2015/tree/master/hackover-ctf-2015/crypto/nodistinguisher
- [x] https://github.com/ctfs/write-ups-2015/tree/master/hackover-ctf-2015/crypto/racer
- [x] https://github.com/ctfs/write-ups-2015/tree/master/hackover-ctf-2015/crypto/radorium
- [x] https://github.com/ctfs/write-ups-2015/tree/master/hackover-ctf-2015/crypto/yodigga
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/hitcon-ctf-quals-2015/crypto/random
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/ibteam-blackvalentine-ctf-2015/crypto/crypto-3
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/icectf-2015/cryptography/alternate-rsa
- [x] https://github.com/ctfs/write-ups-2015/tree/master/icectf-2015/cryptography/cryptic-crypto
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/icectf-2015/cryptography/diary
- [x] https://github.com/ctfs/write-ups-2015/tree/master/icectf-2015/cryptography/farm-animals
- [x] https://github.com/ctfs/write-ups-2015/tree/master/icectf-2015/cryptography/numb3rs
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/inc0gnito-ctf-2015/crypto/Gaebale-in-panic
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/inc0gnito-ctf-2015/crypto/RSA
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/inc0gnito-ctf-2015/crypto/WhoAreYou
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/nullcon-hackim-2015/crypto-3
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/nullcon-hackim-2015/crypto-4
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/nullcon-hackim-2015/crypto-5
- [x] https://github.com/ctfs/write-ups-2015/tree/master/rctf-quals-2015/crypto/asm
- [x] https://github.com/ctfs/write-ups-2015/tree/master/school-ctf-2015/crypto/affine-cipher-100
- [x] https://github.com/ctfs/write-ups-2015/tree/master/school-ctf-2015/crypto/bypassing-the-snake-400
- [x] https://github.com/ctfs/write-ups-2015/tree/master/school-ctf-2015/crypto/crypto-lego-500
- [x] https://github.com/ctfs/write-ups-2015/tree/master/school-ctf-2015/crypto/super-digest-4-400
- [x] https://github.com/ctfs/write-ups-2015/tree/master/school-ctf-2015/crypto/super-digest-4-strong-500
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/seccon-quals-ctf-2015/crypto/please-give-me-md5-collision-files
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/securinets-ctf-2015/crypto/card-games
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/securinets-ctf-2015/crypto/decrypt-me
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/tum-ctf-teaser-2015/crypto/linear
- [x] https://github.com/ctfs/write-ups-2015/tree/master/volgactf-quals-2015/crypto/cpkc
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/volgactf-quals-2015/crypto/rusty-idea
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/whitehat-contest-10/crypto/crypto400
- [x] https://github.com/ctfs/write-ups-2015/tree/master/whitehat-grand-prix-qualification-2015/cryptography/buon-ma-thuot
- [ ] https://github.com/ctfs/write-ups-2015/tree/master/whitehat-grand-prix-qualification-2015/cryptography/da-nang
- [x] https://github.com/ctfs/write-ups-2015/tree/master/whitehat-grand-prix-qualification-2015/cryptography/hoi-an
- [x] https://github.com/ctfs/write-ups-2015/tree/master/whitehat-grand-prix-qualification-2015/cryptography/tam-dao