# Full WriteUpFull Writeup on our website: [http://www.aperikube.fr/docs/easyctf_2018_rsa_v/](http://www.aperikube.fr/docs/easyctf_2018_rsa_v/)
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# TL;DREncrypting with RSA multiple times is just multiplying the exponent and finding the associated private key. Because e was almost as big as n, a Wiener attack was able to break the encryption.