I write about cryptography, mostly about resources that I think are missing. If I’m trying to learn something new and nobody has written a good explanation of it then I’ll write it!

https://www.cryptologie.net

Some examples of articles I've written:

* A 4-part series on hash-based signatures https://www.cryptologie.net/article/306/hash-based-signature...

* ASN.1 vs DER vs PEM vs x509 vs PKCS#7 vs .... https://www.cryptologie.net/article/260/asn1-vs-der-vs-pem-v...

* BEAST: An Explanation of the CBC Attack on TLS https://www.cryptologie.net/article/413/beast-an-explanation...

* Fault attacks on RSA's signatures https://www.cryptologie.net/article/371/fault-attacks-on-rsa...

* A history of end-to-end encryption and the death of PGP https://www.cryptologie.net/article/487/a-history-of-end-to-...

* Cryptographic Signatures, Surprising Pitfalls, and LetsEncrypt https://www.cryptologie.net/article/495/cryptographic-signat...

* How symmetric password-authenticated key exchanges work (sPAKE) https://www.cryptologie.net/article/490/how-symmetric-passwo...

* Proof of Elgamal's semantic security using a reduction to DDH https://www.cryptologie.net/article/464/proof-of-elgamals-se...

* Developers Are Not Idiots https://www.cryptologie.net/article/466/developers-are-not-i...