Erlang: Maps, Comprehensions and Side-effecty Iteration

In Erlang it is fairly common to want to perform a side-effecty operation over a list of values, not because you want to collect an aggregate (fold), actually map the input list to the output list (map), or build a new list in some way (list comprehension) but because you just want the side-effects of […]

OpenSSL RSA DER public key PKCS#1 OID header madness

(Wow, what an utterly unappealing post title…) I have run into an annoying issue with the DER output of RSA public keys in OpenSSL. The basic problem is that OpenSSL adds an OID header to its ASN.1 DER output, but other tools are not expecting this (be it iOS, a keystore in Java, the iPhone […]