I've had a look at some tags related for cryptographic algorithms. Here are several related minor issues. We should decide on which tag names we prefer, then retag or synonymize as desired.
Ciphers
3DES: tripledes should be a synonym of 3des (the latter has a lot more uses and a tag wiki).
Rijndael/AES: Should rijndael be a synonym of aes? Strictly speaking, Rijndael is a superfamily of AES, but in practice they are used almost interchangeably.
chaining: We have ecb and cbc-mode. Which naming form is better?
Digests
md5_file
: Is it worth having a separate tag for md5-file, and if so, should it be reserved for themd5_file
function in PHP?SHA1 or SHA-1: We have both sha-1 and sha1. They should be merged, in which direction? Ditto for sha-512 and sha512.
SHA-2: We have separate tags for sha2, sha256 and sha512. Should they be folded into sha-2, or should they remaine separate?
hmacsha1: Should hmacsha1 remain, or should it be transformed to hmac+sha-1?