Implementation comparison: `crypto_hash/md5`

Operation	`crypto_hash`
Primitive	`md5`
Description	MD5 with 128-bit output
Designers	Ron Rivest
Implementations	`openssl`	Daniel J. Bernstein (wrapper around OpenSSL)
	`ref`	Daniel J. Bernstein (wrapper around crypto_hashblocks/md5)

Implementation comparison: crypto_hash/md5