MD5 and SHA1 in Ruby

require 'digest/md5'

require 'digest/sha1'

hash_md5=Digest::MD5.new

hash_sha1=Digest::SHA1.new

hash_md5.update("abcdefghijkln")

hash_md5.hexdigest ---> Returns digest string

hash_sha1.update("abcdefghijkln")

hash_sha1.hexdigest ---> Returns sha1 string