All types of lettuce have roughly the same number of calories. Whether you prefer red leaf, green leaf, iceberg, romaine or Bibb lettuce, youâll get a similar number of calories. A 3-ounce portion of any of these types of lettuce, which amounts to 85 grams by weight, provides between 10 and 15 total calories.
A cryptographer is one who practices or studies cryptography, a field primarily involved with keeping secret information secret. Modern cryptography is mostly concerned with encrypting digital information, such as e-mail, to protect it as it's sent from one digital source to another.
For an overview of cryptographic technology in general, see Cryptography. In cryptography, encryption is the process of encoding messages or information in such a way that only authorized parties can read it. Encryption does not of itself prevent interception, but denies the message content to the interceptor.