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.
Public-key cryptography, or asymmetric cryptography, is any cryptographic system that uses pairs of keys: public keys that may be disseminated widely paired with private keys which are known only to the owner.