Secure Hash Algorithm (SHA), a 160-bitmessage digest algorithm developed by the NSA and described in FederalInformation Processing Standard (FIPS) publication 180-1.
Secure Hash Algorithm (SHA), a 256-bitmessage digest algorithm developed by the NSA and described in FederalInformation Processing Standard (FIPS) publication 180-1.
Faint wavy lines of alternating light and dark that sometimes can be seen on flat, light-colored surfaces just before and just after a total solar eclipse. The phenomenon results from sunlight distort
ion by irregularities in the Earth's atmosphere.