English ⇄ English Russian +

English thesaurus
Challenge Response For Authenticated Cryptographic Keys stresses
sec.sys., abbr.	CRACK

Challenge Response : 37 phrases in 12 subjects

Biology	1
Computer networks	2
Ecology	1
Electronics	1
Immunology	1
Information security and data protection	9
Information technology	1
Mass media	2
Microsoft	1
Programming	7
Security systems	10
Telecommunications	1