title: Electronic signatures, digital signatures, and digital certificates.
authors.forename: J J
authors.initials: JJ
authors.lastname: Welch
mesh_terms: D000465:Algorithms; D001319:Authorship; D016494:Computer Security / Q000592:standards*; D020408:Health Insurance Portability and Accountability Act / Q000331:legislation & jurisprudence; D019451:Information Management / Q000592:standards*; D012815:Signal Processing, Computer-Assisted; D014481:United States; D014483:United States Dept. of Health and Human Services