## b64enc.py - encoder#import systbl = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"print "Type in a line, then press ENTER."l = sys.stdin.readline()l = l[:-1]f = 0p = 0for c in l: if p == 0: f |= ord(c) p = 1 elif p == 1: f |= ord(c)<<2 p = 2 else: f |= ord(c)<<4 p = 0 sys.stdout.write(tbl[f & 0x3F]) f >>= 6 if p == 0: sys.stdout.write(tbl[f & 0x3F]) f >>= 6sys.stdout.write(tbl[f & 0x3F])print ""## b64dec.py - decoder#import sysrtbl = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"print "Type in a line, then press ENTER."l = sys.stdin.readline()l = l[:-1]f = 0p = 0for c in l: i = 0 while rtbl[i] != c and i < len(rtbl): i += 1 if p == 0: f = i p = 1 elif p == 1: f |= i<<6 p = 2 elif p == 2: f |= i<<4 p = 3 else: f |= i<<2 p = 0 if p != 1: sys.stdout.write(chr(f & 0xFF)) f >>= 8print ""