code: function parse_EncryptionInfo(blob) {
  	var vers = parse_CRYPTOVersion(blob);
  	switch(vers.Minor) {
  		case 0x02: return [vers.Minor, parse_EncInfoStd(blob, vers)];
  		case 0x03: return [vers.Minor, parse_EncInfoExt(blob, vers)];
  		case 0x04: return [vers.Minor, parse_EncInfoAgl(blob, vers)];
  	}
  	throw new Error("ECMA-376 Encrypted file unrecognized Version: " + vers.Minor);
  }
docs: /* [MS-OFFCRYPTO] 2.3.4.* EncryptionInfo Stream