APPARATUS AND METHOD FOR PROVIDING FEEDBACK ON INPUT DATA
A method and an apparatus for providing feedback on input of data. A processor iteratively receives a character of the data and generates a feedback output from the received character and a feedback output generated previously. The processor also outputs the feedback output. The processor preferably belongs to an apparatus that further comprises a user interface, through which the data is received. It is preferred that the feedback output is an image, preferably generated from at least one of geometric shapes, colours, rotations of the image and flips of the image. The feedback output for a first received character can be based on the first received character and a starting output and it is preferable that when the data are a password, the starting output is generated from user related data.
1 . An apparatus for providing feedback on input of data comprising:
an input interface configured to receive characters of the data in an ordered series;
a processing unit configured to generate iteratively a non-cleartext feedback from the characters of the data based on feedback for a current received character and the non-cleartext feedback generated for a preceding character in the ordered series, wherein the feedback for the current received character is different for different characters; and
an output interface configured to output the feedback output.
2 . The apparatus of claim 1 , wherein the non-cleartext feedback is an image is generated from at least one of geometric shapes, colors, rotations of the image and flips of the image.
3 . The apparatus of claim 1 , wherein the non-cleartext feedback is made up of at least one of sounds, haptic signals in a virtual scene and a sequence of moves of an avatar.
4 . The apparatus of claim 1 , wherein the feedback for the current received character is added to the feedback output generated for the preceding character.
5 . The apparatus of claim 4 , wherein the feedback for the current received character cancels identical output in the feedback output generated for the preceding character.
6 . The apparatus of claim 1 , wherein the feedback for a first received character is based on feedback for the first received character and a starting feedback.
7 . The apparatus of claim 6 , wherein the data are a password and wherein the starting feedback is generated from an item of user data other than the password.
8 . The apparatus of claim 1 , wherein the processor is configured to process blocks of input characters to generate feedback output in each iteration.
9 . A method for providing feedback on input of data, the method being performed by a processor and comprising:
iteratively receiving a character of the data, the character being a first character or a character immediately following a preceding character in the data;
generating a non-cleartext feedback from the first character, or from the character immediately following a preceding character in the data and a non-cleartext feedback generated for the preceding character; and
outputting the non-cleartext feedback.
10 . The method of claim 9 , wherein also the outputting is iteratively performed.
11 . The method of claim 9 , wherein the non-cleartext feedback for the first character is generated from the first character and a starting feedback.
12 . The method of claim 9 , wherein the non-cleartext feedback is an image is generated from at least one of geometric shapes, colors, rotations of the image and flips of the image.
13 . The method of claim 9 , wherein the non-cleartext feedback is made up of at least one of sounds, haptic signals in a virtual scene and a sequence of moves of an avatar.
14 . A non-transitory computer program storage device storing instructions that, when executed by a processor performs the method of claim 9 .