Securely exchanging lists of values without revealing their full content

A system for providing an encrypted executable object comprising data values, comprising:

• at least one processor adapted to execute code, said code comprising:
• code instructions to receive a query defined by at least one query parameter;
• code instructions to obtain a plurality of data values complying with said at least one query parameter;
• code instructions to create an encrypted executable object comprising the plurality of data values, each of said plurality of data values is accessible in said encrypted executable object using said each data value as an encryption key;
• and
• code instructions to provide said encrypted executable object which indicates, in response to an access with at least one questioning data value such as said plurality of data values serving as said encryption key, presence or absence of said at least one questioning data value in said encrypted executable object according to said encryption key.

A computer implemented method of querying an encrypted executable object comprising data values, comprising:

• issuing a query defined by at least one query parameter;
• receiving an encrypted executable object created in response to said query, said encrypted executable object comprising a plurality of data values complying with said at least one query parameter;
• accessing said encrypted executable object with at least one questioning data value such as said plurality of data values, said at least one questioning data value serves as an encryption key;
• and
• receiving an indication of presence or absence of said at least one questioning data value in said encrypted executable object according to said encryption key.

A system for querying an encrypted executable object comprising data values, comprising:

• at least one processor adapted to execute code, said code comprising:
• code instructions to issue a query defined by at least one query parameter;
• code instructions to receive an encrypted executable object created in response to said query, said encrypted executable object comprising a plurality of data values complying with said at least one query parameter;
• code instructions to access said encrypted executable object with at least one questioning data value such as said plurality of data values, said at least one questioning data value serves as an encryption key;
• and
• code instructions to receive an indication of presence or absence of said at least one questioning data value in said encrypted executable object according to said encryption key.

A computer implemented method of providing an encrypted dataset comprising data values, comprising:

• receiving a query defined by at least one query parameter;
• obtaining a plurality of data values complying with said at least one query parameter;
• creating an encrypted dataset comprising said plurality of data values, each of said plurality of data values is encrypted using said each data value as an encryption key;
• and
• providing said encrypted dataset, which using a decryption tool, indicates, in response to an access with at least one questioning data value such as said plurality of data values serving as said encryption key, presence or absence of said at least one questioning data value in said encrypted dataset according to said encryption key.

A computer implemented method of querying an encrypted dataset comprising data values, comprising:

• issuing a query defined by at least one query parameter;
• receiving an encrypted dataset created in response to said query, said encrypted dataset comprising a plurality of data values complying with said at least one query parameter;
• accessing, using a decryption tool, said encrypted dataset with at least one questioning data value such as said plurality of data values, said at least one questioning data value serves as an encryption key;
• and
• receiving, using said decryption tool, an indication of presence or absence of said at least one questioning data value in said encrypted dataset according to said encryption key.