# US 2019/0171802 A1 · Electronic device and controlling method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0171802 A1 - Document ID: US20190171802A1 - Status: Published application - Kind: A1 - Application number: 16/032,916 - Filed: 2018-07-11 - Published: 2019-06-06 - Earliest claimed: 2017-12-01 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Xuan Hoa LE; Van Vinh VU - Web page: https://patentgrep.com/patent/US20190171802A1 ## CPC - G06F 21/31: User authentication - G06F 21/32: using biometric data, e.g. fingerprints, iris scans or voiceprints - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - G06F 3/0488: using a touch-screen or digitiser, e.g. input of commands through traced gestures - G06F 21/6209: {to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself} - H04L 9/3226: {using a predetermined code, e.g. password, passphrase or PIN (network architectures or network communication protocols for supporting authentication of entities using passwords in a packet data network H04L63/083)} - G06F 9/451: Execution arrangements for user interfaces - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract An electronic device is provided. The electronic device according to an example includes an input unit, a storage configured to store reference information that is used for authentication, and a processor configured to, based on authentication information for encrypting contents being input, identify whether the authentication information is identical to the reference information, and the encrypted contents include the authentication information and time information related to provision of the encrypted contents. ## Claims ### Claim 1 An electronic device comprising: an input unit; a storage configured to store reference information that is used for authentication; and a processor configured to: based on authentication information for encrypting contents being input, identify whether the authentication information is identical to the reference information, and based on the authentication information being identical to the reference information, encrypt contents input through the input unit in real time, wherein the encrypted contents include the authentication information and time information related to provision of the encrypted contents. ### Claim 2 (depends on 1) The electronic device as claimed in claim 1, further comprising: a display, wherein the time information is information regarding a time during which the encrypted content is displayed on the display after being decrypted according to the authentication information. ### Claim 3 (depends on 1) The electronic device as claimed in claim 1, wherein: the processor is configured to encrypt the contents based on an encryption mode selected from a plurality of encryption modes, and the plurality of encryption modes include a global encryption mode for encrypting the input contents and a local encryption mode for encrypting a portion of the input contents that satisfy a predetermined condition. ### Claim 4 (depends on 3) The electronic device as claimed in claim 3, wherein the predetermined condition is at least one of a condition in which a specific keyword is included or a condition in which a touch input is input. ### Claim 5 (depends on 1) The electronic device as claimed in claim 1, wherein the authentication information comprises at least one of a PIN, password, fingerprint, signature, face recognition information, iris recognition information, voice recognition information, or email account. ### Claim 6 (depends on 1) The electronic device as claimed in claim 1, wherein the processor is further configured to: based on authentication information for decrypting the encrypted contents being input, identify whether the input authentication information s identical to authentication information that is used to encrypt the contents, and based on the input authentication information being identical to the authentication information that is used to encrypt the contents, obtain the time information by decrypting the encrypted contents and provides the decrypted contents based on the obtained time information. ### Claim 7 (depends on 6) The electronic device as claimed in claim 6, further comprising: a display, wherein the processor is configured to display the decrypted contents on the display for a predetermined time based on the time information, and remove the displayed contents from the display after the predetermined time elapses. ### Claim 8 (depends on 7) The electronic device as claimed in claim 7, wherein the processor is configured to realign remaining contents to fill an area where the removed contents were displayed. ### Claim 9 A controlling method of an electronic device that stores reference information used for authentication, the method comprising: based on authentication information for encrypting contents being input, identifying whether the authentication information is identical to the reference information; and based on the authentication information being identical to the reference information, encrypting contents input through an input unit in real time, wherein the encrypted contents include the authentication information and time information related to provision of the encrypted contents. ### Claim 10 (depends on 9) The method as claimed in claim 9, wherein the time information is information regarding a time during that the encrypted content is displayed on a display after being decrypted according to the authentication information. ### Claim 11 (depends on 9) The method as claimed in claim 9, wherein: encrypting the contents comprises encrypting the contents based on an encryption mode selected from a plurality of encryption modes, and the plurality of encryption modes include a global encryption mode for encrypting the input contents and a local encryption mode for encrypting some a portion of the input that satisfy a predetermined condition. ### Claim 12 (depends on 11) The method as claimed in claim 11, wherein the predetermined condition is at least one of a condition in which a specific keyword is included or a condition in which a touch input is input. ### Claim 13 (depends on 9) The method as claimed in claim 9, wherein the authentication information comprises at least one of a PIN, password, fingerprint, signature, face recognition information, iris recognition information, voice recognition information, or email account. ### Claim 14 (depends on 9) The method as claimed in claim 9, further comprising: based on authentication information for decrypting the encrypted contents being input, identifying whether the input authentication information is identical to authentication information that is used to encrypt the contents; based on the input authentication information being identical to the authentication information that is used to encrypt the contents, obtaining the time information by decrypting the encrypted contents; and providing the decrypted contents based on the obtained time information. ### Claim 15 (depends on 14) The method as claimed in claim 14, wherein providing the decrypted contents comprises: displaying the decrypted contents on the display for a predetermined time based on the time information; and removing the displayed contents on the display after the predetermined time elapses. ### Claim 16 (depends on 15) The method as claimed in claim 15, wherein providing the decrypted contents further comprises realigning remaining contents to fill an area where the removed contents were displayed. ### Claim 17 A non-transitory computer-readable medium comprising program code, which when executed by a processor, causes an electronic device to: store reference information that is used for authentication, based on authentication information for encrypting contents, the encrypted contents including the authentication information and time information related to provision of the encrypted contents, being input, identify whether the authentication information is identical to the reference information, and based on the authentication information being identical to the reference information, encrypt contents input through an input unit of the electronic device in real time. ### Claim 18 (depends on 17) The non-transitory computer-readable medium of claim 17, wherein the time information is information regarding a time during which the encrypted content is displayed on a display of the electronic device, after being decrypted according to the authentication information. ### Claim 19 (depends on 17) The non-transitory computer-readable medium of claim 17, further comprising program code, which when executed by the processor, cause the electronic device to: encrypt the contents based on an encryption mode selected from a plurality of encryption modes, wherein the plurality of encryption modes include a global encryption mode for encrypting the input contents and a local encryption mode for encrypting a portion of the input contents that satisfy a predetermined condition. ### Claim 20 (depends on 19) The non-transitory computer-readable medium of claim 19, wherein the predetermined condition is at least one of a condition in which a specific keyword is included or a condition in which a touch input is input at the electronic device.