# Title: Secure 3 Click Board™ ## Description: The Secure 3 Click Board™ carries the ATSHA204A, a cryptographic coprocessor with secure hardware-based key storage from Microchip. The click is designed to run on either 3.3V or 5V power supply. The Secure 3 Click Board™ communicates with the target microcontroller over an I2C interface. It is ideal to use for: Secure download and boot - authentication and protect code in-transit Ecosystem control - ensure only OEM/licensed nodes and accessories work Anti-cloning - prevent building with identical BOM or stolen code Message security - authentication, message integrity, and confidentiality of network nodes (IoT) NOTE: The Secure 3 Click Board™ comes with stacking headers which allow you to combine it with other clicks more easily by using just one mikroBUS™ socket. ATSHA204A Features The ATSHA204A is a member of the Microchip CryptoAuthentication™ family of high-security hardware authentication devices, which uses Secure Hash Algorithm (SHA-256) with 256-bit key length, message authentication code (MAC) and hash-based message authentication code (HMAC) options. It has a flexible command set that allows use in many applications. The ATSHA204A device includes an Electrically Erasable Programmable Read-Only Memory (EEPROM) array that can be used for key storage, miscellaneous read/write data, read-only, secret data, consumption logging, and security configuration. Access to the various sections of memory can be restricted in a variety of ways, and the configuration can then be locked to prevent changes. SPECIFICATIONS Type Encryption Applications The Secure 3 Click Board™ can be used for the storage of certificates, miscellaneous read/write, read-only or secret data, consumption logging, and security configurations On-board modules ATSHA204A - a cryptographic coprocessor with secure hardware-based key storage Key Features Superior SHA-256 hash algorithm with 256-bit key length, message authentication code (MAC) and hash-based message authentication code (HMAC) options, storage for up to sixteen keys Interface I2C Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V PINOUT DIAGRAM This table shows how the pinout of the Secure 3 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 NC NC 2 RST INT 15 NC NC 3 CS TX 14 NC NC 4 SCK RX 13 NC NC 5 MISO SCL 12 SCL I2C clock NC 6 MOSI SDA 11 SDA I2C data Power supply +3.3V 7 3.3V 5V 10 +5V Power supply Ground GND 8 GND GND 9 GND Ground JUMPERS AND SETTINGS Designator Name Default Position Default Option Description JP1 VIO SEL. Left 3V3 Power Supply Voltage Selection 3V3/5V, left position 3V3, right position 5V ## Product type: Click Board ## Vendor: Mikroelektronika d.o.o. ## Tags: Click Board, Encrypt, MikroE, Misc, Security ## Price range: 7.7 - 7.7 GBP ## Link: https://thedebugstore.com/products/mikroe-2761-secure-3-click-board-uk ## Compare-at price range: 11.0 - 11.0 GBP ## Options - Title: Default Title ## Collections - [New Products](https://thedebugstore.com/a/llms/collections/new-products-debug-store) - [Mikroelektronika d.o.o. (MikroE)](https://thedebugstore.com/a/llms/collections/mikroelektronika-catalogue-uk) - [Miscellaneous Click Boards™](https://thedebugstore.com/a/llms/collections/miscellaneous-click-boards-catalogue) - [MikroE Click Boards™](https://thedebugstore.com/a/llms/collections/mikroe-click-boards-catalogue-uk) - [Google Shopping - invalid product](https://thedebugstore.com/a/llms/collections/google-shopping-valid-products) - [Security Click Boards™](https://thedebugstore.com/a/llms/collections/security-click-boards-catalogue) - [Encryption Click Boards™](https://thedebugstore.com/a/llms/collections/encryption-click-boards-catalogue) - [Click Boards™ Summer Sale](https://thedebugstore.com/a/llms/collections/inventory-sale) - [MikroE Sale](https://thedebugstore.com/a/llms/collections/mikroe-sale) - [MIKROE Stock](https://thedebugstore.com/a/llms/collections/mikroe-products-in-stock-sale) ## Variants - Default Title, SKU: MIKROE-2761, Available: yes, Inventory: 1 ## Metafields - full_description:

The Secure 3 Click Board™ carries the ATSHA204A, a cryptographic coprocessor with secure hardware-based key storage from Microchip. The click is designed to run on either 3.3V or 5V power supply. The Secure 3 Click Board™ communicates with the target microcontroller over an I2C interface.

It is ideal to use for:

NOTE: The Secure 3 Click Board™ comes with stacking headers which allow you to combine it with other clicks more easily by using just one mikroBUS™ socket.

ATSHA204A Features

The ATSHA204A is a member of the Microchip CryptoAuthentication™ family of high-security hardware authentication devices, which uses Secure Hash Algorithm (SHA-256) with 256-bit key length, message authentication code (MAC) and hash-based message authentication code (HMAC) options. It has a flexible command set that allows use in many applications.

MikroE Storage Secure 3 click

The ATSHA204A device includes an Electrically Erasable Programmable Read-Only Memory (EEPROM) array that can be used for key storage, miscellaneous read/write data, read-only, secret data, consumption logging, and security configuration. Access to the various sections of memory can be restricted in a variety of ways, and the configuration can then be locked to prevent changes.

SPECIFICATIONS

Type Encryption
Applications The Secure 3 Click Board™ can be used for the storage of certificates, miscellaneous read/write, read-only or secret data, consumption logging, and security configurations
On-board modules ATSHA204A - a cryptographic coprocessor with secure hardware-based key storage
Key Features Superior SHA-256 hash algorithm with 256-bit key length, message authentication code (MAC) and hash-based message authentication code (HMAC) options, storage for up to sixteen keys
Interface I2C
Compatibility mikroBUS
Click board size M (42.9 x 25.4 mm)
Input Voltage 3.3V or 5V

PINOUT DIAGRAM

This table shows how the pinout of the Secure 3 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Mikrobus logo.png Pin Notes
NC 1 AN PWM 16 NC
NC 2 RST INT 15 NC
NC 3 CS TX 14 NC
NC 4 SCK RX 13 NC
NC 5 MISO SCL 12 SCL I2C clock
NC 6 MOSI SDA 11 SDA I2C data
Power supply +3.3V 7 3.3V 5V 10 +5V Power supply
Ground GND 8 GND GND 9 GND Ground

JUMPERS AND SETTINGS

Designator Name Default Position Default Option Description
JP1 VIO SEL. Left 3V3 Power Supply Voltage Selection 3V3/5V, left position 3V3, right position 5V

 

 
- description_tag: The Secure 3 Click Board™ carries the ATSHA204A, a cryptographic coprocessor with secure hardware-based key storage from Microchip. Available from The DebugStore UK. - title_tag: MikroE Secure 3 Click Board™ (MIKROE-2761) - manufacturer: Mikroelektronika d.o.o. - warranty: 12 months - amazon_enable: TRUE - amazon_title: Secure 3 Click Board - amazon_product_type: computercomponent - amazon_block: FALSE - amazon_prime_enable: FALSE - amazon_search: MikroElektronika Microelectronica MIKROE-1100 - amazon_uk_price: 7.92 - amazon_uk_currency: GBP - amazon_de_currency: EUR - amazon_de_price: 8.9496 - amazon_fr_currency: EUR - amazon_fr_price: 8.9496 - amazon_es_currency: EUR - amazon_es_price: 8.9496 - amazon_nl_currency: EUR - amazon_nl_price: 8.9496 - amazon_it_currency: EUR - amazon_it_price: 8.9496 - amazon_se_curency: SEK - amazon_se_price: 90.288 - amazon_product_id: 8606018711505 - amazon_product_id_type: EAN - amazon_update: Update - amazon_short_description: The Secure 3 Click Board™ carries the ATSHA204A, a cryptographic coprocessor with secure hardware-based key storage from Microchip. The Click Board™ is designed to run on either 3.3V or 5V power supply. Secure 3 Click Board™ communicates with the target microcontroller over an I2C interface.NOTE: The Click Board™ comes with stacking headers which allow you to combine it with other Click Boards™ more easily by using just one mikroBUS socket. - amazon_long_description:

The Secure 3 Click Board™ carries the ATSHA204A, a cryptographic coprocessor with secure hardware-based key storage from Microchip. The Click is designed to run on either 3.3V or 5V power supply. Secure 3 Click communicates with the target microcontroller over an I2C interface.

It is ideal to use for:

NOTE: The Click comes with stacking headers which allow you to combine it with other Clicks more easily by using just one mikroBUS socket.

ATSHA204A Features

The ATSHA204A is a member of the Microchip CryptoAuthentication' family of high-security hardware authentication devices, which uses Secure Hash Algorithm (SHA-256) with 256-bit key length, message authentication code (MAC) and hash-based message authentication code (HMAC) options. It has a flexible command set that allows use in many applications.

The ATSHA204A device includes an Electrically Erasable Programmable Read-Only Memory (EEPROM) array that can be used for key storage, miscellaneous read/write data, read-only, secret data, consumption logging, and security configuration. Access to the various sections of memory can be restricted in a variety of ways, and the configuration can then be locked to prevent changes.

- amazon_main_image: https://www.thedebugstore.com/images/product/lg-secure-3-click-board.jpg - amazon_browse_node: 428655031 - related_products: MIKROE-2522,MIKROE-1926 - mpn: MIKROE-2761 - backorder_label: If no stock shown above, check availability - badge: - widget:

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- google_product_category: 2082 - condition: new - custom_product: false - mpn: MIKROE-2761 - google_product_category: Electronics - custom_label_0: Click Board - examples:

Code examples for the Secure 3 Click Board™, written for MikroElektronika hardware and compilers are available on Libstock.

CODE SNIPPET

The following code snippet creates a MAC for a given input and then checks if it is valid using verify function.

01 static void MACTest ()
02 {
03     //Generates nonce for use in MAC generation
04     memset (bufferIn, 0x45, 128);
05     if (atcab_nonce(bufferIn) == ATCA_SUCCESS)
06     {
07         LOG( "rnrn Nonce generated." );
08     }
09     else  LOG( "rnrn Nonce generation failed..." );
10     delay_ms (1500);
11 
12    //Generates MAC for given input
13     memset (bufferOut, 0x00, 128);
14     memset (bufferIn, 0x14, 128);
15     if (atcab_mac( 0, 0, bufferIn, bufferOut ) == ATCA_SUCCESS)
16     {
17         LOG( "rnrn MAC generated: " );
18         outputHex (bufferOut, 32);
19     }
20     else  LOG( "rnrn Mac generation failed..." );
21      delay_ms (1500);
22 
23    //Checks if the generated MAC is valid
24     memset (bufferIn, 0x14, 128);
25     if (atcab_checkmac( 0, 0, bufferIn, bufferOut, otherData) == ATCA_SUCCESS)
26     {
27         LOG( "rnrn Check MAC successful. " );
28     }
29     else  LOG( "rnrn Check MAC failed..." );
30 }
- attachments: [{"download_file":[{"download_file":"Secure 3 Click Board™ Schematic"}],"download_filetype":[{"download_filetype":"pdf"}]},{"download_file":[{"download_file":"Microchip ATSHA204A Cryptographic Coprocessor Datasheet"}],"download_filetype":[{"download_filetype":"pdf"}]}] - device_vendor: Microchip Technology - device_type: ATSHA204A-MAHDA-T - warranty: 12 months - brand: MikroE - manufacturer: Mikroelektronika d.o.o. - brands: gid://shopify/Metaobject/56256004319 - breadcrumbs: ["gid://shopify/Collection/447955239135","gid://shopify/Collection/241680580797","gid://shopify/Collection/272752836797"] - customhs_code: 847330 - detailed_description: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"The "},{"type":"text","value":"Secure 3 Click Board™","bold":true,"italic":true},{"type":"text","value":" carries the ATSHA204A, a cryptographic coprocessor with secure hardware-based key storage from Microchip. 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The Secure 3 Click Board™ carries the ATSHA204A, a cryptographic coprocessor with secure hardware-based key storage from Microchip. The Click Board™ is designed to run on either 3.3V or 5V power supply. Secure 3 Click Board™ communicates with the target microcontroller over an I2C interface.

NOTE: The Secure 3 Click Board™ comes with stacking headers which allow you to combine it with other Click Boards™ more easily by using just one mikroBUS socket.