ATSHA204A-SSHDA-B
The Microchip SHA-based CryptoAuthentication crypto element devices have been architected to provide flexible user-configured security to enable a wide range of authentication models. The ATSHA204A is the first device in the SHA device group. The ATECC108A and ATECC508A are supersets of the ATSHA204A and thus upward compatible. As with all CryptoAuthentication devices, the ATSHA204A is easy to design in with no crypto expertise required.
Secure Hash Algorithm (SHA) algorithms are widely used in most cryptographic systems and remain an important component in most modern authentication protocols. These devices support the SHA-256 standard. The ATSHA204A is the most cost-effective solution in the Microchip CryptoAuthentication portfolio. It integrates the SHA-256 hash algorithm with a 4.5Kb EEPROM and provides robust hardware authentication using secure key/data storage. The tiny packaging and a single-wire interface make the device ideal for handheld electronic systems and any space-constrained embedded system.
CryptoAuthentication devices in the SHA mode include client and host security capabilities that offload key storage and algorithm execution from the microcontroller, significantly reducing system cost and complexity. SHA based symmetric authentication is fast relative to asymmetric approaches, making the ATSHA204A a good choice with speed (and/or cost) are important considerations. CryptoAuthentication devices have full metal shields over all of the internal circuitry, so that if an attacker cuts or short circuits any trace in the shield, the product stops functioning. Additional security features include internal clocks and voltage generation, encrypted memories, tamper detection, and fully secure production test methodologies. With the ATSHA204A implementing host-side security to provide a full system solution is now easier than ever.
The Microchip's ATSHA204A is a full turnkey security device. It includes a 4.5Kb EEPROM divided into 16 slots. This array can be used for storage of keys, miscellaneous read/write, read-only, password or secret data, and consumption tracking. Access to the various sections of memory can be restricted in a variety of ways and then the configuration locked to prevent changes.
Access to the chip is through a standard I2C interface at speeds up to 1Mb/sec. The chip also supports a single-wire interface that can reduce the number of GPIOs required on the system processor and/or reduce the number of pins on connectors. It is compatible with most UART or serial I/O controllers. System integration is eased with a wide supply voltage range and an ultra-low sleep current of less than 100nA.
Microchip基于SHA的加密认证加密元素设备旨在提供灵活的用户配置安全性，以支持各种认证模式。ATSHA204A是SHA设备组中的第一个设备。ATECC108A和ATECC508A是ATSHA204A的超集，因此向上兼容。与所有加密认证设备一样，ATSHA204A易于设计，不需要任何加密专业知识。
安全哈希算法(SHA)广泛应用于大多数密码系统中，并且仍然是大多数现代认证协议中的重要组成部分。这些设备支持SHA-256标准。ATSHA204A是微芯片密码认证产品组合中最具成本效益的解决方案。它将SHA-256哈希算法与4.5Kb EEPROM集成在一起，并使用安全的密钥/数据存储提供强大的硬件认证。微小的封装和单线接口使该器件成为手持电子系统和任何空间受限的嵌入式系统的理想选择。
SHA模式下的加密认证设备包括客户端和主机安全功能，可从微控制器卸载密钥存储和算法执行，从而显著降低系统成本和复杂性。相对于非对称方法，基于SHA的对称认证速度更快，在速度(和/或成本)是重要考虑因素的情况下，ATSHA204A是一个不错的选择。加密认证设备在所有内部电路上都有全金属屏蔽，因此如果攻击者切断或短路屏蔽中的任何迹线，该产品就会停止工作。其他安全特性包括内部时钟和电压生成、加密存储器、篡改检测和完全安全的生产测试方法。有了ATSHA204A，实现主机端安全以提供完整的系统解决方案变得前所未有的简单。
该芯片的ATSHA204A是一个完整的交钥匙安全设备。它包括一个分成16个插槽的4.5Kb EEPROM。该数组可用于存储密钥、杂项读/写、只读、密码或秘密数据以及消费跟踪。可以通过各种方式限制对存储器各部分的访问，然后锁定配置以防止更改。
对芯片的访问是通过标准的I2速度高达1Mb/秒的c接口。该芯片还支持单线接口，可以减少系统处理器上所需的GPIOs数量和/或减少连接器上的引脚数量。它与大多数UART或串行I/O控制器兼容。宽电源电压范围和低于100nA的超低休眠电流使系统集成变得更加容易。
Product Features 产品特性
- Cost-effective Symmetric Authentication Solution
- Fast Authentication
- Easy Key Management
- Best suited for counterfeit prevention
- Crypto Element with Protected Hardware-based Key Storage
- Secure Symmetric Authentication Device Host and Client Operations
- Superior SHA-256 Hash Algorithm with Message Authentication Code (MAC)
- and Hash-Based Message Authentication Code (HMAC) Options Best-in-class, 256-bit Key Length; Storage for Up to 16 Keys
- Guaranteed Unique 72-bit Serial Number
- Internal, High-quality Random Number Generator (RNG)
- 4.5Kb EEPROM for Keys and Data
- 512 bit OTP (One Time Programmable) Bits for Fixed Information Multiple I/O Options̶
- UART-compatible High-Speed, Single-Wire Interface
- 1MHz I2C Interface
- 2.0V to 5.5V Supply Voltage Range
- 1.8V to 5.5V Communications Voltage Range <150nA Sleep Current
- Secure Download and Boot Ecosystem Control
- Message Security
Anti-Cloning
- 经济高效的对称认证解决方案
- 快速认证
- 简单的密钥管理
- 最适合防伪
- 具有受保护的基于硬件的密钥存储的加密元件
- 安全的对称认证设备主机和客户端操作
- 具有消息认证码(MAC)的高级SHA-256哈希算法
- 和基于哈希的消息认证码(HMAC)选项同类最佳的256位密钥长度；最多可储存16把钥匙
- 保证唯一的72位序列号
- 内部高质量随机数发生器(RNG)
- 4.5Kb EEPROM用于存储密钥和数据
- 用于固定信息的512位OTP(一次可编程)位多个I/O Options̶
- UART兼容型高速单线接口
- 1MHz I2C接口
- 2.0V至5.5V电源电压范围
- 1.8V至5.5V通信电压范围< 150nA睡眠电流
- 安全下载和引导生态系统控制
- 消息安全性
- 反克隆
Parametrics 参数化
| Device Name | ATSHA204A |
| Algorithm Type | SHA256 |
| Standby Typical (uA) | 0 |
| Interface Type | Single-wire; I2C |
| 设备名称 | ATSHA204A |
| 算法类型 | SHA256 |
| 典型待机模式(uA) | 0 |
| 接口类型 | 单线；I2C |
ATSHA204A-SSHDA-B
The Microchip SHA-based CryptoAuthentication crypto element devices have been architected to provide flexible user-configured security to enable a wide range of authentication models. The ATSHA204A is the first device in the SHA device group. The ATECC108A and ATECC508A are supersets of the ATSHA204A and thus upward compatible. As with all CryptoAuthentication devices, the ATSHA204A is easy to design in with no crypto expertise required.
Secure Hash Algorithm (SHA) algorithms are widely used in most cryptographic systems and remain an important component in most modern authentication protocols. These devices support the SHA-256 standard. The ATSHA204A is the most cost-effective solution in the Microchip CryptoAuthentication portfolio. It integrates the SHA-256 hash algorithm with a 4.5Kb EEPROM and provides robust hardware authentication using secure key/data storage. The tiny packaging and a single-wire interface make the device ideal for handheld electronic systems and any space-constrained embedded system.
CryptoAuthentication devices in the SHA mode include client and host security capabilities that offload key storage and algorithm execution from the microcontroller, significantly reducing system cost and complexity. SHA based symmetric authentication is fast relative to asymmetric approaches, making the ATSHA204A a good choice with speed (and/or cost) are important considerations. CryptoAuthentication devices have full metal shields over all of the internal circuitry, so that if an attacker cuts or short circuits any trace in the shield, the product stops functioning. Additional security features include internal clocks and voltage generation, encrypted memories, tamper detection, and fully secure production test methodologies. With the ATSHA204A implementing host-side security to provide a full system solution is now easier than ever.
The Microchip's ATSHA204A is a full turnkey security device. It includes a 4.5Kb EEPROM divided into 16 slots. This array can be used for storage of keys, miscellaneous read/write, read-only, password or secret data, and consumption tracking. Access to the various sections of memory can be restricted in a variety of ways and then the configuration locked to prevent changes.
Access to the chip is through a standard I2C interface at speeds up to 1Mb/sec. The chip also supports a single-wire interface that can reduce the number of GPIOs required on the system processor and/or reduce the number of pins on connectors. It is compatible with most UART or serial I/O controllers. System integration is eased with a wide supply voltage range and an ultra-low sleep current of less than 100nA.
Microchip基于SHA的加密认证加密元素设备旨在提供灵活的用户配置安全性，以支持各种认证模式。ATSHA204A是SHA设备组中的第一个设备。ATECC108A和ATECC508A是ATSHA204A的超集，因此向上兼容。与所有加密认证设备一样，ATSHA204A易于设计，不需要任何加密专业知识。
安全哈希算法(SHA)广泛应用于大多数密码系统中，并且仍然是大多数现代认证协议中的重要组成部分。这些设备支持SHA-256标准。ATSHA204A是微芯片密码认证产品组合中最具成本效益的解决方案。它将SHA-256哈希算法与4.5Kb EEPROM集成在一起，并使用安全的密钥/数据存储提供强大的硬件认证。微小的封装和单线接口使该器件成为手持电子系统和任何空间受限的嵌入式系统的理想选择。
SHA模式下的加密认证设备包括客户端和主机安全功能，可从微控制器卸载密钥存储和算法执行，从而显著降低系统成本和复杂性。相对于非对称方法，基于SHA的对称认证速度更快，在速度(和/或成本)是重要考虑因素的情况下，ATSHA204A是一个不错的选择。加密认证设备在所有内部电路上都有全金属屏蔽，因此如果攻击者切断或短路屏蔽中的任何迹线，该产品就会停止工作。其他安全特性包括内部时钟和电压生成、加密存储器、篡改检测和完全安全的生产测试方法。有了ATSHA204A，实现主机端安全以提供完整的系统解决方案变得前所未有的简单。
该芯片的ATSHA204A是一个完整的交钥匙安全设备。它包括一个分成16个插槽的4.5Kb EEPROM。该数组可用于存储密钥、杂项读/写、只读、密码或秘密数据以及消费跟踪。可以通过各种方式限制对存储器各部分的访问，然后锁定配置以防止更改。
对芯片的访问是通过标准的I2速度高达1Mb/秒的c接口。该芯片还支持单线接口，可以减少系统处理器上所需的GPIOs数量和/或减少连接器上的引脚数量。它与大多数UART或串行I/O控制器兼容。宽电源电压范围和低于100nA的超低休眠电流使系统集成变得更加容易。
Product Features 产品特性
- Cost-effective Symmetric Authentication Solution
- Fast Authentication
- Easy Key Management
- Best suited for counterfeit prevention
- Crypto Element with Protected Hardware-based Key Storage
- Secure Symmetric Authentication Device Host and Client Operations
- Superior SHA-256 Hash Algorithm with Message Authentication Code (MAC)
- and Hash-Based Message Authentication Code (HMAC) Options Best-in-class, 256-bit Key Length; Storage for Up to 16 Keys
- Guaranteed Unique 72-bit Serial Number
- Internal, High-quality Random Number Generator (RNG)
- 4.5Kb EEPROM for Keys and Data
- 512 bit OTP (One Time Programmable) Bits for Fixed Information Multiple I/O Options̶
- UART-compatible High-Speed, Single-Wire Interface
- 1MHz I2C Interface
- 2.0V to 5.5V Supply Voltage Range
- 1.8V to 5.5V Communications Voltage Range <150nA Sleep Current
- Secure Download and Boot Ecosystem Control
- Message Security
Anti-Cloning
- 经济高效的对称认证解决方案
- 快速认证
- 简单的密钥管理
- 最适合防伪
- 具有受保护的基于硬件的密钥存储的加密元件
- 安全的对称认证设备主机和客户端操作
- 具有消息认证码(MAC)的高级SHA-256哈希算法
- 和基于哈希的消息认证码(HMAC)选项同类最佳的256位密钥长度；最多可储存16把钥匙
- 保证唯一的72位序列号
- 内部高质量随机数发生器(RNG)
- 4.5Kb EEPROM用于存储密钥和数据
- 用于固定信息的512位OTP(一次可编程)位多个I/O Options̶
- UART兼容型高速单线接口
- 1MHz I2C接口
- 2.0V至5.5V电源电压范围
- 1.8V至5.5V通信电压范围< 150nA睡眠电流
- 安全下载和引导生态系统控制
- 消息安全性
- 反克隆
Parametrics 参数化
| Device Name | ATSHA204A |
| Algorithm Type | SHA256 |
| Standby Typical (uA) | 0 |
| Interface Type | Single-wire; I2C |
| 设备名称 | ATSHA204A |
| 算法类型 | SHA256 |
| 典型待机模式(uA) | 0 |
| 接口类型 | 单线；I2C |
