最近发现了一个ATECC608A完美兼容替代加密芯片，型号为MODSEMI的MOD8ID，真正做到了P2P兼容感人的是，没有必要改变主机端的原始Cryptolib完美适配，无需更改任何代码和硬件。

ECCDSA密钥对签名、验签、SecureBOOT，TLS等接口功能都很完美，硬件防护也做得非常到位。不仅如此，也向下兼容了ATECC508系列具有国密安全等功能。

支持DFN8小封装和SOP8。

     /* [0] init: I2C通信连接、测试(使用)MOD8ID通信调试，I2C请参考驱动移植ecc_i2c.c） */     status = mse_init(&cfg_mod8_i2c);     if (status != MSE_SUCCESS)     {         printf(" mse_init() failed with ret=0xd\n", status);         goto exit;     }     printf(" init OK.\n");      /* [1] Load configuration:加载配置并锁定配置区(只执行一次，注：锁定后无法解锁） */     status = app_load_configuration();      if (status != MSE_SUCCESS)      {          printf(" APP - Load configuration failed\n");          goto exit;      }      printf(" Load configuration OK.\n");      /* [2] Write Slot Data:生成密钥、写入密钥和应用配套数据，锁定数据区(锁定后无法解锁)，前提条件:[1] */      status = app_write_key();      if (status != MSE_SUCCESS)      {         printf(" APP - Write key failed\n");          goto exit;      }      printf(" Write key OK.\n");      /* [3] Sign_Verify: 签名、验签、加解密等应用，[2] */      status = app_sign_verify();      if (status != MSE_SUCCESS)      {          printf(" APP - Sign_Verify failed\n");          goto exit;      }      printf(" Sign_Verify OK.\n");      /* [4] HMAC: [2] */      status = app_hmac();      if (status != MSE_SUCCESS)     {     printf(" APP - HMAC failed\n");          goto exit;     }      printf(" HMAC OK.\n");

Key features

• Securityco-processorwithcryptographic algorithm and key storage
  1. 1. High-end security controller
     2. Protected Storage for Keys, Certificates orData
• Hardware Support for Asymmetric Sign,Verify,authentication,Key Agreement:
  1. 1. Hardware cryptographic algorithm processor:SM2,ECC-P256, SHA-256, TRNG
     2. ECDSA: Elliptic Curve Digital Signature
     3. ECDH: Elliptic Curve Diffie-Hellman
     4. SM2: Diffie-Hellman Ephemeral (ECDHE) over the SM2 elliptic curve
• Hardware Support for SymmetricAlgorithms:
  1. 1. SHA-256 & HMAC
     2. SM4:Block-ciphersymmetricalgorithmEncrypt/Decrypt
     3. AES-128/256: Encrypt/Decrypt
• Networking Key ManagementSupport:
  1. 1. securitykey generation and key agreement
     2. Communication dataencryption with protected
     3. Turnkey PRF/HKDF calculation for TLS
• Security update and firmwareSupport:
  1. 1. High security ECDSA firmware signaturevalidation
     2. Full life cyclesecure bootvalidation
     3. Firmware upgrade protection and data encryption protection
• Internal High-Quality NIST Standard Random Number Generator(RNG)
• Up to 5kB of user security storage to store extended security information
• Unique SerialNumber
• High-Endurance MonotonicCounters
• Interface Options Available400k/1 MHz Standard I2C Interface
• Fast and easy integration
• DFN8 andSOP8 Packages

关于ATECC608和MOD8ID可私信使用加密芯片进行技术和调试。