ntag424的Originality Signature

[qinzhi]

你好：

我司已经签署保密协议，但是不知道如何使用natg424 uid与公钥，Read_Sig获取的56字节签名在嵌入式硬件平台实现ECDSA验证。文档上an11350没有详细步骤实现ECDSA verification(secp224r1),能否告诉我申请哪些资料来实现，谢谢。

[EduardoZamora]

Hello @qinzhi

Hope you are doing well.

My apologies, the Application Note that is used as reference for NTAG Signature Validation (AN11350) is intended for other NTAG products holding 32-byte signature and different curves.

Available procedure for asymmetric signature verification is described in NTAG 424 DNA and NTAG 424 DNA TagTamper features and hints, Section 7.2. However, there is no information specific to ECDSA verification as this procedure is done outside the card.

I apologize again for the inconvenience.

Regards,
Eduardo.