Part 2/11:
Traditionally, SeedSigner allowed users to generate, backup, and restore recovery seeds, primarily storing private keys locally on the device. However, recent developments have added layers of security by integrating secure element-backed storage and smart card-based transaction signing.
The key innovation is enabling users to move private keys onto secure elements, such as specialized smart cards, while maintaining fully stateless operation during transaction signing. This means that the device itself never directly processes or holds private keys during signing, drastically reducing attack surfaces—even if malicious data resides on the SD card or elsewhere.