Insights

Insights

Keycard blog tag

Articles tagged Insights

Reproducible builds in hardware wallets: why "same source, same binary" matters

Diagram showing reproducible build verification between hardware wallet source code and shipped firmware binary

Smartcard hardware wallets: how a secure element stores and signs

Smartcard hardware wallet tapped via NFC to sign a transaction using an on-card secure element chip.

Best air-gapped hardware wallets compared: QR signing, open source, and secure elements

Air gapped hardware wallet signing a transaction via QR code, keeping private keys isolated from any networked device.

Open-source Ledger alternatives compared: Keycard, Trezor, Coldcard and more

Comparison of open-source hardware wallets Keycard, Trezor, Coldcard, and BitBox02 as alternatives to Ledger.

What Is an Air-Gapped Hardware Wallet? (QR Signing Explained)

An air gapped hardware wallet protects assets by eliminating all wireless and physical network connections

Open-Source Hardware Wallets: Verifiable, Auditable, Reproducible

Keycard open source hardware wallet firmware provides public code visibility to eliminate hidden vendor backdoors.