hardware wallets

Blockstream Frames Jade Security After Wallet RNG Scare Blockstream has released Jade firmware version 1.0.41 with new features, fixes and security updates, while addressing user concerns after the reported Coldcard random number generation fallout. The Jade firmware team says Jade is not...

Existing Wallet Chips Meet a Quantum-Signature Test Blockstream says benchmark implementations of several hash-based post-quantum signature schemes ran on four widely used hardware wallet families. The result does not settle the whole quantum-migration problem for Bitcoin, but it challenges the...

Inside Jade's PIN Protection Model Blockstream has published a detailed explanation of how its Jade hardware wallet protects PIN access without a dedicated secure element chip. The company says Jade uses a Virtual Secure Element, splitting the material needed to decrypt the wallet between the...

Blockstream casts Coldcard warning as a fresh-key migration problem Blockstream says its Jade hardware wallet lineup is unaffected by a recent Coldcard Mk3 security advisory. The company framed the reported issue as a seed-generation problem that cannot be solved by a firmware update once weak...