Ledger - Blue

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Maker Ledger
Quantity Unknown

Ledger Blue is the most advanced hardware security gear on the market. It boasts multi application execution, and packs enterprise-level crypto-capabilities into a lightweight handheld device designed and crafted in France. It is architected around a Secure Element, featuring a touchscreen and USB connectivity.


About the device

A powerful and flexible device

Blue is the latest generation product from Ledger, the result of more than two years of research and development. This high-end device embeds a large touchscreen to securely manage transactions and complex smart contracts. Its slick yet robust casing encloses the best-in-class technology built upon Blockchain Open Ledger Operating System (BOLOS), a powerful and flexible platform.

Packed with hardware features

The Ledger Blue is based on a dual-chip architecture embedding a ST31 Secure Element and a STM32 microcontroller thus achieving a fully isolated environment. It features a LED-backlit color touchscreen to navigate easily and validate transactions. It is powered by a lipo rechargeable battery and communicates with USB devices.

Designed for multiple secure apps

Thanks to its modular architecture, the Ledger Blue runs multiple dedicated companion apps in full isolation on top of its firmware. The strong security model allows to add new cryptocurrencies or apps without the risk of compromission of the master seed. Transaction integrity is ensured by the WYSIWYS paradigm (What You See Is What You Sign). The flexibility of the device enables enterprise level usage: with all major crypto libraries embedded in the firmware, any type of blockchain can be supported.

Main features

  • Cryptographic secrets protected by an EAL6+ Secure Element (ST31G480)
  • 3″5 inches color touch screen interface
  • BLE 4.1, USB 2.0 FS
  • 500mA lipo rechargeable battery
  • What You See Is What You Sign (WYSIWYS) security paradigm
  • 4–8 digits PIN security lock for identity attestation
  • passphrase support
  • alternate PIN for plausible deniability
  • Built-in onboarding and configuration (seed generation and recovery)
  • BIP39 seed standard (12/18/24 words), compatible with all Ledger products
  • Certified FIDO U2F (second factor authentication for Google, Github, Dropbox, Dashlane and many others)
  • Multi-apps quick launch dashboard
  • Ledger Manager: install & remove apps, firmware upgrades
  • Strong and durable casing, anti scratch glass
  • Enterprise app licensing & support available

Ledger Blue is built upon the BOLOS platform, a powerful and flexible Operating System allowing secure execution of multiple Open Source applications in full isolation. Developers can leverage the SDK to deploy custom applications and use the Blue as a trust device for any kind of use case.

Blockchain support

  • Bitcoin (COLU, Counterparty support)
  • Ethereum (ETH/ETC), tokens & contracts support
  • All bitcoin clones: Litecoin, Dogecoin, Zcash…
  • Monero*
  • Tendermint*
  • Hyperledger*
  • Sidechains (Liquid)*

* in development

Software support

  • Ledger Wallet Bitcoin Chrome app (Bitcoin, Litecoin, Dogecoin, Zcash, Dash)
  • Ledger Wallet Ethereum Chrome app (ETH/ETC)
  • MyEtherWallet.com (Chrome, Opera, Firefox with U2F extension)
  • GreenBits & GreenAddress
  • Copay (Chrome app)
  • Electrum
  • Mycelium

Cryptographic support

  • Message Digest: RIPEMD160, SHA224, SHA256, SHA384, SHA512, SHA3, SHA3-XOF, KECCAK
  • Cryptography Key, with key generation: DES (64, 128,192 bits), AES (128 bits), ECC (256 bits), RSA (1024, 2048, 3072,4096 bits)
  • RSA encryption with PKCS1 v1.5, PKCS1 OEAP, NOPAD schemes
  • HMAC Signature: HMAC-SHA256, HMAC-SHA512
  • RSA Signature with PKCS1 v1.5, PKCS1 PSS schemes
  • Elliptic Curve Signature: ECDSA/EC-Schnorr (SECP256K1, SECP256R1, Brainpool256R1, Brainpool256T1), EdDSA (Ed25519)
  • Elliptic Curve Diffie Hellman: ECDH (SECP256K1, SECP256R1, Brainpool256R1, Brainpool256T1, Curve25519)
  • Symmetric Cryptography: DES, Triple-DES, AES with ISO9797M1, ISO9797M2, NOPAD schemes
  • Random Number Generation: RND, Prime RND (hardware support TRNG)