SeedCash is an specialized device for ultimate security and control over your Bitcoin Cash (BCH). It empowers users to be their own bank, offering complete control over private keys and funds while remaining isolated from potential threats. SeedCash focuses exclusively on BCH security, providing a reliable, auditable, and user-friendly solution.
SeedCash implements multiple layers of security:
- Air-gapped operation: The device works offline, reducing exposure to online attack vectors.
- Amnesia / No memory: The device does not store any private keys or any data in memory after use.
- Source Available code: Publicly auditable to ensure trust and transparency.
- GPG-signed images: Each SeedCash .img file includes a digital signature for authenticity verification.
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Generate Seed: Securely create private keys.
- BIP-39: 12 words
- BIP-39: 15 words
- BIP-39: 18 words
- BIP-39: 21 words
- BIP-39: 24 words
- SLIP-39: 20 words
- SLIP-39: 33 words
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Load Seed: Securely introduce private keys.
- BIP-39: 12 words
- BIP-39: 15 words
- BIP-39: 18 words
- BIP-39: 21 words
- BIP-39: 24 words
- SLIP-39: 20 words
- SLIP-39: 33 words
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Generate XPUB: Export extended public keys for watch-only wallets.
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Generate XPRIV: Export extended private keys.
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Generate BCH Addresses: Supports both Cashaddr and Legacy formats.
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Sign Transactions: Feature still in development.
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Educational Articles Collection: Step-by-step guidance and resources for safe BCH management:
- Everything you need to know to use Bitcoin Cash with SeedCash
- Step-by-step practical guide to using SeedCash
- Storage and backup of a mnemonic phrase in Bitcoin Cash
- Public and private keys. A system based on elliptic curve asymmetric cryptography for Bitcoin Cash
- Technical understanding of BIP-39
- Technical understanding of SLIP-39
- Technical understanding of BIP-32 and BIP-44
| Version of SeedCash | Find File |
|---|---|
| v1.1.0 | seedcash_v1.1.0.img |
SeedCash provides GPG-signed images to ensure the authenticity and security of each .img file. You can download the latest image here. The following commands guide you through verifying the downloaded image on Mac/Linux and Windows.
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Open a terminal in the directory containing the downloaded folder.
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Import SeedCash public key
gpg --fetch-keys https://keybase.io/seedcash/pgp_keys.asc 
- Verify SeedCash public key fingerprint
gpg --fingerprint
To verify that the public key you imported is correct, you should compare the public key fingerprint you see locally with the public key fingerprint you find here (keybase.io/seedcash). If they match exactly, then you have the correct key from the official source. If there’s any difference — even one character — you should consider it unsafe and re‑import/verify from the official source.
- Verify compatibility between the downloaded image and its signature
gpg --verify seedcash_v.1.1.0.img.sig seedcash_v.1.1.0.img
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Open a terminal in the directory containing the downloaded folder.
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Import SeedCash public key
gpg --fetch-keys https://keybase.io/seedcash/pgp_keys.asc
- Verify SeedCash public key fingerprint
gpg --fingerprint
To verify that the public key you imported is correct, you should compare the public key fingerprint you see locally with the public key fingerprint you find here (keybase.io/seedcash). If they match exactly, then you have the correct key from the official source. If there’s any difference — even one character — you should consider it unsafe and re‑import/verify from the official source.
- Verify compatibility between the downloaded image and its signature
gpg --verify seedcash_v.1.1.0.img.sig seedcash_v.1.1.0.img
- Telegram: SeedCash Telegram
- Twitter: @seedcash_
- Website: seedcash.cash
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