Devices, systems, and methods for securing and transacting cryptocurrency assets

1. A system for secure transactions of cryptocurrencies, the system comprising:

a computing device having a software application installed thereon, the computing device configured to store a public cryptocurrency key; and

a hardware encryption device configured to store a private cryptocurrency encryption key, the hardware encryption device configured to selectively connect in data communication to the computing device for signing a cryptocurrency transaction, the hardware encryption device including one or more biometric readers configured to capture a user's biometric credentials for authenticating the private cryptocurrency encryption key upon request for biometric verification from the hardware encryption device by the software application, when the software application detects that the hardware encryption device has been associated with the computing device, and when a user wants to sign the cryptocurrency transaction in conjunction with the software application;

wherein the computing device broadcasts a signed transaction received from the hardware encryption device for verification of the cryptocurrency transaction and wherein the one or more biometric readers are not activated to sign the cryptocurrency transaction when the user wants to transfer an amount of cryptocurrency from the hardware encryption device to the software application that is below a predefined amount.

2. The system of claim 1 , wherein the one or more biometric readers include a fingerprint reader or an eye scanner, and wherein the one or more biometric readers also include a display component configured to enable the user to enter the biometric credentials.

3. The system of claim 1 , wherein the computing device is a local computing device that includes a mobile telephone, a laptop computer, or a desktop computer.

4. The system of claim 1 , wherein the computing device is a point-of-sale computing device for processing payment transactions using a peer-to-peer communication with the hardware encryption device.

5. The system of claim 1 , wherein the hardware encryption device is configured to store one or more applications that enable cryptocurrency transactions using specific cryptocurrencies.

6. The system of claim 1 , wherein the cryptocurrency transaction is written to a blockchain after verification of the biometric credentials.

7. A method, comprising:

detecting a cold wallet coupled to a mobile computing device, the mobile computing device storing a public cryptocurrency key and the cold wallet storing a private cryptocurrency key, the public cryptocurrency key and the private cryptocurrency key required to sign a cryptocurrency transaction involving the cold wallet;

requesting authentication of the cold wallet using one or more biometric readers when the cold wallet is coupled to the mobile computing device; and

requesting authentication to sign the cryptocurrency transaction using the one or more biometric readers,

wherein the mobile computing device broadcasts a signed transaction received from the cold wallet for verification of the cryptocurrency transaction and wherein the one or more biometric readers are not activated to sign the cryptocurrency transaction when the user wants to transfer an amount of cryptocurrency from the cold wallet to a hot wallet associated with the mobile computing device that is below a predefined amount.

8. The method of claim 7 , wherein the hot wallet at least includes a software application resident on the mobile computing device or accessible from the mobile computing device.

9. The method of claim 7 , wherein the cold wallet at least includes a hardware encryption device that includes the one or more biometric readers.

10. The method of claim 7 , wherein the one or more biometric readers include a fingerprint reader or an eye scanner, and wherein the one or more biometric readers also include a display component configured to enable the user to enter biometric credentials.

11. The method of claim 7 , wherein the cold wallet is configured to store one or more applications that enable cryptocurrency transactions using specific cryptocurrencies.

12. The method of claim 7 , wherein the cryptocurrency transaction is written to a blockchain after verification of the user's biometric credentials.