Freecash (FCH) Signature 2.0 and Sign.cash 2.0 released

February 28, 2020 Secret Signature 2.0 and Sign.cash 2.0 released

This update has two main focuses:

1. The addition of “Crypto Identity” (CID) registration is the most important update this time, which will lay the social foundation for the development of the FreeCash ecosystem.

2. By adding hash calculation and encryption and decryption functions, combined with the previous message signature verification and transaction signature decoding and broadcasting functions, Secret Signature 2.0 and the new version of Sign.cash2.0 can already realize various basic applications of asymmetric cryptographic technology.

Major Updates:

1. Sign.cash has added "User Registration". It can create an easily identifiable identity for the Freecash address, namely "Crypto Identity (CID)", which complies with the FEIP3V1 protocol.

2. The "Advanced Transactions" of CryptoSignature 2.0 adds the ability to scan and import op_return content, allowing more extended information, including CID registration, to be imported and signed.

3. Sign.cash adds "hash calculation". It can calculate the SHA256 hash value of text information or files to verify the authenticity of the information.

4. Sign.cash adds "text encryption". You can encrypt text with a public key.

5. Secret Signature 2.0 adds "message decryption". You can use the private key corresponding to the encrypted public key to decrypt the text.

6. Sign.cash has added input and output quantities to each transaction page, and added an "All" button to the last output item to help users send the entire balance with one click.

7. Before Sign.cash and Secret Signature 2.0 complete transaction construction or signature, they display complete transaction information for users to verify.

8. Sign.cash and Signature 2.0 change the unit of all mining fees to c, that is, cash, 1cash=100satoshi=0.000001f, 1f=1 millionc.

9. "Security Settings" has been added to Secret Signature 2.0. The original "Change Password" option has been moved to "Security Settings", and "Security Tips" have been added to facilitate learning how to use Secret Signature safely.

10. The default change address of SecretSignature 2.0 is uniformly changed to the first input address.

11. The default mining fee of CryptoSignature 2.0 is uniformly set to 1satoshi/byte.

12. The scanning of Sign.cash content in Secret Signature 2.0 has been changed from single input and output scanning to continuous scanning.

13. Some other minor improvements or bug fixes.