Blockchain digital currency wallet which good

1. There are many digital currency wallets. Here are some wallets
anmao wallet
anmao wallet is a light wallet developed by Hangzhou anmao blockchain Technology Co., Ltd., which saves storage space compared with full node wallet. And it is a multi currency Cross Chain Wallet, which supports BTC, BCH, LTC, ETH, etc, dash and erc-20 series of tokens. At present, it is the most complete currency digital currency wallet in the true sense
anmao wallet is the only digital currency wallet that supports Chinese mnemonic words. It is composed of 12 Chinese characters, which is convenient for memory and in line with Chinese reading habits
the biggest feature of anmao wallet is that it well applies the scalability of light wallet. While managing a variety of digital assets, it has embedded DAPP list and anmao fishpond mining game. The tokens are directly stored in the wallet, which is convenient, labor-saving and interesting. It can be said that it is a money making wallet
with embedded Android block browser, each transaction can be queried in real time by using transaction address, block height and transaction ID, which is accurate
there are also market and information DAPP, a multi-functional digital currency wallet
bitpai
bitpai wallet is a new generation of blockchain asset integrated service platform developed by bitpai team. It is based on HD wallet technology, multi signature and on chain transaction. It can easily and safely use digital currency and easily send and receive bitcoin on bitpai. At present, the main supported currencies are BTC, BTC, ETH, some erc2.0 tokens, qtum, HSR, dash, safe, LTC, LCH, Zec, etc and Doge
bitpai supports multi address coin issuing, built-in OTC and exchange (third-party service), and can trade with users from all over the world, which is more suitable for professional users with frequent transactions and OTC trading needs
in terms of security, the user controls the private key. After the transaction is completed, the coin is directly kept by the user. If it does not operate for a long time, bitpie will automatically lock, further improving the security of the wallet
disadvantages: for initial users, too many and complex functions are a kind of burden. They only need to send and receive digital currency simply. Too many complex functions increase the learning time cost of users and affect the experience of wallet users
atoken
atoken is a mobile wallet supporting multi currency cross chain exchange, which is safe and convenient. At present, it supports BTC, LTC, ETH, etc, Doge, EOS and other main chain currencies; BCD, BTG, BCH, SBTC, etc; Support all tokens of Ethereum erc20
users hold their own private key, which is stored in app with multiple encryption. They do not access the server in any form, and no one else can touch your digital assets; The wallet adopts 5-layer HD, horizontal isolation and vertical defense architecture; Pbkdf2, sha-512 and other encryption algorithms are used. At the same time, atoken implements the transaction acceleration function of wallet and supports the transaction acceleration of bitcoin and Ethereum
disadvantages: there is no market information in the wallet, which is inconvenient for users to use.

2.

in terms of cloth storage and mining, I recommend Heshu hardware wallet and jiajiabao intelligent home miner. The core advantage of the proct is safety

take sum hardware wallet as an example. The advantages of sum hardware wallet are as follows:

1. The private key seed is encrypted layer by layer, physically isolated and never touched the Internet.

firstly, when creating the wallet, the seed password is generated and stored in the local encryption chip, and the 10 bit payment password is required

then, the transaction is made in the wallet. At this time, the user needs to enter the payment password to obtain the private key to digitally sign the transaction, and the transaction is completed. In addition, the private key seed is permanently stored in the chip, which is physically isolated and never touches the Internet. There is no need to worry about my password being stolen by hackers

Second, the bank system verifies the financial level motherboard and encryption chip

uses the bank system to verify the financial level motherboard, and the private key seed is stored in the chip. If the proct is stolen or lost, and destroyed by malicious violence, the chip will trigger a self destruct circuit, and immediately permanently and irrecoverably delete all the information in the area

Third, it supports the withdrawal of global bitcoin ATM, which is convenient and fast

the reason why digital assets attract the attention of many fields in the world is that it is creating a global fast circulation, and the larger the circulation field is, the wider the scope is, and the higher its use value is. The core of digital assets is the medium it acts on among currencies. The Heshu wallet has built-in many mainstream exchanges in the world. It can trade digital assets anytime and anywhere. With one machine in hand, it can walk around the world without worry, and no longer have to worry about exchanging foreign currency

Different from conventional digital wallets, multi signature wallets need the authorization of multiple key holders to transfer digital currency, so the security of multi signature wallets is higher. Ordinary Wallet: a wants to transfer a bitcoin to X. A only needs his signature (using the private key) to complete the transaction. Sum Wallet: if a wants to transfer a bitcoin to x, a multi signature verification is set (at least two signatures of Abc3 indivials are required to transfer the money), then a needs B or C to complete the signature (using the private key) when a wants to transfer the money to X. I hope I can help you. Thank you

3. A secure and reliable digital wallet should be designed from at least five dimensions:
1. Security risk of running environment
the core file of encrypted digital currency Wallet - private key / mnemonics is stored on the terminal device, whether it is PC or mobile terminal, if the terminal device appears unsafe phenomenon, There is a very high security risk for the private key / mnemonic
at the beginning of design, a secure digital wallet can avoid the possibility of private key / mnemonics being stolen e to the running environment. The security problems of the running environment on the terminal mainly include virus software, operating system vulnerabilities and hardware vulnerabilities
2. The security risk of network transmission
the security of network transmission is more reflected in the ability to resist man in the middle attack. Man in the middle attack means that the attacker creates independent contact with both ends of the communication and exchanges the data they receive, so that both ends of the communication think that they are talking directly with each other through a private connection, but in fact the whole conversation is completely controlled by the attacker
although most digital wallet applications use the HTTPS protocol to communicate with the server, the man in the middle attack method is to get the content of the HTTPS protocol by installing a digital certificate in the user terminal
a secure digital wallet needs to be able to scan the legality of all the digital certificates in the terminal, check the proxy settings in the network transmission process, and ensure the security of the basic network communication environment
in the development of digital wallet, whether to use two-way verification for communication verification at the network transmission level is also an important criterion to measure the security of a digital wallet application
3. The security risk of file storage mode
for the private key / mnemonics of digital wallet, the storage mode of terminal device also needs to be paid attention to in the security design. The access right of private key / mnemonic file directory, the form of private key / mnemonic file storage and the design of encryption algorithm all need to be strictly designed
when we analyze the security of several mainstream digital wallets, we find that even the well-known digital wallets are random in the storage of private key / mnemonic words. There are both plaintext storage and encrypted storage, but the decryption key is fixed in the code, which can not play any role in security defense
4. The security risk of the application itself
the security risk of the application itself mainly focuses on the security defense of the application installation package itself
whether the application installation package has the ability of anti tampering is a very core technical ability. In addition, memory security, anti debugging ability, life cycle management of private key / mnemonics, security of debugging log and security of development process also need to be enhanced
5. Security risk of data backup
if the mobile application can be backed up, it can use the machine with more powerful computing performance to brutally crack the private key / mnemonics. For example, if android:allowBackup Property is set to allow backup, then the backup mechanism of the system can be used to back up the application data files, and the private key / mnemonics of the encrypted digital currency will be backed up to the external media, which breaks the security boundary design of the operating system from another direction
for the majority of users, the security of digital wallet also means the security of wealth, so we must be careful when choosing digital wallet
I have used several wallets such as coin letter socoin and coinplus
in terms of personal experience, socoin and coinplus are very simple and easy to use. They are not only decentralized multi-functional cross chain digital currency wallets with social functions, but also integrate Multi Chain multi currency wallets, payment and settlement platform, currency trading platform, social groups, information market and other functions, which can meet almost all your needs for digital currency in one stop.

5. The list of the safest blockchain wallets is as follows:
, # 160
Coin Purse
we are committed to becoming a leader in the field of digital currency. One stop management of multi currency digital assets is safe and convenient; Second reading of global trading market, rational management and control of assets; Comprehensive analysis, explore the value of digital assets 1) Private key encryption technology to create advanced security privacy, your private key is only known to you, the platform does not store any user private key information 2) A set of mnemonics can generate the private keys of different blockchains, manage the assets of different blockchains, and make the asset transaction more smooth 3) Multi signature technology increases the security of digital assets 4) Team members include experts in information security, blockchain development risk control and other fields, and digital asset security control is strengthened. Moreover, the development team of coin purse attaches great importance to the user experience. As long as they feed back questions, they will be answered and solved< br /> < br />Bitcoin core
 
bitcoin core is one of the earliest wallets and the most mainstream wallets at present. Almost people who play with bitcoin are using it. It has complete functions, and can query block, transaction, public key, private key and other information. Moreover, bitcoin core can also encrypt the wallet, which has very high security. However, bitcoin core only supports the PC side, and it is a full node wallet with a node size of 150gb, which requires high computer hard disk space< br /> < br />Blockchain
 
blockchain is also a wallet dedicated to bitcoin service. Its size is only 50m. Although it is a light wallet, it has many functions. It not only supports the storage of Ethereum and bitcoin, but also has its own mnemonic words. Even if you forget all your ID and password, you can also recover capital and transaction information through mnemonic words. However, blockchain only supports IOS devices on the mobile end, and users using Android or PC can only log in to blockchain.info.

6.

Matlab neural network toolbox can be used to extract samples first, normalize them with mapminmax function, then establish the network with newff function, set training parameters, train them with train function, and finally see the prediction results with SIM function

in the process of training, there is a performance that can be observed, and its training goal is the goal you set. In the process of training, it will automatically separate a part of the samples as validation verification, which can ensure the fitting. In order to evaluate the effect, the accuracy of the final prediction should be considered

The appendix is an example of BP prediction