PUC chip miner
Publish: 2021-05-24 02:01:41
1. The secret key doesn't matter. It's only used for activation. It won't be controlled
2. Public key is usually used to encrypt session key, verify digital signature, or encrypt data that can be decrypted with corresponding private key
public key is a key pair (i.e. a public key) obtained by an algorithm, one of which is known as public key. The key pair obtained by this algorithm can be guaranteed to be unique in the world
when using this key pair, if one key is used to encrypt a piece of data, the other key must be used to decrypt it. For example, if you encrypt data with public key, you must decrypt it with private key, otherwise decryption will not succeed
most public key algorithms are based on the difficulty of computational complexity, which usually comes from number theory. For example, RSA comes from integer factorization problem; DSA originates from the discrete logarithm problem. Elliptic curve cryptography (ECC), which has been developing rapidly in recent years, is based on the mathematical problems related to ECC and is equivalent to discrete logarithm. Because most of the underlying problems involve molar multiplication or exponential operation, more computing resources are needed than block cipher. Therefore, the public key system is usually compound, which contains an efficient symmetric key algorithm to encrypt information, and then encrypts the keys used in the symmetric key system with the public key to improve efficiency. Its disadvantage is that the speed of encrypting large capacity information is slow, its advantage is that it can be used as identity authentication, and the key sending method is relatively simple and secure. Common public key encryption algorithms include RSA, DSA, ECA and so on.
public key is a key pair (i.e. a public key) obtained by an algorithm, one of which is known as public key. The key pair obtained by this algorithm can be guaranteed to be unique in the world
when using this key pair, if one key is used to encrypt a piece of data, the other key must be used to decrypt it. For example, if you encrypt data with public key, you must decrypt it with private key, otherwise decryption will not succeed
most public key algorithms are based on the difficulty of computational complexity, which usually comes from number theory. For example, RSA comes from integer factorization problem; DSA originates from the discrete logarithm problem. Elliptic curve cryptography (ECC), which has been developing rapidly in recent years, is based on the mathematical problems related to ECC and is equivalent to discrete logarithm. Because most of the underlying problems involve molar multiplication or exponential operation, more computing resources are needed than block cipher. Therefore, the public key system is usually compound, which contains an efficient symmetric key algorithm to encrypt information, and then encrypts the keys used in the symmetric key system with the public key to improve efficiency. Its disadvantage is that the speed of encrypting large capacity information is slow, its advantage is that it can be used as identity authentication, and the key sending method is relatively simple and secure. Common public key encryption algorithms include RSA, DSA, ECA and so on.
3. If it is marked out, you should be more careful. Once someone knows the account, it will be stolen. It is suggested that you change the password as soon as possible. If it is found that it has been stolen, it will be frozen immediately.
4. Win10 system key
limited activation times, specific
slmgr - DLV
View activation information
limited activation times, specific
slmgr - DLV
View activation information
5. Unknown_Error
6. For example, the bank password is secret to us, but it can be called plaintext to the password keyboard of ATM. The password we input is encrypted by the password keyboard and then transmitted to the ATM background. When the password keyboard encrypts the password we input, it needs a key, such as 1, Then through the algorithm of 1 + 2 = 3, the ciphertext is 3, where 2 is the key, and this algorithm is the cipher algorithm. When the ciphertext 3 is transmitted to the background, the background has to decrypt. The decryption calculation is 3-2 = 1, and then the input password 1 is obtained
this is just my personal understanding. This process is certainly not so simple. There will be encryption algorithms in general bank cards. I don't know if someone agrees with it.
this is just my personal understanding. This process is certainly not so simple. There will be encryption algorithms in general bank cards. I don't know if someone agrees with it.
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