AES encryption standards, also known as high -level encryption standards Rijndael encryption, are NIST, the National Standard Technology Research Institute, aimed at replacing the 21 -century encryption standard of DES. The basic requirements of AES are that the symmetrical group password system is adopted. The key length can be 128, 192 or 256 bits, and the packet length is 128 bits. The algorithm should be easily implemented on various hardware and software. In 1998, the first round of analysis, testing, and solicitation of AES began in NIST, and 15 candidate algorithms were communist.
The full name of AES algorithm ADVANCED Standard is a substitute for the DES algorithm and one of the most popular symmetrical encryption algorithms today. If you want to learn the AES algorithm, you must first figure out the three basic concepts: keys, filling, and patterns.
Pay content for time limit to check for freenAnswer Hello, you are answering this question for you. You need to wait patiently for about three minutes. The answer will be revealed for you immediately, please don't worrynQuestion know the meaningnthanksnAnswer Hello, symmetrical encryption is used in symmetrical encryption (or single -secret encryption), and only one key is used to encrypt and decrypt information. Although the single -secret encryption is a simple process, both parties must fully believe in each other and both hold the backup of this key. But the level of trust is not as simple as imagined. When the two parties try to establish a trust relationship, a safe damage may have occurred. First of all, the transmission of the key is an important issue. If it is intercepted, then there is no security at this key and related information. However, if the user wants to pass information on the public media (such as the Internet), he needs a method to pass the key. Of course, the physical sending and receiving key is the safest, but sometimes this is impossible. One solution is to send it by email, but such information is easily intercepted, which breaks the purpose of encryption. Users cannot encrypt the emails containing the key because they must share another key to encrypt the key email. This dilemma has a problem: if the symmetrical key is encrypted by themselves, why not use the same method directly in the first step? A solution is to encrypt with asymmetric, we will mention it later in this lesson. One theme of all types encrypted is cracking. A threat to reduce the threat caused by symmetrical encryption is to change the regularity of the key. However, regular changes are often difficult, especially for many users in your company. In addition, hackers can use dictionary programs, Password Sniffing to endanger the safety of symmetrical keys, or turn over the desk, wallet and briefcase. Symmetric encryption is also easily defeated by violent attacks.nThe question is too longnThe justified meaning is enoughnAnswer Hello, symmetrical encryption uses a single -key password system encryption method. The same key can be used as information encryption and decryption at the same time. This encryption method is called symmetrical encryption, also known as a single key encryption.nAsk a question, thank younI hope the above answers are helpful to you ~ If you are satisfied with my answer, please pay attention to praise ~n7 morenBleak
In the symmetrical additional decomposition algorithm, the most secure is the AES encryption algorithm (before it should be a DES encryption algorithm). PHP provides two functions that can be used for AES encryption algorithms: MCRYPT and Openssl.
The is abandoned in PHP 7.1.0 (The Function Mycrypt IS) and is removed in PHP 7.2.0, so you should use OpenSSL to implement AES data plus Decrypt.
In some scenarios, we cannot guarantee that both communication systems use phase function clusters to achieve encryption algorithms. Maybe Sitea uses the latest OpenSSL to implement AES encryption, but as a third -party service as a third -party service Siteb may still be using the MCRYPT algorithm, which requires that we must understand the differences between Mcrypt and OpenSSL in order to ensure the consistency of data plus density.
AES encryption standards, also known as high -level encryption standards Rijndael encryption, are NIST, the National Standard Technology Research Institute, aimed at replacing the 21 -century encryption standard of DES. The basic requirements of AES are that the symmetrical group password system is adopted. The key length can be 128, 192 or 256 bits, and the packet length is 128 bits. The algorithm should be easily implemented on various hardware and software. In 1998, the first round of analysis, testing, and solicitation of AES began in NIST, and 15 candidate algorithms were communist.
The full name of AES algorithm ADVANCED Standard is a substitute for the DES algorithm and one of the most popular symmetrical encryption algorithms today. If you want to learn the AES algorithm, you must first figure out the three basic concepts: keys, filling, and patterns.
Pay content for time limit to check for freenAnswer Hello, you are answering this question for you. You need to wait patiently for about three minutes. The answer will be revealed for you immediately, please don't worrynQuestion know the meaningnthanksnAnswer Hello, symmetrical encryption is used in symmetrical encryption (or single -secret encryption), and only one key is used to encrypt and decrypt information. Although the single -secret encryption is a simple process, both parties must fully believe in each other and both hold the backup of this key. But the level of trust is not as simple as imagined. When the two parties try to establish a trust relationship, a safe damage may have occurred. First of all, the transmission of the key is an important issue. If it is intercepted, then there is no security at this key and related information. However, if the user wants to pass information on the public media (such as the Internet), he needs a method to pass the key. Of course, the physical sending and receiving key is the safest, but sometimes this is impossible. One solution is to send it by email, but such information is easily intercepted, which breaks the purpose of encryption. Users cannot encrypt the emails containing the key because they must share another key to encrypt the key email. This dilemma has a problem: if the symmetrical key is encrypted by themselves, why not use the same method directly in the first step? A solution is to encrypt with asymmetric, we will mention it later in this lesson. One theme of all types encrypted is cracking. A threat to reduce the threat caused by symmetrical encryption is to change the regularity of the key. However, regular changes are often difficult, especially for many users in your company. In addition, hackers can use dictionary programs, Password Sniffing to endanger the safety of symmetrical keys, or turn over the desk, wallet and briefcase. Symmetric encryption is also easily defeated by violent attacks.nThe question is too longnThe justified meaning is enoughnAnswer Hello, symmetrical encryption uses a single -key password system encryption method. The same key can be used as information encryption and decryption at the same time. This encryption method is called symmetrical encryption, also known as a single key encryption.nAsk a question, thank younI hope the above answers are helpful to you ~ If you are satisfied with my answer, please pay attention to praise ~n7 morenBleak
In the symmetrical additional decomposition algorithm, the most secure is the AES encryption algorithm (before it should be a DES encryption algorithm). PHP provides two functions that can be used for AES encryption algorithms: MCRYPT and Openssl.
The is abandoned in PHP 7.1.0 (The Function Mycrypt IS) and is removed in PHP 7.2.0, so you should use OpenSSL to implement AES data plus Decrypt.
In some scenarios, we cannot guarantee that both communication systems use phase function clusters to achieve encryption algorithms. Maybe Sitea uses the latest OpenSSL to implement AES encryption, but as a third -party service as a third -party service Siteb may still be using the MCRYPT algorithm, which requires that we must understand the differences between Mcrypt and OpenSSL in order to ensure the consistency of data plus density.